US20080042621A1 - Method for Controlling and System for Charging a Battery Power Supply Unit - Google Patents
Method for Controlling and System for Charging a Battery Power Supply Unit Download PDFInfo
- Publication number
- US20080042621A1 US20080042621A1 US11/772,712 US77271207A US2008042621A1 US 20080042621 A1 US20080042621 A1 US 20080042621A1 US 77271207 A US77271207 A US 77271207A US 2008042621 A1 US2008042621 A1 US 2008042621A1
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- United States
- Prior art keywords
- power supply
- supply unit
- temperature
- heating element
- casing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/02—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
- B60L1/04—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits fed by the power supply line
- B60L1/06—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits fed by the power supply line using only one supply
- B60L1/08—Methods and devices for control or regulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1407—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle on vehicles not being driven by a motor, e.g. bicycles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/60—Navigation input
- B60L2240/66—Ambient conditions
- B60L2240/662—Temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Definitions
- the present invention relates to a method for controlling and a system for charging a battery power supply unit, in particular for supplying power to electronic devices mounted on bicycles.
- Electronic devices mounted on bicycles for example, for controlling the electronic gearshift and/or for acquiring, displaying, and controlling riding parameters and various functions, provide for the use of a power supply unit.
- the power supply unit typically consists of one or more batteries typically connected in series, also referred to as a battery pack.
- batteries used for such electronic devices are of a rechargeable type, they need to be charged by an external energy source, for example, a conventional electrical outlet or an automobile battery through a cigarette lighter socket of the automobile.
- the battery charging process should take into account some characteristic parameters of the battery itself, dependant upon its type and, in particular, its chemistry. Such characteristic parameters are supplied by the battery manufacturer.
- closed range is indicated as closed charging temperature range.
- the power supply unit has an associated temperature sensor and in the battery charger a control logic is provided that suspends the charging of the battery if the temperature detected by the sensor is higher than a predetermined limit temperature, signalling overheating.
- the battery power supply unit can reach temperature values lower than the lower limit of the aforementioned closed charging temperature range. Therefore, charging of the power supply unit on a bicycle parked outdoors or in a non-heated garage cannot take place; charging of the power supply unit removed from the bicycle and placed in a heated area also cannot occur until the temperature of the power supply unit goes above such a lower temperature limit.
- the technical problem at the basis of the present invention is to make a method for controlling and a system for charging batteries that allow battery charging to also be carried out in critical temperature conditions.
- the invention concerns a method for controlling the charging of a rechargeable battery power supply unit for a bicycle electronic device, comprising the steps of detecting at least one temperature of the power supply unit, and supplying heat energy to the power supply unit when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
- the invention concerns a power supply system for a bicycle electronic device, comprising a rechargeable battery power supply unit, at least one sensor of a temperature of the power supply unit, at least one selectively activatable heating element, that can be thermally associated with the power supply unit, and a heating controller that receives in input the output of the at least one temperature sensor and actuates the heating element when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
- the invention concerns a power supply device for a bicycle electronic device comprising a power supply unit comprising at least one rechargeable battery, a connector for a removable electrical power and data connection with a battery charger, at least one temperature sensor thermally coupled with the power supply unit, and at least one selectively activatable heating element, thermally coupled with the power supply unit, wherein the heating element is selectively actuated when the power supply device is connected to the battery charger and when the temperature detected by the sensor is lower than or equal to a lower temperature threshold within a closed charging temperature range, characteristic of the power supply unit.
- the invention concerns a bicycle electronic device comprising a connector for a removable electrical power and data connection with a power supply unit, and a heating controller that receives in input a signal indicative of a detected temperature of the power supply unit and provides a signal for the actuation of a heating element of the power supply unit when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
- FIG. 1 is a block diagram of a first embodiment of the system of the invention, connected to an external energy source;
- FIG. 2 is a block diagram of a second embodiment of the system of the invention, connected to an external energy source;
- FIG. 6 is a block diagram of a second embodiment of the method of the invention.
- FIG. 8 represents a regulation block of FIG. 7 in greater detail.
- the invention concerns a method for controlling the charging of a rechargeable battery power supply unit for a bicycle electronic device, comprising the steps of
- closed temperature range means a closed temperature range comprising the extreme values.
- the step of supplying heat energy to the power supply unit is carried out until the detected temperature becomes higher than an upper temperature threshold.
- the upper temperature threshold is lower, more preferably lower by about 25° C., than the upper limit of the closed charging temperature range.
- the step of supplying heat energy comprises supplying heat power as a function of a difference between the lower temperature threshold and the detected temperature, in this way implementing a closed loop feedback control.
- the function is preferably a function of the proportional, integrative, and/or derivative type.
- the step of supplying heat energy is carried out by voltage- or current-supplying a heating element of the resistive type, thermally coupled with the battery power supply unit.
- the step of detecting at least one temperature of the power supply unit comprises detecting a first temperature for controlling the execution of the step of supplying electrical energy and a second temperature for controlling the execution of the step of supplying heat energy.
- At least one of the steps of detecting a temperature, supplying heat energy and supplying electrical energy is carried out independently for each of a plurality of batteries of the battery power supply unit. In this way, it is possible to individually control the charging process and the final charging level in each battery, reducing the risk of damage of the power supply unit and extending its useful life.
- the step of supplying energy provides a first temporal charging step at constant current and a second temporal charging step at constant voltage, in accordance with the teachings of the aforementioned known method.
- the invention concerns a power supply system for a bicycle electronic device, comprising
- At least one selectively activatable heating element that can be thermally associated with the power supply unit
- a heating controller that receives in input the output of the at least one temperature sensor and actuates the heating element when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
- the system further comprises an electrical circuit for receiving energy from an external energy source and for selectively supplying electrical charging energy to the power supply unit.
- the upper temperature threshold is lower than the upper limit of the closed charging temperature range, and more preferably is about 15° C.
- the power supply unit comprises at least two batteries and at least one temperature sensor is thermally associated with each battery.
- a temperature sensor and/or a heating element can be arranged between two adjacent batteries of the power supply unit.
- the detected temperature can thus be the average temperature or the minimum temperature of those of the various batteries making up the power supply unit, or the various embodiments of the method of the invention described above can be implemented with respect to the individual temperatures should a plurality of heating elements also be provided.
- the system comprises a power regulator connected between a power supply line of the system and the heating element, driven by the heating controller to selectively actuate the at least one heating element.
- the power regulator can also simply be an ON/OFF switch. More preferably, the power regulator is selected from the group consisting of relays and solid-state devices, preferably MOSFET (metal-oxide-semiconductor field-effect transistor) and transistors.
- the heating controller actuates the at least one heating element to supply heat power as a function of a difference between the lower temperature threshold and a temperature proportional to the detected temperature, thus implementing a closed loop feedback control.
- the function is preferably of the proportional, integrative, and/or derivative type.
- the heating controller can comprise a multiplier of the output signal of the at least one temperature sensor, a subtractor for subtracting the output of the multiplier from the lower temperature threshold and for obtaining an error signal, and a P.I.D. (proportional-integral-derivative) type regulator block—in other words having a transfer function of the proportional, derivative, and/or integrative type—acting upon the error signal to output a driving signal for the power regulator, the driving of the power regulator regulating a voltage at the ends of the heating element or a current through the heating element.
- P.I.D. proportional-integral-derivative
- the at least one heating element is of the resistive type and the P.I.D. regulator block causes a voltage value at the ends of the heating element or a current value flowing through it that increases as the error signal increases.
- the at least one heating element is of the resistive type and the P.I.D. regulator block causes a modulated voltage at the ends of the heating element, or a modulated current through the heating element, the duty cycle of which increases as the error signal increases.
- the heating element is of the resistive type, more preferably the heating element comprises at least one resistive sheet applied to at least one battery of the power supply unit, and even more preferably the at least one resistive sheet is interposed between two adjacent batteries of the power supply unit.
- the at least one temperature sensor comprises a thermistor, more preferably a negative temperature coefficient (NTC) thermistor.
- NTC negative temperature coefficient
- the system further comprises a charge controller that receives in input an output of the at least one temperature sensor and controls the electrical circuit to actuate the supply of electrical charging energy only when the detected temperature is within the closed charging temperature range.
- a charge controller that receives in input an output of the at least one temperature sensor and controls the electrical circuit to actuate the supply of electrical charging energy only when the detected temperature is within the closed charging temperature range.
- the at least one temperature sensor comprises at least one first temperature sensor connected to the charge controller, and at least one second temperature sensor connected to the heating controller.
- the electrical circuit comprises at least one charge circuit of the linear or switching type.
- the charge circuit can be controlled by the charge controller to carry out a first temporal charging step at constant current and a second temporal charging step at constant voltage.
- the charge controller and the heating controller can be embodied in a common microprocessor.
- the system further comprises a power supply and regulator circuit that can be connected to the external energy source to provide a regulated power supply to the system.
- the system further comprises at least one user interface device.
- at least one user interface device In this way it is possible to set suitable values for the closed characteristic temperature range and/or for the lower temperature threshold and/or for the upper temperature threshold.
- the system can further comprise at least one electronic device for controlling an electronic gearshift and/or for acquiring, displaying, and controlling bicycle riding parameters and other functions.
- the components of the system can be housed in a single casing, which can be fixed to the bicycle frame.
- the electrical charging circuit is housed in a first casing and the power supply unit is housed in a second casing, the first and the second casing being mechanically and electrically removably connectable. In this way it is possible to reduce the weight of the bicycle by detaching the first casing or battery charger from the second casing, comprising the power supply unit or battery pack and possibly the electronic device, during use of the bicycle.
- the charge controller is housed in the first casing.
- the power supply device is lighter and more cost-effective, an advantageous aspect when two or more interchangeable removable power supply devices are provided.
- the interface device(s) is (are) housed in the first casing.
- the at least one temperature sensor is housed in the second casing.
- the at least one temperature sensor can be housed in the first casing and come into thermal contact with the power supply unit when the first casing and the second casing are connected, namely during charging.
- the at least one heating element is housed in the second casing.
- the at least one heating element can be housed in the first casing and come into thermal contact with the power supply unit when the first casing and the second casing are connected, namely during charging.
- the at least one electronic device can be housed in the second casing.
- the at least one electronic device can be housed in a third casing, the second casing being mechanically and electrically connectable to the third casing.
- the power supply unit or battery pack can be removed from the bicycle during charging, possibly being replaced by a twin battery pack to allow the prolonged operation of the electronic device.
- the heating controller can be housed in the first casing, in the second casing, or in the third casing.
- the power regulator can be housed in the first casing, in the second casing, or in the third casing.
- the heating controller can comprise an electronic circuit mounted on a printed circuit of the electronic device, or it can be embodied in a microprocessor of the electronic device.
- the invention concerns a power supply device for a bicycle electronic device comprising
- a power supply unit comprising at least one rechargeable battery
- At least one temperature sensor thermally coupled with the power supply unit
- At least one selectively activatable heating element thermally coupled with the power supply unit
- heating element is selectively actuated when the power supply device is connected to the battery charger and when the temperature detected by the sensor is lower than or equal to a lower temperature threshold within a closed charging temperature range, characteristic of the power supply unit.
- the power supply device can further comprise a power regulator for the selective actuation of the heating element, the power regulator being controlled by the battery charger.
- the power supply device can further comprise a connector for a removable electrical power and data connection with an electronic device for controlling an electronic gearshift and/or for acquiring, displaying, and controlling bicycle riding parameters and other functions, and a power regulator for the selective actuation of the heating element, the power regulator being controlled by the electronic device.
- the invention concerns a battery charger for a bicycle electronic device, comprising
- a heating controller that receives in input a signal indicative of a detected temperature of the power supply unit and provides a signal for the actuation of a heating element of the power supply unit when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
- the invention concerns a bicycle electronic device comprising
- a heating controller that receives in input a signal indicative of a detected temperature of the power supply unit and provides a signal for the actuation of a heating element of the power supply unit when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
- FIG. 1 The block diagram of a first embodiment of the system of the invention is shown in FIG. 1 .
- three functional blocks are identified, namely a battery charger 1 , a rechargeable power supply device 2 , and a bicycle electronic device 3 , which in the most general embodiment of the system of the invention is a device external to the system itself.
- the bicycle electronic device 3 and the rechargeable power supply device 2 can indeed be housed in separate casings, indicated hereafter with the same reference numerals 2 and 3 , mechanically and electrically removably connectable to each other.
- the bicycle electronic device 3 and the power supply device 2 can be housed inside a same casing 2 a.
- the battery charger 1 and the power supply device 2 can be housed in separate casings as well, indicated hereafter with the same reference numerals 1 and 2 , mechanically and electrically removably connectable to each other.
- the battery charger 1 and the power supply device 2 can be housed inside a same casing 13 .
- the battery charger 1 , the power supply device 2 and the bicycle electronic device 3 can be housed inside a same casing 14 .
- the battery charger 1 is power supplied, in a per se known way, through connection to an external energy source P as, for example, a conventional electrical outlet at 220V or 110V, or a cigarette lighter of an automobile.
- the battery charger 1 supplies power to the power supply device 2 through a line 18 and the power supply device 2 supplies power to the bicycle electronic device 3 through a line 22 .
- an external energy source P as, for example, a conventional electrical outlet at 220V or 110V, or a cigarette lighter of an automobile.
- the battery charger 1 supplies power to the power supply device 2 through a line 18 and the power supply device 2 supplies power to the bicycle electronic device 3 through a line 22 .
- a ground connection not shown for the sake of simplicity.
- the electrical power connections 18 , 22 and the other electrical power and data connections to be described between the battery charger 1 , the power supply device 2 , and the bicycle electronic device 3 are illustrated as removable, made through two pairs of multipolar connectors CN 1 , CN 2 . It is understood that one or both pairs of connectors CN 1 , CN 2 will be missing in case only one or two casings are provided.
- the rechargeable power supply device 2 comprises a power supply unit 4 , a heating element 5 , and a temperature sensor 6 .
- the power supply unit 4 could consist of many battery elements, for example, connected in series, to obtain an adequate voltage for the power supply of the bicycle electronic device 3 .
- the power supply unit 4 is of the rechargeable type, for example, of the lithium-ion type with polymeric electrolyte.
- the heating element 5 preferably consists of a resistive sheet placed in contact with the outer surface of the power supply unit 4 .
- the temperature sensor 6 is arranged near to the power supply unit 4 , also preferably in contact with the outer surface of the power supply unit 4 , and it preferably consists of a passive element like an NTC (Negative Temperature Coefficient) thermistor.
- NTC Negative Temperature Coefficient
- a sensor could be of a different type, for example, a PTC (Positive Temperature Coefficient) thermistor, an active (analogue or digital) sensor, etc.
- the heating element 5 and/or the temperature sensor 6 can be part of the battery charger 1 and come into thermal contact with the power supply unit 4 when connected to the battery charger 1 , namely during charging.
- the battery charger 1 comprises a first, charging control, logic unit or charge controller 7 , of the known type, and a second, heating control, logic unit or heating controller 8 .
- the first and the second logic units 7 and 8 are advantageously inside the same microprocessor unit.
- the first, charging control, logic unit 7 comprises an input 19 connected to the temperature sensor 6 of the power supply device 2 , and is connected to a charge circuit 9 , for example of the linear or switching type, of the battery charger 1 .
- a charge circuit 9 for example of the linear or switching type, of the battery charger 1 .
- the power supply unit 4 consists of many battery elements, it can be provided to use as many charge circuits 9 suitably connectable to the battery elements, for example as described in EP 1 557 926 A1, which is incorporated herein by reference.
- the second, heating control, logic unit 8 comprises an input connected through a data line 20 to the temperature sensor 6 of the power supply device 2 , and a driving output 12 for a regulator 11 of the power of the heating element 5 .
- the power regulator 11 can also be a simple ON/OFF switch.
- the power regulator 11 preferably consists of a MOSFET, but in different embodiments such a power regulator could, for example, consist of a transistor or a relay.
- the first and the second logic units 7 and 8 and the charge circuit 9 are power supplied by the external energy source P through the power supply line 21 through the interposition of power supply/regulator circuits 23 of a know type.
- the power regulator 11 is connected on one side to the power supply line 21 and on the other side to the heating element 5 through the line 25 .
- the battery charger 1 can advantageously be provided with one or more interface devices 10 , for example, an input keyboard or keypad and a display.
- interface devices 10 for example, an input keyboard or keypad and a display.
- FIG. 1 The operation of the system of FIG. 1 shall be described hereafter with reference to FIGS. 5-8 .
- FIG. 2 A second embodiment of the system according to the invention is illustrated in FIG. 2 .
- the embodiment of FIG. 2 differs from the embodiment of FIG. 1 in that the power regulator 11 is associated with the heating element 5 inside the power supply device 2 .
- the control output 12 of the power regulator 11 comes out from the battery charger 1 and reaches the power supply device 2 , through the pair of multipolar connectors CN 1 when provided for.
- Such an embodiment can be particularly advantageous when the power regulator 11 is of the solid state type, for example of the MOSFET type, since during its actuation and deactuation, it undergoes heating caused by switching losses.
- the heat energy produced by such losses is advantageously exploited to heat the battery 4 (in addition to the heating produced by the heating element 6 , as further described hereafter).
- FIG. 3 A third embodiment of the system according to the invention is illustrated in FIG. 3 .
- the embodiment of FIG. 3 differs from the embodiment of FIG. 1 in that the second heating control unit 8 and the power regulator 11 are housed in the casing of the electronic device 3 .
- the power supply line 21 comes out from the battery charger 1 towards the electronic device 3 , through the pairs of multipolar connectors CN 1 and CN 2 when provided for, to power supply the second, heating control, logic unit 8 .
- the power supply line 25 of the heater 5 and the data line 20 between the temperature sensor 6 and the temperature controller 8 cross the pair of multipolar connectors CN 2 , when provided for.
- the second heating control unit 8 can consist of an electronic circuit mounted on the same printed circuit where the electronic circuits of the electronic device 3 are arranged.
- the heating control unit 8 can belong to a microprocessor of the electronic device 3 , intended for other bicycle control functions, for example, the management of an automatic or semiautomatic gearshift.
- FIG. 4 A fourth embodiment of the system according to the invention is illustrated in FIG. 4 .
- the embodiment of FIG. 4 differs from the embodiment of FIG. 3 in that the power regulator 11 is associated with the heating element 5 inside the casing of the power supply device 2 .
- the control line 12 of the regulator 11 comes out from the electronic device 3 towards the power supply device 2 through the pair of multipolar connectors CN 2 , when provided for.
- a first embodiment of the method according to the invention shall be described with reference to FIG. 5 and to the system of one of the embodiments described above.
- Such parameters comprise:
- the parameter Tlow can be omitted when the value of the lower limit charging temperature T 1 is used instead.
- T 1 and T 2 are stored in the first, charging control, logic unit 7 , whereas the value of Tlow is stored in the second, heating control, logic unit 8 .
- the battery charger 1 When the charging of the power supply unit 4 needs to be carried out, the battery charger 1 is connected to the external energy source P and, if necessary, to the power supply device 2 through the pair of connectors CN 1 .
- the way of charging by the charge circuit 9 can be of any type, for example, as described in the aforementioned document EP 1 557 926 A1, wherein charging provides for a first charging step at constant current and a second charging step at constant voltage.
- the second, heating control, logic unit 8 operates to carry out the “thermoregulation” of the power supply unit 4 independently of the operation of the first, charging control, logic unit 7 .
- the regulation cycle thus implemented is therefore a temperature control performed on a threshold Tlow.
- T 1 , T 2 , and Tlow are suitably selected to allow the correct operation of the apparatus.
- the lower temperature threshold Tlow on which the temperature control is carried out is at a safety value that ensures the charging step by the first, charging control, logic unit 7 taking possible inaccuracies in temperature detection by the sensor 6 into account, or of different readings, for whatever reason, by the two logic units 7 and 8 in the case of using two dedicated temperature sensors.
- the heating 102 consists of a preliminary operation with respect to the charging operation, which shall begin when the temperature of the power supply unit 4 reaches the value T 1 .
- Thigh is stored in the second, heating control, logic unit 8 .
- the heating control logic unit 8 deactuates the heating element 5 opening the power regulator 11 or ON/OFF switch.
- the regulation cycle thus implemented is therefore a temperature control performed on two thresholds Thigh and Tlow.
- the temperature control performed on two thresholds Thigh and Tlow can be preferable with respect to the control with a single threshold Tlow since it allows the number of actuations and deactuations of the power regulator 11 to be reduced with a reduction of the switching losses, especially when such a power regulator is a solid state power regulator (e.g., MOSFET).
- this control performed on two thresholds, Thigh and Tlow allows possible instability of the system to be avoided should the temperature T of the power supply unit 4 quickly change about the temperature Tlow, which would involve continuous switching of the power regulator 11 in case of control carried out on the lower temperature threshold Tlow only according to FIG. 5 .
- the heating control unit 8 detects the temperature value T of the power supply unit 4 through the temperature sensor 6 . If the detected value T is higher than the lower temperature threshold or reference temperature Tref, the heating control unit 8 remains in inactive state, i.e., the heating element 5 is deactuated—block 302 . If the detected value T is lower than or equal to the reference temperature Tref, the heating control unit 8 in block 303 , through the control output and the regulator 11 , actuates the heating element 5 through a signal obtained with a closed loop feedback control system shown schematically in FIG. 8 .
- the driving signal for the heating element 5 is obtained as processing of an error signal suitably filtered by a P.I.D. regulator block.
- the temperature value T detected by the temperature sensor 6 of the power supply unit 4 is multiplied in a multiplier 26 by a gain value GAIN, which can also be unitary.
- the signal at the output of the multiplier, GAIN*T, is subtracted from the value Tref in a subtractor node 27 .
- the error signal ⁇ is sent to a P.I.D. type regulator block 28 , which has a transfer function of the proportional P, derivative D and/or integrative I type.
- the output signal S( ⁇ ) of the regulator block 28 is used to drive the power regulator 11 so that the voltage V(t) at the ends of the heating element 5 or the current I(t) that is flowing in the heating element 5 has the desired progression to provide the desired heat power.
- the drive signal S( ⁇ ) can be a signal that causes a voltage value V(t) at the ends of the heating element 5 , when of the resistive type, which increases as the error signal ⁇ increases, as illustrated in the diagram of FIG. 9 .
- the drive signal S( ⁇ ) can be a signal that causes a voltage value V(t) at the ends of the heating element 5 , or a current value I(t) through the heating element 5 , when of the resistive type, pulse width modulated (PWM signal), wherein the duty cycle of the modulated signal increases as the error signal ⁇ increases, as illustrated in FIG. 10 .
- PWM signal pulse width modulated
- a plurality of temperature sensors 6 can be provided for, to detect the respective temperatures.
- the various embodiments of the method of the invention described above can, in this case, be implemented with respect to the individual temperatures should a plurality of heating elements 5 also be provided, or else with respect to the average temperature or to the minimum temperature among those of the various batteries making up the power supply unit 4 .
Abstract
A method of controlling and a system for charging a battery power supply unit for a bicycle electronic device, even in critical temperature conditions, is provided. Heat energy is supplied to the power supply unit when its temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
Description
- The present invention relates to a method for controlling and a system for charging a battery power supply unit, in particular for supplying power to electronic devices mounted on bicycles.
- Electronic devices mounted on bicycles, for example, for controlling the electronic gearshift and/or for acquiring, displaying, and controlling riding parameters and various functions, provide for the use of a power supply unit.
- The power supply unit typically consists of one or more batteries typically connected in series, also referred to as a battery pack. When the batteries used for such electronic devices are of a rechargeable type, they need to be charged by an external energy source, for example, a conventional electrical outlet or an automobile battery through a cigarette lighter socket of the automobile.
- The battery charging process should take into account some characteristic parameters of the battery itself, dependant upon its type and, in particular, its chemistry. Such characteristic parameters are supplied by the battery manufacturer.
- In particular, the charging of the battery at a temperature outside of a given closed characteristic temperature range—not necessarily coinciding with, and usually more limited than, the closed operating temperature range of the battery—can lead to the battery itself being damaged.
- In the following present description and in the attached claims, such a closed range is indicated as closed charging temperature range.
- In a known method and a system for charging a battery power supply unit for bicycle electronic devices, the power supply unit has an associated temperature sensor and in the battery charger a control logic is provided that suspends the charging of the battery if the temperature detected by the sensor is higher than a predetermined limit temperature, signalling overheating.
- During the cold seasons, the battery power supply unit can reach temperature values lower than the lower limit of the aforementioned closed charging temperature range. Therefore, charging of the power supply unit on a bicycle parked outdoors or in a non-heated garage cannot take place; charging of the power supply unit removed from the bicycle and placed in a heated area also cannot occur until the temperature of the power supply unit goes above such a lower temperature limit.
- The technical problem at the basis of the present invention is to make a method for controlling and a system for charging batteries that allow battery charging to also be carried out in critical temperature conditions.
- In a first aspect thereof, the invention concerns a method for controlling the charging of a rechargeable battery power supply unit for a bicycle electronic device, comprising the steps of detecting at least one temperature of the power supply unit, and supplying heat energy to the power supply unit when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
- In a second aspect thereof, the invention concerns a power supply system for a bicycle electronic device, comprising a rechargeable battery power supply unit, at least one sensor of a temperature of the power supply unit, at least one selectively activatable heating element, that can be thermally associated with the power supply unit, and a heating controller that receives in input the output of the at least one temperature sensor and actuates the heating element when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
- In another aspect thereof, the invention concerns a power supply device for a bicycle electronic device comprising a power supply unit comprising at least one rechargeable battery, a connector for a removable electrical power and data connection with a battery charger, at least one temperature sensor thermally coupled with the power supply unit, and at least one selectively activatable heating element, thermally coupled with the power supply unit, wherein the heating element is selectively actuated when the power supply device is connected to the battery charger and when the temperature detected by the sensor is lower than or equal to a lower temperature threshold within a closed charging temperature range, characteristic of the power supply unit.
- In another aspect thereof, the invention concerns a battery charger for a bicycle electronic device, comprising a connector for a removable electrical power and data connection with a power supply unit of the electronic device, an electrical circuit for receiving energy from an external energy source and for selectively supplying charging energy to the power supply unit, and a heating controller that receives in input a signal indicative of a detected temperature of the power supply unit and provides a signal for the actuation of a heating element of the power supply unit when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
- In another aspect thereof, the invention concerns a bicycle electronic device comprising a connector for a removable electrical power and data connection with a power supply unit, and a heating controller that receives in input a signal indicative of a detected temperature of the power supply unit and provides a signal for the actuation of a heating element of the power supply unit when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
- The invention shall now be better described with reference to some embodiments thereof, illustrated merely as a non-limiting example in the attached drawings, wherein:
-
FIG. 1 is a block diagram of a first embodiment of the system of the invention, connected to an external energy source; -
FIG. 2 is a block diagram of a second embodiment of the system of the invention, connected to an external energy source; -
FIG. 3 is a block diagram of a third embodiment of the system of the invention, connected to an external energy source; -
FIG. 4 is a block diagram of a fourth embodiment of the system of the invention, connected to an external energy source; -
FIG. 5 is a block diagram of a first embodiment of the method of the invention; -
FIG. 6 is a block diagram of a second embodiment of the method of the invention; -
FIG. 7 is a block diagram of a third embodiment of the method of the invention; -
FIG. 8 represents a regulation block ofFIG. 7 in greater detail; and -
FIGS. 9 and 10 show two preferred embodiments of power supply signals of a heater of the invention. - Introduction
- In a first aspect thereof, the invention concerns a method for controlling the charging of a rechargeable battery power supply unit for a bicycle electronic device, comprising the steps of
- detecting at least one temperature of the power supply unit, and
- supplying heat energy to the power supply unit when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
- In the present description and in the attached claims, the expression “closed temperature range” means a closed temperature range comprising the extreme values.
- Through heating, charging can also occur when the ambient temperature is lower than the lower limit of the characteristic closed charging temperature range.
- Preferably, the steps of providing an external energy source and supplying electrical energy to the power supply unit from the external energy source are further provided.
- Preferably, the step of supplying electrical energy only occurs when the detected temperature is within such a closed charging temperature range, in this way safeguarding the power supply unit from the risk of damage.
- When an external energy source is provided, the method can comprise, alternatively or additionally, supplying the heat energy to the power supply unit from the external source.
- Preferably, the lower temperature threshold is higher than the lower limit of the closed charging temperature range. The consequent overlapping margin between when the step of supplying electrical energy or charging step can occur, and the step of supplying heat energy or heating step ensures that the charging step is also carried out in case of inaccuracies in temperature detection. It should be noted that in this case, the heating step can be preliminary to the charging step and/or simultaneous with at least part of the charging step.
- The value of the lower temperature threshold is preferably experimentally selected to provide an adequate safety margin in case of inaccuracy in detection by the temperature sensor or between two temperature sensors, the first intended for controlling the heating step and the second intended for controlling the charging step. More preferably, the lower temperature threshold is higher by a few degrees, even more preferably by about 5° C. than the lower limit of the closed charging temperature range.
- In an embodiment, the step of supplying heat energy to the power supply unit is carried out until the detected temperature becomes higher than an upper temperature threshold. Through the provision of the double threshold it is possible to obtain a more continuative heating of the power supply unit, avoiding in particular a too high frequency of switching on and off the element intended for heating and the risk of instability of the system should the temperature of the power supply unit change quickly about the lower temperature threshold.
- Preferably, the upper temperature threshold is lower, more preferably lower by about 25° C., than the upper limit of the closed charging temperature range.
- The value of the upper temperature threshold is determined experimentally also considering the maximum power that can be supplied by the element intended for heating. Preferably, the upper temperature threshold is higher by a few degrees, more preferably by about 15° C., than the lower temperature threshold.
- In an embodiment, the step of supplying heat energy comprises supplying heat power as a function of a difference between the lower temperature threshold and the detected temperature, in this way implementing a closed loop feedback control.
- The function is preferably a function of the proportional, integrative, and/or derivative type.
- Preferably, the step of supplying heat energy is carried out by voltage- or current-supplying a heating element of the resistive type, thermally coupled with the battery power supply unit.
- In an embodiment, the step of detecting at least one temperature of the power supply unit comprises detecting a first temperature for controlling the execution of the step of supplying electrical energy and a second temperature for controlling the execution of the step of supplying heat energy. The use of two sensors is advantageous when the step of supplying electrical energy and the step of supplying heat energy are controlled by two physically distinct control units and each can autonomously manage its own sensor.
- In an embodiment, at least one of the steps of detecting a temperature, supplying heat energy and supplying electrical energy is carried out independently for each of a plurality of batteries of the battery power supply unit. In this way, it is possible to individually control the charging process and the final charging level in each battery, reducing the risk of damage of the power supply unit and extending its useful life.
- In an embodiment, the step of supplying energy provides a first temporal charging step at constant current and a second temporal charging step at constant voltage, in accordance with the teachings of the aforementioned known method.
- In a second aspect thereof, the invention concerns a power supply system for a bicycle electronic device, comprising
- a rechargeable battery power supply unit,
- at least one sensor of a temperature of the power supply unit,
- at least one selectively activatable heating element, that can be thermally associated with the power supply unit, and
- a heating controller that receives in input the output of the at least one temperature sensor and actuates the heating element when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
- Preferably, the system further comprises an electrical circuit for receiving energy from an external energy source and for selectively supplying electrical charging energy to the power supply unit.
- For the reasons outlined above, preferably the lower temperature threshold is higher, more preferably by about 5° C., than the lower limit of the closed charging temperature range.
- In an embodiment, the at least one heating element is deactivatable when the detected temperature is higher than an upper temperature threshold.
- Preferably, the upper temperature threshold is lower than the upper limit of the closed charging temperature range, and more preferably is about 15° C.
- In an embodiment, the power supply unit comprises at least two batteries and at least one heating element is thermally associated with each battery.
- Alternatively or additionally, the power supply unit comprises at least two batteries and at least one temperature sensor is thermally associated with each battery.
- For example, a temperature sensor and/or a heating element can be arranged between two adjacent batteries of the power supply unit. The detected temperature can thus be the average temperature or the minimum temperature of those of the various batteries making up the power supply unit, or the various embodiments of the method of the invention described above can be implemented with respect to the individual temperatures should a plurality of heating elements also be provided.
- Preferably, the system comprises a power regulator connected between a power supply line of the system and the heating element, driven by the heating controller to selectively actuate the at least one heating element. The power regulator can also simply be an ON/OFF switch. More preferably, the power regulator is selected from the group consisting of relays and solid-state devices, preferably MOSFET (metal-oxide-semiconductor field-effect transistor) and transistors.
- In an embodiment, the heating controller actuates the at least one heating element to supply heat power as a function of a difference between the lower temperature threshold and a temperature proportional to the detected temperature, thus implementing a closed loop feedback control. The function is preferably of the proportional, integrative, and/or derivative type.
- More specifically, the heating controller can comprise a multiplier of the output signal of the at least one temperature sensor, a subtractor for subtracting the output of the multiplier from the lower temperature threshold and for obtaining an error signal, and a P.I.D. (proportional-integral-derivative) type regulator block—in other words having a transfer function of the proportional, derivative, and/or integrative type—acting upon the error signal to output a driving signal for the power regulator, the driving of the power regulator regulating a voltage at the ends of the heating element or a current through the heating element.
- In an embodiment, the at least one heating element is of the resistive type and the P.I.D. regulator block causes a voltage value at the ends of the heating element or a current value flowing through it that increases as the error signal increases.
- In an embodiment, the at least one heating element is of the resistive type and the P.I.D. regulator block causes a modulated voltage at the ends of the heating element, or a modulated current through the heating element, the duty cycle of which increases as the error signal increases.
- Preferably, the heating element is of the resistive type, more preferably the heating element comprises at least one resistive sheet applied to at least one battery of the power supply unit, and even more preferably the at least one resistive sheet is interposed between two adjacent batteries of the power supply unit.
- Preferably, the at least one temperature sensor comprises a thermistor, more preferably a negative temperature coefficient (NTC) thermistor.
- Preferably, the system further comprises a charge controller that receives in input an output of the at least one temperature sensor and controls the electrical circuit to actuate the supply of electrical charging energy only when the detected temperature is within the closed charging temperature range.
- In an embodiment, the at least one temperature sensor comprises at least one first temperature sensor connected to the charge controller, and at least one second temperature sensor connected to the heating controller.
- Preferably, the electrical circuit comprises at least one charge circuit of the linear or switching type.
- The charge circuit can be controlled by the charge controller to carry out a first temporal charging step at constant current and a second temporal charging step at constant voltage.
- The charge controller and the heating controller can be embodied in a common microprocessor.
- Preferably, the system further comprises a power supply and regulator circuit that can be connected to the external energy source to provide a regulated power supply to the system.
- Preferably, the system further comprises at least one user interface device. In this way it is possible to set suitable values for the closed characteristic temperature range and/or for the lower temperature threshold and/or for the upper temperature threshold.
- The system can further comprise at least one electronic device for controlling an electronic gearshift and/or for acquiring, displaying, and controlling bicycle riding parameters and other functions.
- The components of the system can be housed in a single casing, which can be fixed to the bicycle frame.
- In other embodiments, the electrical charging circuit is housed in a first casing and the power supply unit is housed in a second casing, the first and the second casing being mechanically and electrically removably connectable. In this way it is possible to reduce the weight of the bicycle by detaching the first casing or battery charger from the second casing, comprising the power supply unit or battery pack and possibly the electronic device, during use of the bicycle.
- Preferably, the charge controller is housed in the first casing. By providing that the controller is part of the battery charger, the power supply device is lighter and more cost-effective, an advantageous aspect when two or more interchangeable removable power supply devices are provided.
- For similar reasons, preferably the interface device(s) is (are) housed in the first casing.
- Preferably, the at least one temperature sensor is housed in the second casing. Alternatively, the at least one temperature sensor can be housed in the first casing and come into thermal contact with the power supply unit when the first casing and the second casing are connected, namely during charging.
- Preferably, the at least one heating element is housed in the second casing. Alternatively, the at least one heating element can be housed in the first casing and come into thermal contact with the power supply unit when the first casing and the second casing are connected, namely during charging.
- The at least one electronic device can be housed in the second casing. Alternatively, the at least one electronic device can be housed in a third casing, the second casing being mechanically and electrically connectable to the third casing. In this way, the power supply unit or battery pack can be removed from the bicycle during charging, possibly being replaced by a twin battery pack to allow the prolonged operation of the electronic device.
- The heating controller can be housed in the first casing, in the second casing, or in the third casing.
- The power regulator can be housed in the first casing, in the second casing, or in the third casing.
- When the heating controller and the electronic device are housed in the same casing, the heating controller can comprise an electronic circuit mounted on a printed circuit of the electronic device, or it can be embodied in a microprocessor of the electronic device.
- In another aspect thereof, the invention concerns a power supply device for a bicycle electronic device comprising
- a power supply unit comprising at least one rechargeable battery,
- a connector for a removable electrical power and data connection with a battery charger,
- at least one temperature sensor thermally coupled with the power supply unit, and
- at least one selectively activatable heating element, thermally coupled with the power supply unit,
- wherein the heating element is selectively actuated when the power supply device is connected to the battery charger and when the temperature detected by the sensor is lower than or equal to a lower temperature threshold within a closed charging temperature range, characteristic of the power supply unit.
- The power supply device can further comprise a power regulator for the selective actuation of the heating element, the power regulator being controlled by the battery charger.
- Alternatively, the power supply device can further comprise a connector for a removable electrical power and data connection with an electronic device for controlling an electronic gearshift and/or for acquiring, displaying, and controlling bicycle riding parameters and other functions, and a power regulator for the selective actuation of the heating element, the power regulator being controlled by the electronic device.
- In another aspect thereof, the invention concerns a battery charger for a bicycle electronic device, comprising
- a connector for a removable electrical power and data connection with a power supply unit of the electronic device,
- an electrical circuit for receiving energy from an external energy source and for selectively supplying charging energy to the power supply unit, and
- a heating controller that receives in input a signal indicative of a detected temperature of the power supply unit and provides a signal for the actuation of a heating element of the power supply unit when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
- In another aspect thereof, the invention concerns a bicycle electronic device comprising
- a connector for a removable electrical power and data connection with a power supply unit, and
- a heating controller that receives in input a signal indicative of a detected temperature of the power supply unit and provides a signal for the actuation of a heating element of the power supply unit when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
- Detailed Description
- The block diagram of a first embodiment of the system of the invention is shown in
FIG. 1 . In this embodiment three functional blocks are identified, namely abattery charger 1, a rechargeablepower supply device 2, and a bicycleelectronic device 3, which in the most general embodiment of the system of the invention is a device external to the system itself. - The bicycle
electronic device 3 and the rechargeablepower supply device 2 can indeed be housed in separate casings, indicated hereafter with thesame reference numerals electronic device 3 and thepower supply device 2 can be housed inside asame casing 2 a. - The
battery charger 1 and thepower supply device 2 can be housed in separate casings as well, indicated hereafter with thesame reference numerals battery charger 1 and thepower supply device 2 can be housed inside asame casing 13. - Still alternatively, the
battery charger 1, thepower supply device 2 and the bicycleelectronic device 3 can be housed inside asame casing 14. - The
battery charger 1 is power supplied, in a per se known way, through connection to an external energy source P as, for example, a conventional electrical outlet at 220V or 110V, or a cigarette lighter of an automobile. Thebattery charger 1 supplies power to thepower supply device 2 through aline 18 and thepower supply device 2 supplies power to the bicycleelectronic device 3 through aline 22. It should also be understood that in addition to the connections shown there is also a ground connection, not shown for the sake of simplicity. - In
FIG. 1 , theelectrical power connections battery charger 1, thepower supply device 2, and the bicycleelectronic device 3 are illustrated as removable, made through two pairs of multipolar connectors CN1, CN2. It is understood that one or both pairs of connectors CN1, CN2 will be missing in case only one or two casings are provided. - The rechargeable
power supply device 2 comprises apower supply unit 4, aheating element 5, and atemperature sensor 6. In the practical embodiment, thepower supply unit 4 could consist of many battery elements, for example, connected in series, to obtain an adequate voltage for the power supply of the bicycleelectronic device 3. Thepower supply unit 4 is of the rechargeable type, for example, of the lithium-ion type with polymeric electrolyte. - The
heating element 5 preferably consists of a resistive sheet placed in contact with the outer surface of thepower supply unit 4. Thetemperature sensor 6 is arranged near to thepower supply unit 4, also preferably in contact with the outer surface of thepower supply unit 4, and it preferably consists of a passive element like an NTC (Negative Temperature Coefficient) thermistor. In different embodiments such a sensor could be of a different type, for example, a PTC (Positive Temperature Coefficient) thermistor, an active (analogue or digital) sensor, etc. - Alternatively, the
heating element 5 and/or thetemperature sensor 6 can be part of thebattery charger 1 and come into thermal contact with thepower supply unit 4 when connected to thebattery charger 1, namely during charging. - The
battery charger 1 comprises a first, charging control, logic unit orcharge controller 7, of the known type, and a second, heating control, logic unit orheating controller 8. The first and thesecond logic units - The first, charging control,
logic unit 7 comprises aninput 19 connected to thetemperature sensor 6 of thepower supply device 2, and is connected to acharge circuit 9, for example of the linear or switching type, of thebattery charger 1. If thepower supply unit 4 consists of many battery elements, it can be provided to use asmany charge circuits 9 suitably connectable to the battery elements, for example as described inEP 1 557 926 A1, which is incorporated herein by reference. - The second, heating control,
logic unit 8 comprises an input connected through adata line 20 to thetemperature sensor 6 of thepower supply device 2, and a drivingoutput 12 for aregulator 11 of the power of theheating element 5. Thepower regulator 11 can also be a simple ON/OFF switch. - The
power regulator 11 preferably consists of a MOSFET, but in different embodiments such a power regulator could, for example, consist of a transistor or a relay. - In other embodiments, moreover, it can be provided to use two dedicated temperature sensors, one for the first, charging control,
logic unit 7 and one for the second, heating control,logic unit 8. - The first and the
second logic units charge circuit 9 are power supplied by the external energy source P through thepower supply line 21 through the interposition of power supply/regulator circuits 23 of a know type. - The
power regulator 11 is connected on one side to thepower supply line 21 and on the other side to theheating element 5 through theline 25. - The
battery charger 1 can advantageously be provided with one ormore interface devices 10, for example, an input keyboard or keypad and a display. - The operation of the system of
FIG. 1 shall be described hereafter with reference toFIGS. 5-8 . - A second embodiment of the system according to the invention is illustrated in
FIG. 2 . The embodiment ofFIG. 2 differs from the embodiment ofFIG. 1 in that thepower regulator 11 is associated with theheating element 5 inside thepower supply device 2. In this case, therefore, thecontrol output 12 of thepower regulator 11 comes out from thebattery charger 1 and reaches thepower supply device 2, through the pair of multipolar connectors CN1 when provided for. - Such an embodiment can be particularly advantageous when the
power regulator 11 is of the solid state type, for example of the MOSFET type, since during its actuation and deactuation, it undergoes heating caused by switching losses. The heat energy produced by such losses is advantageously exploited to heat the battery 4 (in addition to the heating produced by theheating element 6, as further described hereafter). - A third embodiment of the system according to the invention is illustrated in
FIG. 3 . The embodiment ofFIG. 3 differs from the embodiment ofFIG. 1 in that the secondheating control unit 8 and thepower regulator 11 are housed in the casing of theelectronic device 3. In this case thepower supply line 21 comes out from thebattery charger 1 towards theelectronic device 3, through the pairs of multipolar connectors CN1 and CN2 when provided for, to power supply the second, heating control,logic unit 8. Thepower supply line 25 of theheater 5 and thedata line 20 between thetemperature sensor 6 and thetemperature controller 8 cross the pair of multipolar connectors CN2, when provided for. - In such an embodiment, moreover, the second
heating control unit 8 can consist of an electronic circuit mounted on the same printed circuit where the electronic circuits of theelectronic device 3 are arranged. - Alternatively, the
heating control unit 8 can belong to a microprocessor of theelectronic device 3, intended for other bicycle control functions, for example, the management of an automatic or semiautomatic gearshift. - A fourth embodiment of the system according to the invention is illustrated in
FIG. 4 . The embodiment ofFIG. 4 differs from the embodiment ofFIG. 3 in that thepower regulator 11 is associated with theheating element 5 inside the casing of thepower supply device 2. Thecontrol line 12 of theregulator 11 comes out from theelectronic device 3 towards thepower supply device 2 through the pair of multipolar connectors CN2, when provided for. - A first embodiment of the method according to the invention shall be described with reference to
FIG. 5 and to the system of one of the embodiments described above. - According to such a first embodiment of the method according to the invention different parameters are used, possibly settable by the user through the
interface devices 10 or through an interface device of theelectronic device 3 or computer cycle. - Such parameters comprise:
- T1=lower limit charging temperature, typically a value set based upon the value provided by the manufacturer for the type of battery
power supply unit 4 used; for example T1=0° C. for lithium-ion batteries with polymeric electrolyte; - T2=upper limit charging temperature, typically a value set based upon the value provided by the manufacturer for the type of battery
power supply unit 4 used; for example T2=40° C. for lithium-ion batteries with polymeric electrolyte; - Tlow=lower temperature threshold, a value selected upon experimental basis and based upon the type of battery
power supply unit 4 used; this lower temperature threshold is the temperature at which or above which one wishes to take or keep the temperature of thepower supply unit 4, and preferably it is selected a few degrees higher than the value of the lower limit charging temperature T1; for example Tlow=5° C. for lithium-ion batteries with polymeric electrolyte. - The parameter Tlow can be omitted when the value of the lower limit charging temperature T1 is used instead.
- The range of temperatures between T1 and T2 is indicated, in the present description and in the attached claims, as closed charging temperature range.
- The values of T1 and T2 are stored in the first, charging control,
logic unit 7, whereas the value of Tlow is stored in the second, heating control,logic unit 8. - When the charging of the
power supply unit 4 needs to be carried out, thebattery charger 1 is connected to the external energy source P and, if necessary, to thepower supply device 2 through the pair of connectors CN1. - The first, charging control,
logic unit 7 detects inblock 90 the temperature value T of thepower supply unit 4 through thesensor 6. If the detected value T falls within the closed charging temperature range, i.e., T1<=T<=T2, the first, charging control,logic unit 7, inblock 91, enables thecharge circuit 9 to carry out the charging of thepower supply unit 4. If the detected value T falls outside the closed charging temperature range, i.e., T<T1 or T>T2, the first, charging control,logic unit 7 remains in inactive state and does not enable thecharge circuit 9 or else disables thecharge circuit 9 in case it had previously been enabled. The way of charging by thecharge circuit 9 can be of any type, for example, as described in theaforementioned document EP 1 557 926 A1, wherein charging provides for a first charging step at constant current and a second charging step at constant voltage. - Concurrently with the described operation of the first, charging control,
logic unit 7, the second, heating control,logic unit 8 operates to carry out the “thermoregulation” of thepower supply unit 4 independently of the operation of the first, charging control,logic unit 7. - In
block 101, the heatingcontrol logic unit 8 detects the temperature value T of thepower supply unit 4 through thetemperature sensor 6. If the detected value T is lower than or equal to the lower limit temperature value Tlow, i.e., T<=Tlow, the heatingcontrol logic unit 8 inblock 102, through thecontrol output 12, actuates theheating element 5 driving thepower regulator 11, of the ON/OFF switch type, to the closed position. If, on the other hand, the detected value T is higher than the lower limit temperature value Tlow, i.e., T>Tlow, one proceeds to block 103 where the heatingcontrol logic unit 8, again through thecontrol output 12, deactuates theheating element 5 driving the power regulator or ON/OFF switch 11 to the open position. - The regulation cycle thus implemented is therefore a temperature control performed on a threshold Tlow.
- The values of T1, T2, and Tlow are suitably selected to allow the correct operation of the apparatus. In particular, correct operation requires that T1<=Tlow. In the case of use of a lithium-ion battery with polymeric electrolyte, the value of Tlow is advantageously selected a few degrees higher than the lower limit charging temperature T1, for example Tlow=5° C. In this way, the lower temperature threshold Tlow on which the temperature control is carried out is at a safety value that ensures the charging step by the first, charging control,
logic unit 7 taking possible inaccuracies in temperature detection by thesensor 6 into account, or of different readings, for whatever reason, by the twologic units - If, in the initial charging step, the temperature T of the
power supply unit 4 is lower than the lower limit temperature T1, theheating 102 consists of a preliminary operation with respect to the charging operation, which shall begin when the temperature of thepower supply unit 4 reaches the value T1. - On the other hand, if, in the initial charging step, the temperature T of the
power supply unit 4 is comprised between T1 and Tlow, in the case wherein T1>Tlow—for example T=3° C. in the case described above with T1=0° C. and Tlow=5° C.—the heating and charging steps shall begin simultaneously. - In a second embodiment of the method according to the invention, in addition to the parameters T1, T2, and Tlow mentioned above a fourth parameter is used:
- Thigh=upper temperature threshold, a value selected on an experimental basis and based upon the type of battery
power supply unit 4 used, as well as the power of theheater 5; this upper temperature threshold is the temperature at which or above which one wishes to interrupt the heating of thepower supply unit 4; preferably, the upper temperature threshold is selected higher by a few degrees, more preferably by about 15° C., than the lower temperature threshold and lower, more preferably lower by about 25° C., than the upper limit of the closed charging temperature range; for example Thigh=15° C. for lithium-ion batteries with polymeric electrolyte. - The value of Thigh is stored in the second, heating control,
logic unit 8. - With reference to
FIG. 6 , concurrently with the charging blocks 90, 91 described above, inblock 201 the heatingcontrol logic unit 8 detects the temperature value T of thepower supply unit 4 through thetemperature sensor 6. If the detected value T is lower than or equal to the lower limit temperature value Tlow, i.e., T<=Tlow, in ablock 202 the heatingcontrol logic unit 8, through the drivingoutput 12, actuates theheating element 5 closing thepower regulator 11, again of the ON/OFF switch type. If, on the other hand, the detected value T is higher than the lower limit temperature value Tlow, i.e., T>Tlow, one proceeds to block 203 where the detected temperature value T is compared with the upper temperature threshold Thigh. If the detected value T is higher than the upper temperature threshold Thigh, i.e., T>Thigh, inblock 204 the heatingcontrol logic unit 8 deactuates theheating element 5 opening thepower regulator 11 or ON/OFF switch. The regulation cycle thus implemented is therefore a temperature control performed on two thresholds Thigh and Tlow. - The temperature control performed on two thresholds Thigh and Tlow can be preferable with respect to the control with a single threshold Tlow since it allows the number of actuations and deactuations of the
power regulator 11 to be reduced with a reduction of the switching losses, especially when such a power regulator is a solid state power regulator (e.g., MOSFET). Moreover, this control performed on two thresholds, Thigh and Tlow, allows possible instability of the system to be avoided should the temperature T of thepower supply unit 4 quickly change about the temperature Tlow, which would involve continuous switching of thepower regulator 11 in case of control carried out on the lower temperature threshold Tlow only according toFIG. 5 . - In a third embodiment of the method according to the invention the parameters T1 and T2 mentioned above, limits of the charging temperature range, and the lower temperature threshold, indicated here with Tref, are used.
- With reference to
FIG. 7 , concurrently with the charging blocks 90, 91 described above, inblock 301 theheating control unit 8 detects the temperature value T of thepower supply unit 4 through thetemperature sensor 6. If the detected value T is higher than the lower temperature threshold or reference temperature Tref, theheating control unit 8 remains in inactive state, i.e., theheating element 5 is deactuated—block 302. If the detected value T is lower than or equal to the reference temperature Tref, theheating control unit 8 inblock 303, through the control output and theregulator 11, actuates theheating element 5 through a signal obtained with a closed loop feedback control system shown schematically inFIG. 8 . - The driving signal for the
heating element 5 is obtained as processing of an error signal suitably filtered by a P.I.D. regulator block. - More specifically, the temperature value T detected by the
temperature sensor 6 of thepower supply unit 4 is multiplied in amultiplier 26 by a gain value GAIN, which can also be unitary. The signal at the output of the multiplier, GAIN*T, is subtracted from the value Tref in asubtractor node 27. The output of thesubtractor node 27 is indicated as error signal ε=Tref−GAIN*T. - The error signal ε is sent to a P.I.D.
type regulator block 28, which has a transfer function of the proportional P, derivative D and/or integrative I type. - The output signal S(ε) of the
regulator block 28 is used to drive thepower regulator 11 so that the voltage V(t) at the ends of theheating element 5 or the current I(t) that is flowing in theheating element 5 has the desired progression to provide the desired heat power. - For example, the drive signal S(ε) can be a signal that causes a voltage value V(t) at the ends of the
heating element 5, when of the resistive type, which increases as the error signal ε increases, as illustrated in the diagram ofFIG. 9 . - As a further example, the drive signal S(ε) can be a signal that causes a voltage value V(t) at the ends of the
heating element 5, or a current value I(t) through theheating element 5, when of the resistive type, pulse width modulated (PWM signal), wherein the duty cycle of the modulated signal increases as the error signal ε increases, as illustrated inFIG. 10 . - In the various embodiments described above, in case the
power supply unit 4 comprises many batteries, a plurality oftemperature sensors 6 can be provided for, to detect the respective temperatures. The various embodiments of the method of the invention described above can, in this case, be implemented with respect to the individual temperatures should a plurality ofheating elements 5 also be provided, or else with respect to the average temperature or to the minimum temperature among those of the various batteries making up thepower supply unit 4. - Those skilled in the art shall understand that several changes, additions, eliminations, and replacements can be made to the embodiments described above without departing from the scope of protection of the invention defined by the attached claims.
Claims (68)
1. Method for controlling the charging of a rechargeable battery power supply unit for a bicycle electronic device, comprising the steps of:
detecting at least one temperature of the power supply unit; and
supplying heat energy to the power supply unit when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
2. Method according to claim 1 , further comprising the steps of providing an external energy source and supplying electrical energy to the power supply unit.
3. Method according to claim 2 , wherein the step of supplying electrical energy only occurs when the detected temperature is comprised within the closed charging temperature range.
4. Method according to claim 1 , further comprising the step of providing an external energy source and supplying the heat energy to the power supply unit from the external source.
5. Method according to claim 1 , wherein the lower temperature threshold is higher than the lower limit of the closed charging temperature range.
6. Method according to claim 5 , wherein the lower temperature threshold is higher by about 5° C. than the lower limit of the closed charging temperature range.
7. Method according to claim 1 , wherein the step of supplying heat energy to the power supply unit is carried out until the detected temperature becomes higher than an upper temperature threshold.
8. Method according to claim 7 , wherein the upper temperature threshold is lower than the upper limit of the closed charging temperature range.
9. Method according to claim 8 , wherein the upper temperature threshold is about 25° C. lower than the upper limit of the closed charging temperature range.
10. Method according to claim 7 , wherein the upper temperature threshold is about 15° C. higher than the lower limit of the closed charging temperature range.
11. Method according to claim 1 , wherein the step of supplying heat energy comprises providing heat power as a function of a difference between the lower temperature threshold and a temperature proportional to the detected temperature.
12. Method according to claim 1 , wherein the step of supplying heat energy is carried out by voltage- or current-supplying power to a heating element of the resistive type thermally coupled with the power supply unit.
13. Method according to claim 2 , wherein the step of detecting at least one temperature of the power supply unit comprises detecting a first temperature for controlling the execution of the step of supplying electrical energy and a second temperature for controlling the execution of the step of supplying heat energy.
14. Method according to claim 2 , wherein at least one of the steps of detecting a temperature, supplying heat energy, and supplying electrical energy is carried out independently for each of a plurality of batteries of the rechargeable battery power supply unit.
15. Power supply system for a bicycle electronic device, comprising:
a rechargeable battery power supply unit;
at least one sensor of a temperature of the power supply unit;
at least one selectively activatable heating element, that can be thermally associated with the power supply unit; and
a heating controller that receives in input the output of the at least one temperature sensor and actuates the heating element when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
16. System according to claim 15 , further comprising an electrical circuit for receiving energy from an external energy source and for selectively supplying charging energy to the power supply unit.
17. System according to claim 15 , wherein the power supply unit comprises at least two batteries, and at least one heating element is thermally associated with each battery.
18. System according to claim 15 , wherein the power supply unit comprises at least two batteries, and at least one temperature sensor is thermally associated with each battery.
19. System according to claim 15 , further comprising a power regulator connected between a power supply line of the system and the heating element, and driven by the heating controller to selectively actuate the at least one heating element.
20. System according to claim 19 , wherein the power regulator is selected from the group consisting of relays and solid-state element devices.
21. System according to 19, wherein the heating controller comprises a multiplier of an output signal of the at least one temperature sensor, a subtractor for subtracting the output of the multiplier from the lower temperature threshold and for obtaining an error signal, and a P.I.D. (proportional-integral-derivative) type regulator block acting upon the error signal to output a driving signal for the power regulator, the driving of the power regulator regulating a voltage at the ends of or a current through the heating element.
22. System according to claim 21 , wherein the at least one heating element is of the resistive type and the P.I.D. regulator block causes a voltage value at the ends of or a current through the heating element that increases as the error signal increases.
23. System according to claim 21 , wherein the at least one heating element is of the resistive type and the P.I.D. regulator block causes a modulated voltage at the ends of the heating element, or a modulated current through the heating element, the duty cycle of which increases as the error signal increases.
24. System according to claim 15 , wherein the heating element comprises at least one resistive sheet applied to at least one battery of the power supply unit.
25. System according to claim 15 , wherein the at least one temperature sensor comprises a thermistor.
26. System according to claim 16 , further comprising a charge controller that receives in input an output of the at least one temperature sensor and controls the electrical circuit to actuate the supply of electrical charging energy only when the detected temperature is within the closed charging temperature range.
27. System according to claim 26 , wherein the at least one temperature sensor comprises at least one first temperature sensor connected to the charge controller and at least one second temperature sensor connected to the heating controller.
28. System according to claim 16 , wherein the electrical circuit comprises at least one charge circuit of the linear or switching type.
29. System according to claim 28 , wherein the charge circuit is controlled by the charge controller for carrying out a first temporal charging step at constant current and a second temporal charging step at constant voltage.
30. System according to claim 26 , wherein the charge controller and the heating controller are embodied in a common microprocessor.
31. System according to claim 16 , further comprising a power supply and regulator circuit that can be connected to the external energy source to provide a regulated power supply to the system.
32. System according to claim 15 , further comprising at least one user interface device.
33. System according to claim 15 , further comprising at least one electronic device for controlling an electronic gearshift and/or for acquiring, displaying, and controlling bicycle riding parameters and other functions.
34. System according to claim 15 , wherein its components are housed in a single casing, fixed to a frame of the bicycle.
35. System according to claim 16 , wherein the electrical charging circuit is housed in a first casing and the power supply unit is housed in a second casing, the first casing and the second casing being mechanically and electrically removably connectable.
36. System according to claim 35 , further comprising a charge controller that receives in input an output of the at least one temperature sensor and controls the electrical circuit to actuate the supply of electrical charging energy only when the detected temperature is within the closed charging temperature range, wherein the charge controller is housed in the first casing.
37. System according to claim 35 , wherein at least one interface device is housed in the first casing.
38. System according to claim 35 , wherein the at least one temperature sensor is housed in the second casing.
39. System according to claim 35 , wherein the at least one heating element is housed in the second casing.
40. System according to claim 35 , wherein the heating controller is housed in the first casing.
41. System according to claim 35 , wherein the heating controller is housed in the second casing.
42. System according to claim 35 , further comprising at least one electronic device for controlling an electronic gearshift and/or for acquiring, displaying, and controlling bicycle riding parameters and other functions, wherein the at least one electronic device is housed in the second casing.
43. System according to claim 42 , wherein the heating controller is housed in the second casing and comprises an electronic circuit mounted on a printed circuit of the electronic device.
44. System according to claim 42 , wherein the heating controller is housed in the second casing and is embodied in a microprocessor of the electronic device.
45. System according to claim 35 , further comprising a power regulator connected between a power supply line of the system and the heating element, and driven by the heating controller to selectively actuate the at least one heating element, wherein the power regulator is housed in the first casing.
46. System according to claim 35 , further comprising a power regulator connected between a power supply line of the system and the heating element, and driven by the heating controller to selectively actuate the at least one heating element, wherein the power regulator is housed in the second casing.
47. System according to claim 35 , further comprising at least one electronic device for controlling an electronic gearshift and/or for acquiring, displaying, and controlling bicycle riding parameters and other functions, wherein the at least one electronic device is housed in a third casing, the second casing being mechanically and electrically connectable to the third casing.
48. System according to claim 47 , wherein the heating controller is housed in the third casing.
49. System according to claim 48 , wherein the heating controller comprises an electronic circuit mounted on a printed circuit of the electronic device.
50. System according to claim 49 , wherein the heating controller is embodied in a microprocessor of the electronic device.
51. System according to claim 47 , wherein the power regulator is housed in the third casing.
52. Power supply device for a bicycle electronic device comprising:
a power supply unit comprising at least one rechargeable battery;
a connector for a removable electrical power and data connection with a battery charger;
at least one temperature sensor thermally coupled with the power supply unit; and
at least one selectively activatable heating element, thermally coupled with the power supply unit,
wherein the heating element is selectively actuated when the power supply device is connected to the battery charger and when the temperature detected by the sensor is lower than or equal to a lower temperature threshold within a closed charging temperature range, characteristic of the power supply unit.
53. Power supply device according to claim 52 , further comprising a power regulator for the selective actuation of the heating element, the power regulator being controlled by the battery charger.
54. Power supply device according to claim 52 , further comprising a connector for a removable electrical power and data connection with an electronic device for controlling an electronic gearshift and/or for acquiring, displaying, and controlling bicycle riding parameters and other functions, and a power regulator for the selective actuation of the heating element, the power regulator being controlled by the electronic device.
55. Battery charger for a bicycle electronic device, comprising:
a connector for a removable electrical power and data connection with a power supply unit of the electronic device;
an electrical circuit for receiving energy from an external energy source and for selectively supplying charging energy to the power supply unit; and
a heating controller that receives in input a signal indicative of a detected temperature of the power supply unit and provides a signal for actuating a heating element of the power supply unit when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
56. Bicycle electronic device, comprising:
a connector for a removable electrical power and data connection with a power supply unit; and
a heating controller that receives in input a signal indicative of a detected temperature of the power supply unit and provides a signal for actuating a heating element of the power supply unit when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit.
57. A method for controlling the charging of a rechargeable battery power supply unit having a closed charging temperature range, the method comprising the steps of:
detecting at least one temperature of the power supply unit; and
supplying heat energy to the power supply unit when the detected temperature is lower than or equal to a lower temperature threshold within the closed charging temperature range and until the detected temperature becomes higher than an upper temperature threshold.
58. The method according to claim 57 , wherein the upper temperature threshold is lower than an upper limit of the closed charging temperature range.
59. The method according to claim 58 , wherein the upper temperature threshold is about 25° C. lower than the upper limit of the closed charging temperature range.
60. The method according to claim 57 , wherein the upper temperature threshold is about 15° C. higher than a lower limit of the closed charging temperature range.
61. The method according to claim 57 , wherein the method is for use with a bicycle electronic device.
62. A power supply system for a bicycle electronic device, comprising:
a rechargeable battery power supply unit having a closed charging temperature range;
at least one sensor of a temperature of the power supply unit;
at least one selectively activatable heating element, that can be thermally associated with the power supply unit;
a heating controller that receives in input the output of the at least one temperature sensor and actuates the heating element when the detected temperature is lower than or equal to a lower temperature threshold within the closed charging temperature range;
an electrical circuit for receiving energy from an external energy source and for selectively supplying charging energy to the power supply unit;
a first casing housing the electrical charging circuit;
a second casing housing the power supply unit, the first casing and the second casing being mechanically and electrically removably connectable; and
a third casing housing the at least one electronic device, the second casing being mechanically and electrically connectable to the third casing.
63. The system according to claim 62 , wherein the heating controller is housed in the third casing.
64. The system according to claim 63 , wherein the heating controller comprises an electronic circuit mounted on a printed circuit of the electronic device.
65. The system according to claim 63 , wherein the heating controller is embodied in a microprocessor of the electronic device.
66. The system according to claim 62 , wherein a power regulator is housed in the third casing.
67. Power supply system for a bicycle electronic device, comprising:
a rechargeable battery power supply unit;
at least one sensor of a temperature of the power supply unit;
at least one selectively activatable heating element, that can be thermally associated with the power supply unit;
a heating controller that receives in input the output of the at least one temperature sensor and actuates the heating element when the detected temperature is lower than or equal to a lower temperature threshold within a closed charging temperature range characteristic of the power supply unit;
at least one electronic device for controlling an electronic gearshift and/or for acquiring, displaying, and controlling bicycle riding parameters and other functions;
a power regulator connected between a power supply line of the system and the heating element, and driven by the heating controller to selectively actuate the at least one heating element,
an electrical circuit for receiving energy from an external energy source and for selectively supplying charging energy to the power supply unit;
wherein the electrical charging circuit is housed in a first casing, and
wherein the power supply unit, the at least one temperature sensor, the at least one heating element, the heating controller, the at least one electronic device and the power regulator are housed in a second casing,
the first casing and the second casing being mechanically and electrically removably connectable.
68. A bicycle electronic apparatus, comprising:
a power supply unit comprising at least one rechargeable battery;
a connector for a removable electrical power and data connection with a battery charger;
at least one temperature sensor thermally coupled with the power supply unit;
at least one selectively activatable heating element, thermally coupled with the power supply unit;
a heating controller that receives in input the output of the at least one temperature sensor and actuates the heating element;
at least one electronic device for controlling an electronic gearshift and/or for acquiring, displaying, and controlling bicycle riding parameters and other functions;
a power regulator connected between a power supply line of the apparatus and the heating element, and driven by the heating controller to selectively actuate the at least one heating element,
wherein the heating element is selectively actuated when the apparatus is connected to the battery charger and when the temperature detected by the sensor is lower than or equal to a lower temperature threshold within a closed charging temperature range, characteristic of the power supply unit.
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US14/980,569 US9469202B2 (en) | 2006-07-04 | 2015-12-28 | Method for controlling and system for charging a battery power supply unit |
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IT001296A ITMI20061296A1 (en) | 2006-07-04 | 2006-07-04 | METHOD OF CONTROL AND SYSTEM OF CHARGING A BATTERY POWER UNIT |
ITMI2006A001296 | 2006-07-04 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN106207295A (en) * | 2016-08-19 | 2016-12-07 | 北汽福田汽车股份有限公司 | Charging method, battery system and vehicle for battery system |
JP6775117B2 (en) * | 2016-10-26 | 2020-10-28 | パナソニックIpマネジメント株式会社 | Power storage device |
CN106787043B (en) * | 2016-12-21 | 2019-02-01 | 北京新能源汽车股份有限公司 | The control method and device of temperature protective device, charging gun, Vehicular charger |
EP3566259B1 (en) | 2017-01-09 | 2023-03-08 | Milwaukee Electric Tool Corporation | Battery pack |
CN110077281B (en) * | 2019-04-30 | 2020-12-15 | 浙江吉利控股集团有限公司 | Charging and heating method and system for power battery of plug-in hybrid electric vehicle |
Citations (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2516048A (en) * | 1946-02-27 | 1950-07-18 | Willard Storage Battery Co | Heated battery |
US5339018A (en) * | 1989-06-30 | 1994-08-16 | Analog Devices, Inc. | Integrated circuit monitor for storage battery voltage and temperature |
US5599636A (en) * | 1991-12-21 | 1997-02-04 | Braun; Dieter | Device for improving the current output of a chargeable battery at low outside temperature |
US5710507A (en) * | 1996-04-26 | 1998-01-20 | Lucent Technologies Inc. | Temperature-controlled battery reserve system and method of operation thereof |
US5795664A (en) * | 1995-12-05 | 1998-08-18 | Norand Corporation | Rechargeable battery system having intelligent temperature control |
US5834131A (en) * | 1997-05-02 | 1998-11-10 | Itt Manufacturing Enterprises, Inc. | Self warming low cost tactical electronics battery |
US6002240A (en) * | 1997-12-12 | 1999-12-14 | Dell Usa, L.P. | Self heating of batteries at low temperatures |
US6181103B1 (en) * | 1997-05-27 | 2001-01-30 | Shu-Chin Chen | Advanced intelligent computer power management system |
US6188202B1 (en) * | 1998-06-29 | 2001-02-13 | Honda Giken Kogyo Kabushiki Kaisha | Battery charging device |
US6246600B1 (en) * | 2000-07-28 | 2001-06-12 | Motorola, Inc. | Multi-use battery |
US6271648B1 (en) * | 2000-09-27 | 2001-08-07 | Ford Global Tech., Inc. | Method of preconditioning a battery to improve cold temperature starting of a vehicle |
US6275008B1 (en) * | 1999-07-02 | 2001-08-14 | Yazaki Corporation | Battery capacity detection system with temperature correction |
US20020070710A1 (en) * | 2000-10-12 | 2002-06-13 | Honda Giken Kogyo Kabushiki Kaisha | Battery charging control method employing pulsed charging and discharging operation for heating low-temperature battery |
US6440602B1 (en) * | 1999-02-08 | 2002-08-27 | Nec Corporation | Battery pack |
US6451041B1 (en) * | 1996-02-29 | 2002-09-17 | Stephen P. Moenning | Apparatus for protecting a port site opening in the wall of a body cavity and reducing electrosurgical injuries |
US6456041B1 (en) * | 1998-12-28 | 2002-09-24 | Yamaha Hatsudoki Kanushiki Kaisha | Power supply system for electric vehicle |
US6483272B1 (en) * | 1998-10-15 | 2002-11-19 | Yamaha Hatsudoki Kabushiki Kaisha | Power system for electric vehicle |
US6545449B2 (en) * | 2001-04-10 | 2003-04-08 | Matsushita Electric Industrial Co., Ltd. | Method for controlling charge to secondary battery for automated guided vehicle |
US20030080713A1 (en) * | 2001-10-30 | 2003-05-01 | Kirmuss Charles Bruno | Pre-heating a mobile electronic device |
US6624615B1 (en) * | 2002-08-23 | 2003-09-23 | Hyundai Motor Company | Battery temperature management method of an electric vehicle |
US20030186111A1 (en) * | 2002-03-28 | 2003-10-02 | Ngk Insulators, Ltd. | Control system for sodium-sulfur battery |
US6725713B2 (en) * | 2002-05-10 | 2004-04-27 | Michelin & Recherche Et Technique S.A. | System for generating electric power from a rotating tire's mechanical energy using reinforced piezoelectric materials |
US6861824B1 (en) * | 2002-07-10 | 2005-03-01 | Arquesttechnology, Inc. | Charger system with dual-level current regulation and dual-level thermal regulation |
US6917283B2 (en) * | 2002-07-24 | 2005-07-12 | Shimano, Inc. | Bicycle computer control arrangement and method |
US20050274705A1 (en) * | 2004-05-26 | 2005-12-15 | Ford Global Technologies, Llc | Method and system for a vehicle battery temperature control |
US20060012342A1 (en) * | 2002-07-17 | 2006-01-19 | Mathews Associates, Inc. | Self-heating battery that automatically adjusts its heat setting |
US20060028182A1 (en) * | 2004-07-23 | 2006-02-09 | Jihui Yang | Thermoelectric methods to control temperature of batteries |
US7189942B2 (en) * | 2004-03-31 | 2007-03-13 | Sanyo Electric Co., Ltd. | Car power source apparatus |
US20080124616A1 (en) * | 2006-07-04 | 2008-05-29 | Campagnolo S.R.L. | Method and System for Supplying Electrical Energy from a Battery Power Supply Unit |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3895283A (en) | 1973-11-26 | 1975-07-15 | Vapor Corp | Temperature responsive battery charging circuit |
DE3617439A1 (en) * | 1985-11-14 | 1987-11-26 | Messerschmitt Boelkow Blohm | Method and arrangement for defrosting a solar cell panel on a motor vehicle |
DE4017475A1 (en) * | 1990-05-31 | 1991-12-05 | Standard Elektrik Lorenz Ag | Electric battery with stabilised operating temp. - uses thermo-switch for on=off switching of associated electrical heating system |
DE4216045A1 (en) | 1992-05-15 | 1993-11-18 | Bosch Gmbh Robert | Multiple charger |
JP3567473B2 (en) * | 1993-09-24 | 2004-09-22 | カシオ計算機株式会社 | Charging device and traveling vehicle computer |
TW259901B (en) | 1994-10-26 | 1995-10-11 | Ind Tech Res Inst | Charging method and device thereof |
JP3414004B2 (en) * | 1994-11-22 | 2003-06-09 | 日産自動車株式会社 | Electric vehicle battery temperature controller |
TW314668B (en) | 1996-01-31 | 1997-09-01 | Tay-Her Yang | Engine-driven auxiliary battery charger system with automatic monitoring function |
JPH10201124A (en) * | 1997-01-09 | 1998-07-31 | Takashi Toyomura | Charging system of power storing means |
JPH10284133A (en) * | 1997-04-08 | 1998-10-23 | Sony Corp | Battery pack and its charging method |
JPH1155869A (en) * | 1997-07-29 | 1999-02-26 | Matsushita Electric Ind Co Ltd | Automatic temperature regulation battery charger |
JP3765913B2 (en) | 1997-09-15 | 2006-04-12 | 本田技研工業株式会社 | Battery rental equipment |
CA2225585A1 (en) | 1997-12-12 | 1999-06-12 | Hydro-Quebec | Battery control system |
JP3936179B2 (en) | 2001-11-30 | 2007-06-27 | パナソニック・イーブイ・エナジー株式会社 | Battery power supply device and current detection method thereof |
US20050007406A1 (en) * | 2001-04-19 | 2005-01-13 | Haas William S. | Controllable thermal warming devices |
JP3772765B2 (en) | 2001-05-11 | 2006-05-10 | トヨタ自動車株式会社 | Refresh charge control device |
JP2003168491A (en) * | 2001-11-29 | 2003-06-13 | Fuji Photo Film Co Ltd | Secondary battery unit, temperature control equipment for secondary battery, charging equipment, charging program, and charging method |
JP4020650B2 (en) | 2002-01-30 | 2007-12-12 | 三洋電機株式会社 | Battery device for vehicle |
US7096727B2 (en) | 2002-05-10 | 2006-08-29 | Michelin Recherche Et Technique S.A. | System and method for generating electric power from a rotating tire's mechanical energy |
US7327122B2 (en) | 2002-07-17 | 2008-02-05 | Mathews Associates, Inc. | Battery heating circuit |
EP1384659B1 (en) * | 2002-07-24 | 2009-12-23 | Shimano Inc. | Bicycle computer control arrangement and method |
JP2004362949A (en) * | 2003-06-05 | 2004-12-24 | Sony Corp | Battery device, battery heating method, and electric hybrid bicycle |
JP4263052B2 (en) * | 2003-08-01 | 2009-05-13 | 日産ディーゼル工業株式会社 | Temperature control device for electric double layer capacitor |
JP4072476B2 (en) * | 2003-08-01 | 2008-04-09 | 日産ディーゼル工業株式会社 | Power storage device |
ATE538525T1 (en) * | 2004-01-20 | 2012-01-15 | Campagnolo Srl | RECHARGEABLE POWER SUPPLY UNIT FOR A BICYCLE |
JP2006127920A (en) | 2004-10-29 | 2006-05-18 | Sanyo Electric Co Ltd | Power supply device |
JP4768273B2 (en) * | 2005-01-12 | 2011-09-07 | Necエナジーデバイス株式会社 | Battery pack |
CN100372169C (en) | 2005-10-17 | 2008-02-27 | 李慧琪 | Thermal balance treating method and device for lithium ion power battery group |
ITMI20061296A1 (en) | 2006-07-04 | 2008-01-05 | Campagnolo Srl | METHOD OF CONTROL AND SYSTEM OF CHARGING A BATTERY POWER UNIT |
US10279684B2 (en) * | 2008-12-08 | 2019-05-07 | Ford Global Technologies, Llc | System and method for controlling heating in a hybrid vehicle using a power source external to the hybrid vehicle |
-
2006
- 2006-07-04 IT IT001296A patent/ITMI20061296A1/en unknown
-
2007
- 2007-06-21 EP EP07012164A patent/EP1876510A3/en not_active Withdrawn
- 2007-06-26 JP JP2007167835A patent/JP2008061490A/en active Pending
- 2007-07-02 US US11/772,712 patent/US20080042621A1/en not_active Abandoned
- 2007-07-04 CN CN2007101271509A patent/CN101102054B/en not_active Expired - Fee Related
- 2007-07-04 TW TW096124365A patent/TWI441370B/en not_active IP Right Cessation
-
2015
- 2015-12-28 US US14/980,569 patent/US9469202B2/en active Active
Patent Citations (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2516048A (en) * | 1946-02-27 | 1950-07-18 | Willard Storage Battery Co | Heated battery |
US5339018A (en) * | 1989-06-30 | 1994-08-16 | Analog Devices, Inc. | Integrated circuit monitor for storage battery voltage and temperature |
US5599636A (en) * | 1991-12-21 | 1997-02-04 | Braun; Dieter | Device for improving the current output of a chargeable battery at low outside temperature |
US5795664A (en) * | 1995-12-05 | 1998-08-18 | Norand Corporation | Rechargeable battery system having intelligent temperature control |
US6451041B1 (en) * | 1996-02-29 | 2002-09-17 | Stephen P. Moenning | Apparatus for protecting a port site opening in the wall of a body cavity and reducing electrosurgical injuries |
US5710507A (en) * | 1996-04-26 | 1998-01-20 | Lucent Technologies Inc. | Temperature-controlled battery reserve system and method of operation thereof |
US5834131A (en) * | 1997-05-02 | 1998-11-10 | Itt Manufacturing Enterprises, Inc. | Self warming low cost tactical electronics battery |
US6181103B1 (en) * | 1997-05-27 | 2001-01-30 | Shu-Chin Chen | Advanced intelligent computer power management system |
US6002240A (en) * | 1997-12-12 | 1999-12-14 | Dell Usa, L.P. | Self heating of batteries at low temperatures |
US6188202B1 (en) * | 1998-06-29 | 2001-02-13 | Honda Giken Kogyo Kabushiki Kaisha | Battery charging device |
US6483272B1 (en) * | 1998-10-15 | 2002-11-19 | Yamaha Hatsudoki Kabushiki Kaisha | Power system for electric vehicle |
US6456041B1 (en) * | 1998-12-28 | 2002-09-24 | Yamaha Hatsudoki Kanushiki Kaisha | Power supply system for electric vehicle |
US6440602B1 (en) * | 1999-02-08 | 2002-08-27 | Nec Corporation | Battery pack |
US6275008B1 (en) * | 1999-07-02 | 2001-08-14 | Yazaki Corporation | Battery capacity detection system with temperature correction |
US6246600B1 (en) * | 2000-07-28 | 2001-06-12 | Motorola, Inc. | Multi-use battery |
US6271648B1 (en) * | 2000-09-27 | 2001-08-07 | Ford Global Tech., Inc. | Method of preconditioning a battery to improve cold temperature starting of a vehicle |
US20020070710A1 (en) * | 2000-10-12 | 2002-06-13 | Honda Giken Kogyo Kabushiki Kaisha | Battery charging control method employing pulsed charging and discharging operation for heating low-temperature battery |
US6545449B2 (en) * | 2001-04-10 | 2003-04-08 | Matsushita Electric Industrial Co., Ltd. | Method for controlling charge to secondary battery for automated guided vehicle |
US20030080713A1 (en) * | 2001-10-30 | 2003-05-01 | Kirmuss Charles Bruno | Pre-heating a mobile electronic device |
US20030186111A1 (en) * | 2002-03-28 | 2003-10-02 | Ngk Insulators, Ltd. | Control system for sodium-sulfur battery |
US6725713B2 (en) * | 2002-05-10 | 2004-04-27 | Michelin & Recherche Et Technique S.A. | System for generating electric power from a rotating tire's mechanical energy using reinforced piezoelectric materials |
US6861824B1 (en) * | 2002-07-10 | 2005-03-01 | Arquesttechnology, Inc. | Charger system with dual-level current regulation and dual-level thermal regulation |
US20060012342A1 (en) * | 2002-07-17 | 2006-01-19 | Mathews Associates, Inc. | Self-heating battery that automatically adjusts its heat setting |
US6917283B2 (en) * | 2002-07-24 | 2005-07-12 | Shimano, Inc. | Bicycle computer control arrangement and method |
US6624615B1 (en) * | 2002-08-23 | 2003-09-23 | Hyundai Motor Company | Battery temperature management method of an electric vehicle |
US7189942B2 (en) * | 2004-03-31 | 2007-03-13 | Sanyo Electric Co., Ltd. | Car power source apparatus |
US20050274705A1 (en) * | 2004-05-26 | 2005-12-15 | Ford Global Technologies, Llc | Method and system for a vehicle battery temperature control |
US20060028182A1 (en) * | 2004-07-23 | 2006-02-09 | Jihui Yang | Thermoelectric methods to control temperature of batteries |
US20080124616A1 (en) * | 2006-07-04 | 2008-05-29 | Campagnolo S.R.L. | Method and System for Supplying Electrical Energy from a Battery Power Supply Unit |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9634518B2 (en) * | 2006-07-04 | 2017-04-25 | Campagnolo S.R.L. | Method and system for supplying electrical energy from a battery power supply unit to a heating element |
US20080124616A1 (en) * | 2006-07-04 | 2008-05-29 | Campagnolo S.R.L. | Method and System for Supplying Electrical Energy from a Battery Power Supply Unit |
US9469202B2 (en) | 2006-07-04 | 2016-10-18 | Campagnolo S.R.L. | Method for controlling and system for charging a battery power supply unit |
US8134462B1 (en) * | 2008-08-08 | 2012-03-13 | The United States Of America As Represented By The Secretary Of The Navy | Self-contained sensor package for water security and safety |
US20100220827A1 (en) * | 2009-03-02 | 2010-09-02 | Olympus Corporation | Data communication system and receiving device |
US8744028B2 (en) * | 2009-03-02 | 2014-06-03 | Olympus Corporation | Data communication system and receiving device |
US20120235631A1 (en) * | 2009-12-04 | 2012-09-20 | Sanyo Electric Co., Ltd. | Storage Unit, Power Generation System, and Charge/Discharge System |
US9431688B2 (en) * | 2010-05-21 | 2016-08-30 | GM Global Technology Operations LLC | Method for heating a high voltage vehicle battery |
US20110288704A1 (en) * | 2010-05-21 | 2011-11-24 | GM Global Technology Operations LLC | Method for heating a high voltage vehicle battery |
US20150214777A1 (en) * | 2010-10-15 | 2015-07-30 | Nextek Power Systems Inc. | Arrangement for and method of dynamically managing electrical power between an electrical power source and an electrical load |
US10050442B2 (en) * | 2010-10-15 | 2018-08-14 | Nextek Power Systems, Inc. | Arrangement for and method of dynamically managing electrical power between an electrical power source and an electrical load |
US11563244B2 (en) | 2012-06-27 | 2023-01-24 | Semiconductor Energy Laboratory Co., Ltd. | Power storage unit and solar power generation unit |
US10978757B2 (en) * | 2012-06-27 | 2021-04-13 | Semiconductor Energy Laboratory Co., Ltd. | Power storage unit and solar power generation unit |
US10202168B2 (en) * | 2013-11-15 | 2019-02-12 | Campagnolo S.R.L. | Bicycle electronic system |
US20150137591A1 (en) * | 2013-11-15 | 2015-05-21 | Campagnolo S.R.L. | Bicycle electronic system |
US20170229888A1 (en) * | 2014-03-14 | 2017-08-10 | Kimree Hi-Tech Inc. | Electronic Cigarette Charger |
US9973012B2 (en) * | 2014-03-14 | 2018-05-15 | Huizhou Kimree Technology Co., Ltd. Shenzhen Branch | Electronic cigarette charger |
US10826309B2 (en) | 2014-09-01 | 2020-11-03 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal, heating apparatus and charging method for battery |
US9917448B2 (en) | 2014-10-03 | 2018-03-13 | Elitise Llc | Battery module architecture with horizontal and vertical expandability |
WO2016053385A1 (en) * | 2014-10-03 | 2016-04-07 | Elitise Llc | Battery module architecture with horizontal and vertical expandability |
US9515497B2 (en) | 2014-10-03 | 2016-12-06 | Elitise Llc | Battery module architecture with horizontal and vertical expandability |
DE102015102345A1 (en) | 2015-02-19 | 2016-08-25 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for charging a rechargeable battery |
US10377251B2 (en) * | 2015-03-26 | 2019-08-13 | Proterra Inc. | Electric vehicle charging interface |
US20170054187A1 (en) * | 2015-08-18 | 2017-02-23 | Emerson Network Power, Energy Systems, North America, Inc. | Battery heater controllers and infrastructure cabinets including battery heater controllers |
US11139665B2 (en) * | 2017-01-13 | 2021-10-05 | Hand Held Products, Inc. | Power capacity indicator |
US20190030983A1 (en) * | 2017-07-28 | 2019-01-31 | Tesla,Inc. | Charging system with thermal protection |
US11225156B2 (en) * | 2017-07-28 | 2022-01-18 | Tesla, Inc. | Charging system with thermal protection |
US11493967B2 (en) * | 2018-06-01 | 2022-11-08 | Interdigital Madison Patent Holdings, Sas | Thermal shutdown with hysteresis |
US20190369683A1 (en) * | 2018-06-01 | 2019-12-05 | Thomson Licensing | Thermal shutdown with hysteresis |
US11919421B2 (en) | 2019-10-10 | 2024-03-05 | Lg Energy Solution, Ltd. | Heating pad control apparatus |
EP4170854A4 (en) * | 2020-06-23 | 2024-02-21 | Vivo Mobile Communication Co Ltd | Electronic device, and charging method and apparatus |
Also Published As
Publication number | Publication date |
---|---|
ITMI20061296A1 (en) | 2008-01-05 |
EP1876510A2 (en) | 2008-01-09 |
EP1876510A3 (en) | 2011-07-27 |
JP2008061490A (en) | 2008-03-13 |
US20160185234A1 (en) | 2016-06-30 |
CN101102054B (en) | 2012-09-05 |
TWI441370B (en) | 2014-06-11 |
TW200824168A (en) | 2008-06-01 |
CN101102054A (en) | 2008-01-09 |
US9469202B2 (en) | 2016-10-18 |
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