CA2541839A1 - Method and apparatus for charging batteries in a system of batteries - Google Patents
Method and apparatus for charging batteries in a system of batteries Download PDFInfo
- Publication number
- CA2541839A1 CA2541839A1 CA002541839A CA2541839A CA2541839A1 CA 2541839 A1 CA2541839 A1 CA 2541839A1 CA 002541839 A CA002541839 A CA 002541839A CA 2541839 A CA2541839 A CA 2541839A CA 2541839 A1 CA2541839 A1 CA 2541839A1
- Authority
- CA
- Canada
- Prior art keywords
- battery
- charge
- state
- power supply
- period
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
-
- 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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
- H02J7/00041—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors in response to measured battery parameters, e.g. voltage, current or temperature profile
-
- 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
- H02J7/00047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with provisions for charging different types of batteries
Abstract
A method and apparatus for charging batteries in a system of batteries. The method and apparatus involve producing a set of state of charge signals indicative of the states of charge of each battery in the system, successively identifying, from the state of charge signals, a most discharged battery in the system and applying a charging current to the most discharged battery for at least part of a first period of time less than a period of time required to fully charge the most discharged battery before identifying a succeeding most discharged battery in said system. The batteries are charged according to a dynamic charging sequence in which batteries are added into the charging sequence in order of increasing state of charge as batteries already in the charging sequence are charged to exceed the state of charge of a battery having the next higher state of charge relative to the state of charge of the batteries already in the charging sequence.
Claims (78)
1. A method of charging batteries in a system of batteries, the method comprising:
producing a set of state of charge signals indicative of the states of charge of each battery in said system;
successively identifying, from the state of charge signals, a most discharged battery in said system; and applying a charging current to said most discharged battery for a at least part of a first period of time less than a period of time required to fully charge said most discharged battery before identifying a succeeding most discharged battery in said system.
producing a set of state of charge signals indicative of the states of charge of each battery in said system;
successively identifying, from the state of charge signals, a most discharged battery in said system; and applying a charging current to said most discharged battery for a at least part of a first period of time less than a period of time required to fully charge said most discharged battery before identifying a succeeding most discharged battery in said system.
2. The method of claim 1 wherein producing said set of state of charge signals comprises measuring voltages of the batteries in the system.
3. The method of claim 2 further comprising isolating a power supply from a battery while said voltage of said battery is being measured.
4. The method of claim 3 wherein isolating said power supply comprises providing a signal to a controllable power supply to de-energize said controllable power supply.
5. The method of claim 4 wherein producing said set of state of charge signals comprises successively connecting said power supply bus to each battery in said system and storing voltage measurements of the batteries as said set of state of charge signals.
6. The method of claim 5 wherein identifying comprises determining which battery of said system is associated with a lowest voltage measurement and associating with said battery associated with said lowest voltage measurement an identifier identifying it as said most discharged battery.
7. The method of claim 1 wherein said first period of time is such that at least a current state of charge of said most discharged battery is maintained over time.
8. The method of claim 1 wherein said first period of time is such that at least a current state of charge of said most discharged battery is increased over time.
9. The method of claim 1 wherein said first period of time is long enough to avoid interference in a load connected to said most discharged battery.
10. The method of claim 1 wherein said first period of time is between about 1 and about 30 seconds.
11. The method of claim 1 further comprising selecting said first period of time in response to a chemical type of said most discharged battery.
12. The method of claim 1 further comprising receiving user input defining said first period of time.
13. The method of claim 12 further comprising storing said user input as stored user input.
14. The method of claim 13 further comprising recalling said stored user input to determine said first period of time.
15. The method of claim 1 wherein applying said charging current to said most discharged battery comprises connecting a power supply to said most discharged battery for said first period of time.
16. The method of claim 15 further comprising controlling said power supply to produce said charging current according to. a charge profile associated with said most discharged battery.
17. The method of claim 15 wherein applying said charging current comprises activating a first timer for said first period of time, said power supply being connected to said most discharged battery while said first timer is activated.
18. The method of claim 17 further comprising disconnecting said most discharged battery from said power supply during said first period of time if said charge current meets a first criterion during said first period of time.
19. The method of claim 18 wherein said charge current meets said first criterion when said charge current is less than a threshold value after a minimum period of time within said first period of time.
20. The method of claim 19 wherein said minimum period of time is long enough to avoid interference in a load connected to said most discharged battery.
21. The method of claim 19 wherein said minimum period of time is greater than about 1 second.
22. The method of claim 21 wherein said minimum period of time is less than about 5 seconds.
23. The method of claim 22 wherein said first period of time is between about 1 second and about 30 seconds.
24. The method of claim 15 wherein connecting said power supply to said most discharged battery comprises causing a current distributor to connect said most discharged battery to at least one pole of said power supply.
25. The method of claim 24 wherein causing said current distributor to connect said most discharged battery to at least one pole of said power supply comprises activating a switching circuit connected between said at least one pole of said power supply and said most discharged battery.
26. The method of claim 25 wherein activating a switching circuit comprises turning on a semiconductor switch connected between said at least one pole of said power supply and said most discharged battery.
27. The method of claim 15 wherein connecting said power supply to said most discharged battery comprises causing a current distributor to connect said most discharged battery to respective poles of said power supply.
28. The method of claim 27 wherein connecting said power supply to said most discharged battery comprises activating first and second switching circuits connected to respective poles of said power supply and to respective poles of said most discharged battery.
29. The method of claim 28 wherein activating said first and second switching circuits comprises turning on first and second semiconductor switches associated with said first and second switching circuits respectively where said first semiconductor switch is connected between a first pole of said power supply and a first pole of said most discharged battery and wherein said second semiconductor switch is connected between a second pole of said power supply and a second pole of said most discharged battery.
30. The method of claim 1 further comprising maintaining at least part of said charging current to said most discharged battery until the state of charge of said most discharged battery is within a range of the state of charge of a battery in said system having the next higher state of charge relative to the state of charge of said most discharged battery as determined from a last produced set of state of charge signals, before producing a succeeding set of state of charge signals.
31. The method of claim 1 wherein said batteries are connected to respective battery ports of a current distributor having a plurality of battery ports and wherein said method further comprises determining which of said battery ports has a battery connected thereto.
32. The method of claim 31 wherein determining which of said battery ports has a battery connected thereto is successively performed less frequently than a frequency at which said set of state of charge signals is produced.
33. The method of claim 32 wherein said method comprises setting a port detection timer after determining which of said battery ports has a battery connected thereto and re-determining which of said ports has a battery connected thereto when said port detection timer has timed-out.
34. The method of claim 31 wherein determining which of said battery ports has a battery connected thereto comprises scanning said battery ports.
35. The method of claim 34 wherein scanning said battery ports comprises successively activating each of said battery ports and, while a battery port is activated, permitting a current to be drawn from said battery port.
36. The method of claim 35 further comprising determining whether said current to be drawn from said battery port meets a test criterion and identifying said battery port as having a battery connected thereto when said test criterion is met.
37. The method of claim 36 wherein said test criterion is met when said current drawn from said battery port exceeds a threshold current value after a test period of time.
38. An apparatus for charging batteries in a system of batteries, the apparatus comprising:
a state of charge signal generator operable to produce state of charge signals indicative of the states of charge of each battery in said system;
a power supply operable to produce a charging current;
a current distributor operable to selectively connect each battery in said system to said power supply in response to a control signal;
a controller configured to:
communicate with said state of charge signal generator to successively produce a set of said state of charge signals indicative of the states of charge of each battery in said system;
successively identify, from said set of state of charge signals, a most discharged battery in said system; and produce said control signal to cause said current distributor to selectively connect said most discharged battery to said power supply such that said most discharged battery receives said charging current from said power supply for at least part of a first period of time less than a period of time required to fully charge said most discharged battery, before identifying a succeeding most discharged battery in said system.
a state of charge signal generator operable to produce state of charge signals indicative of the states of charge of each battery in said system;
a power supply operable to produce a charging current;
a current distributor operable to selectively connect each battery in said system to said power supply in response to a control signal;
a controller configured to:
communicate with said state of charge signal generator to successively produce a set of said state of charge signals indicative of the states of charge of each battery in said system;
successively identify, from said set of state of charge signals, a most discharged battery in said system; and produce said control signal to cause said current distributor to selectively connect said most discharged battery to said power supply such that said most discharged battery receives said charging current from said power supply for at least part of a first period of time less than a period of time required to fully charge said most discharged battery, before identifying a succeeding most discharged battery in said system.
39. The apparatus of claim 38 wherein said state of charge generator comprises a voltage sensor operable to measure voltages of the batteries in the system.
40. The apparatus of claim 39 wherein said power supply is operable to be isolated from a battery of said system while said voltage of said battery is being measured.
41. The apparatus of claim 40 wherein said power supply is controllable and wherein said controller is configured to provide a signal to said power supply to de-energize said power supply.
42. The apparatus of claim 41 wherein said state of charge signal generator includes said controller, said controller being configured to successively connect said power supply to each battery in said system and to store voltage measurements of the batteries as said set of state of charge signals.
43. The apparatus of claim 42 wherein said controller is configured to determine which battery of said system is associated with a lowest voltage measurement and to associate with said which battery an identifier identifying it as said most discharged battery.
44. The apparatus of claim 38 wherein said first period of time is selected such that at least a current state of charge of said most discharged battery is maintained over time.
45. The apparatus of claim 38 wherein said first period of time is selected such that at least a current state of charge of said most discharged battery is increased over time.
46. The apparatus of claim 38 wherein said first period of time is selected to avoid interference in a load connected to said most discharged battery.
47. The apparatus of claim 44 wherein said first period of time is selected to avoid interference in a load connected to said most discharged battery.
48. The apparatus of claim 38 wherein said first period of time is between about 1 second and about 30 seconds.
49. The apparatus of claim 38 wherein said first period of time is selected in response to the chemical type of said most discharged battery.
50. The apparatus of claim 38 further comprising a user input port operable to receive user input defining said first period of time.
51. The apparatus of claim 50 wherein said controller is configured to store said user input as stored user input.
52. The apparatus of claim 51 wherein said controller is configured to recall.
53. The apparatus of claim 38 wherein said controller is configured to control said power supply to cause it to produce said charging current according to a charge profile associated with said most discharged battery.
54. The apparatus of claim 38 wherein said controller is configured to activate a first timer for said first period of time, and cause said current distributor to be operated such that said power supply is connected to said most discharged battery while said first timer is activated.
55. The apparatus of claim 54 wherein said controller is configured to control said current distributor to disconnect said most discharged battery from said power supply during said first period of time if said charge current meets a first criterion during said first period of time.
56. The apparatus of claim 55 wherein said controller is configured to determine said charge current meets said first criterion when said charge current is less than a threshold value after a minimum period of time within said first period of time.
57. The method of claim 56 wherein said minimum period of time is such as to avoid interference in a load connected to said most discharged battery.
58. The apparatus of claim 56 wherein said minimum period of time is greater than about 1 second.
59. The apparatus of claim 58 wherein said minimum period of time is less than about 5 seconds.
60. The apparatus of claim 58 wherein said first period of time is about 20 seconds.
61. The apparatus of claim 53 wherein said power supply includes first and second poles and wherein said current distributor is operable to connect said most discharged battery to said first and second poles of said power supply.
62. The apparatus of claim 61 wherein said current distributor comprises a switching circuit operable to be connected between said at least one of said first and second poles and said most discharged battery.
63. The apparatus of claim 62 wherein said switching circuit comprises a semiconductor switch operable to be connected between said at least one of said first and second poles and said most discharged battery.
64. The apparatus of claim 53 wherein said power supply has first and second poles and wherein said current distributor is operable to separately connect said first and second poles to respective poles of said most discharged battery.
65. The apparatus of claim 64 wherein said current distributor comprises first and second switching circuits operable to be connected to said first and second poles respectively of said power supply and to respective poles of said most discharged battery.
66. The apparatus of claim 65 wherein said first and second switching circuits comprise corresponding first and second semiconductor switches, said first semiconductor switch being operable to be connected between said first pole of said power supply and a first pole of said most discharged battery and said second semiconductor switch being operable to be connected between a second pole of said power supply and a second pole of said most discharged battery.
67. The apparatus of claim 38 wherein said controller is configured to maintain at least part of said charging current to said most discharged battery until the state of charge of said most discharged battery is within a range of the state of charge of a battery in said system having the next higher state of charge relative to the state of charge of said most discharged battery as determined from a last produced set of state of charge signals, before producing a succeeding set of state of charge signals.
68. The apparatus of claim 38 wherein said current distributor has a plurality of battery ports and wherein said controller is configured to determine which of said battery ports has a battery connected thereto.
69. The apparatus of claim 68 wherein said controller is configured to successively determine which of said battery ports has a battery connected thereto at a frequency less than a frequency at which said set of state of charge signals is produced.
70. The apparatus of claim 69 wherein said controller is configured to implement and set a port detection timer after determining which of said battery ports has a battery connected thereto and to re-determine which of said ports has a battery connected thereto when said port detection timer has timed-out.
71. The apparatus of claim 68 wherein said controller is configured to scan said battery ports to determine which of said battery ports has a battery connected thereto.
72. The apparatus of claim 71 wherein said controller is configured to scan said battery ports by causing each of said battery ports to be successively activated and, while a battery port is activated, causing a current to be drawn from said battery port.
73. The apparatus of claim 72 wherein said controller is configured to determine whether said current drawn from said battery port meets a test criterion and to identify said battery port as having a battery connected thereto when said test criterion is met.
74. The apparatus of claim 73 wherein said controller is configured to determine that said current drawn from said battery port meets said test criterion when said current drawn from said battery port exceeds a test current value after a threshold period of time.
75. An apparatus for charging batteries in a system of batteries, the apparatus comprising:
means for producing a set of state of charge signals indicative of the states of charge of each battery in said system;
means for successively identifying, from said state of charge signals, a most discharged battery in said system; and means for applying a charging current to said most discharged battery for at least part of a first period of time less than a period of time required to fully charge said most discharged battery before identifying a succeeding most discharged battery in said system.
means for producing a set of state of charge signals indicative of the states of charge of each battery in said system;
means for successively identifying, from said state of charge signals, a most discharged battery in said system; and means for applying a charging current to said most discharged battery for at least part of a first period of time less than a period of time required to fully charge said most discharged battery before identifying a succeeding most discharged battery in said system.
76. In a charger for charging batteries in a system of batteries, where the charger comprises a state of charge signal generator operable to produce state of charge signals indicative of the states of charge of each battery in said system, a controllable power supply operable to produce a charging current, a current distributor operable to selectively connect each battery in said system to said power supply in response to a control signal, and a controller operable to communicate with said state of charge signal generator, said power supply and said current distributor, a method of operating the controller, the method comprising:
causing said controller to communicate with said state of charge signal generator to produce a set of said state of charge signals indicative of the states of charge of each battery in said system;
causing said controller to successively identify, from said state of charge signals, a most discharged battery in said system; and causing said controller to produce said control signal to cause said current distributor to selectively connect said most discharged battery to said power supply such that said most discharged battery receives said charging current from said power supply for at least part of a period of time less than a period of time required to fully charge said most discharged battery, before causing said controller to identify a succeeding most discharged battery in said system.
causing said controller to communicate with said state of charge signal generator to produce a set of said state of charge signals indicative of the states of charge of each battery in said system;
causing said controller to successively identify, from said state of charge signals, a most discharged battery in said system; and causing said controller to produce said control signal to cause said current distributor to selectively connect said most discharged battery to said power supply such that said most discharged battery receives said charging current from said power supply for at least part of a period of time less than a period of time required to fully charge said most discharged battery, before causing said controller to identify a succeeding most discharged battery in said system.
77. A computer readable medium comprising codes for directing a controller in a charger for charging batteries in a system of batteries, where the charger comprises a state of charge signal generator operable to produce state of charge signals indicative of the states of charge of each battery in said system, a controllable power supply operable to produce a charging current and a current distributor operable to selectively connect each battery in said system to said power supply in response to a control signal, and wherein the controller is operable to communicate with said state of charge signal generator, said power supply and said current distributor, the computer readable medium comprising codes readable by the controller for directing the controller to:
communicate with said state of charge signal generator to successively produce a set of said state of charge signals indicative of the states of charge of each battery in said system;
successively identify, from said state of charge signals, a most discharged battery in said system; and produce said control signal to cause said current distributor to selectively connect said most discharged battery to said power supply such that said most discharged battery receives charging current from said power supply for at least part of a period of time less than a period of time required to fully charge said most discharged battery, before causing said controller to identify a succeeding most discharged battery in said system.
communicate with said state of charge signal generator to successively produce a set of said state of charge signals indicative of the states of charge of each battery in said system;
successively identify, from said state of charge signals, a most discharged battery in said system; and produce said control signal to cause said current distributor to selectively connect said most discharged battery to said power supply such that said most discharged battery receives charging current from said power supply for at least part of a period of time less than a period of time required to fully charge said most discharged battery, before causing said controller to identify a succeeding most discharged battery in said system.
78. A method of charging a plurality of batteries, the method comprising charging said batteries according to a dynamic charging sequence in which batteries are added into the charging sequence in order of increasing state of charge as batteries or battery banks already in the charging sequence are charged to exceed the state of charge of a battery or battery bank having the next higher state of charge relative to the state of charge of the batteries already in the charging sequence.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/688,659 US7196494B2 (en) | 2003-10-17 | 2003-10-17 | Method and apparatus for charging batteries in a system of batteries |
US10/688,659 | 2003-10-17 | ||
PCT/CA2004/001808 WO2005036713A1 (en) | 2003-10-17 | 2004-10-07 | Method and apparatus for charging a set of batteries |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2541839A1 true CA2541839A1 (en) | 2005-04-21 |
CA2541839C CA2541839C (en) | 2010-09-21 |
Family
ID=34435433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2541839A Active CA2541839C (en) | 2003-10-17 | 2004-10-07 | Method and apparatus for charging batteries in a system of batteries |
Country Status (7)
Country | Link |
---|---|
US (1) | US7196494B2 (en) |
EP (1) | EP1680851B1 (en) |
CN (1) | CN1977437A (en) |
AT (1) | ATE492057T1 (en) |
CA (1) | CA2541839C (en) |
DE (1) | DE602004030608D1 (en) |
WO (1) | WO2005036713A1 (en) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7737580B2 (en) | 2004-08-31 | 2010-06-15 | American Power Conversion Corporation | Method and apparatus for providing uninterruptible power |
US20060158037A1 (en) * | 2005-01-18 | 2006-07-20 | Danley Douglas R | Fully integrated power storage and supply appliance with power uploading capability |
US7274975B2 (en) * | 2005-06-06 | 2007-09-25 | Gridpoint, Inc. | Optimized energy management system |
US20070203860A1 (en) * | 2006-02-24 | 2007-08-30 | Gridpoint, Inc. | Energy budget manager |
US8103389B2 (en) * | 2006-05-18 | 2012-01-24 | Gridpoint, Inc. | Modular energy control system |
AU2007262351A1 (en) * | 2006-06-20 | 2007-12-27 | Concept Technologies Limited | Environmental monitor and power management system |
US7952328B2 (en) * | 2007-04-12 | 2011-05-31 | Hewlett-Packard Development Company, L.P. | Multi-battery charging system and method |
US20080297110A1 (en) * | 2007-05-31 | 2008-12-04 | Kevin Cordes | Method and system for controlling the distribution of power in a multi-battery charger |
US8179102B2 (en) | 2007-06-20 | 2012-05-15 | Motorola Mobility, Inc. | Devices, systems, and methods for priority charging of a group of electronic devices |
US7944182B2 (en) | 2007-08-03 | 2011-05-17 | American Power Conversion Corporation | Adjustable battery charger for UPS |
US7994755B2 (en) * | 2008-01-30 | 2011-08-09 | Lg Chem, Ltd. | System, method, and article of manufacture for determining an estimated battery cell module state |
KR101056481B1 (en) * | 2008-03-28 | 2011-08-12 | 명지대학교 산학협력단 | Method and apparatus for wirelessly recharging a battery of a mobile terminal using electromagnetic resonance waves |
US9059603B2 (en) * | 2008-12-11 | 2015-06-16 | Sunline Jamaica Limited | Solar powered electrical energy generating device |
US8288992B2 (en) * | 2009-01-14 | 2012-10-16 | Indy Power Systems, Llc | Cell management system |
US9397502B2 (en) | 2009-03-02 | 2016-07-19 | Volterra Semiconductor LLC | System and method for proportioned power distribution in power converter arrays |
WO2010101960A1 (en) * | 2009-03-02 | 2010-09-10 | Element Energy | Systems and methods for scalable configurations of intelligent energy storage packs |
US10283974B2 (en) | 2009-03-02 | 2019-05-07 | Volterra Semiconductor LLC | Systems and methods for intelligent, adaptive management of energy storage packs |
US8581554B2 (en) | 2009-07-10 | 2013-11-12 | Schneider Electric It Corporation | Battery charging method and apparatus |
US8159178B2 (en) * | 2009-08-21 | 2012-04-17 | Xantrex Technology Inc. | AC connected modules with line frequency or voltage variation pattern for energy control |
WO2012148596A1 (en) | 2011-04-29 | 2012-11-01 | Electric Transportation Engineering Corporation, D/B/A Ecotality North America | System for measuring electricity and method of providing and using the same |
WO2012148597A1 (en) | 2011-04-29 | 2012-11-01 | Electric Transportation Engineering Corporation, D/B/A Ecotality North America | Device to facilitate moving an electrical cable of an electric vehicle charging station and method of providing the same |
DE102010043585A1 (en) * | 2010-11-08 | 2012-05-10 | Hilti Aktiengesellschaft | Method and charger for charging at least two accumulators |
US8866412B2 (en) | 2011-01-11 | 2014-10-21 | Braxton Engineering, Inc. | Source and multiple loads regulator |
EP2600488A3 (en) * | 2011-01-26 | 2015-03-11 | Mohamed Papa Talla Fall | Energy converting apparatus and method |
US8449998B2 (en) | 2011-04-25 | 2013-05-28 | Lg Chem, Ltd. | Battery system and method for increasing an operational life of a battery cell |
JP5664446B2 (en) * | 2011-04-28 | 2015-02-04 | トヨタ自動車株式会社 | Battery system |
US20150171638A1 (en) * | 2013-12-13 | 2015-06-18 | Go-Tech Energy Co., Ltd. | Charger for rechargeable battery and charging method thereof |
US10826313B2 (en) * | 2014-02-28 | 2020-11-03 | Apple Inc. | Power management systems for product demonstration fixtures |
WO2016146194A1 (en) * | 2015-03-19 | 2016-09-22 | Vorwerk & Co. Interholding Gmbh | Tool case comprising case bottom and case lid |
KR102479719B1 (en) * | 2015-06-04 | 2022-12-21 | 삼성에스디아이 주식회사 | System and Method for Controlling Battery |
US11342761B2 (en) | 2015-10-22 | 2022-05-24 | Pure Watercraft, Inc. | Battery fleet charging system |
EP3197006B1 (en) * | 2016-01-21 | 2021-06-16 | Samsung Electronics Co., Ltd. | Apparatus and method of charging battery pack |
TWI624133B (en) * | 2016-11-08 | 2018-05-11 | Charge and discharge balance control device and method | |
JP6323822B1 (en) * | 2017-07-07 | 2018-05-16 | Mirai−Labo株式会社 | Power supply device and power supply control method |
US10326305B1 (en) | 2018-08-27 | 2019-06-18 | Ekergy Llc | Personal power plant system and methods of inverse energy generation |
DE102018222558A1 (en) * | 2018-12-20 | 2020-06-25 | Robert Bosch Gmbh | Method of charging a battery system |
US11001155B2 (en) * | 2019-01-14 | 2021-05-11 | Sf Motors, Inc. | Electric vehicle lithium ion battery charging system and method |
US11095141B1 (en) * | 2019-01-30 | 2021-08-17 | Glow Energy Group Corp. | Battery charge controller and related systems and methods |
US10615610B1 (en) | 2019-05-28 | 2020-04-07 | Ekergy Llc | System and method for efficient charging of multiple battery cassettes |
CN112968481B (en) * | 2019-12-13 | 2023-05-30 | 北京小米移动软件有限公司 | Charging circuit and electronic device |
DE102020119815A1 (en) | 2020-07-28 | 2022-02-03 | Bayerische Motoren Werke Aktiengesellschaft | Method for charging an energy storage system of a motor vehicle having a number of partial batteries and battery management system |
CN112078569B (en) * | 2020-09-27 | 2021-10-29 | 株洲中车时代电气股份有限公司 | Control method and control device of hybrid power locomotive |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1432318A (en) * | 1973-07-04 | 1976-04-14 | Vdo Schindling | Apparatus for determining the state of charge of accumulator |
FR2361754A1 (en) * | 1976-08-11 | 1978-03-10 | Accumulateurs Fixes | METHOD AND DEVICE FOR MONITORING THE CHARGE AND DISCHARGE OF AN ACCUMULATOR BATTERY |
FR2406900A1 (en) * | 1977-10-18 | 1979-05-18 | Accumulateurs Fixes | ACCUMULATOR CHARGING PROCESS |
DE3573321D1 (en) * | 1984-06-30 | 1989-11-02 | Udo Kopmann | Device for controlling the charge state of rechargeable batteries |
US5003244A (en) * | 1989-05-09 | 1991-03-26 | Digital Equipment Corporation | Battery charger for charging a plurality of batteries |
DE4216045A1 (en) * | 1992-05-15 | 1993-11-18 | Bosch Gmbh Robert | Multiple charger |
US5514946A (en) * | 1993-03-19 | 1996-05-07 | Compaq Computer Corp. | Battery pack including static memory and a timer for charge management |
US5539298A (en) * | 1993-03-19 | 1996-07-23 | Compaq Computer Corporation | Pulse charge technique to trickle charge a rechargeable battery |
US5504415A (en) * | 1993-12-03 | 1996-04-02 | Electronic Power Technology, Inc. | Method and apparatus for automatic equalization of series-connected batteries |
CA2157814A1 (en) * | 1994-09-09 | 1996-03-10 | David R. Pacholok | Equilization of charge on series connected cells or batteries |
JP3228097B2 (en) * | 1995-10-19 | 2001-11-12 | 株式会社日立製作所 | Charging system and electric vehicle |
SE507339C2 (en) * | 1995-10-31 | 1998-05-18 | Xicon Battery Electronics Ab | Battery level equalization system in batteries consisting of series connected battery cells or battery blocks |
US5982143A (en) * | 1996-08-27 | 1999-11-09 | The University Of Toledo | Battery equalization circuit with ramp converter and selective outputs |
ATE360909T1 (en) | 1997-07-03 | 2007-05-15 | R V Holdings Corp In Trust | DEVICE AND METHOD FOR MANAGING A BATTERY BACKUP POWER SUPPLY DEVICE |
US6064178A (en) * | 1998-05-07 | 2000-05-16 | Ford Motor Company | Battery charge balancing system having parallel switched energy storage elements |
TW502900U (en) * | 1998-11-30 | 2002-09-11 | Ind Tech Res Inst | Battery charging equalizing device |
US6194867B1 (en) * | 1999-01-22 | 2001-02-27 | Dell Usa, L.P. | Adaptive multiple battery charging apparatus |
CA2372933C (en) * | 1999-07-19 | 2008-06-17 | Vladimir Petrovic | Rapid battery charging method and apparatus |
US6150795A (en) * | 1999-11-05 | 2000-11-21 | Power Designers, Llc | Modular battery charge equalizers and method of control |
JP2001211558A (en) * | 2000-01-27 | 2001-08-03 | Sanyo Electric Co Ltd | Charging method for plurality of batteries |
US6452363B1 (en) * | 2000-12-28 | 2002-09-17 | C. E. Niehoff & Co. | Multiple battery charge equalizer |
US6844703B2 (en) * | 2002-08-14 | 2005-01-18 | The Boeing Company | Battery cell balancing system |
-
2003
- 2003-10-17 US US10/688,659 patent/US7196494B2/en active Active
-
2004
- 2004-10-07 CA CA2541839A patent/CA2541839C/en active Active
- 2004-10-07 DE DE602004030608T patent/DE602004030608D1/en active Active
- 2004-10-07 EP EP04789717A patent/EP1680851B1/en active Active
- 2004-10-07 WO PCT/CA2004/001808 patent/WO2005036713A1/en active Application Filing
- 2004-10-07 AT AT04789717T patent/ATE492057T1/en not_active IP Right Cessation
- 2004-10-07 CN CNA2004800304995A patent/CN1977437A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
US20050083014A1 (en) | 2005-04-21 |
EP1680851A4 (en) | 2009-06-03 |
CN1977437A (en) | 2007-06-06 |
WO2005036713A1 (en) | 2005-04-21 |
EP1680851B1 (en) | 2010-12-15 |
EP1680851A1 (en) | 2006-07-19 |
ATE492057T1 (en) | 2011-01-15 |
US7196494B2 (en) | 2007-03-27 |
CA2541839C (en) | 2010-09-21 |
DE602004030608D1 (en) | 2011-01-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2541839A1 (en) | Method and apparatus for charging batteries in a system of batteries | |
US8773070B2 (en) | Apparatus and method for balancing charge capacity of battery cell | |
EP1836757B1 (en) | System for controlling voltage balancing in a plurality of litium-ion cell battery packs | |
CN103078151B (en) | Charging battery module and charging method for the same | |
EP2418751B1 (en) | Battery charger and battery charging method | |
US8102153B2 (en) | Battery voltage adjusting device | |
US20110127963A1 (en) | Equalization device, equalization processing program, battery system, electric vehicle and equalization processing method | |
CN102227645B (en) | Apparatus and method for monitoring cell voltage of battery pack | |
CN110015182B (en) | Battery equalization system, vehicle, battery equalization method, and storage medium | |
KR101671551B1 (en) | Battery chargers, electrical systems, and rechargeable battery charging methods | |
JPH09103033A (en) | Charger and charging method | |
CN109435777B (en) | Battery equalization system, vehicle, battery equalization method, and storage medium | |
JP2009232659A (en) | Charge-discharge control method and charge-discharge control device of battery | |
KR20210040704A (en) | Charging control method and battery system using the same | |
SE9603151L (en) | Kits and devices control the voltage of individual cells in a battery | |
KR101569216B1 (en) | Battery pack | |
US6424120B1 (en) | Asymmetrical charger | |
CN110235334B (en) | Equalization control device and vehicle-mounted power supply device | |
CN111077472A (en) | Electric leakage judging system | |
JPH08163786A (en) | Method and apparatus for controlling charging of battery bank | |
JP2001021626A (en) | Apparatus for measuring capacity of battery with gassing judgment function without using temperature sensor | |
JP2010246214A (en) | Device for regulating and monitoring battery voltage | |
JP5601569B2 (en) | Voltage regulation system | |
JP2006081334A (en) | Charge/discharge controller of battery pack | |
JP2002142374A (en) | Variable voltage capacitor power storage system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request |