WO2011121064A1 - Method for controlling the circulation of current between at least one charging station and one or more electric vehicles - Google Patents

Method for controlling the circulation of current between at least one charging station and one or more electric vehicles Download PDF

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Publication number
WO2011121064A1
WO2011121064A1 PCT/EP2011/054991 EP2011054991W WO2011121064A1 WO 2011121064 A1 WO2011121064 A1 WO 2011121064A1 EP 2011054991 W EP2011054991 W EP 2011054991W WO 2011121064 A1 WO2011121064 A1 WO 2011121064A1
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WO
WIPO (PCT)
Prior art keywords
charging
charging station
electric vehicle
discharging process
controlling
Prior art date
Application number
PCT/EP2011/054991
Other languages
German (de)
French (fr)
Inventor
Herbert Füreder
Fritz Kasslatter
Thomas Ritter
Original Assignee
Siemens Ag Österreich
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Ag Österreich filed Critical Siemens Ag Österreich
Publication of WO2011121064A1 publication Critical patent/WO2011121064A1/en

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Classifications

    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/305—Communication interfaces
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/31—Charging columns 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
    • B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
    • 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
    • B60L2240/80—Time limits
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • 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
    • 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
    • Y02T90/12—Electric charging stations
    • 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
    • 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
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • Y04S10/126—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Definitions

  • the invention relates to a method for controlling the
  • Electric vehicles referred to which may be public or not ⁇ publicly accessible and is formed in the simplest case as a socket to which the battery of an electrically powered vehicle can be charged via a cable connection.
  • the task arises that of the network during a charging process
  • Billing subject to fluctuations i.
  • the electricity price changes in the course of the day according to the respective network requirements and is also dependent on the provider.
  • the current conditions for the purchase or delivery of electricity are only visible to the user when he approaches the electric charging station with the electric vehicle, gets out of the electric vehicle and on the display unit on the currently valid tariffs, the required permissions and other
  • the invention is therefore based on the object to simplify the loading - unloading.
  • Electricity charging station and one or more electric vehicles in which by means of radio transmission periodically sent from the at least one charging station information, whether the same is ready for a charge or discharge, in which the electric vehicle, which is ready for a corresponding charge or discharge, responds, responds the still charging station and electric vehicle by means of
  • Discharge process is used.
  • wireless communication takes place between the charging station and the electric vehicle, by means of the data such as the availability of electricity charging stations, the position
  • Unloading can be made without direct contact with the charging station. This is a significant
  • the identification character comprises a binary number sequence, by means of which the
  • the said standard is widely used and for
  • the figure shows an electric vehicle 1 at one
  • Electric vehicle and charging station have communication elements 4 according to IEEE standard 802.1 lg / a / n / p. With these communication elements 4, they are able to communicate with each other wirelessly. And that's it quite conceivable that for this communication more
  • Vehicles 1 or charging stations 2 are used as relay stations and so the range is extended. Already during the journey, this communication can be used to determine the data relevant to a charge-discharge process, such as
  • the charging station 2 sends to the electric vehicle 1 an identification mark in the form of a binary number. After connecting the electric vehicle to the
  • Charging cable 3 is clocked by means of this binary number of the charge-discharge so the current flow by
  • the current flow is switched on for two seconds (logical 1), then switched off (logical 0) for the same period and then switched on for 4 seconds (two times logical 1).
  • This coding of the current flow is a

Abstract

The invention relates to a method for controlling the circulation of current between at least one charging station (2) and one or more electric vehicles (1), wherein information is transmitted periodically by means of wireless transmission from the at least one charging station (2) indicating whether the charging station is ready for a charging or discharging operation, wherein the electric vehicle (1) which is ready for a corresponding charging or discharging operation responds, wherein furthermore by means of encrypted communication the charging station (2) and the electric vehicle (1) exchange data which are crucial for the charging or discharging operation such as in particular the position of the charging station, prices, or amount of electricity, wherein upon acceptance of the conditions the charging station (2) sends an identification sign to the electric vehicle (1) and after connection of the electric vehicle to the charging cable (3) the identification sign is used for controlling the charging or discharging operation.

Description

Beschreibung description
Bezeichnung der Erfindung Name of the invention
Verfahren zur Steuerung des Stromaustausches zwischen Method for controlling the current exchange between
zumindest einer Stromtankstelle und einem oder mehreren at least one charging station and one or more
Elektrofahrzeugen . Die Erfindung betrifft ein Verfahren zur Steuerung des Electric vehicles. The invention relates to a method for controlling the
Stromaustausches zwischen zumindest einer Stromtankstelle und einem oder mehreren Elektrofahrzeugen .  Electricity exchanges between at least one charging station and one or more electric vehicles.
Als Stromtankstelle wird eine Lademöglichkeit für As a charging station is a charging option for
Elektrofahrzeuge bezeichnet, welche öffentlich oder nicht¬ öffentlich zugänglich sein kann und im einfachsten Fall als Steckdose ausgebildet ist, an welcher der Akkumulator eines elektrisch angetriebenen Fahrzeugs über eine Kabelverbindung aufgeladen werden kann. Bei öffentlichen Tankstellen stellt sich die Aufgabe, den vom Netz bei einem Ladevorgang Electric vehicles referred to, which may be public or not ¬ publicly accessible and is formed in the simplest case as a socket to which the battery of an electrically powered vehicle can be charged via a cable connection. At public petrol stations, the task arises that of the network during a charging process
bezogenen bzw. den bei einem Entladevorgang an das Netz abgelieferten Strom entsprechend zu vergebühren. related or charged in a discharge process to the grid electricity accordingly.
Diese Vergebührung erfordert geeignete This charging requires appropriate
Kommunikationsmöglichkeiten zwischen dem Elektrofahrzeug und der Stromtankstelle. Nach dem Stand der Technik sind dafür Datenleitungen oder die sogenannte Power Line Communication über das Ladekabel vorgesehen. Darüber hinaus ist diese Communication options between the electric vehicle and the charging station. According to the prior art data lines or the so-called power line communication via the charging cable are provided. In addition, this is
Vergebührung Schwankungen unterworfen, d.h. der Strompreis ändert sich im Tagesverlauf nach dem jeweiligen Netzbedarf und ist auch vom Anbieter abhängig. Die aktuellen Bedingungen für den Bezug oder die Abgabe von Strom sind aber für den Nutzer nur ersichtlich, wenn er sich mit dem Elektrofahrzeug der Stromtankstelle nähert, aus dem Elektrofahrzeug aussteigt und sich auf der Anzeigeeinheit über die gerade gültigen Tarife, die erforderlichen Berechtigungen und sonstigen Billing subject to fluctuations, i. The electricity price changes in the course of the day according to the respective network requirements and is also dependent on the provider. However, the current conditions for the purchase or delivery of electricity are only visible to the user when he approaches the electric charging station with the electric vehicle, gets out of the electric vehicle and on the display unit on the currently valid tariffs, the required permissions and other
Bedingungen informiert. Alternativ dazu werden diese Conditions informed. Alternatively, these will
Bedingungen über die genannten drahtgebundenen Kommunikationswege nach Anschluss des Ladekabels auch an eine Bedieneinheit im Fahrzeug übermittelt. In diesem Fall muss der Fahrer nach Anschluss des Ladekabels wieder in das Conditions over the said wired Communication paths after connection of the charging cable also transmitted to an operating unit in the vehicle. In this case, the driver must return to the after connecting the charging cable
Fahrzeug einsteigen, sich über die Bedingungen informieren und, wenn er mit denselben nicht einverstanden ist, wieder aussteigen und das Ladekabel entfernen und gegebenenfalls eine andere Stromtankstelle aufsuchen. Get in the vehicle, find out about the conditions and, if he disagrees with them, get out and remove the charging cable and, if necessary, go to another charging station.
Der Erfindung liegt daher die Aufgabe zugrunde, den Lade - Entladevorgang zu vereinfachen. The invention is therefore based on the object to simplify the loading - unloading.
Erfindungsgemäß geschieht dies mit einem Verfahren zur According to the invention, this is done with a method for
Steuerung des Stromaustausches zwischen zumindest einer Control of the current exchange between at least one
Stromtankstelle und einem oder mehreren Elektrofahrzeugen bei dem mittels Funkübertragung periodisch von der zumindest einen Stromtankstelle Informationen ausgesendet werden, ob dieselbe für einen Lade- oder Entladevorgang bereit ist, bei dem das Elektrofahrzeug, welches zu einem entsprechenden Lade- oder Entladevorgang bereit ist, antwortet, bei dem weiterhin Stromtankstelle und Elektrofahrzeug mittels Electricity charging station and one or more electric vehicles in which by means of radio transmission periodically sent from the at least one charging station information, whether the same is ready for a charge or discharge, in which the electric vehicle, which is ready for a corresponding charge or discharge, responds, responds the still charging station and electric vehicle by means of
verschlüsselter Kommunikation die für den Lade- oder encrypted communication for the loading or
Entladevorgang maßgeblichen Daten wie insbesondere die Unloading relevant data such as in particular the
Position der Stromtankstelle, Preise, Strommenge austauschen, bei dem bei Akzeptanz der Bedingungen die Stromtankstelle an das Elektrofahrzeug ein Identifikationszeichen sendet und nach Anschluss des Elektrofahrzeuges an das Ladekabel das Identifikationszeichen zur Steuerung des Lade- oder Replace the location of the charging station, prices, amount of electricity at which the charging station to the electric vehicle sends an identification mark upon acceptance of the conditions and after connecting the electric vehicle to the charging cable, the identification mark for controlling the charging or
Entladevorganges herangezogen wird. Erfindungsgemäß erfolgt eine drahtlose Kommunikation zwischen Stromtankstelle und Elektrofahrzeug, mittels der Daten wie die Verfügbarkeit von Stromtankstellen, die Position Discharge process is used. According to the invention, wireless communication takes place between the charging station and the electric vehicle, by means of the data such as the availability of electricity charging stations, the position
derselben, sowie Vergebührungsinformationen ausgetauscht werden und somit die Entscheidung für einen Lade- oder same, as well as billing information to be exchanged and thus the decision for a loading or
Entladevorgang ohne direkten Kontakt mit der Stromtankstelle getroffen werden können. Damit ist eine erhebliche Unloading can be made without direct contact with the charging station. This is a significant
Zeitersparnis und Komfortgewinn verbunden. Vorteilhaft ist es weiterhin, wenn das Identifikationszeichen eine binäre Zahlenfolge umfasst, mittels welcher der Time savings and comfort gain associated. It is furthermore advantageous if the identification character comprises a binary number sequence, by means of which the
Stromfluss beim Lade- oder Entladevorgang getaktet wird. Current flow is clocked during charging or discharging.
Damit wird eine einfache konstruktive Lösung ermöglicht, bei der im Elektrofahrzeug lediglich ein einfacher steuerbarer Stromunterbrechungsmechanismus und in der Stromtankstelle ein einfacher binärer Stromflussdetektor benötigt wird. Durch den getakteten Stromfluss entsprechend der binären Zahlenfolge wird das Elektrofahrzeug eindeutig identifiziert und This allows a simple design solution in which only a simple controllable current interruption mechanism in the electric vehicle and a simple binary current flow detector is required in the charging station. Due to the clocked current flow corresponding to the binary sequence of numbers, the electric vehicle is clearly identified and
zusätzlich überprüft, ob das Ladekabel richtig angebracht ist. Damit sind auch Manipulationen durch Vertauschen der Kabel ist ausgeschlossen. Damit sind keine zusätzlichen additionally checks whether the charging cable is correctly attached. This also manipulations by swapping the cable is excluded. There are no additional ones
Datenleitungen oder Mittel zur Power Line Communication erforderlich . Data lines or means for power line communication required.
Vorteilhaft ist es auch, wenn die Funkübertragung gemäß IEEE Norm 802.1 lg/a/n/p erfolgt. It is also advantageous if the radio transmission according to IEEE standard 802.1 lg / a / n / p takes place.
Der genannte Standard ist weit verbreitet und für The said standard is widely used and for
Fahrzeuganwendungen wie beispielsweise die sogenannte car-to- car oder car-to-infrastructure Kommunikation sehr gut Vehicle applications such as the so-called car-to-car or car-to-infrastructure communication very well
geeignet . suitable .
Zur weiteren Beschleunigung des Verfahrens ist es zweckmäßig, wenn die für einen Lade- oder Entladevorgang akzeptablen Bedingungen in einem Speicher einer Bedieneinheit des To further speed up the process, it is expedient if the conditions acceptable for a charging or discharging operation are stored in a memory of an operating unit of the
Elektrofahrzeuges hinterlegt sind. Electric vehicle are deposited.
Die Erfindung wird anhand eines in der Figur dargestellten Ausführungsbeispieles näher erläutert. The invention will be explained in more detail with reference to an embodiment shown in the figure.
Die Figur zeigt ein Elektrofahrzeug 1 an einer The figure shows an electric vehicle 1 at one
Stromtankstelle 2. Elektrofahrzeug und Stromtankstelle weisen Kommunikationselemente 4 gemäß IEEE Norm 802.1 lg/a/n/p auf. Mit diesen Kommunikationselementen 4 sind sie in der Lage, drahtlos miteinander zu kommunizieren. Dabei ist es auch durchaus denkbar, dass für diese Kommunikation weitere Charging station 2. Electric vehicle and charging station have communication elements 4 according to IEEE standard 802.1 lg / a / n / p. With these communication elements 4, they are able to communicate with each other wirelessly. And that's it quite conceivable that for this communication more
Fahrzeuge 1 oder Stromtankstellen 2 als Relaisstationen genutzt werden und so die Reichweite erweitert wird. Mit dieser Kommunikation können bereits während der Fahrt die für einen Lade- Entladevorgang maßgeblichen Daten wie Vehicles 1 or charging stations 2 are used as relay stations and so the range is extended. Already during the journey, this communication can be used to determine the data relevant to a charge-discharge process, such as
insbesondere die Position der Stromtankstelle 1, Preise, Strommenge ausgetauscht werden und so ohne Zeitverlust die Auswahl einer geeigneten Stromtankstelle 2 erfolgen. In particular, the position of the charging station 1, prices, quantities of electricity are exchanged and so the selection of a suitable charging station 2 without loss of time.
Wenn diese gefunden ist, sendet die Stromtankstelle 2 an das Elektrofahrzeug 1 ein Identifikationszeichen in Form einer Binärzahl. Nach Anschluss des Elektrofahrzeuges an das If found, the charging station 2 sends to the electric vehicle 1 an identification mark in the form of a binary number. After connecting the electric vehicle to the
Ladekabel 3 wird mittels dieser Binärzahl der Lade- Entladevorgang also der Stromfluss getaktet, indem Charging cable 3 is clocked by means of this binary number of the charge-discharge so the current flow by
beispielsweise bei der Binärzahl 1011 der Stromfluss für zwei Sekunden eingeschaltet (logisch 1) , danach für den selben Zeitraum ausgeschaltet (logisch 0) wird und danach für 4 Sekunden eingeschaltet wird (zwei mal logisch 1) . For example, in the case of the 1011 binary number, the current flow is switched on for two seconds (logical 1), then switched off (logical 0) for the same period and then switched on for 4 seconds (two times logical 1).
Durch diese Kodierung des Stromflusses ist eine This coding of the current flow is a
Identifikation des Elektrofahrzeuges 1 möglich, ohne dass dazu zusätzliche mittel zur Datenübertragung erforderlich wären . Identification of the electric vehicle 1 possible without the need for additional means for data transmission would be required.
Die Verrechnung des Strombezuges oder der Lieferung an das Netz erfolgt dann auf Grund der bereits vorab drahtlos ausgetauschten Daten. Bezugszeichenliste The offsetting of the electricity purchase or the delivery to the network then takes place on the basis of the already previously wirelessly exchanged data. LIST OF REFERENCE NUMBERS
1 Elektrofahrzeug 1 electric vehicle
2 Stromtankstelle  2 charging station
3 Ladekabel  3 charging cables
4 Kommunikationselemente 4 communication elements

Claims

Patentansprüche / Patent Claims Patent claims / patent claims
Verfahren zur Steuerung des Stromaustausches zwischen zumindest einer Stromtankstelle (2) und einem oder mehreren Elektrofahrzeugen (1) mit folgenden Method for controlling the exchange of electricity between at least one charging station (2) and one or more electric vehicles (1) with the following
Verfahrensschritten : Process steps:
• mittels Funkübertragung werden periodisch von der zumindest einen Stromtankstelle Informationen ausgesendet, ob dieselbe für einen Lade- oder Entladevorgang bereit ist; • By means of radio transmission, information is periodically sent out from the at least one charging station as to whether it is ready for a charging or discharging process;
• das Elektrofahrzeug (1), welches zu einem • the electric vehicle (1), which becomes one
entsprechenden Lade- oder Entladevorgang bereit ist, antwortet; is ready for the corresponding charging or discharging process, responds;
• Stromtankstelle • Electric charging station
(2) und Elektrofahrzeug (1) tauschen mittels verschlüsselter Kommunikation (4) die für den Lade- oder Entladevorgang maßgeblichen Daten wie insbesondere die Position der Stromtankstelle, Preise, Strommenge aus;(2) and the electric vehicle (1) use encrypted communication (4) to exchange the data relevant to the charging or discharging process, such as in particular the position of the charging station, prices and quantity of electricity;
• bei Akzeptanz der Bedingungen sendet die • if the conditions are accepted, the sends
Stromtankstelle an das Elektrofahrzeug ein Identifikations zeichen An identification mark is attached to the electric vehicle at the charging station
• Nach Anschluss des Elektrofahrzeuges (1) an das Ladekabel (3) wird das Identifikationszeichen zur Steuerung des Lade- oder Entladevorganges herangezogen . • After connecting the electric vehicle (1) to the charging cable (3), the identification symbol is used to control the charging or discharging process.
Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Identifikationszeichen eine binäre Zahlenfolge umfasst, mittels welcher der Stromfluss beim Lade- oder Entladevorgang getaktet wird. Method according to claim 1, characterized in that the identification symbol comprises a binary number sequence by means of which the current flow is clocked during the charging or discharging process.
3. Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Funkübertragung gemäß IEEE Norm 802.1 lg/a/n/p erfolgt. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die für einen Lade- oder 3. Method according to one of claims 1 or 2, characterized in that the radio transmission takes place in accordance with IEEE standard 802.1 lg/a/n/p. Method according to one of claims 1 to 3, characterized in that for a charging or
Entladevorgang akzeptablen Bedingungen in einem Discharging process acceptable conditions in one
Speicher einer Bedieneinheit des Elektrofahrzeuges (1) hinterlegt sind. Memory of a control unit of the electric vehicle (1) are stored.
PCT/EP2011/054991 2010-04-01 2011-03-31 Method for controlling the circulation of current between at least one charging station and one or more electric vehicles WO2011121064A1 (en)

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