POWER SUPPLY SYSTEM FOR ELECTRIC VEHICLES AND METHOD FOR CONTROLLING SAME

• US 20110231044A1
• Filed: 09/25/2009
• Published: 09/22/2011
• Est. Priority Date: 10/08/2008
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Fassnacht, Jochen
• Application Number:
  US13/122,431
• Publication Number:
  US 20110231044A1
• Time in Patent Office: Days
• US Class Current: 701/22
• CPC Class Codes: B60L 2240/62 Vehicle position
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/34 Plug-like or socket-like devices specially adapted for contactless inductive charging of electric vehicles positioning means for charging devices using inductive energy transfer B60L53/38
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60W 10/26 for electrical energy, e.g. batteries or capacitors
• CPC Class Codes: B60W 20/00 Control systems specially adapted for hybrid vehicles hybrid vehicle design, B60K6/00; electric vehicles B60L
• CPC Class Codes: B60W 2510/244 Charge state
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: H02J 5/00 Circuit arrangements for transfer of electric power between ac networks and dc networks H02J3/36 takes precedence
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y02T 90/167 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]
• CPC Class Codes: Y04S 30/14 Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

A power supply system for electric vehicles is described having an on-board energy storage and an on-board charging device, which is connectable to a grid connection station of a stationary power supply grid in order to charge the on-board energy storage. An interface is provided between an on-board component and a stationary component for connecting the charging unit to the grid connection station of the power supply grid during the charging operation in order to transmit operating characteristics of the power supply grid to the on-board charging device. Furthermore, a method for controlling the power supply system is also described.

Claims

1-13. -13. (canceled)

14. A power supply system for an electric vehicle, comprising:

at least one on-board energy storage;

at least one on-board charging device which is connectable to a grid connection station of a power supply grid for charging the at least one on-board energy storage; and

an interface between an on-board component and a stationary component to connect the charging device to the grid connection station of the power supply grid during the charging operation to transmit operating characteristics of the power supply grid to the on-board charging device.

15. The power supply system as recited in claim 14, wherein the interface includes a plug connection.

16. The power supply system as recited in claim 14, wherein the interface is bidirectional for data exchange.

17. The power supply system as recited in claim 15, wherein the plug connection has a structural coding.

18. The power supply system as recited in claim 17, wherein the structural coding includes lugs.

19. The power supply system as recited in claim 15, wherein the plug connection includes at least one of a color coding and a coding pattern.

20. The power supply system as recited in claim 15, wherein the plug connectors includes a barcode.

21. The power supply system as recited in claim 14, wherein a position of the grid connection station and the operating characteristics of the power supply grid are stored in a navigation system and are retrievable by the electric vehicle.

22. The power supply system as recited in claim 14, wherein the operating characteristics of the power supply grid are imposed on a voltage signal supplied at the grid connection station and are retrievable there by the on-board charging device.

23. The power supply system as recited in claim 15, wherein the plug connection includes a transceiver device/transponder via which the operating characteristics of the power supply grid are wirelessly transmissible to the on-board charging device.

24. The power supply system as recited in claim 15, wherein the plug connection includes an infrared interface for transmitting the operating characteristics of the power supply grid to the on-board charging device.

25. The power supply system as recited in claim 14, wherein the operating characteristics of one of the power supply grid or the grid connection station connected thereto are retrievable via at least one of the Internet or a wireless.

26. The power supply system as recited in claim 14, wherein the on-board charging device receives a local position of an available grid connection station and the operating characteristics of the power supply grid to be encountered there at an entrance to the parking facility.

27. A method for controlling a power supply system for an electric vehicle having at least one energy storage and at least one charging device in which the energy storage is chargeable on a power supply grid, comprising:

receiving a report of maximum current drawable from the power supply grid before a start of a charging operation by the charging device of the electric vehicle; and

;

controlling, by the charging device, a charging current in such a way that the current does not exceed a maximum reported value.

28. The method as recited in claim 27, further comprising:

reporting a charge state of the on-board energy storage to the power supply grid.