Electric charging of electric vehicles by adapter for signal conversion

• US 10,421,365 B2
• Filed: 06/22/2017
• Issued: 09/24/2019
• Est. Priority Date: 06/24/2016
• Status: Active Grant

• Current Assignee: Volkswagen AG
• Original Assignee: Volkswagen AG
• Inventors: Zech, Ingo, Wegener, Andreas
• Primary Examiner(s): Tso, Edward
• Assistant Examiner(s): Omar, Ahmed H
• Application Number:
  US15/629,796
• Publication Number:
  US 20170368953A1
• Time in Patent Office: 824 Days
• Field of Search: 320104
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/60 Monitoring or controlling charging stations
• CPC Class Codes: H01R 2201/26 for vehicles
• CPC Class Codes: H01R 31/065 with built-in electric apparatus
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H04L 12/40013 Details regarding a bus controller
• CPC Class Codes: H04L 2012/40215 Controller Area Network CAN
• CPC Class Codes: H04L 2012/40273 the transportation system being a vehicle
• 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 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

Abstract

An adapter having a CHAdeMO socket on its input side for receiving a charging station connector of a CHAdeMO charging station, a CCS connector on its output side for connection to an electric vehicle, and an electronic circuit logic which embeds signal states entering via the CHAdeMO socket into a CAN message and to provide them as an output signal.

Claims

1. An adapter comprising:

a CHAdeMO socket on an input side of the adapter for receiving a charging station connector of a CHAdeMO charging station;

a CCS connector on an output side of the adapter for connection to an electric vehicle; and

an electronic circuit logic which embeds signal states entering via the CHAdeMO socket into a CAN message and provides the embedded signal states as an output signal,

wherein the electronic circuit logic forwards a CAN message occurring in communication during a charging process from the CHAdeMO charging station or from a charging manager of the electric vehicle unchanged to a respective destination.

2. The adapter of claim 1, wherein the adapter sends the CAN message to an additional controller, connected in front of a charging manager in the electric vehicle.

3. The adapter of claim 1, wherein CCS lines, Control Pilot and Proximity Pilot, are used as CAN-HIGH and CAN-LOW for transmitting the CAN message to the electric vehicle and/or the HV supply voltage lines are directly connected through the adapter and/or a functional protective ground is connected through and used as a GND potential for the communication.

4. A controller connected between a CCS charging socket of an electric vehicle and a charging manager of the electric vehicle, the controller comprising:

a circuit logic which converts a CAN message received from a circuit logic of a CHAdeMO-CCS adapter into electrical signals and provides the electrical signals to the charging manager of the electric vehicle,

wherein the circuit logic forwards a CAN message occurring in communication during a charging process from a CHAdeMO charging station or from the charging manager of the electric vehicle unchanged to the respective destination.

5. The controller of claim 4, wherein the circuit logic converts the digital output signals of the charging manager into CAN messages and sends the CAN messages to a circuit logic of the CHAdeMO-CCS adapter.

6. The additional controller of claim 4, wherein the controller connects with the functional protective ground, Control Pilot and Proximity Pilot lines via a line trunk at the CCS charging socket of the electric vehicle.

7. A charging system comprising:

an adapter that includes a CHAdeMO socket on an input side of the adapter for receiving a charging station connector of a CHAdeMO charging station, a CCS connector on an output side of the adapter for connection to an electric vehicle, and an electronic circuit logic which embeds signal states entering via the CHAdeMO socket into a CAN message and provides the embedded signal states as an output signal; and

an additional controller connected in front of a charging manager in the electric vehicle connected between a CCS charging socket of the electric vehicle and the charging manager of the electric vehicle, the additional controller including a circuit logic which converts a CAN message received from a circuit logic of a CHAdeMO-CCS adapter into electrical signals and provides the electrical signals to the charging manager of the electric vehicle,

wherein the electronic circuit logic forwards a CAN message occurring in communication during a charging process from the CHAdeMO charging station or from a charging manager of the electric vehicle unchanged to a respective destination.

8. The charging system of claim 7, wherein the adapter sends the CAN message to an additional controller, connected in front of a charging manager in the electric vehicle.

9. The charging system of claim 7, wherein CCS lines, Control Pilot and Proximity Pilot, are used as CAN-HIGH and CAN-LOW for transmitting the CAN message to the electric vehicle and/or the HV supply voltage lines are directly connected through the adapter and/or a functional protective ground is connected through and used as a GND potential for the communication.

10. The charging system of claim 7, wherein the circuit logic converts the digital output signals of the charging manager into CAN messages and sends the CAN messages to a circuit logic of the CHAdeMO-CCS adapter.

11. The charging system of claim 7, wherein the circuit logic converts the digital output signals of the charging manager into CAN messages and sends the CAN messages to a circuit logic of the CHAdeMO-CCS adapter.

12. The charging system of claim 7, wherein the circuit logic forwards a CAN message occurring in communication during a charging process from a CHAdeMO charging station or from the charging manager of the electric vehicle unchanged to the respective destination.

13. The charging system of claim 7, wherein the additional controller connects with the functional protective ground, Control Pilot and Proximity Pilot lines via a line trunk at the CCS charging socket of the electric vehicle.

14. A charging method, the method comprising:

receiving signal states from a CHAdeMO charging station at an adapter that includes a CHAdeMO socket on an input side of the adapter for receiving a charging station connector of a CHAdeMO charging station, a CCS connector on an output side of the adapter for connection to an electric vehicle and an electronic circuit logic;

embedding the signal states entering via the CHAdeMO socket into a CAN message as an output signal; and

forwarding the embedded signal states in the CAN message to the electric vehicle.

15. The charging method of claim 14, further comprising the adapter sending the CAN message to an additional controller, connected in front of a charging manager in the electric vehicle.

16. The method of claim 14, wherein CCS lines, Control Pilot and Proximity Pilot, are used as CAN-HIGH and CAN-LOW for transmitting the CAN message to the electric vehicle and/or the HV supply voltage lines are directly connected through the adapter and/or a functional protective ground is connected through and used as a GND potential for the communication.

17. The method of claim 14, wherein the circuit logic converts the digital output signals of the charging manager into CAN messages and sends the CAN messages to a circuit logic of the CHAdeMO-CCS adapter.

18. The method of claim 14, wherein the circuit logic converts the digital output signals of the charging manager into CAN messages and sends the CAN messages to a circuit logic of the CHAdeMO-CCS adapter.

19. The method of claim 14, wherein the circuit logic forwards a CAN message occurring in communication during a charging process from a CHAdeMO charging station or from the charging manager of the electric vehicle unchanged to the respective destination.

20. The method of claim 14, wherein the additional controller connects with the functional protective ground, Control Pilot and Proximity Pilot lines via a line trunk at the CCS charging socket of the electric vehicle.