Methods, systems and apparatus for authorizing operation of an electric vehicle that is being charged at a charging station

• US 9,283,856 B2
• Filed: 02/24/2014
• Issued: 03/15/2016
• Est. Priority Date: 02/24/2014
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Huntzicker, Fred W., Williams, Paul R.
• Primary Examiner(s): Tarcza, Thomas
• Assistant Examiner(s): GOLDMAN, RICHARD A
• Application Number:
  US14/187,890
• Publication Number:
  US 20150239357A1
• Time in Patent Office: 750 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: B60L 53/62 in response to charging parameters, e.g. current, voltage or electrical charge
• CPC Class Codes: B60L 53/66 Data transfer between charging stations and vehicles
• CPC Class Codes: B60L 53/68 Off-site monitoring or control, e.g. remote control
• CPC Class Codes: H04L 63/062 for key distribution, e.g. centrally by trusted party cryptographic mechanisms or cryptographic arrangements for key distribution involving a central third party H04L9/0819
• CPC Class Codes: H04L 63/0815 providing single-sign-on or federations
• CPC Class Codes: H04L 63/0869 for achieving mutual authentication cryptographic mechanisms or cryptographic arrangements for mutual authentication H04L9/3273
• CPC Class Codes: H04W 12/04 Key management, e.g. using generic bootstrapping architecture [GBA]
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/61 Time-dependent
• 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
• 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 30/12 Remote or cooperative charging

Abstract

Methods and systems are disclosed for authorizing operation of an electric vehicle that is being charged at a charging station. A computer can determine whether predefined criteria relating to the electric vehicle have been satisfied, and, if so, communicates a virtual key to the electric vehicle. The virtual key allows the electric vehicle to be operated in a limited operating mode that defines constraints on operating the vehicle. The virtual key allows the electric vehicle to be operated in the limited operating mode without a physical key or fob being present at the electric vehicle. The electric vehicle includes a processor configured to receive the virtual key and to control operation of the electric vehicle according to the constraints defined by the virtual key.

Claims

1. A method for authorizing operation of an electric vehicle within boundaries that are defined with respect to a charging station that the electric vehicle is being charged at, the method comprising:

determining, at a computer, whether predefined criteria relating to charging status of the electric vehicle have been satisfied; and

communicating a virtual key to the electric vehicle when the predefined criteria are determined to be satisfied, wherein the virtual key authorizes operation of the electric vehicle within the boundaries that are defined with respect to the charging station, and allows the electric vehicle to be operated in a limited operating mode that defines constraints on operating the vehicle.

2. The method according to claim 1, wherein the virtual key allows the electric vehicle to be operated in the limited operating mode without a physical key or fob being present at the electric vehicle.

3. The method according to claim 1, wherein the constraints on operating the vehicle specify a maximum distance that the electric vehicle is allowed to be moved during the limited operating mode.

4. The method according to claim 1, wherein the constraints on operating the vehicle specify a maximum speed at which the electric vehicle is allowed to be moved during the limited operating mode.

5. The method according to claim 1, wherein the constraints on operating the vehicle specify a maximum acceleration at which the electric vehicle is allowed to be moved during the limited operating mode.

6. The method according to claim 1, wherein the constraints on operating the vehicle specify a maximum time that the electric vehicle is allowed to be moved for after the virtual key is communicated to the electric vehicle.

7. The method according to claim 1, wherein the constraints on operating the vehicle specify a geographical region or boundaries that the electric vehicle is allowed to be moved within with respect to the charging station during the limited operating mode.

8. The method according to claim 1, wherein the predefined criteria relating to charging status of the electric vehicle is that the electric vehicle is within a certain percentage of being fully charged.

9. The method according to claim 1, wherein the predefined criteria relating to charging status of the electric vehicle is that the electric vehicle has been connected to the charging station for a period greater than or equal to a predetermined duration.

10. The method according to claim 1, wherein the predefined criteria relating to the electric vehicle is that an authorization has been obtained to move the electric vehicle when connected to the charging station.

11. The method according to claim 10, wherein the predefined criteria relating to the electric vehicle are that the authorization has been obtained to move the electric vehicle when connected to the charging station and that the authorization is still valid.

12. The method according to claim 10, wherein an owner of the electric vehicle and a charging station authority enter into an agreement that authorizes the charging station authority to communicate the virtual key to the electric vehicle when the electric vehicle connects to any charging station affiliated with the charging station authority and the predefined criteria are determined to be satisfied.

13. The method according to claim 1, when the electric vehicle connects to the charging station, further comprising:

authenticating the charging station with the electric vehicle; and

authenticating the electric vehicle with the charging station.

14. The method according to claim 1, after the virtual key has been communicated to the electric vehicle, further comprising:

operating the electric vehicle in the limited operating mode.

15. The method according to claim 14, wherein the virtual key is valid for a predetermined time after the virtual key is communicated to the electric vehicle, and wherein the virtual key expires when the predetermined time elapses, and further comprising:

determining, at the electric vehicle, whether the virtual key has expired.

16. The method according to claim 15, when it is determined that the virtual key has expired, further comprising:

discarding the virtual key to prevent the electric vehicle from being operated in the limited operating mode.

17. A system for authorizing operation of an electric vehicle within boundaries that are defined with respect to a charging station that the electric vehicle is being charged at, comprising:

a computer associated with the charging station, the computer comprising a processor being configured to;

determine whether predefined criteria relating to charging status of the electric vehicle have been satisfied; and

communicate, when the predefined criteria are determined to be satisfied, a virtual key to the electric vehicle that allows the electric vehicle to be operated in a limited operating mode that defines constraints on operating the vehicle, wherein the virtual key authorizes operation of the electric vehicle within the boundaries that are defined with respect to the charging station, and allows the electric vehicle to be operated in the limited operating mode without a physical key or fob being present at the vehicle.

18. A computer associated with a charging station, the computer comprising:

a processor that is configured to generate and communicate a virtual key to an electric vehicle that is being charged at the charging station when predefined criteria relating to charging status of the electric vehicle are determined to have been satisfied,

wherein the virtual key authorizes operation of the electric vehicle within boundaries that are defined with respect to the charging station, and allows the electric vehicle to be operated in a limited operating mode that defines constraints on operating the vehicle.

19. An electric vehicle, comprising:

a processor configured to;

receive a virtual key from a computer associated with a charging station when predefined criteria relating to charging status of the electric vehicle are determined to have been satisfied, wherein the virtual key authorizes operation of the electric vehicle within boundaries that are defined with respect to the charging station, wherein the virtual key defines constraints on operating the electric vehicle that allow the electric vehicle to be operated in a limited operating mode; and

control operation of the electric vehicle according to the constraints on operating the electric vehicle that are defined by the virtual key.