Coupler for electric vehicle charging station

• US 9,352,652 B2
• Filed: 06/29/2012
• Issued: 05/31/2016
• Est. Priority Date: 06/29/2012
• Status: Active Grant

• Current Assignee: Schneider Electric USA, Inc. (Schneider Electric SE)
• Original Assignee: Schneider Electric USA, Inc. (Schneider Electric SE)
• Inventors: Montemayor Cavazos, Marcel, Rodriguez Najera, Gerardo, Herrejon Alvarado, Eduardo
• Primary Examiner(s): Rossoshek, Helen
• Application Number:
  US13/539,147
• Publication Number:
  US 20140002018A1
• Time in Patent Office: 1,432 Days
• Field of Search: 320/109, 320/111, 320/123
• US Class Current: 1/1
• CPC Class Codes: B60L 2240/70 Interactions with external data bases, e.g. traffic centres
• CPC Class Codes: B60L 2240/80 Time limits
• CPC Class Codes: B60L 2250/10 by alarm
• CPC Class Codes: B60L 2250/12 by confirmation, e.g. of the input
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 2250/20 by driver identification
• CPC Class Codes: B60L 2270/32 of electricity
• CPC Class Codes: B60L 2270/34 of parts
• CPC Class Codes: B60L 2270/36 of vehicles
• CPC Class Codes: B60L 3/00 Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption methods or circuit arrangements for monitoring or controlling batteries or fuel cells B60L58/00
• CPC Class Codes: B60L 50/52 characterised by DC-motors
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/18 Cables specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/305 Communication interfaces
• CPC Class Codes: B60L 53/31 Charging columns specially adapted for electric vehicles
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60L 53/665 Methods related to measuring, billing or payment
• CPC Class Codes: H01R 13/6275 Latching arms not integral with the housing H01R13/6276, H01R13/6277, H01R13/6278 take precedence
• CPC Class Codes: H01R 13/6397 with means for preventing unauthorised use
• 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

Systems, methods, devices, and computer-readable media secure a coupler 101 of an electric vehicle charging station 100 by locking the coupler 101 to the electric vehicle charging station 100 or an electric vehicle 210. A locking mechanism is provided within the coupler 101. The locking mechanism may include an actuator 432 configured to move between a lock and unlock position. When the actuator 432 is in the lock position, the coupler 101 may be locked to the charging station 100 or an electric vehicle 210. Whereas, when the actuator 432 is in the unlock position, the coupler 101 may be removed from the charging station 100 or electric vehicle 210. Further, the charging station 100 may include an identification device 437 for determining when to lock or unlock the coupler 101.

Claims

1. A method, comprising:

receiving first identification information comprising a fingerprint scan from a fingerprint reader of a coupler;

transmitting a first signal to unlock the coupler so that the coupler may be removed from a charging station, wherein transmitting the first signal comprises supplying electric power to an actuator within the coupler to move the actuator into an unlock position;

detecting a connection between the coupler and an electric vehicle;

transmitting a second signal to lock the coupler to the electric vehicle in response to detecting the connection to the electric vehicle, wherein transmitting the second signal comprises supplying electric power to the actuator within the coupler to move the actuator into a lock position;

allowing the charging station to charge a battery of the electric vehicle;

determining whether a user is authorized to remove the coupler from the electric vehicle;

transmitting a third signal to unlock the coupler so that the coupler may be removed from the electric vehicle in response to determining that the user is authorized to remove the coupler, wherein transmitting the third signal comprises supplying electric power to the actuator within the coupler to move the actuator into the unlock position;

detecting a connection between the coupler and a charging station receptacle of the charging station; and

transmitting a fourth signal to lock the coupler to the charging station receptacle in response to detecting the connection to the charging station receptacle, wherein transmitting the fourth signal comprises supplying electric power to the actuator within the coupler to move the actuator into the lock position.

2. The method of claim 1, wherein the determining of whether the user is authorized comprises:

receiving second identification information; and

comparing the second identification information with the first identification information,

wherein the user is authorized when the second identification information matches the first identification information.

3. The method of claim 2, wherein the second identification information is received from the fingerprint reader.

5. The method of claim 1, wherein the determining of whether the user is authorized comprises:

receiving second identification information; and

determining whether the second identification information identifies the same user that the first identification information identifies,

wherein the user is authorized when the second identification information and the first identification information identify the same user, and

wherein the first identification information and the second identification information are received from different devices.

6. The method of claim 1, further comprising:

identifying a user based on the first identification information,

wherein determining whether the user is authorized to remove the coupler includes determining whether the user is the identified user.

7. The method of claim 1, wherein the actuator comprises a solenoid within the coupler.

4. A method, comprising:

receiving first identification information;

transmitting a signal to unlock a coupler so that the coupler may be removed from a charging station;

detecting a connection between the coupler and an electric vehicle;

transmitting a signal to lock the coupler to the electric vehicle in response to detecting the connection to the electric vehicle;

allowing a charging of a battery of the electric vehicle;

determining whether a user is authorized to remove the coupler from the electric vehicle, wherein the determining of whether the user is authorized comprises;

receiving second identification information; and

comparing the second identification information with the first identification information, wherein the user is authorized when the second identification information matches the first identification information;

transmitting a signal to unlock the coupler so that the coupler may be removed from the electric vehicle in response to determining that the user is authorized to remove the coupler;

detecting a connection between the coupler and a charging station receptacle of the charging station; and

transmitting a signal to lock the coupler to the charging station receptacle in response to detecting the connection to the charging station receptacle,

wherein the first identification information and the second identification information are received from a common identification device (ID device), and

wherein the ID device is located on the coupler.

8. An electric vehicle charging station, comprising:

a control box configured to house control electronics configured to control an electric power supply for charging an electric vehicle;

a cable connected to the control box, the cable including a plurality of conductors for delivering the electric power supply;

a charging station receptacle located on an outside of the control box; and

a coupler arranged at an end of the cable, the coupler comprising a fingerprint reader incorporated into a button and a locking mechanism configured to lock the coupler to the electric vehicle, to lock the coupler to the charging station receptacle, and to unlock the coupler in response to a signal indicating that a user has been authorized to remove the coupler, wherein the locking mechanism comprises an actuator, within the coupler, that is configured to move between a lock position and an unlock position in response to electrical signals provided by the electric vehicle charging station.

9. The electric vehicle charging station of claim 8, wherein the locking mechanism further comprises:

a snap configured to move in response to movement of the button and to latch onto the charging station receptacle and the electric vehicle,

wherein the actuator is configured to lock the coupler to the charging station or the electric vehicle by preventing a user from moving the snap.

10. The electric vehicle charging station of claim 8, further comprising:

a processor; and

memory storing computer-executable instructions that, when executed by the processor, cause the electric vehicle charging station to;

receive identification information obtained by the fingerprint reader;

determine whether the identification information identifies a user who is authorized to remove the coupler; and

output the signal to the actuator to unlock the coupler when determining that the user is authorized to remove the coupler.

11. The electric vehicle charging station of claim 8, wherein the actuator comprises a solenoid.

12. The electric vehicle charging station of claim 8, wherein the coupler further comprises:

a snap configured to latch onto a groove of the electric vehicle; and

a lever configured to raise the snap above the groove.

13. The electric vehicle charging station of claim 8, wherein the coupler further comprises:

a stopper configured to move between a stopper lock position and a stopper unlock position in response to movement of the actuator, wherein the stopper physically blocks the button from moving when the stopper is in the stopper lock position.

14. A coupler, comprising:

a handle including a face having contacts therein for electrically connecting conductors in a cable of an electric vehicle charging station to an electric vehicle inlet;

a button attached to the handle and configured to move between a first position and a second position;

a fingerprint reader incorporated into the button; and

a locking mechanism configured to lock the coupler to a receptacle of the electric vehicle charging station, to lock the coupler to the electric vehicle inlet, and to unlock the coupler in response to a signal indicating that the coupler is authorized to be removed, wherein the locking mechanism comprises an actuator, within the coupler, that is configured to move between a lock position and an unlock position in response to electrical signals provided by the electric vehicle charging station.

15. The coupler of claim 14, wherein the locking mechanism further comprises:

a snap configured to move in response to movement of the button and to latch onto the receptacle of the electric vehicle charging station and the electric vehicle inlet,

wherein the actuator is configured to move into the lock position to block the button from moving.

16. The coupler of claim 15, further comprising:

a communication wire configured to receive the electrical signals from the electric vehicle charging station via the cable and to provide the electrical signals to the actuator to control movement of the actuator.

17. The coupler of claim 15, further comprising:

a communication wire configured to transmit identification information, which is obtained by the fingerprint reader, to the electric vehicle charging station,

wherein the actuator is within the handle and responsive to the fingerprint reader.

18. The coupler of claim 14, further comprising:

a stopper configured to move between a stopper lock position and a stopper unlock position in response to movement of the actuator, wherein the stopper physically blocks the button from moving into the second position when the stopper is in the stopper lock position.

19. The coupler of claim 14, wherein the actuator comprises a solenoid.

20. The coupler of claim 14, further comprising a snap configured to latch onto a groove of the electric vehicle.