Power supply connector, vehicle and control method for vehicle

• US 9,434,257 B2
• Filed: 08/29/2012
• Issued: 09/06/2016
• Est. Priority Date: 08/30/2011
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Nishimuta, Takafumi, Kinomura, Shigeki, Ishikawa, Tetsuhiro, Iida, Takahide
• Primary Examiner(s): Deberadinis, Robert
• Application Number:
  US14/241,523
• Publication Number:
  US 20140232182A1
• Time in Patent Office: 1,469 Days
• Field of Search: 307/9.1
• US Class Current: 1/1
• CPC Class Codes: B60L 1/006 to power outlets
• CPC Class Codes: B60L 2210/10 DC to DC converters
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 3/0069 relating to the isolation, e.g. ground fault or leak current
• CPC Class Codes: B60L 3/04 Cutting off the power supply under fault conditions protective devices and circuit arrangements in general H01H; H02H
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 50/61 by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
• 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 53/63 in response to network capacity
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60L 55/00 Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• 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 10/126 : 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]
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

A power supply connector (410) is used to supply electric power from a hybrid vehicle (100) equipped with an engine (160) and a motor generator (130, 135) to a device outside of the vehicle (100). When the power supply connector (410) is connected to an inlet (220) of the vehicle (100), the power supply connector (410) outputs a signal for performing a power supply operation while allowing operation of the engine (160) to an ECU (300) of the vehicle (100).

Claims

1. A power supply connector that is used at the time when electric power from a vehicle is supplied to a device outside of the vehicle via a connecting portion provided on the vehicle, wherein the vehicle includes:

an engine;

a rotating electrical machine driven by the engine to generate electric power; and

a controller that controls a power supply operation to the device outside of the vehicle,

the power supply connector comprising;

a power transfer unit that transfers electric power from the vehicle; and

a signal output unit that outputs a signal to the controller when the power supply connector is connected to the connecting portion, said signal causing the vehicle to perform the power supply operation while allowing operation of the engine.

2. The power supply connector according to claim 1, wherein

the vehicle further includes an electrical storage device, and

the controller supplies the device outside of the vehicle with at least one of electric power from the electrical storage device and the electric power generated by the rotating electrical machine.

3. The power supply connector according to claim 2, wherein

the signal output unit outputs a signal for prohibiting the operation of the engine to the controller, when the vehicle is caused to perform the power supply operation using only the electric power from the electrical storage device.

4. The power supply connector according to claim 2, wherein

the vehicle is able to charge the electrical storage device with electric power outside of the vehicle via a charging cable connected to the connecting portion,

the controller recognizes that a charging connector of the charging cable is connected when the charging connector is connected to the connecting portion and a first resistor provided in the charging connector is coupled to a signal path, said signal path receives a signal indicating that the charging connector is connected,

the signal output unit includes a second resistor having a resistance value different from a resistance value of the first resistor,

the second resistor is coupled to the signal path when the power supply connector is connected to the connecting portion, and

the controller switches between the power supply operation and a charging operation based on a potential of the signal path.

5. The power supply connector according to claim 4, wherein

respective resistance values of two resistors that constitute the first resistor are different from respective resistance values of two resistors that constitute the second resistor, and

the sum of the respective resistance values of the two resistors that constitute the first resistor is substantially equal to the sum of the respective resistance values of the two resistors that constitute the second resistor.

6. The power supply connector according to claim 4, wherein

the controller further determines whether to allow the operation of the engine based on the potential of the signal path.

7. The power supply connector according to claim 2, wherein

the vehicle is able to charge the electrical storage device with electric power outside of the vehicle via a charging cable connected to the connecting portion,

the controller performs a charging operation based on a pilot signal output from the charging cable, and

the signal output unit outputs a signal for performing the power supply operation to the controller via a signal path through which the pilot signal is transmitted.

8. The power supply connector according to claim 7, wherein

the signal output unit further outputs a signal, indicating whether to allow the operation of the engine, to the controller via the signal path through which the pilot signal is transmitted.

9. The power supply connector according to claim 1, wherein

the signal output unit uses power line communication to output a signal for performing the power supply operation to the controller.

10. The power supply connector according to claim 1, further comprising:

an output portion that allows a power supply plug of an external electrical device to be connected and that transfers electric power supplied from the vehicle to the electrical device.

11. The power supply connector according to claim 1, wherein

the vehicle further includes an electrical storage device,

the vehicle is able to charge the electrical storage device with electric power outside of the vehicle via a charging cable having a charging connector connected to the connecting portion,

the power supply connector is also used as the charging connector,

the power supply connector further includes an operating portion, operated by a user, in order to switch between the power supply operation and a charging operation in the vehicle, and

the signal output unit outputs any one of a signal for performing the power supply operation and a signal for performing the charging operation to the controller, based on a state of the operating portion.

12. The power supply connector according to claim 1, wherein

the power supply connector is connected to one end of a cable and transfers electric power, supplied from the vehicle, to an external electrical device via the cable.

13. The power supply connector according to claim 1, wherein

the signal output unit is supplied with a power supply voltage from the vehicle.

14. The power supply connector according to claim 13, wherein

the power supply voltage is supplied via a signal path through which the controller receives a signal for detecting whether the power supply connector is connected.

15. A vehicle that is able to supply electric power to an external device, comprising:

a connecting portion that connects a power supply connector for transferring electric power to the external device;

an engine;

a rotating electrical machine that is driven by the engine to generate electric power; and

a controller that controls a power supply operation to the external device, wherein

the controller supplies the electric power, generated by the rotating electrical machine, to the external device via the connecting portion, when a signal from the power supply connector allows the power supply operation with operation of the engine.

16. The vehicle according to claim 15, further comprising:

an electrical storage device, wherein

the controller supplies the external device with at least one of electric power from the electrical storage device and the electric power generated by the rotating electrical machine.

17. The vehicle according to claim 15 or 16, further comprising:

a power conversion device that converts alternating-current power, generated by the rotating electrical machine, to direct-current power.

18. The vehicle according to claim 15, wherein

the controller determines whether the operation of the engine is required based on a state of the vehicle, and

the controller supplies the electric power, generated by the rotating electrical machine, to the external device via the connecting portion, when the operation of the engine is required.

19. The vehicle according to claim 15, further comprising:

an operating member that is operated by a user and that sets a shift range, wherein

the controller allows the power supply operation with the operation of the engine, when the shift range is set at a predetermined range, and

the controller prohibits the power supply operation with the operation of the engine, when the shift range is set at a range other than the predetermined range.

20. The vehicle according to claim 19, wherein

the predetermined range includes a parking range.

21. A control method for a vehicle, which is used to supply electric power from the vehicle to a device outside of the vehicle via a power supply connector connected to a connecting portion provided on the vehicle, wherein the vehicle includes an engine and a rotating electrical machine that is driven by the engine to generate electric power,

the control method comprising:

receiving a signal output from the power supply connector when the power supply connector is connected to the connecting portion;

generating electric power with the use of the rotating electrical machine driven by the engine based on the signal; and

supplying the electric power generated by the rotating electrical machine to the device outside of the vehicle via the power supply connector.