CONTROL DEVICE AND CONTROL METHOD FOR VEHICLE

• US 20100121507A1
• Filed: 04/17/2008
• Published: 05/13/2010
• Est. Priority Date: 04/25/2007
• Status: Abandoned Application

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Ohbayashi, Kazuyoshi, Oki, Ryouji, Ishii, Kenichi, Ishikawa, Tetsuhiro, Sawada, Hiroki, Komatsu, Masayuki, Katsuda, Toshihiro
• Application Number:
  US12/450,678
• Publication Number:
  US 20100121507A1
• Time in Patent Office: Days
• US Class Current: 701/22
• CPC Class Codes: B60K 1/02 comprising more than one electric motor
• CPC Class Codes: B60K 6/365 with the gears having orbital motion
• CPC Class Codes: B60K 6/445 Differential gearing distribution type
• CPC Class Codes: B60L 2240/80 Time limits
• 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 53/20 characterised by converters located in the vehicle
• CPC Class Codes: B60L 53/30 Constructional details of charging stations
• CPC Class Codes: B60L 53/67 Controlling two or more charging stations
• CPC Class Codes: B60W 10/08 including control of electric propulsion units, e.g. motors or generators
• 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 20/10 Controlling the power contribution of each of the prime movers to meet required power demand
• CPC Class Codes: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 10/30 Nickel accumulators H01M10/34 takes precedence
• CPC Class Codes: H01M 10/345 Gastight metal hydride accumulators
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H02J 7/1438 in combination with power supplies for loads other than batteries
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• 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 10/92 : Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
• 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

A control device has a coupling determination sensor for detecting external connection of a charge table. When the connection of the charge cable is detected according to a signal from the sensor, the control device activates an electric device connected to a communication line of a charge-time-dedicated power supply system. Since the control device of the invention can activate only the electric device related to the charging while keeping electric devices not related to the charging at rest, and therefore prevents wasteful electric power consumption.

Claims

1. A control device for a vehicle having at least a rotating electric machine as a drive source, said vehicle including a plurality of electric devices, a power storage device supplying an electric power to said rotating electric machine and said plurality of electric devices, and a connection unit connecting a charge cable of an external charging device charging said power storage device, and

said control device comprising:

a first control unit transmitting an activation signal corresponding to an activating operation of said vehicle via a first communication line connected to a predetermined first electric device group in said plurality of electric devices, and performing activation control on said first electric device group; and

a second control unit transmitting an activation signal via a second communication line connected to a predetermined second electric device group, that is included in said plurality of electric devices and related to the charging by said external charging device, and performing activation control on said second electric device group.

2. The control device for the vehicle according to claim 1, further comprising:

a detecting unit detecting a position change of a member operated in charging by said external charging device, wherein

said second control member performs the activation control on said second electric device group when the position change of said member is detected.

3. The control device for the vehicle according to claim 2, wherein

said detecting unit detects the connection of said charge cable to said connection unit.

4. The control device for the vehicle according to claim 1, wherein

said second electric device group includes an electric device connected to said first and second communication lines, and

said electric device is activated based on at least one of the activation signals transmitted via respective said first and second communication lines.

5. The control device for the vehicle according to claim 1, wherein

said second electric device group includes first and second electric devices, and

a local communication line connects said first and second electric devices together.

6. The control device for the vehicle according to claim 1, wherein

said power storage device includes a power storage device on a high voltage side and a power storage device on a low voltage side,

said second electric device group includes an electric device operating in connection with said power storage device on the high voltage side, and

said control device further comprises a load control unit controlling said electric device to reduce a load quantity of the electric load during operation of said electric device when the connection of said charge cable is detected.

7. The control device for the vehicle according to claim 6, wherein

said second electric device group includes a converter charging said power storage device on the low voltage side with the electric power of said power storage device on the high voltage side, and

said load control unit controls said converter to lower an output voltage during the charging of said power storage device on the low voltage side by said converter when the connection of said charge cable is detected.

8. The control device for the vehicle according to claim 6, wherein

said load control unit controls said electric device to stop a function not related to the charging when said electric device operates.

9. The control device for the vehicle according to claim 1, wherein

said power storage device includes a power storage device on a high voltage side and a power storage device on a low voltage side,

the electric devices of said second electric device group operate by receiving the electric power from said power storage device on the low voltage side during said activation control, and

said control device comprises:

a relay changing collectively a state of power supply from said power storage device on the low voltage side to said second electric device group to one of a supply state and a non-supply state;

a position change detecting unit detecting a position change of a member operated in charging by said external charging device; and

an activating operation detecting unit detecting an activating operation of said vehicle, and

said control device controls said relay to change said state of power supply to the supply state when at least one of the position change of said member and the activation operation of said vehicle is detected.

10. The control device for the vehicle according to claim 9, wherein

the electric device of said first electric device group operates by receiving the electric power from said power storage device on the low voltage side during said activation control,

said control device further comprises a relay changing collectively a state of power supply from said power storage device on the low voltage side to said first electric device group to one of a supply state and a non-supply state, and

said control device controls said relay to change said state of power supply to the supply state when the activation operation of said vehicle is detected.

11. A control method for a vehicle having at least a rotating electric machine as a drive source, said vehicle including a plurality of electric devices, a power storage device supplying an electric power to said rotating electric machine and said plurality of electric devices, and a connection unit connecting a charge cable of an external charging device charging said power storage device, and

said control method comprising:

a first control step of transmitting an activation signal corresponding to an activating operation of said vehicle via a first communication line connected to a predetermined first electric device group in said plurality of electric devices, and performing activation control on said first electric device group; and

a second control step of transmitting an activation signal via a second communication line connected to a predetermined second electric device group, that is included in said plurality of electric devices and related to the charging by said external charging device, and performing activation control on said second electric device group.

12. The control method for the vehicle according to claim 11, further comprising:

a detecting step of detecting a position change of a member operated in charging by said external charging device, wherein

said second control step performs the activation control on said second electric device group when the position change of said member is detected.

13. The control method for the vehicle according to claim 12, wherein

said detecting step detects the connection of said charge cable to said connection unit.

14. The control method for the vehicle according to claim 11, wherein

said second electric device group includes an electric device connected to said first and second communication lines, and

said electric device is activated based on at least one of the activation signals transmitted via respective said first and second communication lines.

15. The control method for the vehicle according to claim 11, wherein

said second electric device group includes first and second electric devices, and

a local communication line connects said first and second electric devices together.

16. The control method for the vehicle according to claim 11, wherein

said power storage device includes a power storage device on a high voltage side and a power storage device on a low voltage side,

said second electric device group includes an electric device operating in connection with said power storage device on the high voltage side, and

said control method further comprises a load control step of controlling said electric device to reduce a load quantity of the electric load during operation of said electric device when the connection of said charge cable is detected.

17. The control method for the vehicle according to claim 16, wherein

said second electric device group includes a converter charging said power storage device on the low voltage side with the electric power of said power storage device on the high voltage side, and

said load control step controls said converter to lower an output voltage during the charging of said power storage device on the low voltage side by said converter when the connection of said charge cable is detected.

18. The control method for the vehicle according to claim 16, wherein

said load control step controls said electric device to stop a function not related to the charging when said electric device operates.

19. The control method for the vehicle according to claim 11, wherein

said power storage device includes a power storage device on a high voltage side and a power storage device on a low voltage side,

said power storage device includes a power storage device on a high voltage side and a power storage device on a low voltage side,

the electric device of said second electric device group operates by receiving the electric power from said power storage device on the low voltage side during said activation control,

a relay changing collectively a state of power supply from said power storage device on the low voltage side to said second electric device group to one of a supply state and a non-supply state is arranged between said power storage device on the low voltage side and said second electric device group, and

said control method further comprises:

a position change detecting step of detecting a position change of a member operated in charging by said external charging device;

an activating operation detecting step of detecting an activating operation of said vehicle; and

a step of controlling said relay to change said state of power supply to the supply state when at least one of the position change of said member and the activation operation of said vehicle is detected.

20. The control method for the vehicle according to claim 19, wherein

the electric device of said first electric device group operates by receiving the electric power from said power storage device on the low voltage side during said activation control,

a relay changing collectively a state of power supply from said power storage device on the low voltage side to said first electric device group to one of a supply state and a non-supply state is arranged between said power storage device on the low voltage side and said first electric device group, and

said control method further comprises a step of controlling said relay to change said state of power supply to the supply state when the activation operation of said vehicle is detected.