VEHICLE

• US 20120274277A1
• Filed: 01/18/2010
• Published: 11/01/2012
• Est. Priority Date: 01/18/2010
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Masuda, Tomokazu, Ito, Takahiro
• Granted Patent: US 9,257,867 B2
• Time in Patent Office: Days
• US Class Current: 320/109
• CPC Class Codes: B60L 1/00 Supplying electric power to auxiliary equipment of vehicles circuit arrangements for charging batteries H02J7/00
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• 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 2240/34 Cabin temperature
• 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 53/14 Conductive energy transfer
• CPC Class Codes: B60L 53/20 characterised by converters located in the vehicle
• CPC Class Codes: H02J 7/007 Regulation of charging or discharging current or voltage
• CPC Class Codes: H02J 7/04 Regulation of charging current or voltage
• 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

Abstract

An externally chargeable vehicle which is charged with electric power from an external power supply includes an HV-ECU for controlling a power storage device during any of operation of the vehicle and external charging, and a PLG-ECU for controlling a charging device during external charging. With such a configuration, running and charging can be controlled while a function of the HV-ECU for controlling operation of the vehicle and a function of the PLG-ECU for external charging is prevented from becoming redundant.

Claims

1. A vehicle externally chargeable, which is charged with electric power from an external power supply, comprising:

a chargeable power storage device;

a first control device for controlling said power storage device during any of operation of said vehicle and external charging;

a charging device for charging said power storage device with electric power from said external power supply;

a second control device for controlling said charging device; and

a drive portion configured to generate drive force for said vehicle with electric power from said power storage device, wherein

when said vehicle is to be operated, said first control device is started up as it is supplied with power in response to a signal indicating start of operation of said vehicle, and switches between start-up and stop of said second control device by controlling power supply to said second control device in accordance with need for control by said second control device.

2. The vehicle according to claim 1, wherein

said first control device monitors a state of charge of said power storage device, and

said second control device controls said charging device based on a signal in connection with said state of charge received from said first control device.

3. The vehicle according to claim 1, wherein

during said external charging, said second control device is started up as it is supplied with power in response to a signal indicating connection with said external power supply and starts up said first control device by causing power supply to said first control device.

5. The vehicle according to claim 3, further comprising:

an auxiliary battery; and

a first power supply relay (IGCT) controlled by said first control device, for switching between supply and cut-off of electric power from said auxiliary battery, wherein

said first control device is connected to said auxiliary battery with said first power supply relay (IGCT) being interposed.

6. The vehicle according to claim 5, further comprising a second power supply relay (PIMR) controlled by said second control device for switching between supply and cut-off of electric power from said auxiliary battery, wherein

said second control device and said charging device are connected to said auxiliary battery with said second power supply relay (PIMR) being interposed.

7. The vehicle according to claim 5, further comprising a second power supply relay (PIMR) controlled by said second control device, for switching between supply and cut-off of electric power from said auxiliary battery, wherein

said second control device is connected to said auxiliary battery with said first power supply relay (IGCT) being interposed, and

said charging device is connected to said auxiliary battery with said second power supply relay (PIMR) being interposed.

4. (canceled)

8. (canceled)

9. The vehicle according to claim I, further comprising a switch (CHR) interposed in a power line connecting said charging device and said power storage device to each other, wherein

said first control device starts up said second control device when adhesion of a contact of said switch (CHR) is to be detected and stops said second control device when detection of adhesion of the contact of said switch (CHR) is completed.