Control apparatus for vehicle and vehicle

Patent metadata

Field	Value
Publication number	US-9718372-B2
Application number	US-201314440929-A
Country	US
Kind code	B2
Filing date	Oct 2, 2013
Priority date	Nov 9, 2012
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

An ECU sets a voltage of an inverter side in an external supply mode to be less than a voltage of the inverter side when a first MG supplies the electric power equal to the electric power in the external supply mode in a traveling generation mode.

First claim

The invention claimed is:

1. A vehicle comprising:
an electric power generator;
an electric power storage device;
an internal combustion engine configured to travel the vehicle and to drive the electric power generator;
an electric circuit configured to output electric power generated by the electric power generator or electric power output from the electric power storage device to a power recipient outside of the vehicle;
a drive circuit configured to drive the electric power generator;
a boost converter disposed between the electric power storage device and the electric power generator;
an inverter disposed between the boost converter and the electric power generator; and
an electronic control unit configured to set the vehicle into a first mode or a second mode, the first mode being a mode in which electric power is generated in the electric power generator by the internal combustion engine during parking of the vehicle and the generated electric power is supplied to the power recipient outside of the vehicle, the second mode being a mode in which electric power is generated in the electric power generator by the internal combustion engine during traveling of the vehicle, and the electronic control unit being configured to limit an operation of the boost converter in the first mode by reducing electric power loss attributable to boosting when the generated electric power is supplied to the power recipient outside of the vehicle.

2. The vehicle according to claim 1 ,
wherein the electronic control unit is configured to set a first voltage to be less than a second voltage, the first voltage is a voltage of a drive circuit side in the first mode, and the second voltage is a voltage of the drive circuit side in the second mode, when the electric power generator supplies the electric power equal to an electric power in the first mode.

3. The vehicle according to claim 2 ,
wherein the electronic control unit is configured to execute the boosting operation by the boost converter in the second mode regardless of electric power required to be generated by the electric power generator, and
wherein the electronic control unit is configured to stop the boosting operation by the boost converter in the first mode in a case where the electric power required to be generated by the electric power generator is equal to or less than a predetermined value.

4. The vehicle according to claim 3 ,
wherein the electric power required to be generated by the electric power generator is electric power obtained by subtracting a second electric power from a first electric power, in a case where the supply of the first electric power is requested from the power recipient outside of the vehicle and the second electric power is supplied from the electric power storage device to the outside power recipient in the first mode.

5. The vehicle according to claim 3 ,
wherein the electric power required to be generated by the electric power generator is electric power obtained by adding a first electric power to a second electric power, in a case where the supply of the first electric power is requested from the power recipient outside of the vehicle and the second electric power is supplied from the electric power generator to the electric power storage device in the first mode.

6. The vehicle according to claim 3 ,
wherein the electric power required to be generated by the electric power generator is a first electric power, in a case where the supply of the first electric power is requested from the power recipient outside of the vehicle, no electric power is supplied from the electric power storage device to the power recipient outside of the vehicle, and no electric power is supplied from the electric power generator to the electric power storage device in the first mode.

7. The vehicle according to claim 3 ,
wherein the electronic control unit is configured to execute the boosting operation by the boost converter in a case where the electric power required to be generated by the electric power generator exceeds the predetermined value in the first mode, and
wherein the electronic control unit is configured to set a third voltage to be less than a fourth voltage, in a case where a voltage set on the drive circuit side by the boosting operation in the first mode is lower than an upper limit value of boosting by the voltage conversion device,
the third voltage is a voltage set on the drive circuit side by the boosting operation in the first mode,
the fourth voltage is a voltage set on the drive circuit side by the boosting operation of the boost converter in the second mode, when the electric power generator supplies the electric power equal to the electric power in the first mode.

8. The vehicle according to claim 3 ,
wherein the predetermined value is electric power that the electric power generator can generate without boosting.

9. The vehicle according to claim 1 ,
wherein the electronic control unit is configured to stop a boosting operation by the boost converter in the first mode.

10. A control apparatus for a vehicle including an electric power generator, an electric power storage device, an internal combustion engine configured to travel the vehicle and to drive the electric power generator, an electric circuit configured to output electric power generated by the electric power generator or electric power output from the electric power storage device to a power recipient outside of the vehicle, a drive circuit configured to drive the electric power generator, a boost converter disposed between the electric power storage device and the electric power generator, and an inverter disposed between the boost converter and the electric power generator,
the control apparatus comprising:
an electronic control unit configured to set the vehicle into a first mode or a second mode, the electronic control unit being configured to limit an operation of the boost converter in the first mode by reducing electric power loss attributable to boosting when the generated electric power is supplied to the power recipient outside of the vehicle, the first mode being a mode in which electric power is generated in the electric power generator by the internal combustion engine during parking of the vehicle and the generated electric power is supplied to the power recipient outside of the vehicle, and the second mode being a mode in which electric power is generated in the electric power generator by the internal combustion engine during traveling of the vehicle.

Assignees

• Teraya Ryuta
• Toyota Motor Co Ltd

Inventors

• Teraya Ryuta

Classifications

• B60L2270/34

  of parts · CPC title

• B60W10/08

  including control of electric propulsion units, e.g. motors or generators · CPC title

• Y04S10/126

  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 title

• B60L55/00

  Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements · CPC title

• Y04S30/14

  Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing · CPC title