Vehicle control apparatus

Patent metadata

Field	Value
Publication number	US-2016368474-A1
Application number	US-201615180880-A
Country	US
Kind code	A1
Filing date	Jun 13, 2016
Priority date	Jun 18, 2015
Publication date	Dec 22, 2016
Grant date	—

Abstract

A vehicle control apparatus having an engine and an electric motor includes a clutch, a first travel controller, a second travel controller, and a motor controller. The clutch is disposed in a power transmission path that couples the engine and driving wheels to each other. The first travel controller executes a motor travel in which the driving wheels are driven by the electric motor in a state where the clutch is disengaged to decouple the engine from the driving wheels, and the engine is stopped. The second travel controller executes a cranking travel in which the clutch is engaged while a fuel injection of the engine is stopped in a state in which the motor travel is executed, and the engine is rotated during traveling. The motor controller increases an output torque of the electric motor when a travel mode switches from the motor travel to the cranking travel.

First claim

1 . A vehicle control apparatus including an engine and an electric motor, the apparatus comprising:
a clutch that is disposed in a power transmission path that couples the engine and driving wheels; a first travel controller that executes a motor travel in which the driving wheels are driven by the electric motor in a state where the clutch is disengaged to decouple the engine from the driving wheels, and the engine is stopped; a second travel controller that executes a cranking travel in which the clutch is engaged while a fuel injection of the engine is stopped in a state in which the motor travel is executed, and the engine is rotated during traveling; and a motor controller that increases an output torque of the electric motor when a travel mode switches from the motor travel to the cranking travel.

2 . The vehicle control apparatus according to claim 1 , wherein
the motor controller calculates a target torque of the electric motor on the basis of the output torque of the electric motor and a torque capacity of the clutch, and the second travel controller permits the cranking travel if the target torque falls below a predetermined value, and prohibits the cranking travel if the target torque exceeds the predetermined value.

3 . The vehicle control apparatus according to claim 1 , further comprising:
a transmission mechanism that is disposed between the power transmission path that couples the engine and the driving wheels; and a transmission controller that controls the transmission mechanism to accelerate when the travel mode switches from the motor travel to the cranking travel.

4 . The vehicle control apparatus according to claim 2 , further comprising:
a transmission mechanism that is disposed between the power transmission path that couples the engine and the driving wheels; and a transmission controller that controls the transmission mechanism to accelerate when the travel mode switches from the motor travel to the cranking travel.

5 . The vehicle control apparatus according to claim 1 , further comprising a vacuum booster that is coupled to an intake pipe of the engine.

6 . The vehicle control apparatus according to claim 2 , further comprising a vacuum booster that is coupled to an intake pipe of the engine.

7 . The vehicle control apparatus according to claim 3 , further comprising a vacuum booster that is coupled to an intake pipe of the engine.

8 . The vehicle control apparatus according to claim 4 , further comprising a vacuum booster that is coupled to an intake pipe of the engine.

9 . The vehicle control apparatus according to claim 1 , further comprising a compressor that is coupled to a crank shaft of the engine.

10 . The vehicle control apparatus according to claim 2 , further comprising a compressor that is coupled to a crank shaft of the engine.

11 . The vehicle control apparatus according to claim 3 , further comprising a compressor that is coupled to a crank shaft of the engine.

12 . The vehicle control apparatus according to claim 4 , further comprising a compressor that is coupled to a crank shaft of the engine.

13 . The vehicle control apparatus according to claim 5 , further comprising a compressor that is coupled to a crank shaft of the engine.

14 . The vehicle control apparatus according to claim 6 , further comprising a compressor that is coupled to a crank shaft of the engine.

15 . The vehicle control apparatus according to claim 7 , further comprising a compressor that is coupled to a crank shaft of the engine.

16 . The vehicle control apparatus according to claim 8 , further comprising a compressor that is coupled to a crank shaft of the engine.

Assignees

• Fuji Heavy Ind Ltd

Inventors

• Komuro Masaki

Classifications

• B60W2510/083

  Torque · CPC title

• B60W2710/083

  Torque · CPC title

• B60W10/08 Primary

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

• B60W20/10 Primary

  Controlling the power contribution of each of the prime movers to meet required power demand · CPC title

• B60W2710/027

  Clutch torque · CPC title