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US 7,351,182 B2Granted
Drive apparatus for hybrid vehicle and control method thereof
AssigneeAisin Aw Co., Ltd.
InventorYasuhiko Kobayashi
Life of this patent
Estimating the term…
Abstract
A drive apparatus includes a motor, a first clutch that transmits and cuts off driving force between the motor and an engine, a second clutch that transmits and cuts off driving force to a wheel side from either or both of the motor and the engine, and a control device that performs operation control for the motor, the first clutch and the second clutch. If there is an engine start request during driving of the wheel by the motor, the control device starts the engine by performing the operation control for the motor, the first clutch and the second clutch based upon control patterns that differ depending on a rotational speed of the motor that is directly or indirectly detected.
Claims20
A drive apparatus for a hybrid vehicle, comprising:
- a motor;
- a first clutch that transmits and cuts off driving force between the motor and an engine;
- a second clutch that transmits and cuts off driving force to a wheel side from one or both of the motor and the engine;
- and
- a control device that performs operation control for the motor, the first clutch and the second clutch, wherein:
- the control device performs a control to start the engine by performing the operation control for the motor, the first clutch and the second clutch based upon control patterns that differ depending on a rotational speed of the motor that is directly or indirectly detected at a time when there is an engine start request during driving of the wheel by the motor, and
- the second clutch transmits the driving force of the motor to the wheel when the second clutch is fully engaged.
4 more elements
A drive apparatus for a hybrid vehicle, comprising:
- a motor;
- a first clutch that transmits and cuts off driving force between the motor and an engine;
- a second clutch that transmits and cuts off driving force to a wheel side from one or both of the motor and the engine;
- and
- a control device that performs operation control for the motor, the first clutch and the second clutch, wherein:
- the control device performs a control to start the engine with the second clutch in a released state if a rotational speed of the motor is less than a predetermined threshold when there is an engine start request during driving of the wheel by the motors,
- the second clutch transmits the driving force of the motor to the wheel when the second clutch is fully engaged,
- the rotational speed of the motor is detected at a time when there is the engine start request, and
- the control device performs the control to start the engine based upon control patterns that differ depending on the rotational speed of the motor.
6 more elements
A drive apparatus for a hybrid vehicle, comprising:
- a motor;
- a first clutch that transmits and cuts off driving force between the motor and an engine;
- a second clutch that transmits and cuts off driving force to a wheel side from one or both of the motor and the engine;
- and
- a control device that performs operation control for the motor, the first clutch and the second clutch, wherein:
- the control device performs a control to start the engine when there is an engine start request during driving of the wheel by the motor,
- the second clutch is released and the first clutch is engaged if a rotational speed of the motor is less than a predetermined threshold, and the rotational speed of the motor is set equal to or greater than a rotational speed at which the engine can be started,
- following starting of the engine, the first clutch is released and the second clutch is engaged,
- the second clutch transmits the driving force of the motor to the wheel when the second clutch is fully engaged,
- the rotational speed of the motor is detected at a time when there is the engine start request, and
- the control device performs the control to start the engine based upon control patterns that differ depending on the rotational speed of the motor.
8 more elements
A control method of a drive apparatus for a hybrid vehicle which comprises a motor;
- a first clutch that transmits and cuts off driving force between the motor and an engine;
- and a second clutch that transmits and cuts off driving force to a wheel side from one or both of the motor and the engine, the control method comprising:
- starting the engine when there is an engine start request during driving of the wheel by the motor by releasing the second clutch and engaging the first clutch if a rotational speed of the motor is less than a predetermined threshold, and then setting the rotational speed of the motor equal to or greater than a rotational speed at which the engine can be started;
- and
- following starting of the engine, releasing the first clutch and engaging the second clutch, wherein:
- the second clutch transmits the driving force of the motor to the wheel when the second clutch is fully engaged,
- the rotational speed of the motor is detected at a time when there is the engine start request, and
- the control to start the engine is performed based upon control patterns that differ depending on the rotational speed of the motor.
5 more elements
Dependencies are inferred from the claim text.