Drive device for hybrid vehicle
AssigneeFuji Jukogyo Kabushiki Kaisha
InventorMasatoshi Ishikawa
Life of this patent
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Abstract
A drive device for a hybrid vehicle is provided with an engine and a motor generator. A one-way clutch is provided between the engine and the motor generator. Power is transmitted from the engine to the motor generator, while power from the motor generator to the engine is blocked. As a result, the electric motor can be operated without operating the engine. Furthermore, a torque converter is connected to the motor generator, and the engine is connected to the torque converter via a starting clutch. As a result, if a one-way clutch is provided, the motor generator can serve as a starter motor.
Claims9
A drive device for a hybrid vehicle that has an engine and an electric motor connected to a drive wheel, the drive device comprising:
- a one-way clutch that is disposed between the engine and the electric motor, connects the engine and the electric motor when the engine speed reaches to the motor speed, and disconnects the engine and the electric motor when the engine speed falls below the motor speed;
- and
- a starting clutch that is disposed between the engine and the electric motor and is switched between a fastened state for connecting the engine and the electric motor and a released state for disconnecting the engine and the electric motor;
- wherein upon motor traveling and regenerative braking, the engine is disconnected from the electric motor by the one-way clutch, and upon engine startup, the starting clutch is engaged so as to connect the engine to the electric motor.
Dependencies are inferred from the claim text.