| 摘要 |
The present invention provides a hybrid motive power vehicle capable of smooth switching from an electric motor to an internal combustion engine without torque fluctuation. A buffer clutch 5 is arranged in a power train system 3 common to the electric motor 1 and the internal combustion engine 2. When the power source is switched from the electric motor 1 to the internal combustion engine 2, the buffer clutch is set to a half-clutch state, so that an output torque fluctuation which may be generated at the upstream side of the power train system upon switching of the power source will not be transmitted to a differential gear 6 and drive wheels.
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