| 摘要 |
An improved drive unit for a vehicle having an internal combustion engine, an automatic transmission and a clutch comprising a servo-powered mechanical coupling part and a fluid coupling part is disclosed. The fluid coupling part serves as the flywheel for the engine. An auxiliary starting motor rotates the flywheel to a speed sufficient to start the internal combustion engine when the accelerator pedal is depressed, thereby closing the mechanical coupling part and connecting the flywheel with the engine crankshaft. When the accelerator pedal is released the mechanical coupling part opens to stop the engine in all engine-braking phases, thereby maximizing fuel conservation.
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