| 摘要 |
A hybrid electro-mechanical transmission connectable with multiple power sources for launching and propelling a vehicle includes an output member and a stationary member. The transmission also includes a first and second planetary gear sets, and two members of the first planetary gear set are operatively connected to two members of the second planetary gear set, and a torque-transmitting device. The power sources include an engine, a first motor/generator and a second motor/generator. The engine and the second motor/generator are each operatively connected to the first planetary gear set, and the first motor/generator and the output member are each operatively connected to the second planetary gear set. Furthermore, the torque-transmitting device is engageable to ground the engine to the stationary member such that the transmission provides first and second drive modes for launching and propelling the vehicle.
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