| 摘要 |
<p>The device (1') has a main shaft (2) adapted to be connected to a propulsion device e.g. heat engine, of a vehicle, and a secondary shaft (3) adapted to be connected to wheels of the vehicle. A continuous transmission device i.e. continuously variable transmission (5), connects the main shaft and the secondary shaft. A discrete gear ratio (16) has a gear reduction ratio higher than or equal to that of the continuous transmission device such that engine torque is transmitted to the selective wheels by the continuous transmission device or the discrete gear ratio.</p> |
