Power train for hybrid motor vehicle, has movement transmission track comprising toothed wheels and transmitting movement to powered axle, and additional epicyclic gear train connecting epicyclic drive train to movement transmission track

摘要

The power train has a speed variation device (14) comprising an epicyclic drive train (26) having a sun gear (36) and a ring (50), where the sun gear and the ring are connected to a shaft (12) of a heat engine (10) via controlled clutches (28, 30). A movement transmission track comprises toothed wheels (120, 122), and transmits movement to a powered axle (16). An additional epicyclic gear train connects the epicyclic drive train to the movement transmission track. A coupling surface (130) is carried by an epicyclic gear (96).