INFINITELY VARIABLE POWER-DERIVED TRANSMISSION WITH TWO OPERATING MODES CONTROLLED BY A CRABOT GAUGE FOR A MOTOR VEHICLE

摘要

An infinitely-variable transmission with double mode power transmission for a motor vehicle, provided with a combustion engine, including a first power transmission path with a composite epicyclic gear train connecting the combustion engine to the vehicle wheels, a second power transmission path with a simple epicyclic gear train, two electric motors providing a continuous speed variator, a second simple epicyclic gear train for mode change, and an engagement/disengagement unit that can block or release a mode-changing body in the second epicyclic gear train, according to the operating mode. The engagement/disengagement body includes a sliding sleeve with a dog tooth, which can be displaced by a hydraulic actuator and with two sets of dog teeth fixed to a mode-changing body in the second epicyclic gear train.