A multi-speed transmission having an input shaft driven by the engine, an output shaft connected to the driveline, an electric motor, a planetary geartrain driven by one or both of the engine and the electric motor, a plurality of power-operated clutches operable for selectively engaging components of...http://www.google.fr/patents/US6716126?utm_source=gb-gplus-shareBrevet US6716126 - Hybrid drive system for motor vehicle with powershift transmission
Hybrid drive system for motor vehicle with powershift transmission