A vehicle includes a prime mover, a first output shaft, a second output shaft and a planetary gear assembly. The planetary gear assembly includes a sun gear, a ring gear and a plurality of planetary gears supported between the ring gear and the sun gear by a carrier. One of the sun gear and the ring...http://www.google.fr/patents/US7140461?utm_source=gb-gplus-shareBrevet US7140461 - Power splitting vehicle drive system
