HYBRID CO-AXIAL SHAFT IN SHAFT TRANSMISSION USING PLANETARY GEAR SET FOR MULTIPLE SOURCES OF TORQUE

摘要

A drive system for a vehicle includes two torque sources, such as engines/motors that are each coupled with the shaft of a power transfer device providing propulsion of the vehicle via a planetary gear system; wherein the drive shaft of the second torque source is hollow and the drive shaft of the first torque source extends within the first drive shaft coaxially to each other and the power transfer device; wherein both drive shafts connect with the planetary gear system; and wherein the first drive shaft and the second drive shaft can optionally interface via one-way bearings to provide a clutchless hybrid propulsion system and vehicle.