Hydrostatic Regenerative Braking Transmission For Motor Vehicles

A transmission for a vehicle including a driveline powered by first and second prime movers, the vehicle also including a hydrostatic regenerative braking system for transferring energy from the driveline to the second prime mover, the transmission comprising:

• a first rotatable shaft having a first end adapted to be driven by the first prime mover and a second end adapted to be coupled to the driveline;
• a second rotatable shaft selectively drivingly coupled to the first shaft and adapted to drive a hydraulic pump of the second prime mover;
• a planetary gearset including a first member restricted from rotation, a second member and a third member;
• a transfer mechanism including a first sprocket, a second sprocket driven by the second shaft and a flexible member drivingly interconnecting the first and second sprockets;
• and
• a clutch operable to transfer torque between the third member of the planetary gearset and one of the first shaft and the first sprocket, wherein the second member of the planetary gearset is fixed to the other of the first shaft and the first sprocket.