Patent ID: 7575529
Filing Date: 2009-08-18
Classification: B60K,B60W,F16H,Y02T,Y10S

Abstract:
1. A transmission for a vehicle with an engine comprising: an input member for receiving power from the engine; an output member; a motor/generator; a differential gear set having a first, a second, a third and a fourth gear element operatively interconnected with one another; wherein said input member and said motor/generator provide power to said output member via said first and second gear elements respectively; a plurality of intermeshing gears including a reversing gear and gears connected for rotation with said output member; a plurality of selectively engagable torque-transmitting mechanisms; first and second concentric transfer shafts connected to said third and fourth gear elements, respectively, for common rotation at the same speed therewith, and each operatively connectable with said output member via different ones of said intermeshing gears by engagement of different selected ones of said torque-transmitting mechanisms, thereby forming selectable first and second power paths, respectively, between said third and fourth gear elements, respectively, and said output member; and wherein the transmission provides multiple operating modes including an electrically variable reverse operating mode utilizing said reversing gear.