Patent ID: 7942776
Filing Date: 2011-05-17
Classification: B60K,B60L,B60W,F16H,Y02T

Abstract:
1. An electrically variable transmission (EVT) comprising: an input member that is connectable to an engine; an output member; a stationary member; first and second motor/generators; a first and a second planetary gear set each having respective first, second, and third members; and first and a second torque-transmitting mechanisms that are selectively engagable alone or in different combinations to connect one of said members of one of said first and said second planetary gear sets to said stationary member or to a member of the other of said first and said second planetary gear sets to thereby establish a fixed ratio electric-only mode, a low-range input split mode, a high-range compound split mode, and a neutral mode; wherein engagement of both of said first and said second torque-transmitting mechanisms establishes said electric-only mode.