Two-mode compound-split electrically variable transmission
A compound-split electrically variable transmission has two electrical power units, two planetary gearsets, a prime mover, and two selectively engageable torque-transmitting mechanisms. The torque-transmitting mechanisms are selectively engaged to provide a reverse and first range and a second range of operation, wherein the reverse and first range is an input-split range of operation and the second range is a compound-split range of operation. The torque-transmitting mechanisms are simultaneously engaged at an interchange point between the first and second ranges of operation. This interchange point is a synchronous speed interchange point, such that the torque-transmitting mechanisms are engaged and disengaged without slipping forces being transmitted.
General Motors Corporation
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Alan G. Donald Michael R.
Holmes Klemen Schmidt