Quinn Law Group, PLLC
Powertrain with transmission-based motor/generator for engine starting and regenerative braking modes
A powertrain is provided that has an engine with a rotatable crankshaft. The powertrain has a transmission with a transmission input member and a transmission output member. A final drive is operatively connected to the transmission output member and includes a drive axle. An engine clutch has an engaged state that operatively connects the engine crankshaft with the transmission input member, and has a disengaged state that operatively disconnects the engine crankshaft from the transmission input member. A motor/generator is provided and a first torque-transmitting device has a selectively engaged state in which the first torque-transmitting device transmits torque between the motor/generator and the transmission output member independent of the engine, the crankshaft, and the engine clutch. A second torque-transmitting device has a selectively engaged state in which the second torque-transmitting device transmits torque between the motor/generator and the crankshaft independent of the first torque-transmitting device and the engine clutch.
GM Global Technoogy Operations LLC
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Alan G. Roger A.
Holmes Clark