Patent ID: 9527375
Filing Date: 2016-12-27
CPC Classification: B60K,B60W,F16H,Y02T,Y10S

Claim Text:
1. A powertrain comprising: an engine having a rotatable crankshaft; a transmission having a transmission input member and a transmission output member; wherein the transmission is a continuously variable transmission; wherein the transmission output member is an output pulley shaft; a final drive operatively connected to the transmission output member and including a drive axle; a motor/generator; wherein the motor/generator has a motor shaft; an engine clutch having an engaged state that operatively connects the engine crankshaft with the transmission input member, and having a disengaged state that operatively disconnects the engine crankshaft from the transmission input member; a first torque-transmitting device having 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 having 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; a ring gear mounted on the crankshaft; a pinion gear mounted on the motor shaft; wherein the second torque-transmitting device is a sliding idler gear that meshes with both the ring gear and the pinion gear when moved from a disengaged position to an engaged position to establish the engaged state to thereby transmit torque from the motor/generator to the crankshaft; at least one electronic controller operatively connected to the motor/generator, the engine clutch, and the first and second torque-transmitting devices to control the motor/generator to function as a motor or as a generator, and to control the states of the engine clutch, and the first and second torque-transmitting devices; wherein the powertrain establishes a regenerative braking mode when the first torque-transmitting device is engaged, the second torque-transmitting device is disengaged, and the motor/generator functions as a generator to capture regenerative braking energy; and wherein the powertrain establishes an engine starting mode when the second torque-transmitting device is engaged, the first torque-transmitting device is disengaged, and the motor/generator is controlled to function as a motor to start the engine.