Hybrid powertrain

摘要

A powertrain includes an engine, electric motor, disconnect clutch and a transmission. The transmission has an input member, an output member, at least four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes actuatable in combinations of three to establish a plurality of forward gear ratios and at least one reverse gear ratio. The electric motor is connected to the input of the transmission and the engine is selectively connected to the input member through the disconnect clutch. A controller is configured to control the operation of the powertrain.

主权项

1. A powertrain of a vehicle, the powertrain comprising:
an engine for generating an engine driving torque; a transmission having an input member and an output member, wherein the transmission further includes: first, second, third and fourth planetary gear sets each having first, second and third members; a first interconnecting member continuously interconnecting the carrier member of the first planetary gear set with the ring gear of the third planetary gear set; a second interconnecting member continuously interconnecting the ring gear of the first planetary gear set with the carrier member of the second planetary gear set; a third interconnecting member continuously interconnecting the ring gear of the second planetary gear set with the carrier member of the third planetary gear set and the sun gear of the fourth planetary gear set; and six torque transmitting mechanisms wherein three of the six torque transmitting mechanisms are each selectively engageable to interconnect at least one of the first, second and third members with at least one other of the first, second, third members and wherein three of the six torque transmitting mechanisms are each selectively engageable to interconnect at least one of the first, second and third members with a stationary member, and wherein the six torque transmitting mechanisms are selectively engageable in combinations of at least three to establish a plurality of forward speed ratios and at least one reverse speed ratio between the input member and the output member; and a disconnect clutch connected to the engine and the input member of the transmission for selectively connecting the engine to the input member for providing the engine driving torque to the input member of the transmission; and an electric motor for generating an electric motor driving torque, wherein the electric motor is connected to the input member of the transmission for selectively providing the electric motor driving torque to the input member of the transmission.