Hybrid transmission arrangement having a motor damper

摘要

An electric motor damping module includes an electric motor, a motor damper continuously interconnected with the electric motor, and an input member continuously interconnected with the motor damper. A transmission includes these elements, plus an output member, first, second, and third planetary gear sets each having first, second and third members, a first interconnecting member continuously interconnecting the third member of the first planetary gear set with the second member of the second planetary gear set, a second interconnecting member continuously interconnecting the second member of the first planetary gear set and the output member with the third member of the third planetary gear set, and a third interconnecting member continuously interconnecting the third member of the second planetary gear set with the second member of the third planetary gear set. The transmission also includes six torque transmitting mechanisms and a hydraulic pump. A sealing assembly is also provided.

主权项

1. A transmission comprising:
an input member; an output member; first, second, and third planetary gear sets each having first, second and third members; a first interconnecting member continuously interconnecting the third member of the first planetary gear set directly with the second member of the second planetary gear set; a second interconnecting member continuously interconnecting the second member of the first planetary gear set and the output member directly with the third member of the third planetary gear set; a third interconnecting member continuously interconnecting the third member of the second planetary gear set directly with the second member of the third planetary gear set; six torque transmitting mechanisms each selectively engageable to interconnect at least one of the first, second, and third members of one of the first, second, and third planetary gear sets with at least another of the first, second, and third members of one of the first, second, and third planetary gear sets or a stationary transmission case member; a hydraulic pump for providing a supply of pressurized hydraulic fluid to the transmission, the hydraulic pump continuously interconnected with the first member of the second planetary gear set; an electric motor and a motor damper, the electric motor continuously interconnected with the first member of the second planetary gear set through the motor damper; a bell housing surrounding the electric motor; and a sealing assembly having a seal and an end plate, wherein the sealing assembly, the bell housing, and the transmission case member cooperate to define a sealed chamber, the electric motor being sealed within the sealed chamber to allow the electric motor to be cooled by the hydraulic fluid; wherein the torque transmitting mechanisms are selectively engageable to establish a plurality of forward speed ratios and at least one reverse speed ratio between the input member and the output member.