Multi-speed transmission

摘要

A transmission is provided having an input member, an output member, two planetary gear sets, a planetary gear set assembly, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members and the planetary gear set assembly includes a first, second, third and fourth member. The torque transmitting devices include clutches and brakes actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio.

主权项

1. A transmission comprising:
an input member; an output member; a planetary gear set assembly having a first member, a second member, a third member and a fourth member, wherein the second member of the planetary gear set assembly is directly and continuously interconnected with the output member; a first planetary gear set having a first, a second and a third member, and wherein the third member of the first planetary gear set is rotationally fixed to a stationary member, wherein the first member of the first planetary gear set is directly and continuously interconnected with the input member; a second planetary gear set having a first, a second and a third member; a first interconnecting member continuously interconnecting the third member of the planetary gear set assembly with the third member of the second planetary gear set; a second interconnecting member continuously and directly interconnecting the fourth member of the planetary gear set assembly with the second member of the second planetary gear set; and at least six torque transmitting mechanisms each selectively engageable to interconnect at least one of the first, second, third and fourth members of the planetary gear set assembly or at least one of the first, second and third members of the first and second planetary gear sets with another of the first, second, third and fourth members of the planetary gear set assembly, another of the first, second and third members of the first and second planetary gear sets or the stationary member, and wherein the at least six torque transmitting mechanisms are selectively engageable in combinations of at least two to establish a plurality forward speed ratios and at least one reverse speed ratio between the input member and the output member, and the first member of the first planetary gear set is a ring gear.