Patent ID: 8167770
Filing Date: 2012-05-01
Classification: F16H

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