Patent ID: 7988586
Filing Date: 2011-08-02
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 wherein the input member is continuously interconnected with the second member of the fourth planetary gear set; a first interconnecting member continuously interconnecting the first member of the first planetary gear set with the third member of the second planetary gear set; a second interconnecting member continuously interconnecting the third member of the first planetary gear set with the third member of the third planetary gear set; a third interconnecting member continuously interconnecting the first member of the second planetary gear set with the first member of the third planetary gear set and the third member of the fourth planetary gear set; six torque transmitting mechanisms each selectively engageable to interconnect at least one of the first, second, and third members of the planetary gear sets with at least another one of the first members, second members, and third members of the planetary gear sets, and a stationary element, and wherein the torque transmitting mechanisms are selectively engageable in combinations of at least three to establish at least ten forward speed ratios and at least one reverse speed ratio between the input member and the output member.