Patent ID: 8197375

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