Patent ID: 8439791

Claim:
A multi-speed transmission comprising: an input member; an output member; a stationary member; a first and a second compound planetary gear set; wherein the first compound planetary gear set has a first, a second, a third, a fourth, and a fifth member; wherein the second compound planetary gear set has a first, a second, a third, and a fourth member; wherein the members of the planetary gear sets are sun gear members, ring gear members and carrier members; wherein the first member of the second compound planetary gear set is continuously connected for common rotation with the output member; an interconnecting member continuously connecting the first member of the first planetary gear set for common rotation with the second member of the second planetary gear set; and seven torque-transmitting mechanisms selectively engagable to interconnect respective ones of the members of the first and the second compo and planetary gear sets with the input member, the stationary member or respective ones of the members of the second compound planetary gear set, the seven torque-transmitting mechanisms being engagable in combinations of three to establish up to fifteen forward speed ratios and a reverse speed ratio between the input member and the output member.