Multi-speed transmission

摘要

A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. The torque transmitting devices include clutches and brakes including a selectable one-way clutch 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; first, second, third and fourth planetary gear sets, wherein the first, second, and third planetary gear sets each include a first member, a second member, and a third member and the fourth planetary gear set includes only a first member and a second member each corresponding to one of a sun gear and a carrier member, and wherein the input member is continuously connected to the first member of the second planetary gear set; three interconnecting members each connected directly to one of the first, second, and third planetary gear sets and to one other of the first, second, and third planetary gear sets; and seven torque transmitting devices each selectively engageable to interconnect at least one of the first, second, third, and fourth planetary gear sets with at least one other of the first, second, third, and fourth planetary gear sets and a stationary member, and wherein the torque transmitting devices 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.