| 摘要 |
First and second input clutches (62,63) selectively interconnect an input shaft (17) with the ring gear members (24,44) of a first planetary gear set (20) and a third planetary gear set (40), respectively. The input clutches and eight torque transmitting mechanisms (64-71) are engaged in three combinations to provide six forward speed ratios and one reverse speed ratio. A first interconnecting member (72) interconnects sun gear members (22,32) of first planetary gear set and second planetary gear set (30). A second interconnecting member (74) interconnects the ring gear member (34) of second planetary gear set with the sun gear member (42) of third planetary gear and with an output shaft (19). The first torque transmitting mechanism interconnects a member of first or second planetary gear set with a stationary member. Second and third torque transmitting mechanisms interconnect members of first and second planetary gear sets with other members of first and second planetary gear sets, or with first input clutch. The fourth, fifth, sixth, and seventh torque transmitting mechanisms interconnect members of third planetary gear set with members of fourth planetary gear set (50). An eighth torque transmitting mechanism interconnects a member of first or second planetary gear set with another member of first or second planetary gear set, or with stationary member. |
