| 摘要 |
A family of transmission mechanisms having at least six forward speeds wherein each family member includes three planetary gearsets (20,30,40), five torque transmitting mechanisms (50,52,54,56,58), and three interconnecting members (70,72,74). The planetary gear sets (20,30,40) each have three members (sun gear member, ring gear member, and planet carrier assembly member). The interconnecting members (70,72,74) provide continuous interconnection between the members of the planetary gearsets (20,30,40). An output shaft (19) is continuously interconnected with at least one member of one of the planetary gearsets (20). An input shaft (17) is selectively interconnectable with members of the planetary gearsets (20,30,40) through three of the torque transmitting mechanisms (50,52,54) (clutches). The two other torque transmitting mechanisms (56,58) (clutches or brakes) selectively interconnect members of the planetary gear sets (20,30,40) or selectively interconnect a housing (60) with at least one member of the planetary gearsets (20,30,40). The torque transmitting mechanisms are selectively engageable in combinations of two to establish at least six forward speed ratios and one reverse speed ratio between the input shaft (17) and the output shaft (19). <IMAGE> |
