| 摘要 |
PURPOSE: A transmission is provided to determine a backward speed ratio and a forward speed ratio by selectively combining torque transmission devices in three or more combinations. CONSTITUTION: A first, a second, a third, and a fourth planet gear set (14, 16, 18, 20) individually include a first, a second, and a third member. A first, a second, a third, and a fourth mutual connecting member continually connect the planet gear sets to one or more other members. Six torque transmission devices connect one or more members to one or more other members. The six torque transmission devices connect the one or more members to one or more fixing members. |
