| 摘要 |
A change-speed transmission comprises: an input member; an output member; a hydrokinetic unit having a pump connected to the input member for simultaneous rotation therewith and a turbine; first and second clutches; a divider in the form of a planetary gear set; and a planetary gear train. The divider has a first, a second and a third rotary element, while, the planetary gear train also has a first, a second and a third rotary element. The first rotary element of the divider is connected to the first rotary element of the gear train for simultaneous rotation therewith, and the second rotary elements are connected to each other through the second clutch. The second or third rotary elements are connectable through a first or a torque split clutch to the input member. The turbine of the hydrokinetic unit is connectable to the other one of said second and third rotary elements. The output member is connected to the third rotary element of the gear train or divider. If the turbine is connected to one of the second or third rotary elements of the divider, the input member is connectable through the first clutch to the other one of said elements of the divider, and the output member is connected to the third rotary element of the gear train. If the output member is connected to the third rotary element of the divider, the turbine is connected to the third rotary element of the gear train; while, the input member is connectable through the first clutch to the second rotary element of the divider. |
