| 摘要 |
A transmission for a vehicle may include a first planetary gear set, a second planetary gear set, a third, planetary gear set, and a fourth planetary gear set each including three rotary elements, and a plurality of friction members, in which the friction members are connected to at least one or more of the rotary elements of the planetary gear sets and control rotation of the rotary elements. |
| 主权项 |
1. A transmission for a vehicle, comprising:
a first planetary gear set, a second planetary gear set, a third, planetary gear set, and a fourth planetary gear set each including three rotary elements; and a plurality of friction members, wherein the first planetary gear set includes: a first rotary element selectively connected with a third rotary element of the fourth planetary gear set; a second rotary element connected with a second rotary element of the second planetary gear set; and a third rotary element connected with a third rotary element of the second planetary gear set, the second planetary gear set includes: a first rotary element selectively connected with a first rotary element of the third planetary gear set and selectively connected with a second rotary element of the third planetary gear set; a second rotary element connected with a third rotary element of the third planetary gear set; and a third rotary element connected with a first rotary element of the fourth planetary gear set, the third planetary gear set includes: the first rotary element operating as a selectively-fixed element and the second rotary element connected to an input shaft, the fourth planetary gear set includes: the first rotary element selectively connected with the third rotary element of the fourth planetary gear set; a second rotary element connected to an output; and the third rotary element operating as a selectively-fixed element, and the friction members are connected to at least one or more of the rotary elements of the planetary gear sets and control rotation of the rotary elements. |
