Multi-stage auto transmission for vehicle
AssigneeHyundai Motor Company
InventorsMyeong-Hoon Noh, Jae-Chang Kook, Won-Min Cho, Seong-Wook Ji, Kang-Soo Seo, Seong-Wook Hwang
Life of this patent
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Abstract
A multi-stage auto transmission for a vehicle may include first, second, third and fourth planetary gear sets each including first, second and third rotating elements, friction members including first, second and third clutches and first, second and third brakes, an input shaft to which rotation power is inputted, and an output shaft from which the rotation power is outputted. By selectively or continuously connecting the rotating elements of the planetary gear sets to the input shaft, the output shaft or each other, the multi-stage auto transmission implements ten forward speeds and one reverse speed.
Claims9
A multi-stage auto transmission for a vehicle, comprising:
- first, second, third and fourth planetary gear sets, wherein each of the first, second, third, and fourth planetary gear sets includes first, second and third rotating elements;
- friction members comprising first, second and third clutches and first, second and third brakes;
- an input shaft to which rotation power is inputted;
- and
- an output shaft from which the rotation power is outputted, wherein
- the first rotating element of the first planetary gear set is selectively connected to the input shaft through the first clutch and continuously connected to the first rotating element of the second planetary gear set wherein the first rotating element of the first planetary gear set is connected to the first brake, the second rotating element of the first planetary gear set is selectively connected to the second rotating element of the second planetary gear set through the third clutch wherein the second rotating element of the first planetary gear set is connected to the second brake, and the third rotating element of the first planetary gear set is continuously connected to the second rotating element of the fourth planetary gear set,
- the first rotating element of the second planetary gear set is continuously connected to the first rotating element of the first planetary gear set, the second rotating element of the second planetary gear set is selectively connected to the third rotating element of the third planetary gear set through the second clutch, and the third rotating element of the second planetary gear set is continuously connected to the input shaft,
- the first rotating element of the third planetary gear set is continuously connected to the first rotating element of the fourth planetary gear set and connected to the third brake, the second rotating element of the third planetary gear set is continuously connected to the third rotating element of the fourth planetary gear set and continuously connected to the output shaft, and the third rotating element of the third planetary gear set is selectively connected to the second rotating element of the second planetary gear set through the second clutch, and
- the first rotating element of the fourth planetary gear set is continuously connected to the first rotating element of the third planetary gear set and connected to the third brake, the second rotating element of the fourth planetary gear set is continuously connected to the third rotating element of the first planetary gear set, and the third rotating element of the fourth planetary gear set is continuously connected to the second rotating element of the third planetary gear set.
A multi-stage auto transmission for a vehicle, comprising:
- a first planetary gear set comprising first, second and third rotating elements and having a first clutch and first and second brakes arranged at a side thereof;
- a second planetary gear set comprising first, second and third rotating elements and having second and third clutches arranged at a side thereof;
- a third planetary gear set comprising first, second and third rotating elements;
- a fourth planetary gear set comprising first, second and third rotating elements and having a third brake arranged at a side thereof;
- an input shaft selectively connected to the first rotating element of the first planetary gear set through the first clutch, and directly connected to the second rotating element of the second planetary gear set;
- and
- an output shaft continuously connected to the third rotating element of the fourth planetary gear set and the second rotating element of the third planetary gear set.
Dependencies are inferred from the claim text.