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US 9,752,656 B2Granted
Transmission for vehicle
AssigneeHyundai Motor Company
InventorsSeong Wook Ji, Kang Soo Seo, Jae Chang Kook, Won Min Cho, Myeong Hoon Noh, Wook Jin Jang, Seong Wook Hwang
Life of this patent
Estimating the term…
Abstract
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.
Claims10
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 second rotary element of the second planetary gear set and connected with a third rotary element of the second planetary gear set;
- a second rotary element operating as a selectively-fixed element;
- and
- a third rotary element operating as a selectively-fixed element and connected with a third rotary element of the third planetary gear set,
- wherein the second planetary gear set includes:
- a first rotary element selectively connected with a second rotary element of the third planetary gear set and selectively connected with a second rotary element of the fourth planetary gear set;
- the second rotary element connected to an input shaft;
- and
- the third rotary element connected with a first rotary element of the third planetary gear set,
- wherein the third planetary gear set includes the third rotary element connected with a first rotary element of the fourth planetary gear set,
- wherein the fourth planetary gear set includes the second rotary element operating as a selectively-fixed element and a third rotary element connected to an output shaft, and
- wherein the friction members are connected to at least one or more of the three rotary elements of the first, second, and third planetary gear sets and control rotation of the three rotary elements.
13 more elements
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;
- an input shaft connected to a second rotary element of the second planetary gear set and a first clutch;
- a first shaft connecting a first rotary element of the first planetary gear set, a third rotary element of the second planetary gear set, a first rotary element of the third planetary gear set, and the first clutch;
- a second shaft connecting a second rotary element of the first planetary gear set and a first brake;
- a third shaft connecting a third rotary element of the first planetary gear set, a third rotary element of the third planetary gear set, a first rotary element of the fourth planetary gear set, and a second brake;
- a fourth shaft connecting a first rotary element of the second planetary gear set, a second clutch, and a third clutch;
- a fifth shaft connecting a second rotary element of the third planetary gear set and the second clutch;
- a sixth shaft connecting a second rotary element of the fourth planetary gear set, a third brake, and the third clutch;
- an output shaft connected with a third rotary element of the fourth planetary gear set;
- and
- a transmission case connected with the first brake, the second brake, and the third brake.
8 more elements
Dependencies are inferred from the claim text.