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US 9,869,373 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, wherein the friction members are connected to at least one of the rotary elements of the planetary gear sets and control rotation of the rotary elements.
Claims9
A transmission for a vehicle, comprising:
- a first planetary gear set including a first rotary element, a second rotary element, and a third rotary element, a second planetary gear set including a first rotary element, a second rotary element, and a third rotary element, a third, planetary gear set including a first rotary element, a second rotary element, and a third rotary element, and a fourth planetary gear set including a first rotary element, a second rotary element, and a third rotary element;
- and
- a plurality of friction members,
- wherein the first planetary gear set includes:
- the first rotary element operating as a selectively-fixed element and connected with the second rotary element of the third planetary gear set;
- the second rotary element selectively connected with the first rotary element of the second planetary gear set, selectively connected with the third rotary element of the second planetary gear set, and selectively connected with the third rotary element of the third planetary gear set;
- and
- the third rotary element selectively connected with the second rotary element of the second planetary gear set;
- the second planetary gear set includes:
- the first rotary element operating as a selectively-fixed element;
- the second rotary element connected to an input shaft;
- and
- the third rotary element connected with the first rotary element of the third planetary gear set;
- the third planetary gear set includes:
- the first rotary element connected with the first rotary element of the fourth planetary gear set;
- and
- the second rotary element connected with the third rotary element of the fourth planetary gear set;
- the fourth planetary gear set includes:
- the second rotary element connected to an output shaft;
- and
- each of the friction elements is disposed between at least one rotation element of the first, second, third, and fourth planetary gear sets and another rotation element of the first, second, third, and fourth planetary gear sets, or mounted to at least one rotation element of the first, second, third, and fourth planetary gear sets.
18 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 second clutch;
- a first shaft connecting a first rotary element of the first planetary gear set, a first brake, a second rotary element of the third planetary gear set, and a third rotary element of the fourth planetary gear set;
- a second shaft connecting a first rotary element of the second planetary gear set, a first clutch, and a second brake;
- a third shaft connecting a second planetary gear set, the first clutch, a third clutch, and a fourth clutch;
- a fourth shaft connecting a third rotary element of the first planetary gear set and a second clutch;
- a fifth shaft connecting a first rotary element of the fourth planetary gear set, a first rotary element of the third planetary gear set, a third rotary element of the second planetary gear set, and the third clutch;
- a sixth shaft connecting a third rotary element of the third planetary gear set and a fourth clutch;
- an output shaft connected with a second rotary element of the fourth planetary gear set;
- and
- a transmission case connected with a first brake and a second brake.
8 more elements
Dependencies are inferred from the claim text.