Planetary gear train of automatic transmission for vehicle
AssigneeHyundai Motor Company
InventorsJae Chang KOOK, Hyun Sik KWON, Seongwook JI, Wonmin CHO, Wookjin JANG, Seong Wook HWANG
Life of this patent
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Abstract
A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque of an engine, an output shaft outputting torque, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, a first shaft, a second shaft, a third shaft, a fourth shaft, a fifth shaft selectively connectable to the second shaft, a sixth shaft connected to the input shaft, and selectively connectable to each of the third shaft and the fourth shaft, a seventh shaft connected to the output shaft, and an eighth shaft.
Claims10
A planetary gear train of an automatic transmission for a vehicle comprising:
- an input shaft receiving torque of an engine;
- an output shaft outputting torque;
- a first planetary gear set including a first rotation element, a second rotation element, and a third rotation element;
- a second planetary gear set including a fourth rotation element, a fifth rotation element, and a sixth rotation element;
- a third planetary gear set including a seventh rotation element, an eighth rotation element, and a ninth rotation element;
- a fourth planetary gear set including a tenth rotation element, an eleventh rotation element, and a twelfth rotation element;
- a first shaft connecting the first rotation element to the fourth rotation element;
- a second shaft connecting the second rotation element to the twelfth rotation element;
- a third shaft connecting the third rotation element to the fifth rotation element;
- a fourth shaft connected to the sixth rotation element;
- a fifth shaft connected to the seventh rotation element and selectively connectable to the second shaft;
- a sixth shaft connected to the eighth rotation element, connected to the input shaft, and selectively connectable to each of the third shaft and the fourth shaft;
- a seventh shaft connecting the ninth rotation element to the eleventh rotation element and connected to the output shaft;
- and
- an eighth shaft connected to the tenth rotation element.
A planetary gear train of an automatic transmission for a vehicle comprising:
- an input shaft receiving torque of an engine;
- an output shaft outputting torque;
- a first planetary gear set including a first rotation element, a second rotation element, and a third rotation element;
- a second planetary gear set including a fourth rotation element, a fifth rotation element, and a sixth rotation element;
- a third planetary gear set including a seventh rotation element, an eighth rotation element, and a ninth rotation element;
- and
- a fourth planetary gear set including a tenth rotation element, an eleventh rotation element, and a twelfth rotation element,
- wherein the input shaft is connected to the eighth rotation element,
- the output shaft is connected to the ninth rotation element,
- the first rotation element is connected to the fourth rotation element,
- the second rotation element is connected to the twelfth rotation element,
- the third rotation element is connected to the fifth rotation element and is selectively connectable to the eighth rotation element,
- the sixth rotation element is selectively connectable to the eighth rotation element, and
- the ninth rotation element is connected to the eleventh rotation element.
Dependencies are inferred from the claim text.