Planetary gear train of automatic transmission for vehicle
AssigneeHyundai Motor Company
InventorsHyun Sik Kwon, Seong Wook Hwang, Ki Tae Kim, Wonmin Cho, Jae Chang Kook, Seongwook Ji
Life of this patent
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Abstract
A planetary gear train of an automatic transmission for the vehicle may include: an input shaft receiving torque of an engine; an output shaft outputting torque; a first planetary gear set including first, second, and third rotation elements; a second planetary gear set including fourth, fifth, and sixth rotation elements; a third planetary gear set including seventh, eighth, and ninth rotation elements; and a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements.
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 first, second, and third rotation elements;
- a second planetary gear set including fourth, fifth, and sixth rotation elements;
- a third planetary gear set including seventh, eighth, and ninth rotation elements;
- a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements;
- a first shaft connected to the first rotation element and the fifth rotation element and connected to the input shaft;
- a second shaft connected to the second rotation element and selectively connectable to the first shaft;
- a third shaft connected to the third rotation element;
- a fourth shaft connected to the fourth rotation element and connected to a transmission housing;
- a fifth shaft connected to the sixth rotation element;
- a sixth shaft connected to the seventh rotation element and the twelfth rotation element and selectively connectable to the second shaft;
- a seventh shaft connected to the eighth rotation element and the eleventh rotation element and connected to the output shaft;
- an eighth shaft connected to the ninth rotation element and selectively connectable to the third shaft;
- and
- a ninth shaft connected to the tenth rotation element and selectively connectable to the second shaft and the fifth shaft.
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 first, second, and third rotation elements;
- a second planetary gear set including fourth, fifth, and sixth rotation elements;
- a third planetary gear set including seventh, eighth, and ninth rotation elements;
- and
- a fourth planetary gear set including tenth, eleventh, and twelfth rotation elements,
- wherein the input shaft is connected to the fifth rotation element,
- the output shaft is connected to the eleventh rotation element,
- the first rotation element is connected to the fifth rotation element,
- the seventh rotation element is connected to the twelfth rotation element,
- the eighth rotation element is connected to the eleventh rotation element,
- the second rotation element is selectively connectable to the first rotation element, the seventh rotation element, and the tenth rotation element,
- the third rotation element is selectively connectable to the ninth rotation element,
- the tenth rotation element is selectively connectable to the sixth rotation element, and
- the fourth rotation element is connected to a transmission housing.
Dependencies are inferred from the claim text.