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US 9,752,661 B1Granted
Planetary gear train of automatic transmission for vehicle
AssigneeHyundai Motor Company
InventorsJae Chang Kook, Seongwook Ji, Woo Jin Chang, Wonmin Cho, Hyun Sik Kwon, Seong Wook Hwang, Ki Tae Kim
Life of this patent
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Abstract
The present disclosure provides a planetary gear train of an automatic transmission for a vehicle including an input shaft, an output shaft, four planetary gear sets respectively having three rotational elements, and six control elements for selectively interconnecting the rotational elements and a transmission housing.
Claims10
A planetary gear train of an automatic transmission for a vehicle, comprising:
- an input shaft configured to receive an engine torque;
- an output shaft configured to output a shifted torque;
- a first planetary gear set having a first, a second, and a third rotational elements;
- a second planetary gear set having a fourth, a fifth, and a sixth rotational elements;
- a third planetary gear set having a seventh, an eighth, and a ninth rotational elements;
- a fourth planetary gear set having a tenth;
- an eleventh, and a twelfth rotational elements;
- a first shaft connected to the first rotational element and the fourth rotational element;
- a second shaft connected to the second rotational element and connected to the input shaft;
- a third shaft connected to the third rotational element and the seventh rotational element;
- a fourth shaft connected to the fifth rotational element, the eighth rotational element;
- and the twelfth rotational element;
- a fifth shaft connected to the sixth rotational element;
- a sixth shaft connected to the ninth rotational element;
- a seventh shaft connected to the tenth rotational element, and selectively connected to the second shaft, the third shaft, and the sixth shaft respectively;
- and
- an eighth shaft connected to the eleventh rotational element, selectively connected to the sixth shaft, and connected to the output shaft.
14 more elements
A planetary gear train of an automatic transmission for a vehicle, comprising:
- an input shaft configured to receive an engine torque;
- an output shaft configured to output a shifted torque;
- a first planetary gear set having a first, a second, and a third rotational elements;
- a second planetary gear set having a fourth, a fifth, and a sixth rotational elements;
- a third planetary gear set having a seventh, an eighth, and a ninth rotational elements;
- and
- a fourth planetary gear set having a tenth, an eleventh, and a twelfth rotational elements,
- wherein the input shaft is connected to the second rotational element,
- the output shaft is connected to the eleventh rotational element,
- the first rotational element is connected to the fourth rotational element,
- the third rotational element is connected to the seventh rotational element,
- the fifth rotational element is connected to the eighth rotational element and the twelfth rotational element,
- the tenth rotational element is selectively connected to the second, the third, and the ninth rotational elements respectively, and
- the eleventh rotational element is selectively connected to the ninth rotational element.
11 more elements
Dependencies are inferred from the claim text.