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US 10,520,065 B2Granted
Planetary gear train of an automatic transmission for a vehicle
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsJin Ho Kim, Jae Joon Lee, Jong Sool Park, Kyeong Hun Lee, Jong Soo Kim
Life of this patent
Estimating the term…
Abstract
A planetary gear train of an automatic transmission for a vehicle includes input and output shafts, and first, second, third, fourth, and fifth planetary gear sets, each including three rotational elements. The gear train also includes nine shafts for selectively connecting the planetary gear sets, the input and output shafts, and a transmission housing in various configurations to achieve at least ten forward speeds and at least one reverse speed.
Claims16
A planetary gear train of an automatic transmission for a vehicle, comprising:
- an input shaft for receiving an input torque;
- an output shaft for outputting a shifted torque;
- a first planetary gear set having a first, a second, and a third rotational element;
- a second planetary gear set having a fourth, a fifth, and a sixth rotational element;
- a third planetary gear set having a seventh, an eighth, and a ninth rotational element;
- a fourth planetary gear set having a tenth, an eleventh, and a twelfth rotational element;
- a fifth planetary gear set having a thirteenth, a fourteenth, and a fifteenth rotational element;
- a first shaft fixedly connected with the second rotational element and fixedly connected with the input shaft;
- a second shaft fixedly connected with the fourteenth rotational element and fixedly connected with the output shaft;
- a third shaft fixedly connected with the third rotational element and the ninth rotational element;
- a fourth shaft fixedly connected with the fifth rotational element, the eighth rotational element, and the fifteenth rotational element;
- a fifth shaft fixedly connected with the seventh rotational element and the tenth rotational element;
- a sixth shaft fixedly connected with the twelfth rotational element;
- and
- a plurality of shafts, each of which is selectively connected to a transmission housing and fixedly connected to a rotational element of the first, second, fourth, and fifth planetary gear sets that is not fixedly connected with any of the first to sixth shafts.
12 more elements
A planetary gear train of an automatic transmission for a vehicle, comprising:
- an input shaft for receiving an input torque;
- an output shaft for outputting a shifted torque;
- a first planetary gear set having a first, a second, and a third rotational element;
- a second planetary gear set having a fourth, a fifth, and a sixth rotational element;
- a third planetary gear set having a seventh, an eighth, and a ninth rotational element;
- a fourth planetary gear set having a tenth, an eleventh, and a twelfth rotational element;
- a fifth planetary gear set having a thirteenth, a fourteenth, and a fifteenth rotational element,
- wherein the first rotational element is fixedly connected with the fourth rotational element and selectively connected with a transmission housing,
- the second rotational element is fixedly connected with the input shaft,
- the third rotational element is fixedly connected with the ninth rotational element,
- the fifth rotational element is fixedly connected with the eighth rotational element and the fifteenth rotational element,
- the sixth rotational element is selectively connected with the transmission housing,
- the seventh rotational element is fixedly connected with the tenth rotational element and selectively connected with the sixth rotational element,
- the eleventh rotational element is fixedly connected with the thirteenth rotational element and selectively connected with the transmission housing,
- the twelfth rotational element is selectively connected with the fourteenth rotational element, and
- the fourteenth rotational element is fixedly connected with the output shaft and selectively connected with the ninth rotational element.
13 more elements
A planetary gear train of an automatic transmission for a vehicle, comprising:
- an input shaft for receiving an input torque;
- an output shaft for outputting a shifted torque;
- a first planetary gear set having a first, a second, and a third rotational element;
- a second planetary gear set having a fourth, a fifth, and a sixth rotational element;
- a third planetary gear set having a seventh, an eighth, and a ninth rotational element;
- a fourth planetary gear set having a tenth, an eleventh, and a twelfth rotational element;
- a fifth planetary gear set having a thirteenth, a fourteenth, and a fifteenth rotational element,
- wherein the first rotational element is fixedly connected with the fourth rotational element and selectively connected with a transmission housing,
- the second rotational element is fixedly connected with the input shaft,
- the third rotational element is fixedly connected with the ninth rotational element,
- the fifth rotational element is fixedly connected with the eighth rotational element and the fifteenth rotational element,
- the sixth rotational element is selectively connected with the transmission housing,
- the seventh rotational element is fixedly connected with the tenth rotational element and selectively connected with the sixth rotational element,
- the eleventh rotational element is fixedly connected with the thirteenth rotational element and selectively connected with the transmission housing,
- the twelfth rotational element is selectively connected with the fifteenth rotational element, and
- the fourteenth rotational element is fixedly connected with the output shaft and selectively connected with the ninth rotational element.
13 more elements
Dependencies are inferred from the claim text.