Planetary gear train of automatic transmission for vehicle
First Claim
1. A planetary gear train of an automatic transmission for a vehicle, comprising:
- 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;
an input shaft mounted with the first, second, and third planetary gear sets at an external circumference of the input shaft;
an output shaft disposed in parallel with the input shaft and mounted with the fourth planetary gear set on an external circumference of the output shaft;
a first shaft connecting the first rotation element and the fifth rotation element and directly connected with the input shaft;
a second shaft connected with the second rotation element;
a third shaft interconnecting the third rotation element and the eighth rotation element;
a fourth shaft interconnecting the fourth rotation element and the ninth rotation element;
a fifth shaft connected with the sixth rotation element;
a sixth shaft connected with the seventh rotation element;
a seventh shaft connected with the tenth rotation element;
an eighth shaft connected with the eleventh rotation element, directly connected with the output shaft, and selectively gear-meshed with the fifth shaft; and
a ninth shaft connected with the twelfth rotation element.
1 Assignment
0 Petitions
Accused Products
Abstract
A planetary gear train of an automatic transmission for a vehicle may include a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, an input shaft mounted with the first, second, and third planetary gear sets at an external circumference of the input shaft, an output shaft disposed in parallel with the input shaft and mounted with the fourth planetary gear set on an external circumference of the output shaft, a first shaft directly connected with the input shaft, a second shaft, a third shaft, a fourth shaft, a fifth shaft, a sixth shaft, a seventh shaft, an eighth shaft directly connected with the output shaft, and selectively gear-meshed with the fifth shaft, and a ninth shaft.
10 Citations
25 Claims
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1. A planetary gear train of an automatic transmission for a vehicle, comprising:
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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; an input shaft mounted with the first, second, and third planetary gear sets at an external circumference of the input shaft; an output shaft disposed in parallel with the input shaft and mounted with the fourth planetary gear set on an external circumference of the output shaft; a first shaft connecting the first rotation element and the fifth rotation element and directly connected with the input shaft; a second shaft connected with the second rotation element; a third shaft interconnecting the third rotation element and the eighth rotation element; a fourth shaft interconnecting the fourth rotation element and the ninth rotation element; a fifth shaft connected with the sixth rotation element; a sixth shaft connected with the seventh rotation element; a seventh shaft connected with the tenth rotation element; an eighth shaft connected with the eleventh rotation element, directly connected with the output shaft, and selectively gear-meshed with the fifth shaft; and a ninth shaft connected with the twelfth rotation element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A planetary gear train of an automatic transmission for a vehicle, comprising:
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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; an input shaft mounted with the first, second, and third planetary gear sets at an external circumference of the input shaft; and an output shaft disposed in parallel with the input shaft and mounted with the fourth planetary gear set on an external circumference of the output shaft, wherein the first rotation element and the fifth rotation element are directly connected with the input shaft, the second rotation element is selectively connectable with at least one of the input shaft and a transmission housing, the third rotation element is directly connected with the eighth rotation element, the fourth rotation element is directly connected with the ninth rotation element, selectively connectable with the second rotation element, and gear-meshed with one rotation element among the tenth and twelfth rotation elements, the sixth rotation element is selectively gear-meshed with the eleventh rotation element which is directly connected with the output shaft, the seventh rotation element is selectively connectable with the transmission housing, and a remaining rotation element among the tenth and twelfth rotation elements that is not gear-meshed with the fourth rotation element is selectively connectable with the transmission housing. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification