US 10,473,191 B2Granted

Planetary gear train of automatic transmission for vehicle

AssigneesHyundai Motor Company, Kia Motors Corporation

InventorsJin Ho Kim, Dong Hwan Hwang, Jong Sool Park, Jong Soo Kim, Kyeong Hun Lee

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Abstract

The present disclosure provides a planetary gear train of an automatic transmission including: input and output shafts, first to fifth planetary gear sets respectively having first to third, fourth to sixth, seventh to ninth, tenth to twelfth, and thirteenth to fifteenth rotational elements, a first shaft connected with the second rotational element and the input shaft, a second shaft connected with the fourteenth rotational element and the output shaft, a third shaft connected with the ninth and thirteenth rotational elements, a fourth shaft connected with the tenth and fifteenth rotational elements, a fifth shaft connected with the third and seventh rotational elements, a sixth shaft connected with the sixth rotational element, a seventh shaft connected with the fifth, eighth, and eleventh rotational elements, an eighth shaft connected with the first and fourth rotational elements, and a ninth shaft connected with the twelfth rotational element.

Claims27

Dependent claims

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 first, second, and third rotational elements;
a second planetary gear set having fourth, fifth, and sixth rotational elements;
a third planetary gear set having seventh, eighth, and ninth rotational elements;
a fourth planetary gear set having tenth, eleventh, and twelfth rotational elements;
a fifth planetary gear set having thirteenth, fourteenth, and fifteenth rotational elements;
a first shaft fixedly connected with the second rotational element and the input shaft;
a second shaft fixedly connected with the fourteenth rotational element and the output shaft;
a third shaft fixedly connected with the ninth rotational element and the thirteenth rotational element;
a fourth shaft fixedly connected with the tenth rotational element and the fifteenth rotational element;
a fifth shaft fixedly connected with the third rotational element and the seventh rotational element;
a sixth shaft fixedly connected with the sixth rotational element;
a seventh shaft fixedly connected with the fifth rotational element, the eighth rotational element, and the eleventh rotational element;
an eighth shaft fixedly connected with the first rotational element and the fourth rotational element;
and
a ninth shaft fixedly connected with the twelfth rotational element.

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 first, second, and third rotational elements;
a second planetary gear set having fourth, fifth, and sixth rotational elements;
a third planetary gear set having seventh, eighth, and ninth rotational elements;
a fourth planetary gear set having tenth, eleventh, and twelfth rotational elements;
a fifth planetary gear set having thirteenth, fourteenth, and fifteenth rotational elements;
a first shaft fixedly connected with the second rotational element and the input shaft;
a second shaft fixedly connected with the fourteenth rotational element and the output shaft;
a third shaft fixedly connected with the ninth rotational element and the thirteenth rotational element;
a fourth shaft fixedly connected with the tenth rotational element and the fifteenth rotational element;
a fifth shaft fixedly connected with the third rotational element and the seventh rotational element;
a sixth shaft fixedly connected with the sixth rotational element;
a seventh shaft fixedly connected with the fifth rotational element and the eighth rotational element and the eleventh rotational element;
an eighth shaft fixedly connected with the first rotational element and the fourth rotational element;
and
a plurality of shafts comprising a rotation element of the first, second, and fourth planetary gear set that is not fixedly connected with any of the first to seventh shafts, wherein any shaft of the plurality of shafts is configured to selectively connect to the transmission housing.

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 first, second, and third rotational elements;
a second planetary gear set having fourth, fifth, and sixth rotational elements;
a third planetary gear set having seventh, eighth, and ninth rotational elements;
a fourth planetary gear set having tenth, eleventh, and twelfth rotational elements;
a fifth planetary gear set having thirteenth, fourteenth, and fifteenth rotational elements;
a first shaft fixedly connected with the second rotational element and the input shaft;
a second shaft fixedly connected with the fourteenth rotational element and the output shaft;
a third shaft fixedly connected with the ninth rotational element and the thirteenth rotational element;
a fourth shaft fixedly connected with the tenth rotational element and the fifteenth rotational element;
a fifth shaft fixedly connected with the third rotational element and the seventh rotational element;
a sixth shaft fixedly connected with the sixth rotational element;
a seventh shaft fixedly connected with the fifth rotational element and the eighth rotational element and the eleventh rotational element;
and
an eighth shaft fixedly connected with the first rotational element and the fourth rotational element,
wherein the eighth shaft and a ninth shaft comprises a rotation element of the first, second, and fourth planetary gear sets that is not connected with any of the first to seventh shafts, and
wherein the eighth shaft and the ninth shaft are configured to selectively connect to the transmission housing through brakes.

15 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/714,561Filed 25 Sep 2017
Priority: KR 10-2017-005830510 May 2017
Published: US 2018/0328462 A115 Nov 2018
Granted: 12 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F16H 3/66
Gearings having three or more central gears: composed of a number of gear trains without drive passing from one train to another
F16H 2200/0069
Characterised by the number of forward speeds: the gear ratios comprising ten forward speeds
F16H 2200/0091
Characterised by the number of reverse speeds: the gear ratios comprising three reverse speeds
F16H 2200/2015
Characterised by the number of sets of orbital gears: with five sets of orbital gears