US 2020/0003281 A1Published application

Planetary gear train of automatic transmission for 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

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Abstract

A planetary gear train of an automatic transmission for a vehicle may include an input shaft to which power of an engine is transmitted, an output shaft outputting the power, 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 fifth planetary gear set including thirteenth, fourteenth and fifteenth rotation elements, and nine shafts and six coupling elements, each of which is connected between the first to fifth planetary gear sets.

Claims19

Dependent claims

A planetary gear train apparatus of an automatic transmission for a vehicle, the planetary gear train apparatus comprising:

an input shaft to which power of an engine is transmitted;
an output shaft outputting the power;
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;
a fifth planetary gear set including a thirteenth rotation element, a fourteenth rotation element and a fifteenth rotation element;
a first shaft fixedly connected to the first rotation element, the fifth rotation element and the input shaft;
a second shaft fixedly connected to the fourteenth rotation element and the output shaft;
a third shaft fixedly connected to the sixth rotation element;
a fourth shaft fixedly connected to the eighth rotation element and the thirteen rotation element;
a fifth shaft fixedly connected to the ninth rotation element;
a sixth shaft fixedly connected to the eleventh rotation element and the fifteenth rotation element;
a seventh shaft fixedly connected to the second rotation element, the fourth rotation element and the seventh rotation element;
an eighth shaft fixedly connected to the third rotation element and the tenth rotation element;
and
a ninth shaft fixedly connected to the twelfth rotation element.

14 more elements

A planetary gear train apparatus of an automatic transmission for a vehicle, the planetary gear train apparatus comprising:

an input shaft and an output shaft, which are concentrically mounted;
a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set and a fifth planetary gear set, which are mounted between the input shaft and the output shaft and each of which includes three rotation elements having first, second, and third rotation elements;
and
six coupling elements, which are configured to provide the three rotation elements of the first to fifth planetary gear sets with variable frictional force,
wherein the first rotation element of the first planetary gear set is fixedly connected to the input shaft, the second rotation element of the first planetary gear set is fixedly connected to the first rotation element of the second planetary gear set and to the first rotation element of the third planetary gear set and is selectively connectable to a transmission housing via one of the six coupling elements, and the third rotation element of the first planetary gear set is fixedly connected to the first rotation element of the fourth planetary gear set and is selectively connectable to the transmission housing via another of the six coupling elements,
wherein the second rotation element of the second planetary gear set is fixedly connected to the input shaft and is selectively connectable to the second rotation element of the third planetary gear set, and the third rotation element of the second planetary gear set is selectively connectable to the second rotation element of the third planetary gear set,
wherein the second rotation element of the third planetary gear set is fixedly connected to the first rotation element of the fifth planetary gear set, and the third rotation element of the third planetary gear set is selectively connectable to the second rotation element of the fifth planetary gear set,
wherein the second rotation element of the fifth planetary gear set is fixedly connected to the output shaft, and the third rotation element of the fifth planetary gear set is fixedly connected to the second rotation element of the fourth planetary gear set, and
wherein the third rotation element of the fourth planetary gear set is selectively connectable to the transmission housing via a further another of the six coupling elements.

6 more elements

A planetary gear train apparatus of an automatic transmission for a vehicle, the planetary gear train apparatus comprising:

a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set and a fifth planetary gear set, each of which includes three rotation elements having first, second, and third rotation elements;
six coupling elements, which are configured to provide the three rotation elements of the first to fifth planetary gear sets with variable frictional force;
and
first to ninth shafts, which are connected to the three rotation elements of the first to fifth planetary gear sets,
wherein the first shaft is fixedly connected to the first rotation element of the first planetary gear set, to the second rotation element of the second planetary gear set and to an input shaft,
wherein the second shaft is fixedly connected to the second rotation element of the fifth planetary gear set and to an output shaft,
wherein the third shaft is fixedly connected to the third rotation element of the second planetary gear set,
wherein the fourth shaft is fixedly connected to the second rotation element of the third planetary gear set and to the first rotation element of the fifth planetary gear set,
wherein the fifth shaft is fixedly connected to the third rotation element of the third planetary gear set, and
wherein the sixth shaft is fixedly connected to the third rotation element of the fifth planetary gear set and to the second rotation element of the fourth planetary gear set,
wherein remaining three shafts among the first to ninth shafts are selectively connectable to a transmission housing.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/201,849Filed 27 Nov 2018
Priority: KR 10-2018-007447428 Jun 2018
Published: 2 Jan 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F16H 3/62
Using gears having orbital motion: gearings having three or more central gears
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 2200/2015
Characterised by the number of sets of orbital gears: with five sets of orbital gears