Planetary gear train of automatic transmission for vehicles

Patent metadata

Field	Value
Publication number	US-2016169352-A1
Application number	US-201514924528-A
Country	US
Kind code	A1
Filing date	Oct 27, 2015
Priority date	Dec 15, 2014
Publication date	Jun 16, 2016
Grant date	—

Abstract

A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque of an engine, an output shaft outputting changed torque, 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 compound planetary gear set formed by combining third and fourth planetary gear sets and including seventh, eighth, ninth, and tenth rotation elements, a fifth planetary gear set including eleventh, twelfth, and thirteenth rotation elements, and six friction elements disposed between at least one rotation element among thirteen rotation elements and another rotation element or the input shaft, or between at least one rotation element among the thirteen rotation elements and a transmission housing.

First claim

What is claimed is:

1 . A planetary gear train of an automatic transmission for a vehicle, comprising:
an input shaft receiving torque of an engine; an output shaft outputting changed torque; 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 compound planetary gear set formed by combining third and fourth planetary gear sets and including seventh, eighth, ninth, and tenth rotation elements; a fifth planetary gear set including eleventh, twelfth, and thirteenth rotation elements; and six friction elements disposed between at least one rotation element among thirteen rotation elements and another rotation element or the input shaft, or between at least one rotation element among the thirteen rotation elements and a transmission housing, wherein the input shaft is continuously connected to the fifth rotation element, the output shaft is continuously connected to the twelfth rotation element, the ninth rotation element is selectively connected to the input shaft through a first clutch, the tenth rotation element is continuously connected to the eleventh rotation element, the seventh rotation element is continuously connected to the sixth rotation element, the seventh rotation element is selectively connected to the twelfth rotation element so as to achieve a fourth forward speed stage, the eighth rotation element is selectively connected to the twelfth rotation element so as to achieve a sixth forward speed stage, an eighth forward speed stage, and a reverse speed, and three friction elements among the six friction elements are operated so as to achieve nine forward speed stages and at least one reverse speed stage.

2 . The planetary gear train of claim 1 , wherein the eighth rotation element is selectively connected to the twelfth rotation element through a second clutch,
two rotation elements among the seventh, eighth, ninth, and tenth rotation elements are selectively connected to each other through a third clutch, and the seventh rotation element is selectively connected to the twelfth rotation element through a fourth clutch.

3 . The planetary gear train of claim 2 , wherein the first rotation element is continuously connected to the fourth rotation element,
the second rotation element is continuously connected to the thirteenth rotation element, the first rotation element is selectively connected to the transmission housing through a first brake, and the third rotation element is selectively connected to the transmission housing through a second brake.

4 . The planetary gear train of claim 3 , wherein a sun gear, a planet carrier, and a ring gear of the first planetary gear set are set as the first, second, and third rotation elements, a sun gear, a planet carrier, and a ring gear of the second planetary gear set are set as the fourth, fifth, and sixth rotation elements, and a sun gear, a planet carrier, and a ring gear of the fifth planetary gear set are set as the eleventh, twelfth, and thirteenth rotation elements.

5 . The planetary gear train of claim 3 , wherein the compound planetary gear set is formed by combining the third and fourth planetary gear sets that are single pinion planetary gear sets,
the seventh rotation element includes third and fourth sun gears that are directly connected to each other, and the eighth rotation element includes third and fourth planet carriers that are directly connected to each other.

6 . The planetary gear train of claim 3 , wherein the compound planetary gear set is formed by combining the third and fourth planetary gear sets that are single pinion planetary gear sets,
the seventh rotation element includes third and fourth sun gears that are directly connected to each other, and the tenth rotation element includes third and fourth ring gears that are directly connected to each other.

7 . The planetary gear train of claim 3 , wherein the compound planetary gear set is formed by combining the third and fourth planetary gear sets that are single pinion planetary gear sets,
the seventh rotation element includes third and fourth sun gears that are directly connected to each other, and the ninth rotation element includes a third ring gear and a fourth planet carrier that are directly connected to each other.

8 . The planetary gear train of claim 3 , wherein the compound planetary gear set is formed by combining the third planetary gear set that is a double pinion planetary gear set and the fourth planetary gear set that is a single pinion planetary gear set,
the ninth rotation element includes a third ring gear and a fourth planet carrier that are directly connected to each other, and the tenth rotation element includes a third planet carrier and a fourth ring gear that are directly connected to each other.

9 . The planetary gear train of claim 3 , wherein the compound planetary gear set is formed by combining the third planetary gear set that is a double pinion planetary gear set and the fourth planetary gear set that is a single pinion planetary gear set,
the eighth rotation element includes a third sun gear and a fourth planet carrier that are directly connected to each other, and the ninth rotation element includes a third ring gear and a fourth ring gear that are directly connected to each other.

10 . The planetary gear train of claim 3 , wherein the compound planetary gear set is formed by combining the third planetary gear set that is a single pinion planetary gear set and the fourth planetary gear set that is a double pinion planetary gear set,
the eighth rotation element includes a third planet carrier and a fourth sun gear that are directly connected to each other, and the tenth rotation element includes a third ring gear and a fourth planet carrier that are connected to each other.

11 . A planetary gear train of an automatic transmission for a vehicle, comprising:
an input shaft receiving torque of an engine; an output shaft outputting changed torque; 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 compound planetary gear set formed by combining third and fourth planetary gear sets and including seventh, eighth, ninth, and tenth rotation elements; a fifth planetary gear set including eleventh, twelfth, and thirteenth rotation elements; a first rotation shaft including the third rotation element; a second rotation shaft including the second and thirteenth rotation elements; a third rotation shaft including the first and fourth rotation elements; a fourth rotation shaft including the fifth rotation element and directly connected to the input shaft; a fifth rotation shaft including the sixth rotation element and the seventh rotation element; a sixth rotation shaft including the eighth rotation element; a seventh rotation shaft including the ninth rotation element; an eighth rotation shaft including the tenth rotation element and the eleventh rotation element; a ninth rotation shaft including the twelfth rotation element and directly connected to the output shaft; a first clutch selectively connecting the fourth rotation shaft to the seventh rotation shaft; a second clutch selectively connecting the sixth rotation shaft to the ninth rotation shaft; a third clutch connecting any two rotation shafts among the fifth, sixth, seventh, and eighth rotation shafts so as to direct-couple the third and fourth planetary gear sets; a fourth clutch selectively connecting the fifth rotation shaft to the ninth rotation shaft; a first brake

Assignees

• Hyundai Motor Co Ltd

Inventors

• Lee Chang Wook
• Lee Sueng Ho
• Park Jongsool
• Lee Kyeonghun
• Hwang Dong Hwan

Classifications

• F16H2200/2015

  with five sets of orbital gears · CPC title

• F16H3/666 Primary

  with intermeshing orbital gears (F16H3/663 takes precedence) · CPC title

• F16H2200/2046

  with six engaging means · CPC title

• F16H2200/0065

  the gear ratios comprising nine forward speeds · CPC title

• F16H3/66

  composed of a number of gear trains without drive passing from one train to another · CPC title