Planetary gear train of automatic transmission for a vehicle

A technology of automatic transmission and planetary gear train, which is applied in vehicle gearboxes, vehicle components, gear transmissions, etc., can solve problems such as poor work efficiency and power transmission efficiency, manufacturing cost and weight increase, and achieve improved quiet driving, The effect of improving power transmission performance and fuel economy

Inactive Publication Date: 2016-06-22
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in an automatic transmission, as the number of gears increases, the number of internal components also increases. As a result, the work efficiency and power transmission efficiency when the transmission is installed in a vehicle deteriorate, and the manufacturing cost of the vehicle and the weight will also increase

Method used

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  • Planetary gear train of automatic transmission for a vehicle
  • Planetary gear train of automatic transmission for a vehicle

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Embodiment Construction

[0025] Reference will now be made in detail to various embodiments of the present application, examples of which are illustrated in the accompanying drawings and described below. While the application will be described in connection with exemplary embodiments, it will be understood that present description is not intended to limit the application to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments but also various alternatives, modifications, equivalents and other alternatives, modifications, equivalents and others, which may be included within the spirit and scope of the invention as defined by the appended claims. implementation plan.

[0026] figure 1 is a schematic illustration of a planetary gear train according to various embodiments of the present invention.

[0027] refer to figure 1 , the planetary gear train according to various embodiments of the present invention includes: a first planetary gear ...

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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, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, a first rotation shaft selectively connected to a transmission housing, a second rotation shaft, a third rotation shaft selectively connected to the transmission housing, a fourth rotation shaft directly connected to the input shaft, a fifth rotation shaft selectively connected to the second rotation shaft, a sixth rotation shaft, a seventh rotation shaft selectively connected to the input shaft, and selectively connected to the fifth rotation shaft or the sixth rotation shaft, and an eighth rotation shaft directly connected to the output shaft.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2014-0177364 filed on December 10, 2014, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present application relates to an automatic transmission for a vehicle. More particularly, the present application relates to a planetary gear train of an automatic transmission for a vehicle, which improves power transmission performance and reduces fuel consumption by implementing ten forward gears using a minimum number of constituent elements. Background technique [0004] Rising gas prices in recent years have forced automakers into a never-ending race to improve fuel efficiency. [0005] As a result, in the case of engines, studies have been conducted to reduce weight and improve fuel efficiency through downsizing, and in the case of automatic transmissions, studies have been conducted to en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/66
CPCF16H3/66F16H2200/0069F16H2200/2012F16H2200/2046
Inventor 赵源珉鞠再昌卢明勋池晟旭徐罡寿黄圣旭
Owner HYUNDAI MOTOR CO LTD
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