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Planetary gear train of automatic transmission for vehicles

一种自动变速器、行星齿轮系的技术，应用在齿轮传动装置、皮带/链条/齿轮、传动装置等方向，能够解决安装性、传动效率变差、成本和重量增加等问题，达到提高安静行驶性能、提高动力传递性能和燃料经济性的效果

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

AI Technical Summary

Problems solved by technology

[0006] However, in an automatic transmission, as the number of gears increases, the number of internal components also increases, and as a result, mountability, transmission efficiency, etc. are still deteriorated, and cost and weight also increase

Method used

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Embodiment Construction

[0024] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention 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 implementations, which may be included within the spirit and scope of the invention as defined by the appended claims. Program.

[0025] figure 1 are configuration diagrams of planetary gear trains according to various embodiments of the present invention.

[0026] refer to figure 1 , the planetary gear train according to various embodiments of the present invention includes: first, second, third and fourth planetary gear sets PG1, PG2, PG3 and PG4, an input s...

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Abstract

A planetary gear train of an automatic transmission for vehicles 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 rotational shaft selectively connected to a transmission housing, a second rotational shaft directly connected to the input shaft, a third rotational shaft, a fourth rotational shaft, a fifth rotational shaft selectively connected to the first rotational shaft or the second rotational shaft, a sixth rotational shaft directly connected to the output shaft, a seventh rotational shaft selectively connected to the transmission housing, an eighth rotational shaft selectively connected to the fourth rotational shaft or the fifth rotational shaft, and six friction elements interposed between the rotational shafts, or between at least one rotational shaft and the transmission housing to connect selectively.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2014-0178389 filed on December 11, 2014, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to an automatic transmission for a vehicle, and more particularly, to a planetary gear train of an automatic transmission for a vehicle, which realizes 11 forward speeds with the most simplified configuration, thereby improving power transmission performance and Improve fuel efficiency. Background technique [0004] Rising oil prices in recent years have fueled increased competition for technologies that 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 ensure competitiveness in both op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/64
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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