Planetary gear train for automatic transmission of vehicle

A planetary gear train, automatic transmission technology, applied in the direction of vehicle transmission, vehicle components, gear transmission, etc., can solve the problems of automatic transmission structural limitations, etc., to achieve the improvement of driving efficiency, improve quiet driving, and improve drivability. Effect

Active Publication Date: 2022-07-26
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] It has been found that placing one planetary gear set above the other imposes severe limitations on the construction of automatic transmissions employing parallel arranged planetary gear sets

Method used

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

Examples

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Embodiment Construction

[0047] The following description is merely exemplary in nature and is not intended to limit the invention, application, or uses. It should be understood that throughout the specification and drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0048] However, in order to clearly describe the exemplary forms of the present invention, parts irrelevant to the description will be omitted, and the same reference numerals will be used to refer to the same or similar elements throughout the specification.

[0049] In the following description, the component names are distinguished as first, second, etc. to distinguish the names because the component names are the same as each other, and their order is not particularly limited.

[0050] figure 1 is a schematic diagram of a planetary gear train in a first exemplary form of the invention.

[0051] see figure 1 , this kind of planetary gear train includes: a first planetary gear set PG1, a se...

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PUM

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Abstract

A planetary gear train for an automatic transmission of a vehicle, the planetary gear train being formed by combining first to fourth planetary gear sets, first to eighth shafts, and at least four clutches and two brakes At least ten forward speed gears and one reverse gear can be provided, wherein the first to fourth planetary gear sets have first to third rotation elements, fourth to sixth rotation elements, Seven rotation elements to ninth rotation elements or tenth rotation elements to twelfth rotation elements. In particular, the first shaft is fixedly connected to the first rotating element and the fourth rotating element and is selectively connected to the transmission housing; the second shaft is fixedly connected to the second rotating element and the input shaft; the third shaft is fixedly connected connected to the fifth rotating element, the eighth rotating element and the twelfth rotating element; the fourth shaft is fixedly connected to the ninth rotating element and the tenth rotating element, and is selectively connected to the input shaft.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2017-0075092 filed on June 14, 2017, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a planetary gear train for an automatic transmission of a vehicle, which improves power transmission performance and fuel economy. Background technique [0004] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0005] Generally, automatic transmissions have been developed with more speed ranges, thereby increasing fuel economy and improving drivability. Rising oil prices in recent years have sparked more competition to improve vehicle fuel efficiency. [0006] In this regard, research into reducing weight and improving fuel economy through downsizing of the engine has been recently con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/64
CPCF16H3/64F16H2200/2012F16H2200/0069F16H2200/2046F16H3/666F16H3/66
Inventor 金珍镐张祐槙金振硕鞠再昌黄铜焕黄圣旭金钟洙金兑桓池晟旭石镇源金容范权贤植朴钟述金炫镇李炅勋
Owner HYUNDAI MOTOR CO LTD
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