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Multi-stage transmission for vehicle

Active Publication Date: 2016-12-15
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a multi-stage transmission for a vehicle that can change gears forward and reverse with a simple and efficient configuration. By doing so, the engine can operate at optimum points, improving fuel efficiency and reducing noise. This results in a quieter, more comfortable vehicle for passengers.

Problems solved by technology

This may lead to undesirable effects instead, such as the reduced mountability and transfer efficiency and the increased cost and weight of the transmission.

Method used

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  • Multi-stage transmission for vehicle
  • Multi-stage transmission for vehicle
  • Multi-stage transmission for vehicle

Examples

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Embodiment Construction

[0023]Reference will now be made in detail to various embodiments of the present invention(s), examples of which are illustrated in the accompanying drawings and described below. While the invention(s) will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention(s) to those exemplary embodiments. On the contrary, the invention(s) is / are intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.

[0024]Referring to FIG. 1, a multi-stage transmission for a vehicle according to an exemplary embodiment of the present invention may include an input shaft IN; an output shaft OUT; first to fourth planetary gear devices PG1, PG2, PG3 and PG4 disposed between the input shaft IN and / or the output shaft OUT to transmit rotary force, eac...

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Abstract

A multi-stage transmission for a vehicle includes an input shaft, an output shaft, first to fourth planetary gear devices disposed between the input shaft and the output shaft to transmit rotary forces and each of them having three rotary elements, and at least six shifting elements connected to the rotary elements of the planetary gear devices. Of the first planetary gear device, the first rotary element is permanently connected to the input shaft and a second rotary element of the third planetary gear device, a second rotary element is installed to be fixable by any one of the shifting elements and variably connected to a first rotary element of the second planetary gear device, and a third rotary element of the first planetary gear device is permanently connected to a second rotary element and variably connected to a first rotary element of the fourth planetary gear device.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]The present application claims priority of Korean Patent Application Number 10-2015-0082785 filed Jun. 11, 2015, the entire contents of which application are incorporated herein for all purposes by this reference.BACKGROUND OF THE INVENTION[0002]Field of the Invention[0003]The present invention generally relates to a multi-stage transmission for a vehicle and, more particularly, to a multi-stage transmission technology able to realize highest possible number of shifting stages using fewer parts and simpler configuration, thereby improving fuel efficiency of a vehicle.[0004]Description of Related Art[0005]Recent rising oil prices have driven worldwide car manufacturers into unlimited competition to improve fuel efficiency. In addition, great efforts have been made to reduce the weight and improve the fuel efficiency of engines based on a variety of techniques such as downsizing.[0006]Meanwhile, among methods that can be sought for transmiss...

Claims

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Application Information

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IPC IPC(8): F16H3/66
CPCF16H3/66F16H2200/0069F16H2200/2097F16H2200/2046F16H2200/2012F16H57/028F16H2306/00
Inventor CHO, WON MINKOOK, JAE CHANGHWANG, SEONG WOOKKWON, HYUN SIKJI, SEONG WOOKSEO, KANG SOONOH, MYEONG HOON
Owner HYUNDAI MOTOR CO LTD
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