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Transmission for vehicles

A technology for transmissions and transmission housings, which is applied to vehicle gearboxes, vehicle parts, components with teeth, etc., and can solve problems such as difficult installation of automatic transmissions, poor power transmission efficiency, increased manufacturing costs and weight, and achieve improvement. Ride comfort and the effect of improving fuel efficiency

Active Publication Date: 2019-01-04
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]However, as the shift range increases, the number of components in an automatic transmission increases and, therefore, may make the automatic transmission difficult to install, expensive to manufacture and heavy to manufacture. may increase, and its power transmission efficiency will also become worse

Method used

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  • Transmission for vehicles
  • Transmission for vehicles
  • Transmission for vehicles

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Embodiment Construction

[0034] 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 drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0035] Here, the term "fixedly connected" or similar expressions means that at least two parts are connected to each other so as to always rotate together. Therefore, those skilled in the art should understand that the term "fixedly connected" or similar expressions is different from the term "operably connected" or similar expressions.

[0036] A transmission for a vehicle according to one form of the present invention may include a first planetary gear set PG1 , a second planetary gear set PG2 , a third planetary gear set PG3 and a compound planetary gear set CPG. Each planetary gear set may include three or more rotating elements.

[0037] figure 1 and figure 2 is an exemplary schematic diagram showing the...

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Abstract

Disclosed is a transmission for a vehicle that can improve fuel efficiency by implementing multiple steps of shifting and improve vehicle driving comfort by using operating points in a low RPM range of an engine. According to the transmission, since three single planetary gear sets and one compound planetary gear set are combined or five single planetary gear sets are compound and the rotary elements of the planetary gear sets and friction members are selectively connected and disconnected, their rotational speeds and directions are changed when shifting is performed. Therefore, a vehicle canbe driven with the gear ratios of ten or more steps of forward shifting and one step of reverse shifting.

Description

technical field [0001] The present invention relates to a transmission for a vehicle capable of improving fuel efficiency and improving ride comfort of the vehicle by realizing a plurality of shifting positions. Background technique [0002] The statements in this section merely provide background information related to the present invention and may not constitute prior art. [0003] Recently, rising oil prices have caused vehicle manufacturers all over the world to engage in endless competition. Especially regarding the engine, vehicle manufacturers have worked hard to reduce the weight of the vehicle and improve the fuel efficiency of the vehicle by reducing the size of the engine and the like. [0004] For an automatic transmission, there are various methods for improving fuel efficiency and operability and competitiveness of fuel efficiency can be ensured by implementing a plurality of shift positions. [0005] However, as the shift range increases, the number of parts...

Claims

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Application Information

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IPC IPC(8): F16H3/66F16H57/023
CPCF16H3/666F16H57/023F16H2200/0082F16H2200/0069F16H2200/2046F16H2200/2015F16H2057/02043F16H3/66F16H2200/2012
Inventor 金基兑黄圣旭权贤植赵源珉鞠再昌池晟旭
Owner HYUNDAI MOTOR CO LTD
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