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multi-speed automatic transmission

An automatic transmission, gear technology, applied in the direction of transmission, gear transmission, belt/chain/gear, etc., can solve the problems of manufacturing cost, weight and power transmission efficiency, and achieve the effect of improving fuel efficiency

Inactive Publication Date: 2019-09-24
HYUNDAI MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, as the shifting range of the transmission increases, the number of components in the transmission increases, resulting in poor manufacturing cost, weight, and power transmission efficiency

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Embodiment Construction

[0022] The following description is merely exemplary in nature and is not intended to limit the invention, application or use. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0023] see figure 1 , image 3 and Figure 5 , the form of the present invention collectively includes: an input shaft "IN" and an output shaft "OUT", a first planetary gear set "PG1", a second planetary gear set "PG2", a third planetary gear set "PG3" and a fourth Planetary gear set "PG4", and at least six shift members (for example, clutches CL1 to CL6); each of the planetary gear sets includes three rotating members, and each planetary gear set is on the input shaft "IN Torque is transmitted between " and the output shaft "OUT"; the at least six shift members are connected to the rotating members of the planetary gear set.

[0024] For the first planetary gear set PG1, the first rotating member S1 remains co...

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Abstract

An automotive multistage transmission includes four planetary gear sets and six shifting members, and each of the planetary gear sets include three rotary members selectively connected to the six shifting members to transmit torque between input and output shafts, so that the automotive multistage transmission provides ten or more forward shifting stages and one or more rearward shifting stages with few parts and a simple configuration. With this arrangement, the transmission can improve fuel efficiency of a vehicle.

Description

technical field [0001] The invention relates to a multi-gear automatic transmission. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] Recently, the rise in oil prices has pushed manufacturers all over the world into endless competition. With engines in particular, manufacturers try to reduce weight and improve fuel efficiency through downsizing and similar methods. [0004] Alternatively, as a method capable of improving fuel efficiency using a transmission in a vehicle, there is a method of increasing the shift position of the transmission to operate the engine at a more efficient operating point, thereby improving fuel efficiency. [0005] Increasing the shifting range of the transmission allows the engine to run in a relatively low RPM (revolutions per minute) range, so the vehicle runs more quietly. [0006] However, as the shifting speeds of ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/66
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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