Multi-speed transmission and automobile

A transmission and clutch technology, which is applied to gear transmissions, elements with teeth, belts/chains/gears, etc., can solve the problems of poor fuel economy, poor riding comfort, and large shift impact of the whole vehicle, and achieve a compact structure. , The effect of improving fuel economy and fast skipping

Pending Publication Date: 2019-05-28
北京汽车动力总成有限公司
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Problems solved by technology

[0002] Modern multi-stage transmissions have met many of the proposed requirements, but there are too few gears so that the engine cannot often work in its fuel economy optimal area, resulting in poor fuel econom

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  • Multi-speed transmission and automobile
  • Multi-speed transmission and automobile

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Embodiment Construction

[0030] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0031] The present invention aims at the problems of the prior art multi-stage transmission, uses three planetary gear sets and five switching elements to realize six forward gears and one reverse gear, and realizes fewer gears, so that the engine cannot often work at its fuel economy Optimum area, resulting in poor fuel economy of the vehicle, large shifting impact, and poor ride comfort. Four planetary gear sets and six switching elements are used to realize nine forward gears and one reverse gear. The structure is relatively complicated and the volume is large. , more gear sets make the cost high; provide a multi-stage transmission, by using three planetary gear sets and six switching elements, at least eight forward gears and one reverse gear can be r...

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Abstract

The invention provides a multi-speed transmission and an automobile. The multi-stage transmission comprises a driving shaft, a driven shaft, three planetary gear sets and six switching elements, wherein the driving shaft is arranged in a shell, each planetary gear set is provided with a sun gear, a planetary carrier, gear rings and planetary gears, the six switching elements are a first clutch, asecond clutch, a third clutch, a fourth clutch, a fifth clutch and a sixth clutch, selective engagement of the switching elements leads to different transmission ratios between the drive shaft and thedriven shaft, so that eight forward gears and one reverse gear can be realized; and only one switching element is changed during gear shifting in the gear set, so that double switching can be avoidedin the gear shifting mode, and sequential gear shifting can be realized.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a multi-stage transmission and an automobile. Background technique [0002] Modern multi-stage transmissions have met many of the proposed requirements, but there are too few gears so that the engine cannot often work in its fuel economy optimal area, resulting in poor fuel economy of the vehicle, large shifting impact, and poor ride comfort. Difference. The existing transmission with more gears has a complex structure and a large volume, and more gear sets make the cost high. Contents of the invention [0003] The object of the present invention is to provide a multi-stage transmission and an automobile. By using fewer planetary gear sets and switching elements, at least eight forward gears and one reverse gear can be realized, so that the fuel economy of the whole vehicle can be improved, and the impact of shifting can be reduced. Small size, quicker shifting, smoother ...

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Application Information

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IPC IPC(8): F16H3/62F16H61/04
Inventor 张心俊王兆辉薛云飞雷娟宫雨张艳青贺燕铭李斌黄文炳
Owner 北京汽车动力总成有限公司
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