Sixteen-speed automatic transmission based on single-planetary gear train modular design

A modular design, automatic transmission technology, applied in vehicle gearboxes, gear transmissions, transmission components, etc., can solve the problems of large gear difference, few gears, high energy consumption, etc., and achieve accurate gear ratios , compact structure, small volume effect

Active Publication Date: 2019-10-18
HEFEI UNIV OF TECH
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  • Application Information

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Problems solved by technology

[0005] Aiming at the problems of high energy consumption of the existing electric vehicle single transmission, fewer gears in the automatic transmission, and a larger gear difference, the present invention designs a combination of high and low gears based on the transmission characteristics of the planetary gear train and considering the actual working conditions. A reasonable electric vehicle electric drive system with 16 gear ratios is a beneficial supplement to the existing electric vehicle transmission

Method used

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  • Sixteen-speed automatic transmission based on single-planetary gear train modular design
  • Sixteen-speed automatic transmission based on single-planetary gear train modular design
  • Sixteen-speed automatic transmission based on single-planetary gear train modular design

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Embodiment Construction

[0015] Such as figure 1 As shown, the present invention relates to a 16-speed automatic transmission based on a single planetary wheel modular design. Its features are mainly composed of electric motor M, first transmission stage, second transmission stage, third transmission stage, fourth transmission stage, Composed of reversing stage and housing.

[0016] In the first transmission stage, the first transmission shaft I is respectively fixedly connected with the electric motor M, the first center wheel 1 and the inner ring of the first clutch C1, the first center wheel 1 is externally meshed with the first planetary wheel 2, and the first planetary wheel 2 is externally engaged with the second planetary gear 3, the second planetary gear 3 is internally engaged with the first sun gear 4, the outer ring of the first brake B1 is fixedly connected to the housing, and the first planetary gear 2 and the second planetary gear 3 are respectively connected to the first The inner ring of...

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Abstract

The invention discloses a sixteen-speed automatic transmission based on single-planetary gear train modular design. The sixteen-speed automatic transmission based on single-planetary gear train modular design is characterized by mainly comprising a motor, a planetary gear train, an ordinary gear train, a clutch, brakes, a duplicate gear and a shell, wherein the first brake, the second brake, the third brake, the fourth brake, and the fifth brake are in a parallel type structure, and the conversion of respective gear trains is realized through the respective engagement. The sixteen-speed automatic transmission based on the single-planetary gear train modular design has 16 front speeds and 16 reverse gears, has flexible transmission ratio design, not only can be used for improving the fuel economy of a car, but also can be applied to gearboxes of trucks and heavy trucks, provides a new scheme reference for the structures of existing large-sized vehicle power transmission systems, and hasrelatively high use value and good application prospect.

Description

Technical field [0001] The invention belongs to the field of electric vehicle driving, and specifically relates to a 16-speed automatic transmission based on a single planetary wheel type modular design. Background technique [0002] Because the planetary gear structure is flexible and changeable, the transmission ratio is easy to adjust, and the shifting method is relatively simple, it is widely used in the design of transmissions. Therefore, the use of planetary gears is the first choice for the design of multi-speed transmissions. [0003] Patent CN201821755484.0 discloses a 16-speed constant-speed ratio-stage full-power shift gearbox. The utility model is equipped with a fixed-shaft power shift section with one, two, three, four, five, planetary Six axles are installed in the power shift section. The above arrangement can transmit the engine power to the power output shaft through the fixed shaft power shift section and the planetary power shift section. The utility model can r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/64
CPCF16H3/64F16H2200/2015F16H2200/2056
Inventor 陈奇王雨王孝震周建军王亚东
Owner HEFEI UNIV OF TECH
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