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Automatic speed change mechanism for dual-motor clutch-free blade electric vehicle

A pure electric vehicle, clutchless technology, applied in the direction of vehicle gearbox, electric power unit, multi-gear ratio transmission, etc., can solve the problems of low reliability, large structure, poor power performance, etc. High efficiency and improved ride comfort

Inactive Publication Date: 2014-09-03
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a dual-motor pure electric vehicle clutchless automatic transmission mechanism to solve the shortcomings of existing electric vehicle transmission mechanisms such as low efficiency, large structure, poor power, and low reliability.

Method used

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  • Automatic speed change mechanism for dual-motor clutch-free blade electric vehicle

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Embodiment Construction

[0015] The present invention will be further described below with reference to the drawings and embodiments.

[0016] Such as figure 1 As shown, the clutchless automatic transmission mechanism for a dual-motor pure electric vehicle of this embodiment includes a first input shaft 11, a second input shaft 13 and an output shaft 12 that are parallel to each other, and the first input shaft 11 is arranged in sequence along the axial direction. There is a first-speed drive gear 3, a first synchronizer 14 and a third-speed drive gear 7. A second-speed drive gear 5, a second synchronizer 15 and a fourth-speed drive gear 9 are sequentially arranged on the second input shaft 13 along the axial direction. The output shaft 12 is provided with a first-speed driven gear 4 meshing with the first-speed drive gear 3, a second-speed driven gear 6 meshing with the second-speed driving gear 5, and a third-speed driven gear 7 meshing with each other in the axial direction. The third-speed driven ge...

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Abstract

The invention discloses an automatic speed change mechanism for a dual-motor clutch-free blade electric vehicle. The automatic speed change mechanism comprises a first input shaft, a second input shaft and an output shaft which are arranged in parallel. A first-gear driving gear, a first synchronizer and a third-gear driving gear are arranged on the first input shaft. A second-gear driving gear, a second synchronizer and a fourth-gear driving gear are arranged on the second input shaft. A first-gear driven gear meshed with the first-gear driving gear, a second-gear driven gear meshed with the second-gear driving gear, a third-gear driven gear meshed with the third-gear driving gear and a fourth-gear driven gear meshed with the fourth-gear driving gear are arranged on the output shaft. The automatic speed change mechanism removes a clutch, the structure of the whole mechanism is simplified, and the manufacturing cost is low. By means of dual-motor driving and controlling the synchronizers and driving motors to achieve gear shifting without power failure, the power switching smoothness is good. When any driving motor breaks down, the other driving motor can work continuously to drive the vehicle to run. Thus, the system reliability is high.

Description

Technical field [0001] The invention relates to a transmission mechanism, in particular to a dual power input automatic transmission mechanism. Background technique [0002] With the deterioration of the world's ecological environment, lack of energy, and rising oil prices, mankind has an urgent need for the research and development of new energy vehicles. Pure electric vehicles have become the focus of current research due to their characteristics of zero emission, low noise, easy operation and maintenance. [0003] However, the existing pure electric vehicles still have many shortcomings. The transmission mechanism has always been relatively large in structure, high in cost, low in efficiency, and heavy in weight. And most pure electric vehicles are driven by a single motor, which requires a large motor power and a relatively large structure size. Therefore, there are problems with the layout and installation of the entire vehicle; if a single motor uses a transmission, it will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K1/02B60K17/08
CPCF16H2003/008F16H2200/0021B60K1/02F16H2200/0034F16H3/089B60K2001/001
Inventor 刘永刚吴睿解庆波秦大同
Owner CHONGQING UNIV
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