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Speed regulating device of electric automobile

A technology of a speed control device and an electric vehicle, which is applied to the transmission device, gear transmission device, transmission device parts, etc., can solve the problems of complex structure, high cost, difficult control, etc., and achieves good shifting smoothness, simple structure, The effect of avoiding shock

Pending Publication Date: 2021-01-08
NANCHANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the common double-speed reduction device needs to control the clutch and brake at the same time in order to prevent power interruption during the gear shifting process. The reduction ratio of the structure is low, and the transmission ratio

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  • Speed regulating device of electric automobile
  • Speed regulating device of electric automobile
  • Speed regulating device of electric automobile

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] The invention provides a speed regulating device for an electric vehicle, comprising:

[0029] Motor 1, planetary gear set, first brake 5, second brake 6, third brake 7 and clutch 8;

[0030] The planetary...

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Abstract

The invention discloses a speed regulating device of an electric automobile. The speed regulating device comprises a motor, a first planetary gear, a second planetary gear, a third planetary gear, a first brake, a second brake, a third brake and a clutch, wherein the first planetary gear, the second planetary gear and the third planetary gear are the same in structure and are connected with one another through respective small sun gears; the motor is positioned at the same side of the first planetary gear and the third planetary gear; and the motor is fixedly connected with the first planetarygear, the second planetary gear and the third planetary gear separately. The speed regulating device is simple in structure, low in cost, small in control difficulty and large in speed reduction ratio, and the speed reduction ratio of a low-speed gear to a high-speed gear is greater than 1.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a speed regulating device for electric vehicles. Background technique [0002] At present, pure electric vehicles mostly use single-speed reduction devices. Although the structure is simple and the cost is low, it cannot take into account the power and economy of pure electric vehicles. The drive motor cannot always work in the high-efficiency zone, resulting in high energy consumption and low life of the drive motor. , The whole vehicle is manifested as: poor climbing, starting ability and high-speed performance. Therefore, the application of two-speed reducer is more suitable for pure electric vehicles. [0003] At present, the common double-speed reduction device needs to control the clutch and brake at the same time in order to prevent power interruption during the gear shifting process. The reduction ratio of the structure is low, and the transmission ratio of th...

Claims

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Application Information

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IPC IPC(8): F16H3/66F16H57/10F16H57/04F16D65/10F16D65/827
CPCF16D65/10F16D65/827F16H3/666F16H57/0417F16H57/0473F16H57/0484F16H57/10F16H2057/087F16H2200/0021F16H2200/0034F16H2200/2017F16H2200/2041
Inventor 肖悦林谋有初长宝高伟甘志梅
Owner NANCHANG INST OF TECH