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An automatic transmission device for an electric vehicle

An automatic transmission device and electric vehicle technology, applied in the field of automobile transmission, can solve problems such as high cost of use, complex hydraulic control structure, and difficult manufacturing, and achieve the effects of high power transmission efficiency, light weight, and compact structure

Active Publication Date: 2021-06-25
FUJIAN ZHONGQING AUTOMOBILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is: the hydraulic control structure in the multi-gear gearbox of the existing electric vehicle is relatively complicated, the manufacture is difficult, and the use cost is high

Method used

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  • An automatic transmission device for an electric vehicle
  • An automatic transmission device for an electric vehicle

Examples

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Effect test

Embodiment 1

[0054] An automatic transmission device for an electric vehicle, comprising a planetary gear mechanism 1, an output shaft 2, a first clutch 3, a second clutch 4 and a shift mechanism 5 arranged in a housing 6;

[0055] The output shaft 2 is driven by a motor 7 through a planetary gear mechanism 1;

[0056] The shift mechanism 5 controls the linkage switching between the first clutch 3 and the second clutch 4, and the linkage switching between the first clutch 3 and the second clutch 4 controls the locking and unlocking of the planetary gear mechanism 1 so as to realize two switch between gears;

[0057] The planetary gear mechanism 1 includes a first sun gear 11, a second sun gear 12, a planetary gear and a planet carrier 15. The first sun gear 11 is sheathed on the output shaft 2 and is rotationally connected with the output shaft 2. The first sun gear 11 is driven by the motor 7, and one end of the first sun gear 11 and the planetary gear meshes with each other, and the oth...

Embodiment 2

[0066] An automatic transmission device for an electric vehicle, comprising a planetary gear mechanism 1, an output shaft 2, a first clutch 3, a second clutch 4 and a shift mechanism 5 arranged in a housing 6;

[0067] The output shaft 2 is driven by a motor 7 through a planetary gear mechanism 1;

[0068] The shift mechanism 5 controls the linkage switching between the first clutch 3 and the second clutch 4, and the linkage switching between the first clutch 3 and the second clutch 4 controls the locking and unlocking of the planetary gear mechanism 1 so as to realize two switch between gears;

[0069] The planetary gear mechanism 1 includes a first sun gear 11, a second sun gear 12, a planetary gear and a planet carrier 15. The first sun gear 11 is sheathed on the output shaft 2 and is rotationally connected with the output shaft 2. The first sun gear 11 is driven by the motor 7, and one end of the first sun gear 11 and the planetary gear meshes with each other, and the oth...

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Abstract

The invention relates to the technical field of automobile transmission, in particular to an automatic transmission device for an electric vehicle, which comprises a planetary gear mechanism, an output shaft, a first clutch, a second clutch and a shift mechanism arranged in a housing. The automatic transmission device for electric vehicles provided by the present invention can realize the linkage switching between two clutches by manipulating a gear shifting mechanism, and has low requirements on the operating accuracy of the gear shifting mechanism. The use of release bearings avoids the complex mechanism of hydraulic shifting, and realizes the advantages of simple manufacturing, low cost, and high reliability; when the second gear is locked, all planetary gear mechanisms are locked, there is no loss of gear meshing efficiency, and the overall power transmission efficiency is high; High load capacity; light weight, compact structure, few parts, easy maintenance.

Description

technical field [0001] The invention relates to the technical field of automobile transmission, in particular to an automatic transmission device for an electric automobile. Background technique [0002] With the development of the new energy vehicle industry, electric vehicles need to adapt to more road conditions and have a longer cruising range. At present, most of the transmission parts of electric vehicles are only equipped with fixed speed ratio gearboxes. The fixed speed ratio gearboxes put forward high requirements for the design of the drive motor. High torque, high efficiency under high-speed working conditions, high quietness and so on. This is difficult to meet simultaneously under the existing actual motor technology conditions, and it must be matched with a multi-speed gearbox to meet the needs of electric vehicles. [0003] Compared with the fixed speed ratio gearbox, the multi-speed gearbox has less power output loss and can greatly improve the power output...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/46F16H61/30F16H61/32F16H61/36
CPCF16H3/46F16H61/30F16H61/32F16H61/36F16H2061/326
Inventor 陈帆蔡有建
Owner FUJIAN ZHONGQING AUTOMOBILE TECH CO LTD
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