Automatic transmission device for electric vehicle

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

Active Publication Date: 2020-06-05
FUJIAN ZHONGQING AUTOMOBILE TECH CO LTD
View PDF7 Cites 0 Cited by
  • 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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Automatic transmission device for electric vehicle
  • Automatic transmission device for electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0053] Example one:

[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 shifting 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 opening of the planetary gear mechanism 1 to achieve both Switch between different positions;

[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 sleeved on the output shaft 2 and is rotatably connected with the output shaft 2. The first sun gear 11 is driven by the motor 7. One end of the first sun gear 11 meshes with the planet gear, the other e...

Example Embodiment

[0065] Embodiment two:

[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 shifting 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 opening of the planetary gear mechanism 1 to achieve both Switch between different positions;

[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 sleeved on the output shaft 2 and is rotatably connected with the output shaft 2. The first sun gear 11 is driven by the motor 7. One end of the first sun gear 11 meshes with the planet gear, the othe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the technical field of automobile transmission, in particular to an automatic transmission device for an electric vehicle. The automatic transmission device comprises a planetary gear mechanism, an output shaft, a first clutch, a second clutch and a gear shifting mechanism which are arranged in the shell. According to the automatic transmission device for the electric vehicle, linkage switching between the two clutches can be realized by manipulating one gear shifting mechanism, the requirement on the operation precision of the gear shifting mechanism is low, and meanwhile, a pressure plate and a lifting plate have no rotation speed difference, so that the use of a release bearing is avoided, and also the complex mechanism of the hydraulic gear shift is avoided; the manufacturing is simple, the cost is low, the reliability is high, and the like; and each planetary gear mechanism is simultaneously locked in the second gear, so that no gear meshing efficiency loss is achieved, and the overall power transmission efficiency is high; the automatic transmission device has high bearing capacity; and the weight is light, the structure is compact, the number of parts is small, and the maintenance is simple.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap