Two-speed automatic gear shifting rear axle driving system for pure electric vehicles

A pure electric vehicle, automatic transmission technology, applied in electric vehicles, electric components, motors, etc., can solve the problems of high motor requirements and low motor operation efficiency, and achieve good production inheritance, reduced power loss, and good power performance. Effect

Inactive Publication Date: 2012-07-11
CHONGQING UNIV
View PDF7 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a two-speed automatic transmission rear axle drive system for pure electric vehicles. There are technical problems that the rear axle drive system has high requirements on

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
  • Two-speed automatic gear shifting rear axle driving system for pure electric vehicles
  • Two-speed automatic gear shifting rear axle driving system for pure electric vehicles

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] The present invention will be described in detail below with reference to the accompanying drawings: The two-speed automatic transmission rear axle drive system for a pure electric vehicle in this embodiment includes a motor 1 and a drive axle device, and the drive axle device includes a drive axle housing 2, which is fixedly arranged on the The drive axle input large gear 3 outside the drive axle housing 2, the main reducer differential assembly 4 arranged in the drive axle housing 2 and the two half shafts 5 for driving the wheels respectively, the drive axle device is a traditional The structure of the rear axle of the automobile has good inheritance and is beneficial to control the manufacturing cost. A two-speed automatic transmission is arranged between the motor 1 and the drive axle device, and the motor 1 inputs power to the drive axle device through the two-speed automatic transmission. The drive motor has good speed regulation characteristics. Therefore, in the...

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 discloses a two-speed automatic gear shifting rear axle driving system for pure electric vehicles, comprising a motor and a driving axle device, wherein the driving axle device comprises a driving axle shell, a driving axle input large gear which is fixedly arranged outside the driving axle shell, a main reducing gear differential assembly which is arranged in the driving axle shell and two half axles which are respectively used for driving wheels; and transmission is carried out between the motor and the driving axle device through a two-speed automatic transmission. As integrated improvement is carried out on the basis of a traditional rear axle, the system has gear shifting function and good succession; by means of the gear shifting function, the requirement for the motor can be reduced so as to reduce the manufacturing cost, and at the same time, the operating efficiency of the motor can be effectively improved so as to improve the power performance and the economical efficiency of the pure electric vehicles; and moreover, by adopting the two-speed transmission, the mass center of the whole rear axle driving system is conveniently controlled in the vicinity of the longitudinal axis of a vehicle, so that the influence caused by motor offset to vehicle maneuverability is avoided.

Description

technical field [0001] The invention relates to an automobile power system, in particular to a rear axle drive system of a pure electric automobile. Background technique [0002] As a non-emission, non-polluting, low-energy, environmentally friendly means of transportation, pure electric vehicles are the most ideal means of transportation in the 21st century. [0003] At present, the rear axle drive system of domestic pure electric vehicles generally adopts a reduction device with simple structure, low cost and fixed speed ratio. Due to the fixed speed ratio, to meet the requirements of various driving conditions, this kind of drive system has high requirements on the power and speed of the drive motor, which greatly increases the development cost of the vehicle. At the same time, there is also an unreasonable matching of the drive system. , the disadvantage of being unable to make the drive motor run more in the high-efficiency zone, the energy consumption increases, and t...

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): B60K17/14H02K7/116
CPCY02T10/641Y02T10/64
Inventor 胡建军杨志鹏吉毅
Owner CHONGQING UNIV
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