Two-gear electromobile power assembly

A technology for electric vehicles and powertrains, applied in electric components, multi-ratio transmissions, electromechanical devices, etc., can solve problems such as difficulty in single-speed ratio reduction devices, reduced driving range, and shortened battery life, etc., to meet the requirements of The effects of low-speed climbing and high-speed driving performance requirements, increased driving range, and extended battery life

Inactive Publication Date: 2016-06-01
JIANGSU OURUIGE TRANSMISSION PARTS CO LTD
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the single-speed ratio reduction device is difficult to meet the performance requirements of high-speed driving (above 120km / h) and low-speed climbing (above 25% slope)
To meet high-speed requirements, the motor speed must be increased, which increases the cost of the motor and reduces reliability
However, when starting at low speed or climbing a hill, the motor current is too large, which brings a series of disadvantages such as low efficiency, reduced driving range, increased controller manufacturing cost, and shortened battery life.

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-gear electromobile power assembly
  • Two-gear electromobile power assembly
  • Two-gear electromobile power assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0032] Such as Figure 1 to Figure 3 As shown, the two-speed electric vehicle power assembly includes an input shaft group 1 , a ring gear 2 , a sun gear 3 , an output shaft group 4 and a first-speed brake 5 . The input shaft group 1 , the ring gear 2 , the sun gear 3 , the output shaft group 4 and the first gear brake 5 are all arranged in a housing 6 , and the housing is usually made of a casting.

[0033] Such as Figure 4 As shown, the input shaft assembly 1 includes an input shaft 11 and a second gear clutch hub 12 , and the input shaft 11 is connected with an electric motor 7 . The motor 7 is a permanent magnet synchronous motor. The per...

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-gear electromobile power assembly which comprises a housing. An input shaft set, a gear ring, a sun gear, an output shaft set, a first-gear brake and an electric hydraulic controller are arranged in the housing. According to the two-gear electromobile power assembly, two forward gears are freely switched through an electronic control hydraulic system, and the requirement of an electromobile is met under different road surface conditions without cutting off power. The two-gear electromobile power assembly enables a permanent magnet synchronous motor and a two-gear automatic gearbox to be effectively combined together, and has the advantages of small size, simple structure, low production cost, high transmission efficiency, increased driving range, long battery service life and the like.

Description

technical field [0001] The invention relates to an electric vehicle, more precisely, a power assembly of a two-speed electric vehicle. Background technique [0002] Electric vehicles have no exhaust gas produced by internal combustion engine vehicles, and do not produce exhaust pollution. They are very beneficial to environmental protection and air cleanliness, and are almost "zero pollution". Existing pure electric vehicles generally use a reduction gear with a single speed ratio. When the car starts or climbs a slope, the power output by the drive motor must pass through a large reduction ratio to obtain enough torque to drive the car, but when driving at high speed, the car needs a small reduction ratio to make the vehicle reach the highest speed. speed requirements. It is difficult to meet the performance requirements of high-speed driving (above 120km / h) and low-speed climbing (above 25% slope) due to the single-speed ratio deceleration device. To meet high-speed r...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/70H02K7/116H02K7/112
CPCF16H3/70F16H2200/0021F16H2200/0034F16H2200/2005F16H2200/2035H02K7/112H02K7/116
Inventor 楚文力张文阁张宝华姜杰侯文阔才利
Owner JIANGSU OURUIGE TRANSMISSION PARTS 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