Electric vehicle charging completion battery heat preservation control system

A charging completion, electric vehicle technology, applied in electric vehicles, battery/fuel cell control devices, secondary batteries, etc., can solve the problems that affect the service life of the battery, the mileage of the car, the temperature drop of the battery, etc.

Active Publication Date: 2021-01-05
重庆长安新能源汽车科技有限公司
View PDF19 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] It is necessary to develop a control system that continuously heats or keeps the battery warm after the charging of the electric vehicle is completed, so as to avoid the temperature

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
  • Electric vehicle charging completion battery heat preservation control system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018]Attached belowfigure 1The present invention will be described in detail.

[0019]The electric vehicle is charged to complete the battery insulation control system, including the charging gun, the vehicle system, the heating system, the battery management system and the battery cell; work as follows:

[0020]Step 1) After the charge reaches the fully charged state or reaches the designed target charge capacity SOC, the vehicle system controls the heating system and the battery management system to maintain the power-on state; if the charging gun is not connected, go to step 2); otherwise, go to step 3. );

[0021]Step 2) The whole vehicle system controls the heating system and the battery management system to power off and sleep; after that, go to step 5);

[0022]Step 3) The battery management system obtains and judges the highest temperature T of the battery cellmax , The lowest temperature Tmin , Ambient temperature T0And set target temperature Tt;

[0023]Step 31) If the ambient temperatu...

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 an electric vehicle charging completion battery thermal insulation control system, which is characterized in that after charging reaches a full charging state or reaches a designed target charging charge capacity SOC, a heating system is kept in a power-on state; and whether the heating system is started is judged according to the connection state of the charging gun, the temperature Ti of the single battery, the environment temperature T0 and the set target temperature Tt. Multi-state monitoring of the battery is started through judgment of the charging gun, the singlebattery temperature and the environment temperature state, and the situation that the service life of the battery is shortened and the endurance mileage of the battery is reduced due to the fact thatthe battery temperature is reduced after charging is completed is avoided.

Description

technical field [0001] The invention relates to the field of new energy electric vehicles, in particular to a battery insulation control system for electric vehicles after charging. Background technique [0002] With the increasingly serious environmental pollution and energy crisis, the development and application of electric vehicles has attracted more and more attention. Lithium-ion batteries are used in electric vehicles because of their advantages such as high energy density, long life, and no memory effect. The only power source is widely used. However, the performance of lithium-ion batteries is significantly affected by temperature. Under low temperature conditions, the performance of the battery will decrease, which will cause a certain attenuation of the driving process of the car. Using the battery for a long time at low temperature will affect the battery life. also have a greater impact. Therefore, it is of great significance to develop a thermal management sys...

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): B60L58/12B60L58/24B60L58/27H01M10/615H01M10/625H01M10/635
CPCB60L58/12B60L58/24B60L58/27H01M10/615H01M10/625H01M10/635Y02T10/70Y02E60/10
Inventor 江振文李连兴洪木南
Owner 重庆长安新能源汽车科技有限公司
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