Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Thermal management method, system and device of battery

A battery thermal management and thermal management technology, applied in secondary batteries, battery temperature control, secondary battery repair/maintenance, etc., can solve problems such as safety hazards, temperature conduction lag, and inability to collect battery temperature, etc., to achieve thermal management control Accuracy, wide application value, and the effect of avoiding potential safety hazards

Active Publication Date: 2011-07-13
CHERY AUTOMOBILE CO LTD
View PDF2 Cites 40 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the cooling of the battery pack, since the internal temperature of the battery cells cannot be collected, the temperature obtained can only be the temperature of the battery pack, that is, the temperature on the surface of the battery cells. There is a lag in temperature conduction, which cannot truly reflect the internal temperature of the battery cells. There are certain security risks

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
  • Thermal management method, system and device of battery
  • Thermal management method, system and device of battery
  • Thermal management method, system and device of battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The core idea of ​​the present invention is to control the heat of the battery pack under working conditions according to the temperature value and temperature rise rate of the battery cells and the average temperature value and temperature rise rate of the battery pack as references.

[0025] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0026] Such as figure 1 As shown, it is a schematic flow chart of a battery thermal management method proposed by the present invention, the method includes the following steps:

[0027] In step s...

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 provides a thermal management method, system and device of a battery. The method comprises the steps of: collecting the temperature of each single battery in a battery pack and calculating the temperature rising rate of the each single battery, the average temperature of the battery pack and the temperature rising rate of the battery pack; and when any one of the temperature of eachsingle battery, the temperature rising rate of the each single battery, the average temperature of the battery pack and the temperature rising rate of the battery pack is higher than the corresponding heat dissipation threshold value, carrying out heat dissipation on the battery pack. In the invention, the temperature value and the temperature rising rate of the single battery as well as the average temperature value and the temperature rising rate of the battery pack are used as references and the heat quantity of the battery pack under a working state is controlled to ensure that the thermal management can be controlled more accurately and the potential safety hazard can be eliminated.

Description

technical field [0001] The present invention relates to the technical field of BMS (Battery Management System, battery management system), in particular to a battery thermal management method, system and device. Background technique [0002] Vehicles utilizing gasoline internal combustion engines or diesel internal combustion engines have caused severe air pollution. Accordingly, various recent efforts to develop electric vehicles or hybrid vehicles have focused on reducing air pollution. In current hybrid vehicles and pure electric vehicles, the high-voltage power source is usually composed of several battery packs in series, and the output voltage is as high as hundreds of volts, which is far beyond the safe voltage that the human body can withstand. In order to use the battery reliably and safely, and improve the performance and service life of the battery, the battery management system needs to control the battery to work within a reasonable temperature range. Therefor...

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): H01M10/42H01M10/50H01M10/613H01M10/625H01M10/63
CPCY02E60/12Y02E60/10
Inventor 徐贤张涛
Owner CHERY AUTOMOBILE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com