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

Method and device for testing battery dynamic characteristics

A technology of dynamic characteristics and testing equipment, which is applied in the direction of measuring equipment, measuring electricity, measuring electrical variables, etc., can solve the problems of not being able to reflect the usage rules of the battery, and achieve the effects of saving experimental time, strong versatility, and easy operation

Active Publication Date: 2019-04-05
BEIJING MECHANICAL EQUIP INST
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a battery dynamic characteristic test method and device to solve the problem that the existing test method cannot reflect the actual use law of the battery under dynamic working conditions

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
  • Method and device for testing battery dynamic characteristics
  • Method and device for testing battery dynamic characteristics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to explain the principles of the present invention.

[0032] According to a specific embodiment of the present invention, a device for testing battery dynamic characteristics is disclosed, such as figure 1 As shown, the battery dynamic characteristic test device includes: a battery pack, a battery management system, a host computer, a controllable electronic load, a controllable high-power DC power supply, and a high and low temperature test box; specifically,

[0033] The control signal terminals of the battery management system, high and low temperature test box, controllable electronic load, and controllable high-power DC power supply are connected to the host computer through the CAN bus;

[0034] 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 relates to a method and a device for testing dynamic characteristics of a battery. The method comprises the following steps of generating a testing process file; controlling a high-precision charger and a high-precision load to sequentially and alternately charge and discharge at a set charge-discharge rate according to parameters in the process file by an upper computer; acquiring and storing voltage, total voltage, total current and temperature data of single batteries of a battery pack in real time through a battery management system, and displaying curves and a data table by the upper computer; finishing analysis on measurement data to generate a testing report. The method is simple and convenient to operate and high in generality; most dynamic characteristics of the battery can be excited quickly, systematically and comprehensively in a short time, and experiment time is greatly saved. Charge and discharge pulses with different duration times are adopted; in addition, pulse width accords with a normal distribution rule and an actual application rule of the battery, the dynamic characteristics of the battery under actual working conditions can be obtained under a laboratory environment.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a method and device for testing battery dynamic characteristics. Background technique [0002] With the depletion of fossil energy and the aggravation of environmental pollution, clean and environmentally friendly all-electric electric vehicles have been used more and more. As the main energy source of electric vehicles, the on-board power battery system is the core component of electric vehicles. Its operating status directly affects the performance of electric vehicles. The battery system is a very complex system, and its electrochemical reaction process presents a highly nonlinear characteristic, and some reaction mechanisms inside the battery have not yet been fully explored. In this case, it is very difficult to study related issues in this field only relying on the battery reaction mechanism, such as battery modeling, battery dynamic characteristics analysis, battery agi...

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 Patents(China)
IPC IPC(8): G01R31/396G01R31/385
CPCG01R31/382
Inventor 李勇徐晓彤孟祥适
Owner BEIJING MECHANICAL EQUIP INST
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