Storage battery health condition quantitative method and system

A technology of health status and quantitative methods, applied in the direction of measuring electrical variables, measuring electricity, measuring devices, etc., can solve problems such as limitations, achieve perfect functions, facilitate daily maintenance, detection and evaluation, and reduce the probability of sudden changes in battery performance Effect

Active Publication Date: 2018-05-15
株洲广锐电气科技有限公司 +1
View PDF9 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The evaluation of battery performance mainly relies on the SOC estimation of the battery management system and the measurement of the voltage of the battery pack, the battery temperature, the voltage difference between the single cells, and the temperature difference of the battery pack. The evaluation basis is relatively limited, and this This evaluation method is very dependent on the knowledge and experience level of professional and technical personnel

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
  • Storage battery health condition quantitative method and system
  • Storage battery health condition quantitative method and system
  • Storage battery health condition quantitative method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This embodiment discloses a method for quantifying battery health status, including:

[0021] Taking the charging rate as the core, and considering the internal resistance of the battery, remaining power and temperature factors, the health status SOH evaluation model is constructed as follows:

[0022]

[0023] Among them, λ is the charging rate correction constant, C(t) is the actual charging rate, C is the ideal charging rate, ε is the weight coefficient of the evaluation method based on the charging rate, and α is the weight coefficient of the evaluation method based on the internal resistance of the battery , β is the weight coefficient of the evaluation method based on the remaining battery power, SOC(t) is the measured capacity of the battery in the current charging state, SOC is the nominal capacity of the battery, and δ is the weight coefficient of the evaluation method based on the battery charging temperature, T 平均 is the average temperature of the battery...

Embodiment 2

[0029] Corresponding to the above method, this embodiment discloses a battery health status quantification system, including a memory, a processor, and a computer program stored in the memory and operable on the processor, wherein the processor implements the above-mentioned method steps.

[0030] To sum up, the effective evaluation method and system for the battery health status disclosed in the embodiments of the present invention comprehensively evaluates various factors affecting battery performance, can more accurately evaluate the health status of the battery, and at the same time effectively reduces the battery's later use process. The probability of sudden changes in battery performance is convenient for evaluating the performance status and service life of the battery pack. At the same time, this evaluation method can be integrated in the battery management system to improve the functions of the battery management system and facilitate the battery management system to ...

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 the technical field of storage battery detection, and discloses a storage battery health condition quantitative method and system, so that the function of a battery managementsystem is improved, and the battery management system can conveniently evaluate the battery state in real time. The method comprises the steps that the charging speed is taken as a core, and the internal resistance of the battery, the residual electric quantity and the temperature factor are integrated, the health of the battery is comprehensively evaluated through an analytic hierarchy process.According to the effective method and system for evaluating the battery health state, various factors influencing the battery performance are comprehensively evaluated, and meanwhile, the probabilityof battery performance sudden change in the later use process of the battery is effectively reduced, the performance state and the service life of the battery pack can be evaluated conveniently, the evaluation method can be integrated in a battery management system, the functions of the battery management system are improved, and the battery management system is facilitated to carry out daily maintenance detection and evaluation on the battery state in real time.

Description

technical field [0001] The invention relates to the technical field of storage battery detection, in particular to a method and system for quantifying the health status of a storage battery. Background technique [0002] Battery state of health (SOH) assessment, as one of the key tasks of battery state assessment, has attracted more and more attention from researchers at home and abroad. [0003] At present, the common methods for evaluating the health status of vehicle power batteries are all realized by estimating and identifying the internal parameters of the battery. It is mainly divided into the following two categories: one is to evaluate the battery health status by estimating the rated capacity of the battery, and the other is to evaluate the battery health status by estimating the internal resistance of the battery. However, it is difficult to obtain the accurate rated capacity and internal resistance of the battery in practice, and it is difficult to obtain practi...

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): G01R31/36
CPCG01R31/36
Inventor 王吉桥丁带劲谢飞余楚伟郑斌刘锡斌
Owner 株洲广锐电气科技有限公司
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