Battery operating state visualization system and method based on polarization resistance detection

By detecting polarization internal resistance during battery discharge, collecting and analyzing operating status data, determining load switching commands and capacity deviation values, accurate assessment and visualization under dynamic operating conditions are achieved. This solves the problem of inaccurate assessment in existing technologies and improves the accuracy and operability of battery operating status assessment.

CN121348092BActive Publication Date: 2026-06-26SHENZHEN ZHONGKUN INTELLIGENT TECH CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN ZHONGKUN INTELLIGENT TECH CO LTD
Filing Date
2025-12-16
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing methods for visualizing battery operating status based on polarization internal resistance detection fail to accurately assess the conditions under dynamic discharge and variable load capacity conditions. This results in a lack of adaptability to load switching commands, difficulty in locating the inflection point of variable load attenuation, and insufficient coverage of equalization response rules, making it difficult to truly reflect the dynamic health status and operational risks of the battery.

Method used

During the battery discharge process, polarization internal resistance test based on fault prediction is performed, operating status data is collected, the resistance failure value and steady-state excitation characteristics are determined through utility identification, a capacity health profile is obtained, the load switching command and the core capacity deviation value are determined, and alternating test and visualization based on fault prediction are performed.

Benefits of technology

It improves the accuracy of battery operating status assessment, solves the problem of disconnect between static operating condition test data and dynamic discharge load, ensures load switching adaptability and accurate positioning of the load attenuation inflection point, and improves the reliability of equalization control and operation and maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121348092B_ABST
    Figure CN121348092B_ABST
Patent Text Reader

Abstract

The application provides a battery operation state visualization system and method based on polarization internal resistance detection, relates to the technical field of battery condition testing, determines corresponding resistance failure values and steady-state excitation characteristics of the battery in discharge before and after seamless cross connection, determines the load switching instruction of the battery during load operation test from the resistance failure values and the steady-state excitation characteristics; performs step-by-step determination on the capacity health portrait to obtain the core capacity deviation value of the charge capacity of the battery when the polarization internal resistance changes, determines the variable load attenuation inflection point of the operation state of the battery when jumping the host core capacity from the core capacity deviation value; and then performs alternating test on the equalization response rule of the battery in different operation conditions based on fault prediction, and visually displays the test results. The application can perform alternating test and visualization on the equalization response rule based on fault prediction under the dynamic discharge and variable load core capacity conditions, so as to improve the accuracy of the battery operation state evaluation.
Need to check novelty before this filing date? Find Prior Art