Fast charging safety protection management method and system based on pulse feedback

By detecting the battery voltage response curve using a pulse feedback method, and matching and optimizing charging parameters, the problem of balancing battery charging efficiency and safety during fast charging is solved. This achieves stable and safe monitoring of the battery charging process and improves the efficiency of safety protection management for fast charging.

CN122418944APending Publication Date: 2026-07-17ZHOUKOU NORMAL UNIV
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Patent Information

Application Number
CN202610602811.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-06
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing fast charging technologies cannot dynamically adjust charging parameters based on the real-time status of the battery, making it difficult to balance battery charging efficiency and lifespan. The accuracy of safety warnings and fault identification is insufficient, and safety risks such as thermal runaway and overcharging during fast charging cannot be effectively avoided.

Method used

The voltage response curve of the battery is obtained by low-voltage pulse detection. The pulse frequency reference value and initial duty cycle are matched, and the voltage peak attenuation rate and harmonic distortion characteristics are extracted. Multi-dimensional safety verification and weighted fusion are performed, and the duty cycle is adaptively adjusted to optimize the charging parameters.

Benefits of technology

It achieves stable operation and safety monitoring during battery charging, improves the efficiency of safety protection management for fast charging, ensures that key charging indicators are dynamically maintained within the safe range, and significantly improves the stability and reliability of the charging process.

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Abstract

本发明涉及电力储能技术领域,揭露了基于脉冲反馈的快速充电安全保护管理方法及系统,所述方法包括:对目标电池开展低压脉冲检测,获取其电压响应曲线;依据该曲线从预存历史充电数据中检索匹配的脉冲频率基准值与初始占空比,生成初始脉冲充电序列。同步提取序列的电压峰值衰减率和谐波畸变特征量,调取预设安全阈值库,将电压峰值衰减率与第一阈值进行幅值超差校验,将谐波畸变特征量与第二阈值开展畸变程度比对。对两类结果加权融合,得到脉冲参数修正向量,据此自适应调节初始占空比,获取占空比补偿系数。将补偿系数叠加至初始占空比以更新脉冲充电序列,迭代优化直至电压峰值衰减率与谐波畸变特征量均落入对应阈值界定的安全区间,实现电池脉冲充电参数的自适应修正与安全管控;本发明可以提高基于脉冲反馈的快速充电安全保护管理的效率。
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