纯电动汽车电池管理系统SOC估算策略优化

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中图分类号：U469.72 文献标识码：A 文章编号：1003-8639（2026）03-0036-0：

【Abstract】With the rapid growth of new energy vehicles，accurate estimation of the State of Charge （SOC）of power bateries has become thecore technical bottleneck of the Batery Management System （BMS）.The traditional estimation method is prone to cumulative error and precision atenuation in complex working conditions，wide temperature range environment and battery aging scenarios，which directlyaffects thereliabilityof vehicle cruising rangeand battry safety boundarycontrol.Therefore，this paper willexplore theconstructionof an SOC estimation model with strong environmental adaptability，and design highandlow temperature bench test andreal vehicle verification.Theresearch proves that the optimization strategycan effectively improve the stabilityof SOC estimation under extreme working conditions and significantly improve the reliabilityof electricity early warning.

【Key words】 pure electric vehicle；Batery Management System;State of Charge;multi-algorithm fusion

0 引言

动力电池健康状态与剩余电量的精准量化，是保障用户续航体验、强化电池安全防护、提升整车能源管理效能的核心前提。（剩余3127字）