电池管理系统SOC估算方法研究进展

摘要

随着电动汽车的快速发展,动力电池荷电状态估算越来越重要,其主要作用与传统的燃油汽车油量表一样,能够给驾驶员传递电池剩余电量的信息,并告知驾驶员汽车接下来的续航里程,从而能够有效提高电动汽车的整体性能.介绍了电池荷电状态一般定义、主要影响因素以及动力电池的等效模型;详细介绍了目前国内外用于估算SOC的主流方法以及各方法取得的结果,并总结了电池SOC估算方法.%With the rapid development of electric vehicles,state of charge estimation of power battery becomes more and more important,its main function is the same as the traditional oil meter,and it can deliver battery state of charge information to the driver and inform the driver the car's next range,which can effectively improve the overall performance of the electric car.The battery state of charge general definition,main influencing factors and equivalent model of power battery were introduced.The domestic and foreign mainstream methods used to estimate the SOC and the obtained results of each method were introduced,and SOC estimation methods of the battery were summarized.