基于实车行驶数据的某型号纯电动汽车健康状态模型研究

State of health evaluation based on running data of a battery electric vehicle

本文基于某型号纯电动汽车实车行驶数据,使用数据挖掘技术展开分析,进行包括相关性分析、行驶片段划分、异常值和缺失值处理在内的研究,然后使用安时法得到电池容量,考虑温度及放电电流的影响对容量值进行修正,最后得到该型号纯电动汽车动力电池健康状态模型。

In this paper, research of State of Health has been made based on the driving data of a battery electric vehicle. Data mining techniques are used including correlation analysis, driving segment division, outlier and missing value processing. Then the battery capacity is obtained by adopting the Ampere Hour method. Considering the influence of temperature and discharge current, the battery capacity has been amended. Finally, SOH model of the battery electric vehicle has been built.