The invention discloses a driving range estimation method based on unit electric quantity stroke and battery aging correction. The driving range estimation method mainly comprises four steps of battery SOC online estimation, battery SOH regular updating, unit SOC stroke estimation and driving range estimation. According to the method, the SOC estimation of the battery is corrected by utilizing the regular SOH estimation of the battery, the accurate driving range estimation is realized by combining the unit SOC stroke estimation, and the method has the advantages of simple model structure, small calculation amount, high estimation precision and easiness in realization of a vehicle-mounted BMS (Battery Management System); under the daily driving working condition, the maximum estimation error of the driving range is within 3 km, and the operation requirement of the electric vehicle is met.
基于单位电量行程和电池老化修正的续驶里程估计方法,主要包括电池SOC在线估计、电池SOH定期更新、单位SOC行程估计、续驶里程估计4个步骤;本发明利用定期的电池SOH估计校正电池的SOC估计,结合单位SOC行程估计实现准确的续驶里程估计,具有模型结构简单,计算量小,估计精度高,易于车载BMS实现;在日常行驶工况下,本发明的续驶里程最大估计误差在3km以内,满足电动车辆的运行需求。
Driving range estimation method based on unit electric quantity stroke and battery aging correction
基于单位电量行程和电池老化修正的续驶里程估计方法
2023-12-08
Patent
Electronic Resource
Chinese
Electric vehicle driving range estimation method based on battery aging level
European Patent Office | 2023
|Electric vehicle electric quantity driving range evaluation method
European Patent Office | 2024
|European Patent Office | 2025
|Current sensor and power battery electric quantity estimation method
European Patent Office | 2023
|European Patent Office | 2025
|