The invention relates to the technical field of new energy vehicle control, in particular to a battery pack health state estimation method. When a vehicle runs, the basic heat level of battery heat release is judged, the basic voltage level of the battery voltage is judged, and the basic temperature grade of the battery temperature is judged; when the vehicle does not run, vehicle parking environment parameters are obtained, and the temperature change trend grade of the battery temperature change trend, the heat change trend grade of the battery heat change trend and the voltage change trend grade of the battery voltage change trend are acquired and judged according to the vehicle parking environment parameters and the parking time; and the basic heat grade, the basic voltage grade, the basic temperature grade, the temperature change trend grade, the heat change trend grade and the voltage change trend grade are synthesized to obtain the health state of the battery pack. Vehicle driving data and standing environment data are adopted, and the health state of the vehicle in a standing state is estimated when the vehicle stops working.
本发明涉及新能源汽车控制技术领域,具体地指一种电池包健康状态估算方法。在汽车运行时,判断电池放热的基础热量等级;判断电池电压的基础电压等级;判断电池温度的基础温度等级;在汽车不运行时,获取汽车停车环境参数,根据汽车停车环境参数和停车时间获取判断电池温度变化趋势的温度变化趋势等级、判断电池热量变化趋势的热量变化趋势等级和判断电池电压变化趋势的电压变化趋势等级;综合基础热量等级、基础电压等级、基础温度等级、温度变化趋势等级、热量变化趋势等级和电压变化趋势等级得到电池包的健康状态。本发明采取车辆行驶数据和静置环境数据,在车辆停止工作时预算车辆处于静置状态的健康状态。
Battery pack health state estimation method
一种电池包健康状态估算方法
2020-10-30
Patent
Elektronische Ressource
Chinesisch
SYSTEM FOR ESTIMATION OF STATE OF HEALTH OF BATTERY PACK AND METHOD THEREOF
Europäisches Patentamt | 2023
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