The invention provides an EKF state relay strategy in battery online identification. A vehicle includes a battery and a controller. The controller is programmed to executed a parameter estimation strategy for the battery during time intervals when the current flowing through the battery is sufficiently dynamic. During periods of generally constant current, the parameters are derived from the last valid parameters from the parameter estimation strategy. During periods of generally constant current in which a battery temperature and/or a state of charge of the battery changes by a predetermined amount, the parameters are derived from historical parameter values.
本公开提供了“电池在线识别中的EKF状态中继策略”。一种车辆,包括电池和控制器。所述控制器被编程为:在流过所述电池的电流足够动态的时间间隔期间对所述电池执行参数估计策略。在大体恒定电流时段期间,从来自所述参数估计策略的最后有效参数推导参数。在所述电池的电池温度和/或荷电状态改变预定量的大体恒定电流时段期间,从历史参数值推导所述参数。
EKF STATE RELAY STRATEGY IN BATTERY ONLINE IDENTIFICATION
电池在线识别中的EKF状态中继策略
2021-06-22
Patent
Electronic Resource
Chinese
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