The invention provides a battery heating parameter determination method, a power battery heating method, a motor controller, a power system, a vehicle and a storage medium. The battery heating parameter determination method comprises the steps that the maximum voltage amplitude and the initial voltage frequency of target square wave voltage are determined based on the battery end voltage and the maximum phase current; determining a plurality of voltage adjustment frequencies according to a preset rule by taking the initial voltage frequency as a reference, and determining a voltage amplitude corresponding to each voltage adjustment frequency; each voltage adjustment frequency and the corresponding voltage amplitude form a parameter group of the target square wave voltage; for each parameter group, based on the heating current and the maximum motor heating duration, determining heating energy which can be provided for the power battery by target square wave voltage corresponding to the parameter group; and based on the heating energy corresponding to each parameter group, determining the parameter group corresponding to the maximum heating energy as a target parameter group of the target square wave voltage. According to the embodiment of the invention, the battery heating efficiency can be improved.
本公开提供一种电池加热参数的确定方法、动力电池的加热方法、电机控制器、动力系统、车辆及存储介质,该电池加热参数的确定方法包括:基于电池端电压以及最大相电流确定目标方波电压的最大电压幅值以及初始电压频率;以初始电压频率为基准按照预设规则确定多个电压调整频率,并确定每个电压调整频率分别对应的电压幅值;每个电压调整频率及对应的电压幅值形成目标方波电压的一个参数组;针对每个参数组,基于加热电流以及最大电机加热时长,确定参数组对应的目标方波电压能够为动力电池提供的加热能量;基于各个参数组分别对应的加热能量,将最大加热能量对应的参数组确定为目标方波电压的目标参数组。本公开实施例,可以提升电池加热的效率。
Battery heating parameter determination method, controller, system, vehicle and medium
电池加热参数的确定方法、控制器、系统、车辆及介质
2024-03-22
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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