The invention relates to a method for determining a value of at least one parameter (SOC, K) of at least one battery cell of a battery (14) of a motor vehicle (10), the value of the at least one parameter (SOC, K) being determined on the basis of a characteristic curve family (18), a characteristic curve family is associated with the at least one battery cell and defines a relationship between a stabilized voltage (U) of the at least one battery cell and a state of charge (SOC) of the at least one battery cell for the at least one battery cell, the value of at least one parameter (SOC, K) being obtained repeatedly in successive time steps. In this case, it is checked whether a value of at least one parameter (SOC, K) obtained at least at one of the time steps satisfies a predetermined criterion, and the characteristic curve family (18) is adjusted at least if the predetermined criterion is not satisfied, depending on which at least a part of the characteristic curve family (18) is changed.

    本发明涉及一种用于获得机动车(10)的电池(14)的至少一个电池单体的至少一个参数(SOC、K)的值的方法,其中,根据特征曲线族(18)获得至少一个参数(SOC、K)的值,特征曲线族与所述至少一个电池单体相关联并且为所述至少一个电池单体定义在所述至少一个电池单体的稳定电压(U)和所述至少一个电池单体的荷电状态(SOC)之间的关系,其中,在先后的时间步中重复获得至少一个参数(SOC、K)的值。在此检查,至少在所述时间步中的一个时间步时获得的、至少一个参数(SOC、K)的值是否满足预确定的标准,并且至少在不满足预确定的标准的条件下,调整特征曲线族(18),根据所述调整改变特征曲线族(18)的至少一部分。


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    Title :

    Method for determining value of parameter of battery cell, control device and motor vehicle


    Additional title:

    用于确定电池单体的参数的值的方法、控制装置和机动车


    Contributors:

    Publication date :

    2022-05-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen