In various embodiments, there is provided a method for determining a capacity of a traction battery, the method comprising the steps of: causing and/or waiting for a predetermined period of time during which a battery current is below a threshold; selecting an OCV characteristic curve from a set of OCV characteristic curves (31-33, 41-43) based on at least two parameters (P1, P2,... Pn), where at least one parameter (P1) describes a cell characteristic of a cell used in the traction battery and at least one further parameter (P2) describes an operating parameter of the traction battery before and/or during the predetermined time period; determining an open circuit voltage of the traction battery after the predetermined time period has elapsed; a capacity of the battery is determined based on the selected OCV characteristic curve. Furthermore, a control device for a traction battery of a vehicle is provided, the control device being configured to execute the method according to the invention.

    在各种实施方案中,提供了一种用于确定牵引用电池的容量的方法,该方法包括以下步骤:导致和/或等待预定时间段,在该预定时间段期间电池电流低于阈值;基于至少两个参数(P1,P2,...Pn)从OCV特性曲线组(31‑33,41‑43)中选择OCV特性曲线,其中至少一个参数(P1)描述在牵引用电池中使用的电池单元的电池单元特性,并且至少一个另外的参数(P2)描述在预定时间段之前和/或在预定时间段期间牵引用电池的操作参数;在预定时间段已经过去之后确定牵引用电池的开路电压;基于所选择的OCV特性曲线来确定电池的容量。此外,提供了一种用于车辆的牵引用电池的控制装置,该控制装置被配置成执行根据本发明的方法。


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    Title :

    Method for determining capacity of HV battery


    Additional title:

    用于确定HV电池的容量的方法


    Contributors:

    Publication date :

    2024-04-19


    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



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