A method of estimating a battery current limit for battery cell operation during a specified predicted time is disclosed. The method includes generating a plurality of current limit estimates by a plurality of current limit estimation sub-methods, where at least one current limit estimation sub-method generates its current limit estimate based on an RC equivalent circuit model of the battery cell, and determining the charging current limit by finding the current limit estimate of the lowest magnitude among the plurality of current limit estimates. At least one parameter of the RC equivalent circuit model is set based on a specified predicted time and at least one variable from a set of a state of charge (SOC) of the battery cell, a temperature of the battery cell, a state of health (SOH) of the battery cell, a capacity of the battery cell, and a current of the battery cell.

    本发明公开了一种在指定预测时间过程中估计用于电池单元操作的电池电流限制的方法。该方法包括通过多个电流限制估计子方法来生成多个电流限制估计,其中,至少一个电流限制估计子方法基于电池单元的RC等效电路模型来生成其电流限制估计,并且通过在多个电流限制估计中找到最低幅值的电流限制估计来确定充电电流限制。RC等效电路模型的至少一个参数是基于指定预测时间和来自以下集合中的至少一个变量来设置的:电池单元的充电状态(SOC)、电池单元的温度、电池单元的健康状态(SOH)、电池单元的容量、和电池单元的电流。


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    Title :

    Battery current limit estimation based on RC model


    Additional title:

    基于RC模型的电池电流限制估计


    Contributors:

    Publication date :

    2022-11-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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