본 발명은, 배터리에 대한 복수의 정전류 충전에서 획득되는 복수의 배터리 충전 정보를 저장하는 저장부 및 상기 복수의 배터리 충전 정보 중 목표 초기 SOC와 동일한 초기 SOC를 갖는 복수의 배터리 충전 정보를 독출하고, 상기 독출한 복수의 배터리 충전 정보 중 목표 정전류에 일치하는 정전류에 대응하는 배터리 충전 정보가 있는지 판단하며, 상기 판단 결과 상기 목표 정전류에 일치하는 정전류에 따른 배터리 충전 정보가 없을 때 상기 목표 정전류에 인접한 두 개의 정전류에 대응하는 두 개의 배터리 충전 정보를 이용하여 상기 목표 초기 SOC 및 상기 목표 정전류 충전에 따른 상기 배터리의 내부 저항을 추정하는 제어부를 포함한다.

    The present invention relates to an apparatus and method for estimating the internal resistance of a battery. The apparatus for estimating the internal resistance of a battery, according to an embodiment of the present invention, comprises: a storage unit that stores a plurality of pieces of battery charging information obtained during a plurality of constant current charging of a battery; and a control unit that reads a plurality of pieces of battery charging information having the same initial SOC as a target initial SOC from among the plurality of pieces of battery charging information, determines whether there is battery charging information corresponding to a constant current matching a target constant current from among the plurality of pieces of read battery charging information, and when a result of the determination is that there is no battery charging information according to the constant current matching the target constant current, estimates the internal resistance of the battery according to the target initial SOC and the target constant current charging by using two pieces of battery charging information corresponding to two constant currents adjacent to the target constant current.


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    Title :

    APPARATUS AND METHOD OF ESTIMATING THE BATTERY INTERNAL RESISTANCE


    Additional title:

    배터리 내부 저항 추정 장치 및 방법


    Publication date :

    2025-06-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

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



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