A method for estimating a charge state of a battery comprises: a step of setting a charge state initial value and Kalman error covariance initial value; a step of a G parameter estimation value, present current value, and present voltage value of the battery; a step of updating a present charge state value and present Kalman error covariance initial value by inputting the G parameter estimation value, present current value, and present voltage value to an extended Kalman filter; and a step of outputting the present charge state value.

    배터리의 충전상태를 추정하는 방법은 충전상태 초기값 및 칼만 오차공분산 초기값을 설정하는 단계, 상기 배터리의 G 파라미터 추정값, 전류 현재값, 및 전압 현재값을 수신하는 단계, 확장 칼만 필터에 상기 G 파라미터 추정값, 상기 전류 현재값, 및 상기 전압 현재값을 입력하여, 상기 배터리의 충전상태 현재값과 상기 칼만 오차공분산 현재값을 갱신하는 단계, 및 상기 충전상태 현재값을 출력하는 단계를 포함한다.


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    Title :

    Method for estimating state of charge of battery


    Additional title:

    배터리의 충전상태를 추정하는 방법


    Contributors:

    Publication date :

    2022-03-18


    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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