배터리 관리 시스템, 배터리 팩, 전기 차량 및 배터리 관리 방법이 제공된다. 상기 배터리 관리 시스템은, 전류 레이트에 따라 전압 변곡 구간이 변화하는 특성을 갖는 배터리의 단자 전압 및 충방전 전류를 검출하는 센싱부, 상기 배터리의 등가 회로 모델 및 SOC-OCV 커브를 이용하는 제1 칼만 필터 및 상기 배터리의 정전류 충방전 맵을 이용하는 제2 칼만 필터를 저장하는 메모리부, 및 상기 제1 칼만 필터에 상기 단자 전압의 전압값, 상기 충방전 전류의 전류값 및 전 회의 SOC 추정값을 입력하여 제1 SOC 추정값을 결정하고, 상기 제2 칼만 필터에 상기 전류값 및 상기 전 회의 SOC 추정값을 입력하여 제2 SOC 추정값을 결정하는 제어부를 포함한다.

    There are provided a battery management system, a battery pack, an electric vehicle and a battery management method. The battery management system includes a sensing unit to detect a terminal voltage and a charge/discharge current of a battery having a characteristic that a voltage variation section changes depending on a current rate, a memory unit to store a first Kalman filter using an equivalent circuit model and a state of charge (SOC)-open circuit voltage curve of the battery and a second Kalman filter using a constant current charge/discharge map of the battery, and a control unit to determine a first estimated SOC by inputting a voltage value of the terminal voltage, a current value of the charge/discharge current and an estimated SOC in a previous cycle to the first Kalman filter, determine a second estimated SOC by inputting the current value and the estimated SOC in the previous cycle to the second Kalman filter.


    Access

    Download


    Export, share and cite



    Title :

    BATTERY MANAGEMENT SYSTEM BATTERY PACK ELECTRIC VEHICLE AND BATTERY MANAGEMENT METHOD


    Additional title:

    배터리 관리 시스템, 배터리 팩, 전기 차량 및 배터리 관리 방법


    Contributors:

    Publication date :

    2025-01-03


    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




    BATTERY MANAGEMENT SYSTEM, BATTERY MANAGEMENT METHOD, BATTERY PACK, AND ELECTRIC VEHICLE

    CHA A-MING / BAE YOON-JUNG / KIM DAE-SOO et al. | European Patent Office | 2025

    Free access

    Battery management system, battery pack, electric vehicle and battery management method

    KIM YOUNG-MIN / KIM CHEOL-TAEK / SUNG YONG-CHUL | European Patent Office | 2025

    Free access

    BATTERY MANAGEMENT SYSTEM, BATTERY PACK, ELECTRIC VEHICLE, AND BATTERY MANAGEMENT METHOD

    HONG KYUNG-SIK / KIM HYEON-JIN / PARK GI-SU et al. | European Patent Office | 2024

    Free access

    Battery management system, battery management method, battery pack, and electric vehicle

    NAM GI-MIN / KIM HYUNG-SEOK / JOE WON-TAE et al. | European Patent Office | 2023

    Free access