A battery management system according to the present invention comprises: a voltage sensor for generating a voltage signal indicating a voltage of a battery; a current sensor for generating a current signal indicating a current flowing through the battery; and a controller which records a voltage history and a current history of the battery, on the basis of the voltage signal and the current signal, at every predetermined time, while the battery is being charged with a constant current. The controller determines a differential capacity curve indicating a correspondence relationship between the voltage of the battery and the differential capacity within a reference voltage range. When a main feature point is detected from the differential capacity curve, the controller compares a first feature voltage of the main feature point with a reference voltage, and performs a first protection operation for the battery.

    Un système de gestion de batterie selon la présente invention comprend : un capteur de tension pour générer un signal de tension indiquant une tension d'une batterie ; un capteur de courant pour générer un signal de courant indiquant un courant circulant à travers la batterie ; et un dispositif de commande qui enregistre un historique de tension et un historique de courant de la batterie, sur la base du signal de tension et du signal de courant, à chaque instant prédéterminé, tandis que la batterie est chargée avec un courant constant. Le dispositif de commande détermine une courbe de capacité différentielle indiquant une relation de correspondance entre la tension de la batterie et la capacité différentielle dans une plage de tension de référence. Lorsqu'un point caractéristique principal est détecté à partir de la courbe de capacité différentielle, le dispositif de commande compare une première tension caractéristique du point caractéristique principal à une tension de référence, et effectue une première opération de protection pour la batterie.

    본 발명에 따른 배터리 관리 시스템은, 배터리의 전압을 나타내는 전압 신호를 생성하는 전압 센서; 상기 배터리를 통해 흐르는 전류를 나타내는 전류 신호를 생성하는 전류 센서; 및 상기 배터리가 정전류 충전되는 중, 소정 시간마다, 상기 전압 신호 및 상기 전류 신호를 기초로, 상기 배터리의 전압 이력 및 전류 이력을 기록하는 제어부를 포함한다. 상기 제어부는, 기준 전압 범위 내에서의 상기 배터리의 전압과 미분 용량 간의 대응 관계를 나타내는 미분 용량 커브를 결정한다. 상기 제어부는, 상기 미분 용량 커브로부터 메인 특징점이 검출되는 경우, 상기 메인 특징점의 제1 특징 전압과 기준 전압을 비교하여, 상기 배터리를 위한 제1 보호 동작을 실행한다.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

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


    Weitere Titelangaben:

    SYSTÈME DE GESTION DE BATTERIE, PROCÉDÉ DE GESTION DE BATTERIE, BLOC-BATTERIE ET VÉHICULE ÉLECTRIQUE
    배터리 관리 시스템, 배터리 관리 방법, 배터리 팩 및 전기 차량


    Beteiligte:
    CHA A-MING (Autor:in) / BAE YOON-JUNG (Autor:in) / JEONG HEE-SEOK (Autor:in)

    Erscheinungsdatum :

    2022-01-27


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES



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

    CHE AMING / BAE YOON-JUNG / JUNG HEE-SEOK | Europäisches Patentamt | 2022

    Freier Zugriff

    Battery Management System, Battery Management Method, Battery Pack and Electric Vehicle

    KIM JONG-WAN | Europäisches Patentamt | 2022

    Freier Zugriff

    BATTERY MANAGEMENT SYSTEM BATTERY MANAGEMENT METHOD BATTERY PACK AND ELECTRIC VEHICLE

    LEE BOM JIN | Europäisches Patentamt | 2021

    Freier Zugriff

    BATTERY MANAGEMENT SYSTEM BATTERY PACK ELECTRIC VEHICLE AND BATTERY MANAGEMENT METHOD

    HONG KYUNG SIK / KIM HYEON JIN / PARK GI SU et al. | Europäisches Patentamt | 2024

    Freier Zugriff

    Battery Management System, Battery Management Method, Battery Pack, and Electric Vehicle

    CHA A-MING / BAE YOON-JUNG / KIM DAE-SOO et al. | Europäisches Patentamt | 2023

    Freier Zugriff