본 발명은 전기자동차의 침수 상태를 감지하여 배터리 팩을 보호하는 전원차단회로에 있어서, 배터리의 전압, 전류, 온도를 기반으로 배터리의 충/방전 제어신호를 생성하는 BMS(Battery Management System), 배터리의 침수 여부를 감지하여, 배터리 충/방전 차단신호를 생성하는 침수센싱부, 상기 침수센싱부에서 침수가 감지되면, 사용자에게 침수정보를 제공하는 침수 경고부, 충/방전 경로상에서 전원을 스위칭 하는 게이트 및 상기 BMS(Battery Management System)의 충/방전 제어신호 및 상기 침수센서의 충/방전 차단신호를 입력받아 상기 게이트 온/오프(ON/OFF) 신호를 출력하는 게이트 드라이버를 포함하여 구성되는 것을 특징으로 한다.

    The present invention relates to a power cut-off circuit which senses a condition when a car is submerged and protects a battery pack. The power cut-off circuit comprises: a battery management system (BMS) which generates a charging/discharging control signal of a battery based on voltage, current, and temperature of the battery; a water penetration sensing unit which senses whether water penetrates the battery and generates a battery charging/discharging blocking signal; a water penetration warning unit which provides information of water penetration to a user when the water penetration sensing unit senses the water penetration; a gate which switches power on a charging/discharging route; and a gate driver which receives input of the charging/discharging control signal of the BMS and the charging/discharging blocking signal of the water penetration sensor and outputs the gate on/off signal.


    Access

    Download


    Export, share and cite



    Title :

    BATTERY PACK POWER CUT-OFF CIRCUIT WHEN IMMERSING ELECTRIC VEHICLE


    Additional title:

    전기자동차의 침수 시 배터리 팩 전원차단회로


    Publication date :

    2021-09-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G08C Übertragungssysteme für Messwerte, Regel-, Steuer- oder ähnliche Signale , TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS / 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



    BATTERY PACK POWER CUT-OFF CIRCUIT WHEN IMMERSING ELECTRIC VEHICLE

    KIM JUN SUK / YOON WONG KI | European Patent Office | 2018

    Free access

    Battery unit integrated circuit, power battery pack, electric vehicle and method

    LIU YAQI / CUI XIAOQING / HAN WEIMIN et al. | European Patent Office | 2021

    Free access

    POWER BATTERY PACK AND ELECTRIC VEHICLE

    HE LONG / SUN HUAJUN / JIANG WENFENG et al. | European Patent Office | 2022

    Free access

    Power battery pack shell structure, power battery pack and electric vehicle

    WANG LU / REN RONGBIN / ZHANG HAIJIAN et al. | European Patent Office | 2020

    Free access

    POWER BATTERY PACK AND ELECTRIC VEHICLE

    HE LONG / SUN HUAJUN / JIANG WENFENG et al. | European Patent Office | 2022

    Free access