The invention relates to the technical field of battery management modules, in particular to a high-voltage interlocking signal detection system and method. A high-voltage interlocking signal detection system comprises a reference power supply, a voltage division diagnosis module, a constant current source and an external loop. The voltage division diagnosis module comprises a current limiting unit, a voltage division unit, a diagnosis unit and a diagnosis resistor; the output end of the power supply is connected with the input end of the current limiting unit, an external loop and a constant current source are sequentially connected from the output end of the current limiting unit to a first grounding end, a voltage dividing unit is connected from the output end of the current limiting unit to a second grounding end, the external loop is connected with a diagnosis resistor in parallel, and the input end of the diagnosis unit is connected with a voltage sampling point V1 of the voltage dividing unit. And the voltage detection module is used for detecting the voltage value of the voltage sampling point V1 and diagnosing the circuit connection state of the external loop according to the voltage value of the voltage sampling point V1. After the technical scheme is adopted, the used circuit components are few, the introduced sampling error is small, the diagnosis scheme is simple, and the occupied MCU resources are few.

    本发明涉及电池管理模块技术领域,尤其涉及一种高压互锁信号检测系统及方法。一种高压互锁信号检测系统,包括基准电源、分压诊断模块、恒流源和外部回路;分压诊断模块包括限流单元、分压单元、诊断单元和诊断电阻;电源的输出端连接限流单元的输入端,自限流单元的输出端至第一接地端依次连接有外部回路和恒流源,自限流单元的输出端至第二接地端连接有分压单元,外部回路并联诊断电阻,诊断单元的输入端连接分压单元的电压采样点V1,用于检测电压采样点V1的电压值,根据电压采样点V1的电压值诊断所述外部回路的电路连接状态。采用上述技术方案后,所用到的电路元器件较少,引入采样误差较小,诊断方案简单,占用的MCU的资源较少。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    High-voltage interlocking signal detection system and method


    Weitere Titelangaben:

    一种高压互锁信号检测系统及方法


    Beteiligte:
    KAN WEIJIA (Autor:in)

    Erscheinungsdatum :

    2023-03-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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




    High-voltage interlocking system, vehicle and high-voltage interlocking detection method

    LING MIN / LI ZHENZHEN / YU JUNJIE | Europäisches Patentamt | 2023

    Freier Zugriff

    Interlocking detection system, high-voltage system and high-voltage interlocking detection fault positioning method

    WANG HUMING / LI PENG / TANG SHANZHENG | Europäisches Patentamt | 2022

    Freier Zugriff

    High-voltage interlocking detection system, vehicle comprising same and high-voltage interlocking detection method

    ZHOU XIANJUN / HU XIN / YAN KEWEI et al. | Europäisches Patentamt | 2023

    Freier Zugriff

    Current type high-voltage interlocking detection system and method and vehicle high-voltage interlocking system

    LI QIANG / KE XICHUN / SONG ZHONGQI | Europäisches Patentamt | 2023

    Freier Zugriff