The invention belongs to the technical field of two-wheel electric vehicle BMS battery management systems, and particularly relates to a two-wheel electric vehicle BMS sampling current calibration method which comprises a BMS system and a PC end upper computer, when a battery is not charged or discharged, a null shift calibration instruction is sent through the PC end upper computer, the BMS system calculates a current sampling value after receiving the instruction, and the current sampling value is calculated according to the null shift calibration instruction. The sampling value is stored in a storage medium as a current null shift reference value, and the program control constant current source accurately outputs a preset current value as a calibration signal source according to a control command of the upper computer. According to the BMS sampling current calibration method for the two-wheeled electric vehicle, the self noise caused by the system is considered and the noise proportion caused by the loop is determined mainly for the battery pack in the battery replacement market of the two-wheeled electric vehicle, calibration is completed when the circuit leaves the factory, and subsequent excessive complex operation is not needed; compared with other technical schemes, the method is simpler, more convenient and more accurate, and is more suitable for the two-wheeled vehicle battery replacement market.

    本发明属于两轮车BMS电池管理系统技术领域,尤其是一种两轮电动车BMS采样电流校准方法,包括BMS系统和PC端上位机,在电池无充放电时,通过所述PC端上位机发送零飘校准指令,所述BMS系统接收到指令后计算当前采样值,将此采样值作为当前零飘基准值保存在存储介质中,程控恒流源再依据上位机的控制命令精准输出预设电流值作为校准的信号源。该两轮电动车BMS采样电流校准方法,通过设置本发明专利,使得主要针对两轮车换电市场电池包,不仅考虑系统带来的自身噪声并且确定了回路带来的噪声比例,在电路出厂时完成校准即可,无需后续过多复杂操作,相比现有其他技术方案更加简便准确,更加适合二轮车换电市场使用。


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    Title :

    Two-wheeled electric vehicle BMS sampling current calibration method


    Additional title:

    一种两轮电动车BMS采样电流校准方法


    Contributors:
    DU YAN (author) / ZHANG MINGXU (author) / CAO YINGWEI (author)

    Publication date :

    2024-01-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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




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