The invention discloses a multi-protection BMS (Battery Management System) for an explosion-proof forklift, belongs to the technical field of battery management, and solves the technical problems that a lithium battery BMS of an existing explosion-proof forklift is single in protection mechanism, and redundant protection cannot be formed. The BMS comprises an MCU, a first lithium battery management chip, a second lithium battery management chip, a voltameter chip and an operational amplifier chip; the first lithium battery management chip and the second lithium battery management chip are used for respectively acquiring a first battery cell voltage and a second battery cell voltage of the battery pack, and the average value is taken as an actual battery cell voltage; the first current and the second current of the battery pack are obtained through the voltameter chip and the operational amplifier chip respectively, and the SOC is obtained through current coulomb integral calculation after comparison and calibration. If one lithium battery management chip or one path of current collection fails, the other path of current collection continues to operate, and it is ensured that the explosion-proof forklift can continue to work normally when working in a dangerous environment.

    本发明公开了一种用于防爆叉车的多重保护BMS,属于电池管理技术领域,解决目前防爆叉车的锂电池BMS各项保护机制单一,无法形成冗余保护的技术问题。BMS包括MCU、第一锂电池管理芯片、第二锂电池管理芯片、电量计芯片、运放芯片;通过第一锂电池管理芯片、第二锂电池管理芯片分别获取电池包的第一电芯电压、第二电芯电压,取平均值作为实际电芯电压;通过电量计芯片、运放芯片分别获取电池包的第一电流、第二电流,进行对比校准后使用电流库伦积分计算得到SOC。如果其中一颗锂电池管理芯片或一路电流采集出现故障,另外一路将会继续保持运行,确保防爆叉车在危险环境中工作时能继续正常工作。


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    Title :

    Multi-protection BMS for explosion-proof forklift


    Additional title:

    一种用于防爆叉车的多重保护BMS


    Contributors:
    YI BINGHU (author) / YANG LE (author) / LIN-PENG TAOJUN (author) / TIAN FENG (author) / ZHANG ZHOU (author)

    Publication date :

    2025-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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