The invention relates to a new energy commercial vehicle fuel cell power distribution method and system, and belongs to the technical field of pure electric commercial vehicles. The method comprises the following steps: determining the power of a fuel cell, and dividing the power of the fuel cell into N power points from large to small or from small to large, N being a positive integer greater than or equal to 2; according to the number of the power points of the fuel cell, dividing the SOC of the power cell into N SOC reference intervals so as to respectively and correspondingly match the N power points of the fuel cell; and setting interval return differences among the N SOC reference intervals, if the variation of the SOC is smaller than the interval return differences, not changing the power point of the fuel cell, and if the variation of the SOC is larger than the interval return differences, adjusting the power point of the fuel cell to be the correspondingly matched SOC reference interval. According to the invention, the relative stability of the output power of the fuel cell is maintained, peak clipping and valley leveling are carried out according to the power of the power cell, the service life of the fuel cell on the electric vehicle is prolonged, and the after-sales maintenance cost is reduced.

    本申请涉及一种新能源商用车燃料电池功率分配方法及系统,属于纯电动商用车技术领域,该方法包括以下步骤:确定燃料电池的功率,并将燃料电池的功率由大到小或由小到大划分为N个功率点,N为≥2的正整数;根据燃料电池的功率点个数,将动力电池的SOC划分为N段SOC参考区间,以分别对应匹配燃料电池的N个功率点;在N段SOC参考区间之间均设置区间回差,若SOC的变化量小于区间回差,则燃料电池的功率点不变,若SOC的变化量大于区间回差,则燃料电池的功率点调整为对应匹配的SOC参考区间。本申请通过保持燃料电池输出功率的相对稳定,以动力电池功率进行削峰平谷,提高燃料电池在电动汽车上的使用寿命,降低了售后维护成本。


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    Title :

    New energy commercial vehicle fuel cell power distribution method and system


    Additional title:

    一种新能源商用车燃料电池功率分配方法及系统


    Contributors:
    SHAN ZHIWEN (author) / HAO XINGBIN (author) / LIU YAN (author) / CHEN HOUJI (author) / FU PING (author) / LI CHENG (author) / WANG LIANG (author) / LIU BANGQIANG (author)

    Publication date :

    2021-10-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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