The invention provides a power distribution method and device for a fuel cell hybrid power system, and the method comprises the steps: obtaining the ith initial target power of a fuel cell at a start time node of the ith maintenance time; the ith initial target power is determined according to the vehicle demand power before the starting time node of the vehicle and the first charge state of the high-voltage battery before the starting time node; if the absolute value of the difference value between the ith initial target power and the historical target power within the (i-1) th maintaining time length is greater than or equal to the power step length, determining the ith actual target power of the fuel cell according to the historical target power within the (i-1) th maintaining time length and the power step length; if the absolute value of the difference value between the ith initial target power and the historical target power in the (i-1) th maintaining time length is smaller than the power step length, the historical target power in the (i-1) th maintaining time length is determined as the ith actual target power of the fuel cell; the power consumption response rate of the fuel cell can be matched by controlling the stepped change of the actual target power.

    本申请提供一种燃料电池混合动力系统的功率分配方法及装置,在第i个维持时长的开始时间节点,获取燃料电池的第i个初始目标功率;第i个初始目标功率根据车辆在开始时间节点之前的整车需求功率和开始时间节点之前的高压电池的第一电荷状态确定;若第i个初始目标功率与第i‑1个维持时长内的历史目标功率的差值的绝对值大于或等于功率步长,则根据第i‑1个维持时长内的历史目标功率和功率步长确定燃料电池的第i个实际目标功率;若第i个初始目标功率与第i‑1个维持时长内的历史目标功率的差值的绝对值小于功率步长,第i‑1个维持时长内的历史目标功率确定为燃料电池的第i个实际目标功率;控制实际目标功率阶梯式变化,可匹配燃料电池的功耗响应速率。


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    Title :

    Power distribution method and device of fuel cell hybrid power system


    Additional title:

    一种燃料电池混合动力系统的功率分配方法及装置


    Contributors:
    QIU JIE (author) / ZHUANG CAIHUA (author) / FU ZHIYONG (author)

    Publication date :

    2024-03-12


    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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