The invention relates to the technical field of fuel cell engines, and especially relates to a vehicle proton exchange membrane fuel cell power control method and system. The method comprises the following steps: calculating required power of a whole vehicle according to current road condition information and vehicle condition information; starting the hydrogen storage tank unit to supply hydrogen to the fuel cell stack; if the working condition of the whole vehicle is the transient working condition, starting a gas storage tank unit to supply oxygen to the fuel cell stack, and if the working condition of the whole vehicle is the steady working condition, starting a screw type air compressor to supply oxygen to the fuel cell stack; and calculating the power supply power of the fuel cell stack matched with the required power of the whole vehicle and the hydrogen flow and the oxygen flow required by the reaction, and adjusting the hydrogen flow, the oxygen flow and the internal air pressure of the fuel cell stack. The air input source of the air end of the fuel cell system is controlled according to the requirement of the actual working condition of the fuel cell, so that the engine can better cope with various working conditions, and the air flow and the air pressure are more accurately, timely and stably controlled.

    本发明涉及燃料电池发动机技术领域,尤其是一种车用质子交换膜燃料电池功率控制方法和系统。该方法包括:根据当前的路况信息和车况信息计算整车需求功率;启动储氢罐单元为燃料电池堆供应氢气;若整车工况处于瞬态工况,启动储气罐单元为燃料电池堆供应氧气,若整车工况处于稳态工况,启动螺杆式空压机为燃料电池堆供应氧气;计算与整车需求功率匹配的燃料电池堆的供电功率以及反应所需的氢气流量和氧气流量,调节氢气流量、氧气流量以及燃料电池堆的内部气压。本发明根据燃料电池实际工况的需要,控制燃料电池系统空气端空气的输入源,从而使得发动机能够更优的应对各种工况,使得空气流量和空气压力的控制更加准确、及时和稳定。


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    Title :

    Vehicle proton exchange membrane fuel cell power control method and system


    Additional title:

    车用质子交换膜燃料电池功率控制方法和系统


    Contributors:
    DU CHANGQING (author) / LI HUI (author) / WU DONGMEI (author) / ZHANG PEI (author) / LU CHIHUA (author)

    Publication date :

    2021-12-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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