The invention provides a fuel cell vehicle using bypass valve control to clean an exhaust device. A fuel cell vehicle includes a bypass valve positioned downstream of a compressor and upstream of a fuel cell stack to selectively direct airflow from the compressor bypassing the fuel cell to an exhaust device to attempt to clean a partially or fully blocked exhaust pipe. The bypass valve may be opened by a controller when the exhaust back pressure exceeds a threshold and the exhaust throttle valve is in or near a fully open throttle position. The controller may also increase compressor flow and adjust airflow to the fuel cell stack until the exhaust back pressure drops below a second threshold or until compressor pressure, speed, or temperature exceeds corresponding limits.

    本公开提供了“利用旁通阀控制来清理排气装置的燃料电池车辆”。一种燃料电池车辆包括旁通阀,所述旁通阀定位在压缩机的下游和燃料电池堆的上游,以选择性地将气流从所述压缩机绕过所述燃料电池引导到排气装置,从而尝试清理部分或完全阻塞的排气管。当排气背压超过阈值并且排气节流阀处于或接近全开节气门位置时,可通过控制器打开所述旁通阀。所述控制器还可增加压缩机流量并调整到所述燃料电池堆的气流,直到所述排气背压降低到第二阈值以下为止或者直到压缩机压力、转速或温度超过对应的极限为止。


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    Title :

    FUEL CELL VEHICLE WITH BYPASS VALVE CONTROL FOR CLEANING


    Additional title:

    利用旁通阀控制来清理排气装置的燃料电池车辆


    Contributors:

    Publication date :

    2023-08-22


    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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