The invention relates to the technical field of vehicles, in particular to a fault diagnosis method and device of a fuel cell engine system, a vehicle and a medium, the fuel cell engine system comprises an air supply subsystem and a hydrogen supply subsystem, and the air supply subsystem comprises an air pressure detection assembly and a cut-off assembly. The air pressure detection assembly is respectively connected with the galvanic pile and the cut-off assembly, the hydrogen supply subsystem comprises a hydrogen pressure detection assembly, the hydrogen pressure detection assembly is connected with the galvanic pile, and the method comprises the following steps: calculating a current air-hydrogen pressure difference according to a first pressure of the hydrogen pressure detection assembly and a second pressure of the air pressure detection assembly; and if the air-hydrogen pressure difference is greater than a first preset threshold value, determining a target hydrogen pressure, supplementing hydrogen for the galvanic pile, and sending fault information of the cut-off assembly to a preset mobile terminal. Therefore, fault monitoring is carried out on the stop valve by monitoring the air-hydrogen pressure difference, the current pressure difference is made up by supplementing hydrogen, shutdown is not needed, and the fault rate is effectively reduced.
本申请涉及车辆技术领域,特别涉及一种燃料电池发动机系统的故障诊断方法、装置、车辆及介质,燃料电池发动机系统包括空气供应子系统和氢气供应子系统,空气供应子系统包括空气压力检测组件和截止组件,空气压力检测组件分别与电堆和截止组件相连,氢气供应子系统包括氢气压力检测组件,氢气压力检测组件与电堆相连,其中,方法包括:根据氢气压力检测组件的第一压力和空气压力检测组件的第二压力计算当前空氢压差,若空氢压差大于第一预设阈值,则确定目标氢气压力,并为电堆补充氢气,且发送截止组件的故障信息至预设移动终端。由此,通过监测空氢压差对截止阀进行故障监测,并通过补充氢气弥补当前压差,且无需停机,有效降低了故障率。
Fault diagnosis method and device for fuel cell engine system, vehicle and medium
燃料电池发动机系统的故障诊断方法、装置、车辆及介质
2024-08-27
Patent
Electronic Resource
Chinese
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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