The invention provides a fault detection method and a device for a vehicle-mounted air conditioner, the vehicle-mounted air conditioner and a storage medium. The vehicle-mounted air conditioner comprises a power supply battery, a boosting voltage-multiplying circuit and a load which are electrically connected, the boosting voltage-multiplying circuit is configured to boost the power supply voltageof the power supply battery and then output the boosted power supply voltage to the load, and the fault detection method comprises the steps of calculating a first boosting ratio according to the output voltage of the boosting voltage-multiplying circuit and the power supply voltage; calculating a second step-up ratio according to the duty ratio of the control signal of the step-up voltage doubling circuit; the fault information of the boost voltage-multiplying circuit is determined according to the first boost ratio and the second boost ratio, and an effective fault detection method is set,so that the air conditioner can effectively detect and perform corresponding protection actions in the case that a single channel of the boost voltage-multiplying circuit is damaged in the operation process, and the safety and reliability of the vehicle-mounted air conditioner are improved.
本发明提出了一种车载空调的故障检测方法、装置、车载空调和存储介质。其中,车载空调包括电连接的供电电池、升压倍压电路和负载,升压倍压电路被配置为将供电电池的供电电压升压后输出至负载,故障检测方法包括:根据升压倍压电路的输出电压和供电电压计算第一升压比;根据升压倍压电路的控制信号的占空比计算第二升压比;根据第一升压比和第二升压比确定升压倍压电路的故障信息,通过设置有效的故障检测方法,使空调在运行的过程中在升压倍压电路的单路通道出现损坏的情况下,能够有效地检测出并作出相应的保护动作,提高车载空调的安全可靠。
Fault detection method and device for vehicle-mounted air conditioner, vehicle-mounted air conditioner and storage medium
车载空调的故障检测方法、装置、车载空调和存储介质
2020-06-05
Patent
Electronic Resource
Chinese
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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