The invention discloses a power switch fault detection method and device, charging equipment and a storage medium, and relates to the technical field of switch fault detection, the method is applied to the charging equipment of an electric vehicle, the charging equipment comprises a power switch, and the power switch is used for switching on or off according to a switching instruction and controlling connection or disconnection of a power supply and the electric vehicle; the method comprises the steps that the switching state of a power switch corresponding to a switching instruction before charging, the first voltage between a live wire and a zero wire in charging equipment, the second voltage between the live wire and a ground wire and the third voltage between the zero wire and the ground wire are acquired, and the switching state comprises a closed state and/or a closed state; and obtaining a fault detection result of the power switch according to the switch state, the first voltage, the second voltage and the third voltage. The technical problem of how to detect the relay fault of the electric vehicle charging device is solved.

    本发明公开一种功率开关故障检测方法、装置、充电设备及存储介质,涉及开关故障检测技术领域,方法应用于电动汽车的充电设备,充电设备包括功率开关,功率开关用于根据开关指令闭合或关断,控制电源与电动汽车的连接或断开;方法包括:获取充电前开关指令对应的功率开关的开关状态、充电设备中火线与零线之间的第一电压、火线与地线之间的第二电压和零线与地线之间的第三电压,其中,开关状态包括闭合状态和/或关断状态;根据开关状态、第一电压、第二电压和第三电压,获得功率开关的故障检测结果。本发明解决了如何检测电动汽车充电装置的继电器故障的技术问题。


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    Title :

    Power switch fault detection method and device, charging equipment and storage medium


    Additional title:

    功率开关故障检测方法、装置、充电设备及存储介质


    Contributors:

    Publication date :

    2023-04-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen




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