The invention relates to a high-voltage electronic device fault detection method and device, a medium and a vehicle. The method comprises the steps that when a vehicle is charged, the initial temperature of a target high-voltage electronic device and the actual temperature rise of the target high-voltage electronic device within the preset charge state range of a battery are obtained, and the target high-voltage electronic device is located in a high-voltage loop where the battery is located; on the basis of a preset relation, the theoretical temperature rise of the target high-voltage electronic device in the preset state-of-charge range is determined, and the preset relation represents the temperatures of the target high-voltage electronic device at different initial temperatures and the battery state-of-charge; and when the actual temperature rise is greater than the theoretical temperature rise and a difference value between the actual temperature rise and the theoretical temperature rise is greater than a temperature difference early warning threshold value of the target high-voltage electronic device, determining that the target high-voltage electronic device has a fault. According to the technical scheme, the vehicle safety can be improved.

    本公开涉及一种高压电子器件故障检测方法、装置、介质及车辆。其中方法包括:在车辆充电时,获取目标高压电子器件的初始温度以及所述目标高压电子器件在电池的预设荷电状态范围内的实际温升,其中,所述目标高压电子器件位于所述电池所在的高压回路;基于预设关系,确定所述目标高压电子器件在所述预设荷电状态范围内的理论温升,其中,所述预设关系表征了所述目标高压电子器件在不同的初始温度以及电池荷电状态下的温度;在所述实际温升大于所述理论温升且所述实际温升与所述理论温升的差值大于所述目标高压电子器件的温差预警阈值时,确定所述目标高压电子器件存在故障。本公开技术方案能够提高车辆安全性。


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    Title :

    High-voltage electronic device fault detection method and device, medium and vehicle


    Additional title:

    高压电子器件故障检测方法、装置、介质及车辆


    Contributors:

    Publication date :

    2025-01-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein




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