The invention provides a refrigerant leakage diagnosis method, device and equipment and a readable storage medium, and the refrigerant leakage diagnosis method comprises the steps: detecting whether a water pump of a battery water loop is in a working state or not when a vehicle air conditioning system is in a refrigeration working state and the opening degree of an electronic expansion valve is a preset opening degree; if yes, when the duration of the working state of the water pump of the battery water loop exceeds the preset duration, determining a refrigerant leakage diagnosis result according to the inlet temperature and the outlet temperature of the battery pack; if not, the superheat degree value of the outlet of the battery cooler is calculated according to the temperature and pressure of the outlet of the battery cooler, and the refrigerant leakage diagnosis result is determined according to the superheat degree value of the outlet of the battery cooler. According to the method, the refrigerant leakage diagnosis result is determined through the battery water loop water temperature method and the superheat degree value method under the two conditions that the water pump of the battery water loop is in the working state and the non-working state, and after it is determined that the refrigerant leakage fault exists, a user is timely notified to conduct inspection and maintenance.

    本发明提供一种冷媒泄漏诊断方法、装置、设备及可读存储介质,冷媒泄漏诊断方法包括:当车辆空调系统处于制冷工作状态,且电子膨胀阀的开度为预设开度时,检测电池水回路的水泵是否处于工作状态;若是,则当电池水回路的水泵处于工作状态的时长超过预设时长时,根据电池包的入口温度和出口温度,确定冷媒泄漏诊断结果;若否,则根据电池冷却器出口的温度和压力,计算得到电池冷却器出口的过热度值,根据电池冷却器出口的过热度值,确定冷媒泄漏诊断结果。本发明通过,在电池水回路的水泵处于工作和非工作状态两种情况下,分别采用电池水回路水温法和过热度值法确定冷媒泄漏诊断结果,在确定存在冷媒泄漏故障后,及时通知用户进行检查维修。


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    Title :

    Refrigerant leakage diagnosis method, device and equipment and readable storage medium


    Additional title:

    冷媒泄漏诊断方法、装置、设备及可读存储介质


    Contributors:
    WU DONGPEI (author) / ZHOU TONG (author) / ZHANG GEN (author) / ZHU TI (author)

    Publication date :

    2023-03-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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 / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen



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