The invention provides a control method, device and equipment for a heat pump air-conditioning system of an electric automobile and a storage medium, and the method comprises the steps that the initial temperature of cooling liquid in an outdoor heat exchanger of the heat pump air-conditioning system and the dew-point temperature of external air are obtained, the difference value obtained by subtracting the initial temperature of the cooling liquid from the dew-point temperature of the external air is obtained, and a first trigger temperature value is obtained; during heating of the heat pump, if the initial temperature of the cooling liquid is smaller than or equal to the water vapor frost point temperature and the first trigger temperature value is larger than or equal to the first preset safety threshold value, a motor is started to heat the cooling liquid in the outdoor heat exchanger to increase the temperature of the cooling liquid; the temperature of the heated cooling liquid in an outdoor heat exchanger of the heat pump air conditioning system is obtained, and a second trigger temperature value is obtained according to the difference value obtained by subtracting the dew point temperature of the outside air from the temperature of the heated cooling liquid; and when the temperature of the heated cooling liquid is larger than or equal to the preset temperature value, or the second trigger temperature value is larger than or equal to a second preset safety threshold value, motor heating is stopped. The surface of the outdoor heat exchanger can be prevented from frosting in advance.
本发明提供一种电动汽车热泵空调系统控制方法、装置、设备及存储介质,方法包括获取热泵空调系统室外换热器内冷却液初始温度和外界空气露点温度,获取外界空气露点温度减去冷却液初始温度的差值,得到第一触发温度值;热泵制热时,若冷却液初始温度小于等于水蒸汽霜点温度,且第一触发温度值大于等于第一预设安全阈值,则启动电机加热室外换热器内冷却液来升高冷却液温度;获取热泵空调系统室外换热器内冷却液加热后温度,并根据冷却液加热后温度减去外界空气露点温度的差值,得到第二触发温度值;当冷却液加热后温度大于等于预设温度值,或者第二触发温度值大于等于第二预设安全阈值时,则退出电机加热。本申请能提前预防室外换热器表面结霜。
Control method, device and equipment for heat pump air conditioning system of electric vehicle and storage medium
电动汽车热泵空调系统控制方法、装置、设备及存储介质
2023-06-30
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 |
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