The invention firstly discloses an electronic expansion valve opening degree control method. The control method comprises the following steps that S1, the set temperature Tset in a vehicle is obtained, and the actual temperature Tin in the vehicle is detected; s2, the opening degree and the state of an electronic expansion valve are adjusted according to the deviation condition of the in-vehicle actual temperature Tin and the in-vehicle set temperature Tset; the algorithm formula of the opening degree of the electronic expansion valve is that the opening degree is equal to K1 * total opening degree * (Tin-Tset)/Tset + K2. The invention further discloses a vehicle air conditioner. According to the electronic expansion valve opening degree control method, the opening degree, needing to be adjusted currently, of the electronic expansion valve can be calculated through a specific algorithm formula, and the electronic expansion valve opening degree control method is simple and accurate in control and easy to implement; the electronic expansion valve is arranged on the bypass branch, the flow of the bypass refrigerant is adjusted, a specific adjusting mode of the opening degree of the electronic expansion valve is provided, the refrigeration adjusting range of the vehicle air conditioner is expanded by accurately adjusting the opening degree of the electronic expansion valve, and then the temperature control precision of the vehicle air conditioner is improved.

    本发明首先公开了一种电子膨胀阀开度控制方法,所述控制方法包括如下步骤:S1、获取车内设定温度Tset,检测车内实际温度Tin;S2、根据车内实际温度Tin和车内设定温度Tset的偏差情况调节电子膨胀阀开度和状态;所述电子膨胀阀开度的算法公式具体为:开度=K1*总开度*(Tin-Tset)/Tset+K2。本发明进一步公开了一种车辆空调。本发明通过特定的算法公式,能够计算出电子膨胀阀当前所需调节的开度,采用本申请中的电子膨胀阀开度控制方法,控制简单精准且容易实现;在旁通支路上设置电子膨胀阀,调节旁通冷媒的流量,提出了电子膨胀阀开度的具体调节方式,通过准确调节电子膨胀阀的开度,扩大了车辆空调的制冷调节范围,进而提高了其控温精度。


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    Title :

    Electronic expansion valve opening degree control method and vehicle air conditioner


    Additional title:

    一种电子膨胀阀开度控制方法及车辆空调


    Contributors:
    JIN TIANTIAN (author) / ZHU LIGUANG (author) / WANG YINJI (author) / LIU FENG (author)

    Publication date :

    2024-12-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS




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