The invention relates to an electronic expansion valve opening degree test system and method for new energy automobile thermal management, and belongs to the field of new energy automobile thermal management. The system comprises an upper computer, an electric control unit and a heat management module, the heat management module comprises an electronic expansion valve, an electric compressor, a condenser, a cooling fan, a water pump, an evaporator and a battery pack; wherein the electronic control unit controls the electronic expansion valve through the fuzzy PID controller; according to the method, by configuring a test environment and a control strategy, the optimal starting opening degree, the optimal dynamic adjustment opening degree and the optimal sudden change opening degree of the electronic expansion valve are sequentially measured, and the continuous variable working conditions of the thermal management system under the conditions of vehicle starting, normal driving and sudden change are sequentially simulated in the measurement process; the opening degree of the electronic expansion valve is controlled through the fuzzy PID controller in sequence; and finally, the measured data of the starting optimal opening degree, the dynamic adjustment optimal opening degree and the sudden change optimal opening degree of the electronic expansion valve are stored in an electronic control unit.
本发明涉及一种用于新能源汽车热管理的电子膨胀阀开度测试系统及方法,属于新能源汽车热管理领域。该系统包括上位机、电控单元、热管理模块;热管理模块包括电子膨胀阀、电动压缩机、冷凝器、冷却风扇、水泵、蒸发器以及电池包;其中,电控单元通过模糊PID控制器对电子膨胀阀进行控制;该方法通过配置测试环境和控制策略,依次测定电子膨胀阀的启动最佳开度、动态调整最佳开度以及突变最佳开度,在测定过程中依次模拟整车启动、正常行驶、突变情况下的热管理系统的连续可变工况,并依次通过模糊PID控制器控制电子膨胀阀的开度;最后将测定的电子膨胀阀的启动最佳开度、动态调整最佳开度以及突变最佳开度的数据保存至电控单元。
Electronic expansion valve opening degree test system and method for new energy automobile thermal management
用于新能源汽车热管理的电子膨胀阀开度测试系统及方法
2024-08-09
Patent
Electronic Resource
Chinese
IPC: | F16K VALVES , Ventile / 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 / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / G05B Steuer- oder Regelsysteme allgemein , CONTROL OR REGULATING SYSTEMS IN GENERAL / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen |
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