Automobile air conditioning systems can be divided into several main components according to their functions: refrigeration system, heating system, ventilation and air purification system and control system. In order to make the automobile air conditioner have good working performance, and the cab and the passenger cabin maintain a comfortable environment, it is necessary to conduct an experimental test on the automobile air conditioning system to ensure that it has good working performance.
This test plan is formulated according to the national standard "GB / T 21361—Automotive Air Conditioner" and is used for testing automotive air conditioning systems.
The following are the sampling points of each physical quantity in the scheme design, including 18 temperature measurement points, 8 pressure measurement points, 3 flow measurement points and 7 wind speed measurement points.
The system composition of this test plan:
1. Hardware: thermocouple, pressure sensor, flow sensor, wind speed sensor, high-precision IPETRONIK data acquisition module, cable accessories and data recorder (optional), etc .;
2. Software: IPEmotion Professional Edition software, climate option package and FlexPro professional data analysis software (optional)
The example test system of this solution is shown in the following picture. While collecting the values ​​of each measurement point, it can also monitor and collect the data related to the air conditioning system of the vehicle ECU.
Refrigerant change analysis-application example of climate option package, the use of climate option package requires the installation of REFPROP (NIST2309) software to ensure the credibility and persuasion of the experimental results.
The following figure is the analysis process and software interface of FlexPro:
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