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Calibration method and system for refrigerant charging amount of automobile air conditioner

A technology of automobile air conditioner and calibration method, which is applied in the directions of volume measuring instruments/methods, refrigerators, refrigeration components, etc., can solve the problems of unable to obtain refrigeration effect, unable to charge automobile air conditioner refrigerant, and no refrigerant, etc., and achieve shortened calibration. The effect of cycle, good consistency and high precision

Active Publication Date: 2011-12-21
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is no relevant method for determining the refrigerant charging amount in China, so it is impossible to charge the automobile air-conditioning refrigerant to the optimal amount, and it is impossible to obtain the best cooling effect

Method used

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  • Calibration method and system for refrigerant charging amount of automobile air conditioner
  • Calibration method and system for refrigerant charging amount of automobile air conditioner
  • Calibration method and system for refrigerant charging amount of automobile air conditioner

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Embodiment Construction

[0018] Now, the present invention will be described in detail with reference to the accompanying drawings in conjunction with the embodiments, but the present invention is not limited thereto.

[0019] Such as figure 1 As shown, it is a flow chart of the method for determining the charging amount of automobile air-conditioning refrigerant of the present invention, including:

[0020] Environmental simulation step 101, simulating the actual environment in which the vehicle operates, setting the temperature and humidity to 38°C (Celsius), 50%RH (relative humidity), setting the intensity of light radiation to the intensity of ordinary sunlight, and setting the The headwind speed is set to correspond to the vehicle speed.

[0021] Working condition selection step 102, charge the air conditioner compressor with 300g (grams) of refrigerant, make the vehicle run for 15 minutes at 0kph (kilometers per hour), direct gear 50kph and direct gear 100kph respectively, so as to select the h...

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Abstract

The invention relates to a vehicle air conditioner refrigerant filling volume calibration method and a system; the method comprises an environment simulation step, a working condition selection step, a data acquisition step and a best filling volume determination step; in the environmental simulation step, an actual environment in which a vehicle runs is simulated; in the working condition selection step, an initial amount of refrigerant is filled into an air-conditioning compressor, so that the vehicle runs in different working conditions, and a working condition with the highest pressure ofa high-pressure end of the air-conditioning compressor is selected as the running condition for vehicle testing; in the data acquisition step, the vehicle runs in the working condition with the highest pressure of the high-pressure end of the compressor, a preset amount of refrigerant is filled into the compressor at preset intervals, and the pressure of the high-pressure end of the compressor, the average temperature of an air outlet and the refrigerant filling volume data are respectively acquired; and in the best filling volume determination step, according to a graph obtained from the pressure of the high-pressure end of the compressor, the average temperature of the air outlet and the refrigerant filling volume data, the refrigerant filling volume which corresponds to the lowest point of the average temperature change curve of the air outlet is determined, and the filling volume is determined to be the best filling volume. The invention can shorten a calibration cycle, and the precision is higher.

Description

technical field [0001] The invention relates to a method and a system for calibrating the refrigerant charging amount of a refrigeration equipment, in particular to a method and a system for calibrating the refrigerant charging amount of an automobile air conditioner. Background technique [0002] Nowadays, the requirements for the comfort of automobiles are getting higher and higher. As an important device to measure the comfort of automobiles, automobile air conditioners have received more and more attention, and have become the standard configuration of automobiles now. have a crucial impact. However, there is currently no relevant method for determining the amount of refrigerant charged in China, so it is impossible to charge the automobile air-conditioning refrigerant to an optimal amount and obtain the best cooling effect. Contents of the invention [0003] In order to solve the problems in the prior art, the object of the present invention is to provide a method an...

Claims

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Application Information

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IPC IPC(8): G01F22/00F25B45/00
Inventor 刘刚陶臣军谢大伟
Owner BEIQI FOTON MOTOR CO LTD
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