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Method for testing frost-resistant capacity of automobile air-conditioning assembly

An automotive air-conditioning and anti-frost technology, which is used in the testing, measuring devices, instruments, etc. of machine/structural components, which can solve the problem that the operation of the air-conditioning system cannot be accurately reflected, the system capability cannot be effectively reflected, and the working conditions are single. and other problems, to achieve the effect of easy promotion and use, accurate reflection and low cost

Pending Publication Date: 2019-08-16
WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Individual frosting ability test and non-real vehicle system bench test cannot accurately reflect the operation of the air conditioning system, the working condition is single, the test results are quite different from the performance of the real vehicle system, and cannot effectively reflect the system capability
Due to the high cost of vehicle wind tunnel testing, only a few specific working conditions are usually tested

Method used

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  • Method for testing frost-resistant capacity of automobile air-conditioning assembly
  • Method for testing frost-resistant capacity of automobile air-conditioning assembly

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Embodiment Construction

[0024] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0025] A method for testing the anti-frosting ability of an automobile air-conditioning assembly, including an air-conditioning assembly, a compressor, a condenser, an air-conditioning pipeline, an expansion valve, a blower, and a voltmeter. An air-conditioning assembly with a temperature sensor, the condenser is a condenser with an air inlet and outlet temperature sensor, the air conditioning pipeline is an air conditioning pipeline with a three-way valve, and the expansion valve is provided with several, and several The expansion coefficients of each expansion valve are different. The air-conditioning assembly is installed on a support with wheels that is representative of the whole vehicle and at a position close to the bench test environment. T...

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Abstract

The invention discloses a method for testing frost-resistant capacity of an automobile air-conditioning assembly, comprising an air-conditioning assembly, a compressor, a condenser, an air-conditioning pipeline, an expansion valve, a blower and a voltmeter. The air-conditioning assembly is an air-conditioning assembly with an evaporator and an air-inlet air-outlet temperature sensor. The condenseris a condenser with an air-inlet air-outlet temperature sensor. The air-conditioning pipeline is an air-conditioning pipeline with a three-way valve. The air-conditioning assembly is connected with the compressor and the condenser through the air-conditioning pipeline. Following the coordinate position of the integral automobile, the air-conditioning assembly is connected with an external air inlet pipe of the air-conditioning assembly and an air inlet of the air-conditioning assembly and sealed at the junction and at the inlet of the expansion valve. The method for testing frost-resistant capacity of an automobile air-conditioning assembly achieves the testing of the real automobile air-conditioning system bench and the testing of the full scale wind tunnel, and can accurately representthe operation condition of the air-conditioning system, and has accurate test results, low cost and easy popularization and application.

Description

technical field [0001] The invention relates to the technical field of a method for testing the anti-frosting ability of an air-conditioning assembly, in particular to a method for testing the anti-frosting ability of an automobile air-conditioning assembly. Background technique [0002] Cars will face various environmental conditions during driving, and the air-conditioning system will also face severe tests. The occurrence of frosting in automotive air conditioners is directly related to the setting of the temperature value of the evaporator surface temperature sensor, the matching of the system, the external environmental conditions and the driving status of the car. In order to maximize the cooling capacity of the air conditioning system, the cut-off temperature of the evaporator temperature sensor is usually set relatively low. prone to frosting. [0003] After the evaporator is frosted, the resistance of the fan will increase, and the air volume will decrease until t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00
CPCG01M99/005
Inventor 魏成龙郝义国
Owner WUHAN GROVE HYDROGEN AUTOMOBILE CO LTD
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