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Air-conditioner compressor performance testboard and testing method for vehicle based on PLC

A technology of test bench and compressor, which is applied in the direction of engine testing, machine/structural component testing, measuring devices, etc. It can solve the problems that the test speed cannot be effectively improved, the production demand cannot be met, and the accuracy is not high enough to achieve test results. Accurate and reliable, full-featured, high-precision results

Inactive Publication Date: 2005-02-23
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These existing test methods are artificially affected, the accuracy is not high enough, and each test is carried out independently, requiring manual transition between each other, the test speed cannot be effectively improved, and often cannot meet the production needs

Method used

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  • Air-conditioner compressor performance testboard and testing method for vehicle based on PLC
  • Air-conditioner compressor performance testboard and testing method for vehicle based on PLC
  • Air-conditioner compressor performance testboard and testing method for vehicle based on PLC

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Embodiment Construction

[0019] Describe in detail below in conjunction with accompanying drawing.

[0020] figure 1 A block diagram of the system composition of the present invention is given. PLC is an automatic control device, which controls the working device for automatic testing by executing the internal automatic control program. Two-way communication between PLC and display screen: the automatic test process determined by the PLC program is displayed on the display screen instantly; the automatic test parameters are set through the display screen. The panel button is a manual control device, which controls the working device by responding to manual operation. The mode switch determines the control mode. Through the switching of the mode switch, the PLC automatic control or the manual control of the panel button acts on the working device. The working device includes frequency conversion motor, vacuum pump, oil injection pump, pneumatic stop valve, transmitter and so on. These devices work...

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PUM

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Abstract

A test table consists of control device, display device and operation devie. It is featured as integrating vacuum pumping device, oiling device, nitrogen filling device, running device and various performance detecting device together for automaticallyc arrying out performance tests for air-conditioning compressor of automobile under unified control of PLC; having on-line display of test state and making acousto-optic alarm for abnormals.

Description

technical field [0001] The invention relates to a performance test bench and a testing method for an automobile air-conditioning compressor, in particular to a PLC-based performance testing bench for an automobile air-conditioning compressor and a testing method for testing the performance of an automobile air-conditioning compressor using the test bench. Background technique [0002] Automotive air-conditioning compressors are mostly swash plate compressors or scroll compressors, usually with clutches and pulleys. The operation of the compressor is realized by the clutch (connected to the compressor main shaft) and the pulley (driven by the motor). Leakage, filling efficiency and clutch performance are several key quality indicators of automotive air-conditioning compressors, which must be strictly tested before the compressor leaves the factory. The test methods currently used by automotive air-conditioning compressor manufacturers are mainly: maintain a certain pressure ...

Claims

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Application Information

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IPC IPC(8): G01M15/00
Inventor 周泽魁张兴宁李立新张光新
Owner ZHEJIANG UNIV
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