Method and system for detecting comprehensive performance of pneumatic brake four circuit protection valve
A four-circuit protection valve and comprehensive performance technology, which is applied in the direction of measuring devices, testing of mechanical components, testing of machine/structural components, etc., can solve the problems of incomplete testing items and low efficiency, so as to improve detection accuracy and control accuracy , The effect of shortening the detection cycle
Inactive Publication Date: 2015-06-17
中国测试技术研究院电子研究所
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Problems solved by technology
[0003] The purpose of the present invention is to provide a method and system for comprehensive performance detection of air brake four-circuit protection valves, which solves the problems of low efficiency and incomplete detection items of the current comprehensive performance detection of air brake four-circuit protection valves, and achieves diversified detection conditions, The purpose of automatic detection process and accurate and stable detection results
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[0019] Below in conjunction with accompanying drawing, the present invention will be further described:
[0020] Such as figure 1 , the comprehensive performance testing method of the air brake four-circuit protection valve, including the following steps: S1 put the valve under test into the testing device and fix it; S2 the testing personnel select the test item, set the corresponding parameters, and start the test; S3 the upper computer software According to the test items and the set parameters, send instructions to the data acquisition card according to the test procedure, control the electric proportional valve to realize the stepless adjustment of air pressure, control the system intake rate and exhaust rate, and realize comprehensive performance testing; S4 air pressure The sensor collects the air pressure value of each port and transmits it to the A / D port of the data acquisition card for signal processing, and then transmits it to the industrial computer; the S5 indus...
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The invention relates to the field of performance detection of four circuit protection valves of pneumatic brake valves of automobiles and discloses a method for detecting the comprehensive performance of a pneumatic brake four circuit protection valve. The method comprises the following steps that S1, a detection device fixes the valve to be detected; S2, an upper computer selects a test item and sets parameters; S3, the upper computer sends a command to a data acquisition module and controls an electric proportional valve; S4, a gas pressure transducer acquires a gas pressure value and transmits measuring data; and S5, the upper computer processes the measuring data. The invention also provides a system for detecting the comprehensive performance of the pneumatic brake four circuit protection valve. The method and the system have the advantages that by setting the manual parameters, the performance of the four circuit protection valve under different work conditions can be detected; meanwhile, software of a computer system controls the detection in the detection process, a testing process is automatic, the control testing accuracy is improved, and the detection period is shortened; and data are measured and acquired by the transducer and a data acquisition card, so that the detection accuracy is greatly improved.
Description
technical field [0001] The invention relates to the field of performance detection of four-circuit protection valves for automobile air brake valves, and discloses a method and system for comprehensive performance detection of four-circuit protection valves for air brakes. Background technique [0002] With the rapid development of the economy, the demand for automobiles is constantly increasing, and at the same time, the rate of traffic accidents is also on the rise. In addition to human factors, the performance of the automobile braking system is the main cause. Therefore, various departments have strict requirements on the performance of automobile braking systems. At present, passenger cars and trailers mostly use multi-circuit air braking systems. When one circuit fails, other circuits can normally supply and inflate air to improve automobile braking performance. The four-circuit protection valve is one of the main valve bodies in the multi-circuit air brake system, an...
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IPC IPC(8): G01M13/00
Inventor 杨春生隋良红余晓曦张杰李龙
Owner 中国测试技术研究院电子研究所