CN203163983U - Device for detecting comprehensive performances of pneumatic brake four-circuit protection valve - Google Patents
Device for detecting comprehensive performances of pneumatic brake four-circuit protection valve Download PDFInfo
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- CN203163983U CN203163983U CN 201320184748 CN201320184748U CN203163983U CN 203163983 U CN203163983 U CN 203163983U CN 201320184748 CN201320184748 CN 201320184748 CN 201320184748 U CN201320184748 U CN 201320184748U CN 203163983 U CN203163983 U CN 203163983U
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Abstract
The utility model relates to a device for detecting the comprehensive performances of a pneumatic brake four-circuit protection valve. The device comprises a data acquisition module, an air source system, an upper computer, pressure sensors, electric proportional valves and four test circuits, wherein the data acquisition module is respectively connected with the upper computer, the air source system, the pressure sensors and the electric proportional valves. The device for detecting the comprehensive performances of the pneumatic brake four-circuit protection valve has the following beneficial effects: first, the performances of the four-circuit protection valve under different working conditions can be detected through artificial parameter setting; second, the detection process is controlled by software of a computer system, the detection process is automated, the detection control precision is improved, and the detection period is shortened; and third, the detection accuracy is greatly improved by using the sensors and a data acquisition card to carry out data measurement and acquisition respectively.
Description
Technical field
The utility model relates to Automobile air brake valve class four-loop protection valve Performance Detection field, and it discloses a kind of gas braking four-loop protection valve detection device for combination property.
Background technology
Along with rapid economy development, in continuous increase, simultaneously, road accident rate also becomes ascendant trend to the demand of automobile.Except human factor, the brake system of car performance is main inducing.Therefore all departments are to the strict demand of brake system of car performance, and passenger vehicle and trailer adopt the multiloop air braking system more at present, and under the failure conditions of a certain loop, other loops are air feed and inflation normally, to improve automobile brake perfrmance.Four-loop protection valve is as one of main valve body in the multiloop air braking system, and it provides four brake circuits for the multi-circuit braking system, guarantees after losing efficacy in a certain loop, and other loops can operate as normal, with the raising automobile brake perfrmance.At present; domestic most research is primarily aimed at the research of the combination property of main valve in the air brake valve class, abs pressure regulator, ABS solenoid valve and brake chamber; specially at the research of the Performance Detection of four-loop protection valve seldom; simulation study is simplified and just carried out to a small amount of document to four-loop protection valve; a small amount of document is just taken into account the detection of its some characteristic; can not satisfy the detection of its combination property; and detection system exists automaticity not high; problems such as test event is incomplete, and the single and measuring accuracy of test operating mode is low.
The utility model content
The utility model aims to provide a kind of gas braking four-loop protection valve combination property detection method and system; solve low, the not congruent problem of test item of efficient that present gas braking four-loop protection valve combination property detects, reach and detect accurately stable purpose of operating mode variation, testing process robotization, testing result.
The technical scheme that the prior art problem that solves the utility model adopts is: design and make a kind of gas braking four-loop protection valve detection device for combination property,
Comprise data acquisition module, air supply system, host computer, baroceptor and electric Proportion valve and four test loops; Described data acquisition module is connected with described host computer, air supply system, baroceptor and electric Proportion valve respectively.
As further improvement of the utility model: described data acquisition module links to each other with described host computer by pci bus or wired mode; Described electric Proportion valve links to each other with data acquisition module analog output channel A/O, sends instruction adjusting electric Proportion valve by host computer and makes its control air pressure air inlet and deflation rate.
As further improvement of the utility model: described air supply system comprises: air compressor machine, instrument air dryer, retaining valve, quick release valve, 4L air drum, baroceptor and electric Proportion valve; Described four test loops are the loop that four gas outlets of tested four-loop protection valve link to each other with 1L air drum, baroceptor, electric Proportion valve and exhaust system respectively and constitute.
The beneficial effects of the utility model are: the utility model can detect the performance of four-loop protection valve under the different operating modes by artificial parameter setting; Simultaneously, testing process is by controlling detection by the software of computer system, and test process automation has improved control accuracy, has shortened sense cycle; Carry out DATA REASONING and collection by sensor and data collecting card, improved accuracy of detection greatly.
Description of drawings
Fig. 1 gas braking four-loop protection valve combination property detection method process flow diagram;
Fig. 2 gas braking four-loop protection valve combination property detection system structural drawing;
Fig. 3 gas braking four-loop protection valve combination property detection system software flow pattern;
Fig. 4 gas braking four-loop protection valve combination property detects schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As Fig. 1, gas braking four-loop protection valve combination property detection method, may further comprise the steps: S1 puts into pick-up unit with tested valve, and it is fixed; The S2 testing staff selects test event, and relevant parameter is set, and starts test; The S3 upper computer software sends instruction according to test procedure to the data capture card according to the parameter of test event and setting, and the control electric Proportion valve is realized the step-less adjustment of air pressure, and system's air inlet speed and deflation rate size are controlled, and realizes that combination property detects; The S4 baroceptor is gathered each mouthful atmospheric pressure value and is transferred to data collecting card A/D mouth and carry out transferring to industrial computer after signal handles; S5 industrial computer software is handled in real time, is shown and preservation measurement data.
Among the described step S2, described test event comprises opening pressure, dynamic closing presure, static closing presure and performing leak test project; Source of the gas air feed speed is lower than the deflation rate in corresponding inefficacy loop in the detection of dynamic closing presure.
Among the described step S3, described instruction comprises: in the opening pressure test, regulate electric Proportion valve and make the corresponding inefficacy of four-loop protection valve air intake opening air inlet speed and gas outlet loop deflation rate maximum, other loop, gas outlet deflation rate are zero; Dynamically in the closing presure test, regulate electric Proportion valve control four-loop protection valve air intake opening air pressure air feed speed and be lower than corresponding inefficacy loop, its gas outlet air pressure deflation rate; In the static closing presure test, when each circuit pressure rose to working range, it was zero that the adjusting electric Proportion valve makes its air intake opening air inlet speed, corresponding inefficacy loop, gas outlet deflation rate maximum.
Among the described step S4, described baroceptor is gathered air intake opening and gas outlet air drum air pressure size respectively, and links to each other with described data acquisition module A/D mouth.
A kind of gas braking four-loop protection valve detection device for combination property comprises data acquisition module, air supply system, host computer, baroceptor and electric Proportion valve, tested valve and four test loops; Described data acquisition module is connected with described host computer, air supply system, baroceptor and electric Proportion valve respectively; Described tested valve is connected with described four test loops respectively; Described tested valve is connected with described air supply system, baroceptor and electric Proportion valve respectively.Described data acquisition module links to each other with described host computer by pci bus or wired mode; Described electric Proportion valve links to each other with data acquisition module analog output channel A/O, and described host computer sends the adjusting electric Proportion valve.Described air supply system includes but not limited to: 4L air drum, baroceptor and electric Proportion valve; Article four, test loop is the loop that four gas outlets of tested valve link to each other with 1L air drum, baroceptor, electric Proportion valve and exhaust system respectively and constitute.
Among the described step S5, establish opening pressure test, dynamically closing presure test, the test of static closing presure and performing leak test module in the host computer; In dynamically closing presure is tested, by man-machine interface air inlet speed is set and is lower than deflation rate.
Described corresponding inefficacy loop is: according to described test event, regulate electric Proportion valve and control this loop, gas outlet air pressure deflation rate size, it is zero that other loop, gas outlet electric Proportion valves are regulated the air pressure deflation rate.
For this method being applied to practice, a kind of gas braking four-loop protection valve detection device for combination property has been proposed, comprise data acquisition module, air supply system, host computer, baroceptor and electric Proportion valve and four test loops; Described data acquisition module is connected with described host computer, air supply system, baroceptor and electric Proportion valve respectively; Establish software processing module in the described host computer; The data of described software processing module real-time processing data acquisition module transmission are also drawn by man-machine interface and to be shown that the computational analysis experimental data obtains the four-loop protection valve performance parameter; Described software processing module preserves and generates laboratory report to data.
Described data acquisition module links to each other with described host computer by pci bus or wired mode; Described electric Proportion valve links to each other with data acquisition module analog output channel A/O, sends instruction adjusting electric Proportion valve by host computer and makes its control air pressure air inlet and deflation rate.
Described air supply system comprises: air compressor machine, instrument air dryer, retaining valve, quick release valve, 4L air drum, baroceptor and electric Proportion valve; Described four test loops are the loop that four gas outlets of tested four-loop protection valve link to each other with 1L air drum, baroceptor, electric Proportion valve and exhaust system respectively and constitute.
Among a kind of embodiment, as Fig. 4, each the bar test loop in four test loops is by exhaust system 41, electric Proportion valve 42, and 1L air drum 43, baroceptor 44 is formed.Air supply system 13 comprises 4L air drum 11 and electric Proportion valve 42 at least, tested valve 12 is connected with air supply system 13 with four test loops respectively, wherein four mouths in the tested valve 12 are connected respectively with four test loops, and the another one mouth is connected with air supply system 13.
This gas braking four-loop protection valve combination property detection method has been used in the practice, designed its detection system.Be the detection system structural drawing as Fig. 2, comprise data acquisition system (DAS), air supply system, computer system, exhaust system, baroceptor and electric Proportion valve; Comprise four test loops; Described data acquisition system (DAS) is connected with described computer system, baroceptor, electric Proportion valve and exhaust system respectively; Described computer system comprises saved software in industrial computer and the industrial computer; Described software can transmit next data and show that by the man-machine interface drawing computational analysis experimental data obtains the four-loop protection valve performance parameter by the real-time processing data capture card; Simultaneously, can preserve and generate laboratory report to data.
Described electric Proportion valve links to each other with the analog output channel A/O of described data collecting card, send instruction by industrial computer software to data collecting card, data collecting card analog output channel output analog quantity is regulated control electric Proportion valve control air pressure air inlet speed and deflation rate, realizes the stepless control of air pressure.
Detect schematic diagram as Fig. 4 for system, air supply system is inflated to the 4L air drum, and control air pressure speed by electric Proportion valve and inflate to tested valve air intake opening 1, and to each gas outlet 21,22,23,24 mouthfuls air pressure is provided, open the pressure limiting non-return valve to each gas outlet 1L air drum inflation, the A/D that baroceptor was gathered each air drum atmospheric pressure value and transferred to data collecting card this moment carries out being sent to industrial computer after signal is handled; Industrial computer sends command signal to data collecting card, and data collecting card sends instruction by analog output channel A/O to each electric Proportion valve, regulates electric Proportion valve control air intake opening and each gas outlet air pressure speed, satisfies test request.
In the reality test, tested valve is fixed, start software and measure, be the software test process flow diagram as Fig. 3, start software and select test event:
(1) opening pressure test: control electric Proportion valve adjusting tested valve air intake opening input air pressure reaches working pressure 800kPa in the program, the control electric Proportion valve is regulated a certain loop, tested valve gas outlet output pressure and is the inefficacy loop, other loops are in running order normal, force value and demonstration when baroceptor is gathered this inefficacy loop and air intake opening balance; Repeating above-mentioned steps has successively detected up to all loops, gas outlet.
(2) dynamically closing presure test: air intake opening inflation rate and gas outlet deflation rate at first are set, and inflation rate is lower than deflation rate; Send signal by program to data collecting card then, the air pressure speed of control electric Proportion valve condition air intake opening and corresponding gas outlet is again by baroceptor image data and demonstration; Repeating above-mentioned steps has successively detected up to all loops, gas outlet.
(3) static closing presure test: at first make each loop air pressure rise to working range, it is zero that adjusting air intake opening electric Proportion valve makes air pressure, disconnect each gas outlet then respectively and lost efficacy separately successively in its loop, other loop sensors are gathered this loop atmospheric pressure value size respectively and are transferred to industrial computer by data collecting card and show.
(4) performing leak test: at first make each loop air pressure rise to working range; timing is gathered each loop atmospheric pressure value size respectively and is transferred to industrial computer by data collecting card by sensor and shows, judges the sealing property of four-loop protection valve by the atmospheric pressure value that compares each loop different time sections.
To detect data in real time and be presented on the interface in each project testing process, and judge whether all gas outlets finish detection successively, if not, then the continuation detection all detects up to all gas outlets and finishes.After experiment finished, man-machine interface can be reappeared data with existing according to operating personnel's instruction, and data file is generated its corresponding test report.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (3)
1. a gas braking four-loop protection valve detection device for combination property is characterized in that: comprise data acquisition module, air supply system, host computer, baroceptor and electric Proportion valve, tested valve and four test loops; Described data acquisition module is connected with described host computer, air supply system, baroceptor and electric Proportion valve respectively; Described tested valve is connected with described four test loops respectively; Described tested valve is connected with described air supply system, baroceptor and electric Proportion valve respectively.
2. gas according to claim 1 is braked the four-loop protection valve detection device for combination property, it is characterized in that: described data acquisition module links to each other with described host computer by pci bus or wired mode; Described electric Proportion valve links to each other with data acquisition module analog output channel A/O, and described host computer sends the adjusting electric Proportion valve.
3. gas according to claim 1 is braked the four-loop protection valve detection device for combination property, and it is characterized in that: described air supply system includes but not limited to: 4L air drum, baroceptor and electric Proportion valve; Article four, test loop is the loop that four gas outlets of tested valve link to each other with 1L air drum, baroceptor, electric Proportion valve and exhaust system respectively and constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320184748 CN203163983U (en) | 2013-04-12 | 2013-04-12 | Device for detecting comprehensive performances of pneumatic brake four-circuit protection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320184748 CN203163983U (en) | 2013-04-12 | 2013-04-12 | Device for detecting comprehensive performances of pneumatic brake four-circuit protection valve |
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| CN203163983U true CN203163983U (en) | 2013-08-28 |
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| CN 201320184748 Expired - Fee Related CN203163983U (en) | 2013-04-12 | 2013-04-12 | Device for detecting comprehensive performances of pneumatic brake four-circuit protection valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162956A (en) * | 2013-04-12 | 2013-06-19 | 中国测试技术研究院电子研究所 | Method and system for detecting comprehensive performance of pneumatic brake four circuit protection valve |
| CN108303269A (en) * | 2018-02-01 | 2018-07-20 | 广州市米萨汽车电子科技有限公司 | Fault detection system and method for motor vehicle braking system |
-
2013
- 2013-04-12 CN CN 201320184748 patent/CN203163983U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162956A (en) * | 2013-04-12 | 2013-06-19 | 中国测试技术研究院电子研究所 | Method and system for detecting comprehensive performance of pneumatic brake four circuit protection valve |
| CN103162956B (en) * | 2013-04-12 | 2015-06-17 | 中国测试技术研究院电子研究所 | Method and system for detecting comprehensive performance of pneumatic brake four circuit protection valve |
| CN108303269A (en) * | 2018-02-01 | 2018-07-20 | 广州市米萨汽车电子科技有限公司 | Fault detection system and method for motor vehicle braking system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SICHUAN NIMTT ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ELECTRONICS INSTITUTE CHINA ACADEMY OF TESTING TECHNOLOGY Effective date: 20131210 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131210 Address after: 610021 Sichuan city of Chengdu province Chenghua District Yushuang Road No. 10 Patentee after: Sichuan NIMTT Electronic Technology Co., Ltd. Address before: 610021 Sichuan city of Chengdu province Chenghua District Yushuang Road No. 10 Patentee before: Electronic Research Insitutue, National Institute of Measurement and Testing Technology |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20160412 |
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| CF01 | Termination of patent right due to non-payment of annual fee |