CN101839782B - Eddy current retarder test system and method thereof - Google Patents

Eddy current retarder test system and method thereof Download PDF

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Publication number
CN101839782B
CN101839782B CN2010101883827A CN201010188382A CN101839782B CN 101839782 B CN101839782 B CN 101839782B CN 2010101883827 A CN2010101883827 A CN 2010101883827A CN 201010188382 A CN201010188382 A CN 201010188382A CN 101839782 B CN101839782 B CN 101839782B
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test
host computer
current
measured
vortex retarder
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CN101839782A (en
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伍中权
梁勇
陈永平
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SHENZHEN TERCA INFORMATION TECHNOLOGY CO., LTD.
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TEERJIA SCIENCE-TECHNOLOGY Co Ltd SHENZHEN
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Abstract

The invention relates to an eddy current retarder test system and a method thereof. The test system comprises a eddy current retarder (2) to be tested, a test instrument, a test plate (1) for collection and an accessory thereof and a host computer for comprehensively processing and outputting test results and for recording. The method comprises the following steps that: the test plate and the accessory thereof collects temperature, current and work state signals of the eddy current retarder to be tested to be transmitted to the host computer after being converted into corresponding data signals, and at the same time, the test instrument collects the rotation speed and the torque of the eddy current retarder and transmits the rotation speed and the torque to the host computer in a data signal way; and the host computer receives the data signals transmitted by the test plate and the test instruments to be compared with correction standard data and outputs the test results. The eddy current retarder test system and the method thereof can reduce the labor intensity of the manual test, improve the test efficiency and reduce the possibility of the mistake judgment.

Description

A kind of eddy current retarder test system and method thereof
Technical field
The present invention relates to automobile brake equipment, be specifically related to a kind of eddy current retarder test system and method thereof.
Background technology
Current vortex retarder is a kind of auxiliary brake device for automobile, is commonly called as electricity and stops, and is mainly used in motorbus, urban public traffic vehicles and heavy truck.This device is installed between automobile drive axle and the wheel box, realizes contactless braking by electromagnetic induction principle.
Traditional electrical eddy current retarder test need see manually that pilot lamp and various instrument show, then one by one with standard value verification, record, labour intensity is big like this, efficient is low, and judges by accident easily or misregistration.
Summary of the invention
The technical issues that need to address of the present invention are, how a kind of eddy current retarder test system and method thereof are provided, and can reduce manual testing's labour intensity, improve testing efficiency, reduce probability of miscarriage of justice, guarantee that test data is true.
First technical matters of the present invention solves like this: make up a kind of eddy current retarder test system, comprising:
Test instrumentation is used to test the rotating speed and the moment of torsion of current vortex retarder to be measured;
Test board, by test port and corresponding cable with the temperature sensor that is used to measure described current vortex retarder working temperature to be measured, the current transducer that is used to measure described current vortex retarder working current to be measured is connected with the driver that is used to test the pilot lamp of described current vortex retarder duty to be measured and is used to drive described current vortex retarder to be measured, be used for datumization and handle temperature, electric current and the working state signal that described test port feeds back to;
Host computer is connected with test board with described test instrumentation, is used to receive the test data of described test instrumentation and test board and comprehensively relatively judges, outputs test result with the verification normal data.
According to test macro provided by the invention, described current vortex retarder to be measured is electrically connected described driver, current transducer and pilot lamp, and described temperature sensor is placed on the described current vortex retarder.
According to test macro provided by the invention, test board comprises output control unit, switching value signal reshape unit, current/voltage converting unit, the AD conversion unit of control module and connection thereof in the described test macro; Described output control unit is electrically connected described driver, described switching value signal reshape unit is electrically connected described pilot lamp, described current/voltage converting unit is electrically connected described current transducer, and described AD conversion unit signal amplification unit in described test board connects described temperature sensor.
According to test macro provided by the invention, described test instrumentation connects described host computer by serial ports.
According to test macro provided by the invention, described test board includes, but are not limited to connect host computer by controller area network CAN.
According to test macro provided by the invention, described host computer connects CAN by the general-purpose serial bus USB interface through the CAN-USB converter.
According to test macro provided by the invention, this test macro also comprises the identity recognition device that is used to discern current vortex retarder identity marks to be measured that is connected with described host computer.
According to test macro provided by the invention, it is bar code that described identity marks includes, but are not limited to, and it is barcode scanner that described identity recognition device includes, but are not limited to.
Another technical matters of the present invention solves like this: make up a kind of current vortex retarder method of testing, may further comprise the steps:
The test board that host computer is controlled its connection drives current vortex retarder to be measured;
Send to described host computer after temperature, electric current and the working state signal that described test board is gathered described current vortex retarder to be measured is converted to the corresponding data signal, test instrumentation is gathered the rotating speed of described current vortex retarder to be measured and moment of torsion and is sent to described host computer in the data-signal mode simultaneously;
Described host computer receives the data-signal and the verification normal data of described test board and test instrumentation transmission and comprehensively relatively judges, outputs test result.
According to method of testing provided by the invention, host computer is discerned the identity of current vortex retarder to be measured and classification and is obtained the corresponding check normal data automatically according to described classification by the identity recognition device of its connection, also forms corresponding test record according to described identity after test is finished.
Eddy current retarder test system provided by the invention and method thereof adopt full-automatic test, have the following advantages than prior art:
1. intelligence test---data acquisition, testing process, result judge all has system to finish automatically, can multiple qualified Rule of judgment intelligent decision by the host computer setting, reduce manual testing's labour intensity, and improve testing efficiency, reduce probability of miscarriage of justice;
2. guaranteeing the test data authenticity---sequence number, test data collection are to upper computer software, and test is finished data and stored into automatically in the read-only file, has avoided the possibility of manual intervention data, has guaranteed the authenticity of test data;
3. the various informative property of communication---both can realize distributed communication by the CAN bus, and also can realize point-to-point communication by serial ports, system forms more flexible like this.
Description of drawings
Further the present invention is described in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is an eddy current retarder test system connection diagram of the present invention;
Fig. 2 be shown in test board electricity theory diagram in the system;
Fig. 3 is a current vortex retarder method of testing schematic flow sheet of the present invention.
Embodiment
The present invention will be described in conjunction with the specific embodiment of the invention:
As shown in Figure 1, eddy current retarder test system of the present invention comprises test instrumentation, test board 1 and driver, pilot lamp, current transducer and the temperature sensor, current vortex retarder to be measured 2, host computer and the barcode scanner that connect, described driver, pilot lamp and current transducer also are connected current vortex retarder 2 to be measured, and dotted line represents that temperature sensor, test instrumentation and current vortex retarder to be measured 2 have test and the tested corresponding physical position relation that concerns among the figure.Contain control module (as: single-chip microcomputer) in the test board 1, connect host computer by CAN, host computer connects CAN by self USB port through CAN-USB.Test instrumentation is connected with host computer by serial ports and corresponding cable.Barcode scanner is used to scan the bar code of current vortex retarder 2 to be measured.
One of core of the present invention: test board 1, circuit structure as shown in Figure 2, this embodiment adopts single-chip microcomputer to make control module, the output control unit that comprises single-chip microcomputer and connection thereof, the switching value signal reshape unit, the current/voltage converting unit, AD conversion unit, connect the test of current vortex retarder 2 or drive accessory by test port and corresponding cable, wherein: described output control unit is electrically connected the ㈠ driver, described switching value signal reshape unit is electrically connected the ㈡ pilot lamp, described current/voltage converting unit is electrically connected the ㈢ current transducer, and described AD conversion unit signal amplification unit in described test board connects the ㈣ temperature sensor.Described current/voltage converting unit is converted to voltage signal with 4 ~ 20mA current signal; This test board 1 also comprises CAN communication controller and the CAN communication receiving/transmission device that is connected with single-chip microcomputer, and described test board 1 is connected with the CAN network by CAN communication receiving/transmission device.Above-mentioned ㈠ driver, thereby be electrically connected, be used to drive current vortex retarder 2 work with current vortex retarder 2 and begin test, the ㈡ pilot lamp, be electrically connected, comprise pilot lamp with current vortex retarder 2 and be used for when test indication current vortex retarder 2 duties, the ㈢ current transducer, be electrically connected, be used to measure the working current of current vortex retarder 2 with current vortex retarder 2, the ㈣ temperature sensor is placed in current vortex retarder 2 correspondence positions, the actual work temperature when being used for induced electricity eddy current retarder 2 test.
Two of core of the present invention: the test procedure of built-in host computer and and test board 1 and test instrumentation between data communication, specifically as shown in Figure 3, specifically may further comprise the steps:
Scan current vortex retarder 2 bar code number to be tested, be filled up to host computer software automatically;
Host computer is transferred this examination and test of products canonical parameter according to bar code number;
Host computer is tested according to hit testing button instruction execution:
(control panel drives current vortex retarder work, and collecting temperature, electric current, working state signal, by the CAN bus broadcast;
The moment of torsion rotational speed meters is gathered rotating speed, braking torque information sends to host computer by serial ports)
Host computer receives the CAN bus message of control panel broadcasting and the Serial Port Information that the moment of torsion rotational speed meters transmits by the CAN-USB converter;
Host computer with measured data record, demonstration, curve plotting, with the test stone data relatively;
Meet test stone parameter host computer and give a green light, it is qualified to show, otherwise sends out a warning;
Host computer is that filename is saved in the EXCEL file with test data with the bar code number, and file is set to read-only.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.

Claims (10)

1. an eddy current retarder test system is characterized in that, comprising:
Test instrumentation is used to test the rotating speed and the moment of torsion of current vortex retarder to be measured (2);
Test board (1), by test port and corresponding cable with the temperature sensor that is used to measure described current vortex retarder working temperature to be measured, the current transducer that is used to measure described current vortex retarder working current to be measured is connected with the driver that is used to test the pilot lamp of described current vortex retarder duty to be measured and is used to drive described current vortex retarder to be measured, be used for datumization and handle temperature, electric current and the working state signal that described test port feeds back to;
Host computer is connected with test board with described test instrumentation, is used to receive the test data of described test instrumentation and test board and comprehensively relatively judges, outputs test result with the verification normal data.
2. according to the described test macro of claim 1, it is characterized in that described current vortex retarder to be measured (2) is electrically connected described driver, current transducer and pilot lamp, described temperature sensor is placed on the described current vortex retarder.
3. according to the described test macro of claim 2, it is characterized in that test board in the described test macro (1) comprises output control unit, switching value signal reshape unit, current/voltage converting unit, the AD conversion unit of control module and connection thereof; Described output control unit is electrically connected described driver, described switching value signal reshape unit is electrically connected described pilot lamp, described current/voltage converting unit is electrically connected described current transducer, and described AD conversion unit signal amplification unit in described test board connects described temperature sensor.
4. according to the described test macro of claim 1, it is characterized in that described test instrumentation connects described host computer by serial ports.
5. according to the described test macro of claim 1, it is characterized in that described test board connects host computer by controller area network.
6. according to the described test macro of claim 5, it is characterized in that described host computer connects controller area network by USB interface via controller local area network-USB converter.
7. according to the described test macro of claim 1, it is characterized in that this test macro also comprises the identity recognition device that is used to discern current vortex retarder to be measured (2) identity marks that is connected with described host computer.
8. according to the described test macro of claim 7, it is characterized in that described identity marks is a bar code, described identity recognition device is a barcode scanner.
9. a current vortex retarder method of testing is characterized in that, may further comprise the steps:
The test board that host computer is controlled its connection drives current vortex retarder to be measured (2);
Described test board (1) is gathered temperature, electric current and the working state signal of described current vortex retarder to be measured, and be converted to the corresponding data signal, send to described host computer then, simultaneously test instrumentation is gathered the rotating speed of described current vortex retarder to be measured and moment of torsion and is sent to described host computer in the data-signal mode;
Described host computer receives the data-signal and the verification normal data of described test board and test instrumentation transmission and comprehensively relatively judges, outputs test result.
10. according to the described method of testing of claim 9, it is characterized in that, host computer is discerned the identity of current vortex retarder to be measured (2) and classification and is obtained the corresponding check normal data automatically according to described classification by the identity recognition device of its connection, also forms corresponding test record according to described identity after test is finished.
CN2010101883827A 2010-06-01 2010-06-01 Eddy current retarder test system and method thereof Active CN101839782B (en)

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Application Number Priority Date Filing Date Title
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Families Citing this family (14)

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Publication number Priority date Publication date Assignee Title
CN103264692B (en) * 2013-04-28 2015-09-16 深圳市特尔佳科技股份有限公司 A kind of hydrodynamic retarder monitoring system and method thereof
CN103454093B (en) * 2013-08-22 2016-02-03 深圳市特尔佳科技股份有限公司 A kind of handheld type retarder general-purpose tester
CN104897414A (en) * 2015-06-10 2015-09-09 安徽安凯汽车股份有限公司 Test system for testing comprehensive performance of eddy current retarder and test method thereof
CN105068531A (en) * 2015-09-07 2015-11-18 安徽安凯汽车股份有限公司 Test system of auxiliary brake controller and test method of test system
CN105093046A (en) * 2015-09-17 2015-11-25 上海电机系统节能工程技术研究中心有限公司 Measurement and control device used for eddy current retarder delivery inspection
CN105424379A (en) * 2015-11-21 2016-03-23 成都科瑞信科技有限责任公司 Eddy current retarder testing system based on adjustable signal filtering and temperature detection
CN105258957A (en) * 2015-11-21 2016-01-20 成都科瑞信科技有限责任公司 Eddy current retarder test system on the basis of filtering adjustment and emitter-coupled amplification
CN105466675A (en) * 2015-11-21 2016-04-06 成都科瑞信科技有限责任公司 Electric eddy current retarder test system based on emitter coupling type amplification circuit
CN105486516A (en) * 2015-11-21 2016-04-13 成都科瑞信科技有限责任公司 Eddy current retarder test system based on accurate temperature detection
CN105300708A (en) * 2015-11-21 2016-02-03 成都科瑞信科技有限责任公司 Eddy current retarder test system based on torque signal filtering adjustment
CN105302030A (en) * 2015-11-21 2016-02-03 成都科瑞信科技有限责任公司 Voltage conversion type eddy current retarder test system based on signal filtering adjustment
CN105486517A (en) * 2015-11-21 2016-04-13 成都科瑞信科技有限责任公司 Novel eddy current retarder test system
CN105301414A (en) * 2015-11-21 2016-02-03 成都科瑞信科技有限责任公司 Eddy current retarder test system based on voltage conversion
CN108873856A (en) * 2018-04-10 2018-11-23 深圳市特尔佳信息技术有限公司 The test method of controller of current vortex retarder

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Effective date of registration: 20171124

Address after: 518000 Shenzhen Software Park 12 building 301-A, Nanshan District science and technology two, Shenzhen City, Guangdong

Patentee after: SHENZHEN TERCA INFORMATION TECHNOLOGY CO., LTD.

Address before: 518000 Shenzhen Software Park, two road, Nanshan District science and technology, Shenzhen, Guangdong province 301, 301

Patentee before: Teerjia Science-Technology Co., Ltd., Shenzhen