CN202886104U - Fault diagnosis system for electric control engine bench test process - Google Patents
Fault diagnosis system for electric control engine bench test process Download PDFInfo
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- CN202886104U CN202886104U CN 201220587513 CN201220587513U CN202886104U CN 202886104 U CN202886104 U CN 202886104U CN 201220587513 CN201220587513 CN 201220587513 CN 201220587513 U CN201220587513 U CN 201220587513U CN 202886104 U CN202886104 U CN 202886104U
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Abstract
The utility model discloses an automatically controlled engine bench test process fault diagnosis system, including the engine test bench, establish the engine on the engine test bench, the engine includes the automatically controlled module of engine, it still includes CPU, fault code storage module, CAN bus communication controller, CAN transceiver module and display module, the automatically controlled module of engine passes through CAN bus connection CAN transceiver module, CAN bus communication controller is connected to CAN transceiver module, CAN bus communication controller passes through data and address bus connection CPU's communication end, CPU's display signal output part connects display module, CPU's data communication interface connects fault code storage module. The utility model discloses make the trouble code that can direct display engine produce when automatically controlled engine bench test on the LCD display module to give the fault information that the trouble code corresponds. The development speed of the engine is obviously improved.
Description
Technical field
The utility model relates to the Engine Failure Diagnostic Technology field, specifically a kind of electric-control motor bench test process fault diagnosis system.
Background technology
Vehicle motor has trended towards electric-control motor at present, and electric-control motor is in the process of carrying out bench test, and the electric-control system that it is inner and some parts easily break down, and affect the normal operation of engine rig test.In case engine breaks down, can only go diagnosis by professional tool, diagnose out corresponding failure code after, and then according to the guide of failure code, manually search the corresponding failure cause of this failure code, and then go service engine.Above-mentioned method for diagnosing faults is wasted time and energy, and sometimes because professional and technical personnel's shortage can not in time be carried out manual detection to the breakdown in the motor code, has delayed a large amount of time, has affected the development progress of engine.
Summary of the invention
The purpose of this utility model is to provide a kind of electric-control motor bench test process fault diagnosis system for above-mentioned deficiency, and this system can have the fault that electric-control motor exists by intelligent diagnostics when carrying out bench test, improved the tempo of development of engine.
The utility model is achieved in that and comprises threst stand, be located at the engine on the threst stand, described engine comprises engine electric-controlled module, it is characterized in that: it also comprises CPU(Central Processing Unit, central processing unit), the diagnostic trouble code memory module, CAN(Controller Area Network, controller local area network) bus communication controller, CAN transceiver module and display module, wherein, described engine electric-controlled module connects the CAN transceiver module by the CAN bus, described CAN transceiver module connects CAN bus communication controller, described CAN bus communication controller connects the communication ends of CPU by data and address bus, the display output terminal of described CPU connects display module, and the data communication interface of CPU connects the diagnostic trouble code memory module.
Described engine also comprises cylinder pressure sensor and cranking-motor relay, and the signal output part of described cylinder pressure sensor connects CPU by wave filter; The switching value signal communication ends of described cranking-motor relay connects CPU by the first photoelectric isolation module.
Also be connected with the second photoelectric isolation module between described CAN transceiver module and the CAN bus communication controller.
Described CPU also is connected with the Clock management module.
Described display module is LCD(Liquid Crystal Display, liquid crystal display) display module.
The utility model is by setting up CPU, diagnostic trouble code memory module, CAN bus communication controller, CAN transceiver module and display module, so that can directly show the failure code that engine produces on the LCD display module when the electric-control motor bench test, and provide failure message corresponding to failure code.Significantly improved the tempo of development of engine.
Description of drawings
Fig. 1 is structured flowchart of the present utility model.
Embodiment
Further specify the utility model below in conjunction with drawings and Examples.
Embodiment: as shown in Figure 1, comprise threst stand, be located at the engine on the threst stand, engine comprises engine electric-controlled module, it also comprises CPU, the diagnostic trouble code memory module, CAN bus communication controller, CAN transceiver module and display module, wherein, engine electric-controlled module connects the CAN transceiver module by the CAN bus, the CAN transceiver module connects CAN bus communication controller, CAN bus communication controller connects the communication ends of CPU by data and address bus, the display output terminal of CPU connects display module, the data communication interface of CPU connects the diagnostic trouble code memory module, namely becomes the utility model.
In the technique scheme, described engine also comprises cylinder pressure sensor and cranking-motor relay, and the signal output part of described cylinder pressure sensor connects CPU by wave filter; The switching value signal communication ends of described cranking-motor relay connects CPU by the first photoelectric isolation module.The working signal of above-mentioned cylinder pressure sensor and cranking-motor relay directly sends to CPU, judges by CPU whether it works, and shows by display module.
In the technique scheme, also be connected with the second photoelectric isolation module between CAN transceiver module and the CAN bus communication controller.The second photoelectric isolation module can suppress system noise effectively to be disturbed.
In the technique scheme, CPU also is connected with the Clock management module.
In the technique scheme, display module is the LCD display module.
During the utility model work: according to engine electric-controlled module relative program and relevant communications protocol, define handshake message order and the interval time of engine electric-controlled module and CAN bus.After fault diagnosis system obtained order, CPU set up Handshake Protocol with engine electric-controlled module immediately, then timed sending " ReadDTC " request message.Engine electric-controlled module is after setting up carrying out shake communication with CPU, in time, is engraved in and waiting for that CPU sends message, in case after receiving " ReadDTC " message of fault diagnosis system, transfer immediately the failure code in the diagnostic trouble code memory module, then with corresponding message format, response is to CPU, after CPU receives response message, according to corresponding format protocol, extract diagnostic trouble code numerical value, then table look-up according to the diagnostic trouble code storehouse, corresponding Chinese fault title is shown by the LCD display module, simultaneously corresponding maintenance direction is also shown by the LCD display module, laboratory technician and stand maintainer can find out corresponding diagnostic trouble code and maintenance direction intuitively.
Claims (5)
1. electric-control motor bench test process fault diagnosis system, comprise threst stand, be located at the engine on the threst stand, described engine comprises engine electric-controlled module, it is characterized in that: it also comprises CPU, the diagnostic trouble code memory module, CAN bus communication controller, CAN transceiver module and display module, wherein, described engine electric-controlled module connects the CAN transceiver module by the CAN bus, described CAN transceiver module connects CAN bus communication controller, described CAN bus communication controller connects the communication ends of CPU by data and address bus, the display output terminal of described CPU connects display module, and the data communication interface of CPU connects the diagnostic trouble code memory module.
2. electric-control motor bench test process fault diagnosis system according to claim 1, it is characterized in that: described engine also comprises cylinder pressure sensor and cranking-motor relay, the signal output part of described cylinder pressure sensor connects CPU by wave filter; The switching value signal communication ends of described cranking-motor relay connects CPU by the first photoelectric isolation module.
3. electric-control motor bench test process fault diagnosis system according to claim 1 and 2 is characterized in that: also be connected with the second photoelectric isolation module between described CAN transceiver module and the CAN bus communication controller.
4. electric-control motor bench test process fault diagnosis system according to claim 1 and 2, it is characterized in that: described CPU also is connected with the Clock management module.
5. electric-control motor bench test process fault diagnosis system according to claim 1 and 2, it is characterized in that: described display module is the LCD display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220587513 CN202886104U (en) | 2012-11-09 | 2012-11-09 | Fault diagnosis system for electric control engine bench test process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220587513 CN202886104U (en) | 2012-11-09 | 2012-11-09 | Fault diagnosis system for electric control engine bench test process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886104U true CN202886104U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220587513 Expired - Fee Related CN202886104U (en) | 2012-11-09 | 2012-11-09 | Fault diagnosis system for electric control engine bench test process |
Country Status (1)
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| CN (1) | CN202886104U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568452A (en) * | 2015-01-09 | 2015-04-29 | 哈尔滨东安发动机（集团）有限公司 | Aircraft engine test site digital bus control device |
| CN105134398A (en) * | 2014-05-30 | 2015-12-09 | 广州汽车集团股份有限公司 | Engine control method and controller used for bench test and bench test system |
| CN106441914A (en) * | 2016-10-09 | 2017-02-22 | 株洲耀辉光机电研究开发有限公司 | Display control combination testing system based on gas turbine engine application |
| CN108919788A (en) * | 2018-09-10 | 2018-11-30 | 汽-大众汽车有限公司 | A kind of remote monitoring system and method for the automobile bench test based on vehicle-mounted CAN bus |
-
2012
- 2012-11-09 CN CN 201220587513 patent/CN202886104U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134398A (en) * | 2014-05-30 | 2015-12-09 | 广州汽车集团股份有限公司 | Engine control method and controller used for bench test and bench test system |
| CN105134398B (en) * | 2014-05-30 | 2019-08-06 | 广州汽车集团股份有限公司 | Engine control, controller and Bench Test System for bench test |
| CN104568452A (en) * | 2015-01-09 | 2015-04-29 | 哈尔滨东安发动机（集团）有限公司 | Aircraft engine test site digital bus control device |
| CN106441914A (en) * | 2016-10-09 | 2017-02-22 | 株洲耀辉光机电研究开发有限公司 | Display control combination testing system based on gas turbine engine application |
| CN108919788A (en) * | 2018-09-10 | 2018-11-30 | 汽-大众汽车有限公司 | A kind of remote monitoring system and method for the automobile bench test based on vehicle-mounted CAN bus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20131109 |