CN202836971U - Engine state monitoring and fault diagnosis module - Google Patents
Engine state monitoring and fault diagnosis module Download PDFInfo
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- CN202836971U CN202836971U CN 201220433410 CN201220433410U CN202836971U CN 202836971 U CN202836971 U CN 202836971U CN 201220433410 CN201220433410 CN 201220433410 CN 201220433410 U CN201220433410 U CN 201220433410U CN 202836971 U CN202836971 U CN 202836971U
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Abstract
The utility model discloses an engine state monitoring and fault diagnosis module, comprising a master control MCU of an ARM microprocessor, a man-machine interaction device, and a data communication device. The data communication device is connected with an engine ECU through a CAN bus, and the man-machine interaction device adopts a touch screen and an LCD display screen, so that engine state monitoring and fault diagnosis data can be intelligently obtained and displayed. The engine state monitoring and fault diagnosis module is based on the SAE J1939 protocol, is suitable for electronic monitoring, dispatching management, diagnosis and maintenance of various goods stocks and engineering vehicles such as a heavy truck driven by diesel engines, can conveniently and rapidly perform interface switching, vividly describe the parameters of an engine and visually and timely display various kinds of important engine parameters in a diversified manner so as to help an operator to timely know about the operation condition of an engine system, and also can provide abundant diagnosis information to facilitate diagnosis and maintenance.
Description
Technical field
The utility model relates to state-detection and the fault diagnosis technology field of engine, particularly relates to a kind of car engine state monitoring and fault diagnosis vehicle module based on ARM and CAN bus.
Background technology
Along with the rapid growth of automobile industry, people require also more and more higher to automobile, and wherein most important is exactly the security of travelling, and also therefore day by day receive much concern with the corresponding engine condition monitoring of safety and fault diagnosis functions critical component.
The development of computing machine, communication, sensor infotech has promoted improving constantly of automotive electronics degree, has increased the ability of vehicle condition monitoring and fault diagnosis.More current novel diagnostic systems are that the on board diagnosis system utilizes little processing electronic control unit (ECU) that each parts of electric-control system are carried out diagnosis and detection, can carry out continuous monitoring to the automobile electric control system parameter, and the intermittent fault of energy register system, looking up the fault is in time convenient, promotes the use of in some high-grade automobiles.
But, the at present research aspect automotive electronics monitoring, fault diagnosis and dealing dispatching system is still relatively weaker, research theory and model are many, practical automotive electronics monitoring, fault diagnosis and dealing dispatching system are fewer, subject matter shows as: the function of (1) engine monitor system is simple, and versatility is also poor; (2) the intelligent degree of supervisory system is low, and the real-time of system and availability are waited to improve; (3) the open not and optimization of telecommunication link does not meet international standard, and vehicle interior net and extranets system works are inharmonious, can not really realize the condition monitoring of automobile and real-time dispatch deal and fault diagnosis; (4) be not suitable for electronization monitoring with the goods stock of diesel engine drives and engineering truck.
Summary of the invention
For above-mentioned situation, the utility model purpose is for the defective that overcomes prior art or deficiency, a kind of engine state monitor and fault diagnosis module are provided, diesel motor state verification and fault diagnosis technology mainly for the use of the oversize vehicles such as heavy truck, and the theory of vehicle dynamic management information transmission, architecture and application are researched and developed, target be develop high performance, open, international vehicle diesel engines state verification and fault diagnosis intelligent object and control module ECU(Engine Control Unit), in engine production and assembling market, apply.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of engine state monitor and fault diagnosis module comprise main control MCU, human-computer interaction device, data communication equipment (DCE).Main control MCU adopts the ARM microprocessor; Data communication equipment (DCE) links to each other with main control MCU, and can be connected with Engine ECU, is used for obtaining engine condition and the failure message of Engine ECU; Human-computer interaction device links to each other with main control MCU, is used for the input control parameter, and the main control MCU mode of operation is set, and shows engine state monitor and fault diagnosis data.
Human-computer interaction device is made of touch-screen driver element, touch-screen, LCD driver element, LCD display.LCD driver element wherein links to each other with the variable static store controller FSMC of ARM microprocessor, and the touch-screen driver element links to each other with the serial peripheral equipment interface SPI of ARM microprocessor.
Data communication equipment (DCE) adopts the CAN transceiver, and this CAN transceiver links to each other respectively with the CAN controller of main control MCU, the CAN bus of Engine ECU.
A kind of engine state monitor of the present utility model and fault diagnosis module also comprise serial port level chance-over circuit.This serial port level chance-over circuit links to each other respectively with serial ports, the vehicle GPS module of main control MCU, is used for obtaining gps data.Above-mentioned human-computer interaction device can show the satellite positioning coordinate data.
The chip model of above-mentioned ARM microprocessor is STM32F103VET, is solidified with the real-time oss general-purpose built-in type Development of Graphical Interfaces system that unifies in the chip.。
Above-mentioned LCD driver element is that the chip of SSD1963 consists of by model.
Above-mentioned touch-screen driver element is that the chip of ADS7843 consists of by model.
Above-mentioned CAN transceiver is that the chip of CTM1050T consists of by model.
The beneficial effects of the utility model:
(1) antijamming capability is strong, and transfer rate is high, can guarantee data effectively, fast, stably transmission;
(2) on the basis of CAN bus and SAE J1939 agreement, take full advantage of the function of ARM micro-processor interface circuit, the upper system peripherals circuit that reduces reduces the vehicle body wiring largely, and the hardware plan software implementation has been simplified design, has reduced cost;
(3) this product is easy to use, and volume is little suitable portable, supports the SAE J1939 agreement of standard, can be used for Data Detection and the fault diagnosis of the sending out machine machine ECU that meet SAE J1939 agreement of standard;
(4) can accomplish in time, check intuitively vehicle trouble;
(5) the CAN bus consists of a network system with car load, and dirigibility that can elevator system increases equipment easily, has enlarged developable space.
(6) be applicable to electronization monitoring with the goods stock such as the heavy truck of diesel engine drives and engineering truck.
Description of drawings
Fig. 1, structural representation of the present utility model;
Fig. 2, groundwork schematic flow sheet of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described:
As shown in Figure 1, a kind of engine state monitor and fault diagnosis module that the utility model provides comprise main control MCU, human-computer interaction device, data communication equipment (DCE).Data communication equipment (DCE) links to each other with main control MCU, and can be connected with Engine ECU, is used for obtaining engine condition and the failure message of Engine ECU; Human-computer interaction device links to each other with main control MCU, is used for the input control parameter, and the main control MCU mode of operation is set, and shows engine state monitor and fault diagnosis data.
Main control MCU adopts input and output control and the digital signal of finishing communication, human-computer interaction interface as master control with the arm processor of CAN controller to resolve.
Preferably, main control MCU adopt chip model based on the Cortex-M3 kernel be 32 MCU of STM32F103VET as controller, this chip carries variable static store controller FSMC, serial peripheral equipment interface SPI, CAN controller and serial ports UART.
STM32F103VET is as the arm processor of a new generation based on the Cortex-M3 kernel, and the performance that it is remarkable and power consumption control can be applicable to widely application; And its special variable static store technology FSMC has the dirigibility of height, for the higher Embedded System Design of storage capacity requirement, can be in the situation that does not increase the external discrete device, the storage chip of expansion number of different types and capacity, reduce the complicacy of system, improved the reliability of system.
Human-computer interaction device is made of touch-screen driver element, touch-screen, LCD driver element, LCD display.LCD driver element wherein links to each other with the variable static store controller FSMC of ARM microprocessor, and the touch-screen driver element links to each other with the serial peripheral equipment interface SPI of ARM microprocessor.
The variable static store controller FSMC of main control MCU is used for showing engine state monitor and fault diagnosis data by LCD drive unit drives LCD display so that show refresh more smooth.The LCD driver element is that the chip of SSD1963 consists of by model.Preferably, LCD display is 4.3 inches.
The serial peripheral equipment interface SPI of main control MCU is used for the input control parameter by touch-screen drive unit drives touch-screen, and the main control MCU mode of operation is set, and replaces the key control circuit of traditional complexity, so that system is more compact.Preferably, the touch-screen driver element is that the chip of ADS7843 consists of by model.
Data communication equipment (DCE) adopts the CAN transceiver, and this CAN transceiver links to each other respectively with the CAN controller of main control MCU, the CAN bus of Engine ECU.The CAN controller of main control MCU links to each other with the CAN bus of Engine ECU by the CAN transceiver with high-speed isolated, is used for obtaining engine condition and the failure message of Engine ECU, can reduce external signal to the interference of system.Preferably, the CAN transceiver is that the chip of CTM1050T consists of by model.
Further, a kind of engine state monitor of the present utility model and fault diagnosis module also comprise the RS232 serial port level chance-over circuit.This serial port level chance-over circuit links to each other respectively with serial ports UART, the vehicle GPS module of main control MCU, is used for obtaining gps data.The vehicle GPS module by signal is directly sent into the serial ports UART of MCU by this serial port level chance-over circuit, after processing through main control MCU, shows the satellite positioning coordinate data by the LCD display in the human-computer interaction device.
As shown in Figure 2, be solidified with the uC/OS-II real-time oss UC/GUI general-purpose built-in type Development of Graphical Interfaces system that unifies in the main control MCU chip of the present utility model, realize monitoring and fault diagnosis.Can realize that SAE J1939 resolves task, GPS resolves task, touch-screen task and interface display task.Wherein the interface display task is used uC/GUI general-purpose built-in type Development of Graphical Interfaces system, is divided into that tables of data shows, single panel board shows, many panel boards show simultaneously, gps coordinate location map and interface etc. is set; Use the touch key-press of screen below to carry out interface switching.
The utility model links to each other with Engine ECU by the CAN bus, when the Engine ECU system normally moves, can receive state and failure message that Engine ECU sends over, after by SAE J1939X agreement state and fault information data being carried out demodulation, interpretation, statistics, corresponding engine state monitor and fault diagnosis data result are presented on the LCD display.LCD display can show engine parameter with the form of virtual meter panel and digital form, the form interface can show 12 data simultaneously, the multilist interface can show the variation of the panel board pointer of 4 parameters (page-turnable) simultaneously, and single surface and interface can show that the panel board pointer of single parameter (page-turnable) changes.The gps coordinate location map interface of LCD display can show satellite positioning coordinate figure, refreshes interface and time when receiving satellite-signal.
A kind of engine state monitor that the utility model provides and the function of fault diagnosis module comprise: can detect a plurality of parameters such as engine speed, oil pressure, oil temperature; Touch control saves complicated by key control, so that product appearance is simple and direct; The display interface variation has data form, panel board, gps coordinate location map etc.; Wherein gps coordinate location map display interface is applicable to the zone that satellite-signal can be received in the whole world.
The below only statement for by preferred embodiment main principle of the present utility model and spirit being carried out; be not limited to the utility model; for a person skilled in the art; the utility model can have various modifications and variations; all any modifications of within spirit of the present utility model and principle, doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. an engine state monitor and fault diagnosis module is characterized in that comprising main control MCU, human-computer interaction device, data communication equipment (DCE); Described main control MCU is the ARM microprocessor; Described data communication equipment (DCE) links to each other with main control MCU, and can be connected with Engine ECU, is used for obtaining engine condition and the failure message of Engine ECU; Described human-computer interaction device links to each other with main control MCU, is used for the input control parameter, and the main control MCU mode of operation is set, and shows engine state monitor and fault diagnosis data.
2. a kind of engine state monitor according to claim 1 and fault diagnosis module is characterized in that described human-computer interaction device is made of touch-screen driver element, touch-screen, LCD driver element, LCD display; Described LCD driver element links to each other with the variable static store controller FSMC of described ARM microprocessor; Described touch-screen driver element links to each other with the serial peripheral equipment interface SPI of described ARM microprocessor.
3. a kind of engine state monitor according to claim 1 and fault diagnosis module is characterized in that described data communication equipment (DCE) is the CAN transceiver; Described CAN transceiver links to each other respectively with the CAN controller of described main control MCU, the CAN bus of Engine ECU.
4. one of according to claim 1-3 described a kind of engine state monitor and fault diagnosis module is characterized in that also comprising serial port level chance-over circuit; Described serial port level chance-over circuit links to each other respectively with serial ports, the vehicle GPS module of described main control MCU, is used for obtaining gps data; Described human-computer interaction device can show the satellite positioning coordinate data.
5. one of according to claim 1-3 described a kind of engine state monitor and fault diagnosis module, the chip model that it is characterized in that described ARM microprocessor is STM32F103VET.
6. a kind of engine state monitor according to claim 2 and fault diagnosis module is characterized in that described LCD driver element is that the chip of SSD1963 consists of by model.
7. a kind of engine state monitor according to claim 2 and fault diagnosis module is characterized in that described touch-screen driver element is that the chip of ADS7843 consists of by model.
8. according to claim 3 described a kind of engine state monitor and fault diagnosis module is characterized in that described CAN transceiver is that the chip of CTM1050T consists of by model.
9. a kind of engine state monitor according to claim 4 and fault diagnosis module is characterized in that, the chip model of described ARM microprocessor is STM32F103VET; Described LCD driver element is that the chip of SSD1963 consists of by model; Described touch-screen driver element is that the chip of ADS7843 consists of by model; Described CAN transceiver is that the chip of CTM1050T consists of by model.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220433410 CN202836971U (en) | 2012-08-29 | 2012-08-29 | Engine state monitoring and fault diagnosis module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220433410 CN202836971U (en) | 2012-08-29 | 2012-08-29 | Engine state monitoring and fault diagnosis module |
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| CN202836971U true CN202836971U (en) | 2013-03-27 |
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| CN 201220433410 Expired - Fee Related CN202836971U (en) | 2012-08-29 | 2012-08-29 | Engine state monitoring and fault diagnosis module |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454947A (en) * | 2013-08-28 | 2013-12-18 | 深圳市元征科技股份有限公司 | Vehicle diagnosis code-reading device |
| CN103792087A (en) * | 2014-01-24 | 2014-05-14 | 西安航天动力试验技术研究所 | Parallel trial run fault monitoring and diagnosing method |
| CN105807751A (en) * | 2014-12-30 | 2016-07-27 | 博世汽车服务技术(苏州)有限公司 | Vehicle maintenance device |
| CN105955246A (en) * | 2016-06-17 | 2016-09-21 | 桂林金铭和智控科技有限公司 | Digital engine simulation system based on SAEJ1939 protocol |
| CN106017938A (en) * | 2016-07-11 | 2016-10-12 | 中国人民解放军装甲兵工程学院 | Engine test bench |
| CN106301522A (en) * | 2016-08-20 | 2017-01-04 | 航天恒星科技有限公司 | The Visual method of fault diagnosis of Remote Sensing Ground Station data receiver task and system |
| CN107421744A (en) * | 2016-05-24 | 2017-12-01 | 柳州正盛科技有限公司 | Engine thermal running-in test stand embedded controller |
| CN110333415A (en) * | 2019-08-05 | 2019-10-15 | 广汽菲亚特克莱斯勒汽车有限公司 | Motronic control maps static detection equipment and its electric-examination method |
-
2012
- 2012-08-29 CN CN 201220433410 patent/CN202836971U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454947A (en) * | 2013-08-28 | 2013-12-18 | 深圳市元征科技股份有限公司 | Vehicle diagnosis code-reading device |
| CN103792087A (en) * | 2014-01-24 | 2014-05-14 | 西安航天动力试验技术研究所 | Parallel trial run fault monitoring and diagnosing method |
| CN103792087B (en) * | 2014-01-24 | 2016-03-16 | 西安航天动力试验技术研究所 | Test run Fault monitoring and diagnosis method in parallel |
| CN105807751A (en) * | 2014-12-30 | 2016-07-27 | 博世汽车服务技术(苏州)有限公司 | Vehicle maintenance device |
| CN107421744A (en) * | 2016-05-24 | 2017-12-01 | 柳州正盛科技有限公司 | Engine thermal running-in test stand embedded controller |
| CN105955246A (en) * | 2016-06-17 | 2016-09-21 | 桂林金铭和智控科技有限公司 | Digital engine simulation system based on SAEJ1939 protocol |
| CN106017938A (en) * | 2016-07-11 | 2016-10-12 | 中国人民解放军装甲兵工程学院 | Engine test bench |
| CN106301522A (en) * | 2016-08-20 | 2017-01-04 | 航天恒星科技有限公司 | The Visual method of fault diagnosis of Remote Sensing Ground Station data receiver task and system |
| CN110333415A (en) * | 2019-08-05 | 2019-10-15 | 广汽菲亚特克莱斯勒汽车有限公司 | Motronic control maps static detection equipment and its electric-examination method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20140829 |
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| EXPY | Termination of patent right or utility model |