CN102374934A - Motorcycle computer decoder - Google Patents
Motorcycle computer decoder Download PDFInfo
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- CN102374934A CN102374934A CN2010102478147A CN201010247814A CN102374934A CN 102374934 A CN102374934 A CN 102374934A CN 2010102478147 A CN2010102478147 A CN 2010102478147A CN 201010247814 A CN201010247814 A CN 201010247814A CN 102374934 A CN102374934 A CN 102374934A
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Abstract
The invention relates to a computer detection terminal for fault detection and maintenance of motorcycles. Hardware of the computer detection terminal is designed in a modularized structure and mainly consists of a power supply module, a communication interface, a display module, a standard serial port, a USB upgrading module and a storage module. The invention provides an intelligent detection scheme on the basis of the traditional motorcycle fault detection so as to realize automation and intellectualization of motorcycle fault detection, and the motorcycle fault detection efficiency and accuracy can be greatly improved after the intelligent detection scheme is popularized and used. After being connected with a motorcycle, the motorcycle decoder transmits a command request to a motorcycle computer; the motorcycle computer returns various data according to the request; the decoder analyzes the obtained data and respectively transmits the analyzed data to the storage module and the display module and gives a special remind for abnormal data. The invention comprises multiple patent technologies, such as self-learning judgment, warning color display and the like. Software upgrading can be carried out by a grid conveniently and rapidly and is compatible with continuous development of a new electric control system.
Description
Technical field
The present invention relates to a kind of computer demoder that can be used for various motorcycle fault diagnosises.
Background technology
Motorcycle engine is a typical comprehensive complication system, sees from structure, and it belongs to multilayer hierarchical structure by the Mechatronic Systems that each subsystem such as mechanical, electrical, liquid is formed; See that from fault characteristic it usually shows as the failure symptom complicacy, the causa relation complicacy between fault and the fault etc.Because the limitation of fault diagnosis technology and application, China's motorcycle manufacturing detects engine failure and also rests on the manual detection stage at present, mainly adopts ear to listen with hand and touches detection method and the means that wait backwardness.This mode not only efficient is low, can not satisfy modern big production demand, and because false retrieval, omission often appear in influence main, objective factor, the machine product quality is caused very big influence.Along with development of science and technology; Various new technologies, new material, new technology are maked rapid progress, are emerged in an endless stream; Constantly be applied on the modern motorcycle, cause modern motorcycle, proposed new requirement for modern motorcycle maintenance industry and numerous jockeys day by day to hi-techization, intelligent direction development.Particularly, must cause change bigger on motorcycle structure and the principle of work along with the progressively application of new and high technologies such as electronic fuel injection system (EFI), anti-blocking brake system (ABS), spark control computer, engine centralized management system, automated driving system, gps satellite navigational system.Obviously, traditional maintenance means can not meet the demands.
Summary of the invention
For overcoming the above-mentioned defective of existing traditional diagnosis method; The invention provides a kind of intelligentized motorcycle fault diagnosis computer demoder; This demoder not only can improve the efficient and the accuracy of diagnosis; But also can to the vehicle operating diagnosing malfunction, provide concrete fault data according to the running status code of vehicle electrically controlling system.
The present invention realizes that the technical scheme of above-mentioned purpose is: a kind of motorcycle computer demoder, comprise power module, with automobile communication interface module, display module, standard serial port module and memory module.The present invention is on traditional motorcycle fault detect basis; A kind of intelligentized detection scheme is provided; To realize robotization, the intellectuality of motorcycle fault detect, after promoting the use of, it can improve motorcycle efficiency of failure defection and accuracy widely, have great practical value.Said motorcycle computer demoder links to each other with motorcycle and carries out communication with the motorcycle computer, has non-fault and various operational factor to be shown to the user in motorcycle.Can also be connected with PC USB mouth simultaneously, carry out functions such as software upgrading.The said motorcycle computer demoder demoder that links to each other with motorcycle sends corresponding order according to corresponding protocol to the motorcycle computer, and the motorcycle computer then carries out the setting of self according to order or sends the various data of being asked to demoder.Demoder is handled resulting data and is delivered to memory module and display module respectively, and unusual data are shown with colored.The present invention has self-learning function and failure warning look Presentation Function; To normal vehicle; The data that draw like processor are then used the upper limit or the lower limit of measured data alternate standard data not in the normal data scope, when showing fault data, use eye-catching warning color to show to the fault vehicle.The user can link to each other demoder with PC, download up-to-date ROMPaq, to adapt to vehicle up-to-date on the market.
Description of drawings
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Fig. 1 is a structural representation of the present invention;
Fig. 2 is an inner core synoptic diagram of the present invention;
Fig. 3 is the synoptic diagram of a kind of use-pattern of the present invention.
Embodiment
The present invention includes power module, with automobile communication interface module, display module, standard serial port module and memory module.The said motorcycle computer demoder demoder that links to each other with motorcycle sends corresponding order according to corresponding protocol to the motorcycle computer, and the motorcycle computer then carries out the setting of self according to order or sends the various data of being asked to demoder.Demoder is handled resulting data and is delivered to memory module and display module respectively, and unusual data are shown with colored.The present invention has self-learning function and failure warning look Presentation Function; To normal vehicle; The data that draw like processor are then used the upper limit or the lower limit of measured data alternate standard data not in the normal data scope, when showing fault data, use eye-catching warning color to show to the fault vehicle.The user can link to each other demoder with PC, download up-to-date ROMPaq, to adapt to vehicle up-to-date on the market.
Said power module adopts advanced PWM technology, can be good at solving the power issue of wide power input, efficient output.The stability and the power supply reliability of product have necessary relation, if power work is unreliable, reliability of products is not just known where to begin.Because the instability of commercial vehicle power supply, so can not be careless to the power supply design.Generally all more than 14V, and when the storage battery power shortage, voltage can drop to 10V or lower to commercial vehicle at the voltage in when work, and because the moment several thousand of automotive ignition and even the instantaneous pressure of volts up to ten thousand, design all is a challenge to the product power supply.The DC/DC power module of product has adopted advanced PWM technology, has solved wide voltage input well, the power issue of efficient output.
Because the commercial vehicle brand is different, the production year, the diagnosis communication agreement of each automobile also was various for equal reason.See from the voltage that communication is adopted, have+5V ,+12V; Can be divided into positive logic and negative logic two states again from the logic state branch.Therefore various combinations below in communication, just having occurred:
+ 5V positive logic
+ 5V negative logic
+ 12V positive logic
+ 12V negative logic
+ 5V positive logic ,+12V positive logic
+ 5V positive logic ,+12V negative logic
+ 5V negative logic ,+12V positive logic
+ 5V negative logic ,+12V negative logic
Said communication interface module has utilized the programmable analog switch dexterously, and all logical combinations are all taken into account, no matter run into which kind of vehicle in the future, as long as through software programming, just can be combined into the logical combination that needs.
For making product carry out exchanges data, in product, increased standard RS-232 communication interface, so product can be connected with equipment such as PC easily with other equipment with standard RS-232 interface.
Said memory module is the core in this product design, and CPU adopts 8 single-chip microcomputers.Owing to need the display text content, product self must have Chinese character base; Simultaneously, because the communications protocol of different automobile types is different, detect all vehicles, software and Relational database are also very huge, and Chinese character base, data file and testing software add up, and total amount of data is well imagined.Consider the cost problem of product, in product design, adopted two types mass storage, a kind of is the NORFLASH storer, and another kind is a NAND FLASH storer.Have only 8 single-chip microcomputers of 16 for address wire, how efficiently reference address is the difficult point in the design considerably beyond the address space of 64KB.In design, adopt page management technology head it off well.Promptly cut apart jumbo storer, each piece addressing fully after feasible cutting apart, one of addressing is called one page (PAGE) so fully.Because each page or leaf addressing fully, every page of another specific address space (promptly in design, every page all has a unique chip selection signal) all again; Like this; Every page can addressing, and the also addressing fully of every page space address, thereby the addressing fully of whole memory chip.Adopted the paging addressing mode just, the address space of FLASH MEMORY has rationally been divided.
Enable nand gate Flash data storage device is that the ideal of vast capacity data storage is selected; The enable nand gate Flash memory device of Samsung company is the very high vast capacity data storage device of a cost performance, the current data storage that is widely used in USB flash disk, MP3 and digital camera.This device is made up of piece (block), and each piece has 32 pages, and every page has 528 bytes, and this 528 byte is divided into A, B, three districts of C.Addressing to each page need be seen three addresses off through the I/O mouth, through the address of seeing off indicate want addressing the page or leaf and the page or leaf designation area in a certain byte.For the control signal of this chip, produce through decoding and logical combination, for simplifying circuit, the size of dwindling PCB has adopted the CPLD (CPLD) of U.S. XILINX company in product.
The memory portion of total system also comprises other a part of content.Is if the program capacity surpasses 64K, how processor carried out because the addressable address space of single-chip microcomputer is 64K? Therefore in system design; Two RAM memory chips have been adopted; Wherein a slice is used as common data-carrier store, is used for save routine operation intermediate result and ephemeral data, and different roles is served as in a slice RAM timesharing in addition; At the beginning of system's operation, use, then serve as ROM again and use as common RAM.Promptly after system power-up, at first from FLASH MEMORY, program is loaded among the multiplexing RAM, behind the program loaded; Multiplexing RAM promptly serves as the ROM function; Like this, when needs moved other program, system only needed from FLASH MEMORY, to load other program again and gets final product.Adopt such structural design, also made things convenient for the software upgrading of product from now on, if adopt common E2PROM, the above function just has no idea to realize.
Exactly because in system design, used NOR FLASH MEMORY storage chip; This chip have single power supply power supply (+5V), can wipe by electricity, program voltage is an operating voltage; Data such as do not lose at advantage after system's power down; Think product scene and online upgrading provide maybe, in system design, also utilized the advantage function of this chip just, for product development provides great convenience.
Claims (11)
1.CPU main circuit, input circuit, memory device, vehicle communication interface, memory module and display; Said vehicle communication interface connects the bus of vehicle electrically controlling system; Said processor obtains the running status code of electric-control system through said vehicle communication interface, decodes the generating run status data according to corresponding communications protocol; And send memory module storage with said running state data one tunnel, the one tunnel send display to show.
2. automobile computer demoder as claimed in claim 1 is characterized in that having adopted the USB upgrade mode, has substituted previous serial ports upgrade mode, makes updating speed improve 1 times.
3. automobile computer demoder as claimed in claim 1 is characterized in that said memory module is provided with the measured data storehouse, is used to store the travel condition of vehicle data that said processor is sent here.
4. automobile computer demoder as claimed in claim 1; It is characterized in that said memory module is provided with standard database; Be used to store the upper and lower bound of the normal data of each running state parameter, said processor compares measured data after the travel condition of vehicle data that generate actual measurement with normal data corresponding in the standard database; When the be above standard data upper limit or be lower than under the normal data in limited time of measured data; Be judged as vehicle trouble, be judged as vehicle trouble after, said processor is taken as the variable that is used for data of description display format and/or Show Color in the display driver function fault displayed value of setting.
5. automobile computer demoder as claimed in claim 1; It is characterized in that said processor is for normal vehicle; With measured data with after data compare in the standard database; The upper limit of data or be lower than its lower limit in the database if measured data is above standard writes the address of the respective standard data upper limit in the standard database or lower limit with this measured data, substitutes the upper limit or the lower limit of existing standard data; When the upper limit of corresponding data in the standard database or lower limit vacancy, directly measured data is write the normal data upper limit or the LLA of standard database.
6. like claim 1,2,3 or 4 described automobile computer demoders, it is characterized in that said travel condition of vehicle code comprises automobile type identification code and travel condition of vehicle information code.
7. automobile computer demoder as claimed in claim 5 is characterized in that also being provided with serial line interface, and said serial line interface comprises standard RS-232 interface, and said vehicle communication interface adopts communication interface able to programme.
8. automobile computer demoder as claimed in claim 5 is characterized in that also being provided with serial line interface, and said serial line interface comprises standard RS-232 interface, and said vehicle communication interface is provided with the programmable analog switch.
9. automobile computer demoder as claimed in claim 5; It is characterized in that said processor comprises through the interconnective CPU of cpu bus, address latch, logic decoder, storage chip RAM1 and storage chip RAM2; Said RAM1 is common RAM, and said RAM2 is a multiplexer storage.
10. automobile computer demoder as claimed in claim 8; It is characterized in that said CPU adopts 51 series monolithics or adopts the AT89C52 chip; Said memory module comprises a NOR FLASH storer and a NAND FLASH storer, and said each storer is split into some pages or leaves of addressing fully.
11. automobile computer demoder as claimed in claim 9 is characterized in that it passes through standard RS-232 interface and is connected with PC, perhaps is connected with the PC that inserts Internet, and is provided with the power module that is used for to other part power supplies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102478147A CN102374934A (en) | 2010-08-06 | 2010-08-06 | Motorcycle computer decoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102478147A CN102374934A (en) | 2010-08-06 | 2010-08-06 | Motorcycle computer decoder |
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|---|---|
| CN102374934A true CN102374934A (en) | 2012-03-14 |
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| CN2010102478147A Pending CN102374934A (en) | 2010-08-06 | 2010-08-06 | Motorcycle computer decoder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102566476A (en) * | 2010-12-24 | 2012-07-11 | 北京金奔腾汽车科技有限公司 | Commercial vehicle computer decoder |
| CN103287400A (en) * | 2013-02-05 | 2013-09-11 | 深圳市元征科技股份有限公司 | Vehicle data diagnostic system and method |
| CN103970112A (en) * | 2013-01-29 | 2014-08-06 | 北京金奔腾汽车科技有限公司 | Automobile computer diagnostic instrument capable of automatically switching channel diagnosis |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4404639A (en) * | 1980-12-02 | 1983-09-13 | Chevron Research Company | Automotive diagnostic system |
| CN101434221A (en) * | 2007-11-13 | 2009-05-20 | 尤博科技株式会社 | Vehicle fault diagnosis equipment |
| CN101487768A (en) * | 2009-01-15 | 2009-07-22 | 天津市松正电动科技有限公司 | Automatic fault detection system and method for electric bicycle |
-
2010
- 2010-08-06 CN CN2010102478147A patent/CN102374934A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4404639A (en) * | 1980-12-02 | 1983-09-13 | Chevron Research Company | Automotive diagnostic system |
| CN101434221A (en) * | 2007-11-13 | 2009-05-20 | 尤博科技株式会社 | Vehicle fault diagnosis equipment |
| CN101487768A (en) * | 2009-01-15 | 2009-07-22 | 天津市松正电动科技有限公司 | Automatic fault detection system and method for electric bicycle |
Non-Patent Citations (1)
| Title |
|---|
| 吴玉香等: "基于PC机的汽车电控故障诊断系统设计", 《制造业自动化》, vol. 28, no. 12, 31 December 2006 (2006-12-31), pages 51 - 53 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102566476A (en) * | 2010-12-24 | 2012-07-11 | 北京金奔腾汽车科技有限公司 | Commercial vehicle computer decoder |
| CN103970112A (en) * | 2013-01-29 | 2014-08-06 | 北京金奔腾汽车科技有限公司 | Automobile computer diagnostic instrument capable of automatically switching channel diagnosis |
| CN103287400A (en) * | 2013-02-05 | 2013-09-11 | 深圳市元征科技股份有限公司 | Vehicle data diagnostic system and method |
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Application publication date: 20120314 |