CN2898773Y - Liquid-crystal assembled instrument of automobile - Google Patents

Liquid-crystal assembled instrument of automobile Download PDF

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Publication number
CN2898773Y
CN2898773Y CN 200620039857 CN200620039857U CN2898773Y CN 2898773 Y CN2898773 Y CN 2898773Y CN 200620039857 CN200620039857 CN 200620039857 CN 200620039857 U CN200620039857 U CN 200620039857U CN 2898773 Y CN2898773 Y CN 2898773Y
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CN
China
Prior art keywords
vehicle
computer
interface
truck
automobile
Prior art date
Application number
CN 200620039857
Other languages
Chinese (zh)
Inventor
万钢
沈勇
徐亿
施逸民
Original Assignee
上海燃料电池汽车动力系统有限公司
万钢
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 上海燃料电池汽车动力系统有限公司, 万钢 filed Critical 上海燃料电池汽车动力系统有限公司
Priority to CN 200620039857 priority Critical patent/CN2898773Y/en
Application granted granted Critical
Publication of CN2898773Y publication Critical patent/CN2898773Y/en

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Abstract

A liquid-crystal assembled instrument of automobile relates to the area of electronic techniques. This wide screen assembled instrument comprises a vehicle-carried computer, a vehicle controller and a liquid-crystal display, which is characterized in that the output of the vehicle controller is connected to the vehicle-carried computer by the vehicle data bus and used to collect the operation state data and the fault code in the automobile. The vehicle-carried computer is connected to the liquid-crystal display comprises an automobile instrument display module and an automobile operation state display module by the digital interface, which is used to display the automobile operation state and the interface of the liquid-crystal instrument. The output of a digital small keyboard is connected to the vehicle-carried computer and used to switch between the automobile liquid-crystal instrument display module and the automobile operation state display module. Because the liquid-crystal display employs the automobile liquid-crystal instrument display module and the automobile operation state display module, the system is defaulted as instrument module in startup, substituting the traditional electromechanical pointer automobile instrument.

Description

The combined instrument for vehicle device of full liquid crystal display
Technical field
The utility model relates to automotive electronic technology, particularly relates to a kind of combined instrument for vehicle technology of full liquid crystal display.
Background technology
Along with the development of infotech, automobile has stepped into electronization, informationization and network times.For meeting consumers' demand, each big automobile production manufacturer of the world develops in succession and is used to improve the Vehicle Electronic Control product of driving/take advantage of comfortableness in a large number, continuous development along with computer technology, the application of inter-vehicle information system also can realize, it expands to computer technology on the automobile, can become the important directions of Hyundai Motor informationization, electronization development for automobile provides the more information service.
Meanwhile, traditional electromechanical instrument panel is very restricted owing to its information shows, can not satisfy present driver and occupant requirement to information, need to adopt the multidate information terminal of enriching, have more dirigibility and extended capability more, thereby realize that the occupant exchanges with the extensive of car external information with Che Nei.Along with the maturation gradually of lcd technology, use liquid crystal instrument to replace the epoch of traditional electromechanical instrument to arrive gradually, now even but traditional big factory also just accomplishes to use liquid crystal panel to substitute a part of electromechanical appearance dash board now.And, when liquid crystal technology reaches the requirement of vehicle electronics, just can use LCD to substitute most electromechanical instrument by form now, this is also representing the development trend of automobile instrument in the future.How about but the liquid crystal display template that meets the automobile instrument size does not now almost have, and the cost of die sinking has too highly again, so use suitable liquid crystal display on automobile, this is the problem that needs solve.
The utility model content
At the defective that exists in the above-mentioned prior art, technical problem to be solved in the utility model provides the combined instrument for vehicle device of all multi-functional full liquid crystal displays such as a kind of diagnosis with vehicle interior multidate information, demonstration.
In order to solve the problems of the technologies described above, the combined instrument for vehicle device of a kind of full liquid crystal display provided by the utility model, comprise truck-mounted computer, vehicle control device and LCD, it is characterized in that, wherein the vehicle control device output terminal connects described truck-mounted computer through data bus of vehicle, is used to gather running state data and failure code in the car; Truck-mounted computer connects the LCD of being made up of liquid crystal instrument for automobile display module and motoring condition display module by digital interface, is used for the interface of display automobile running status and liquid crystal instrument; The output terminal of numeric keypad connects truck-mounted computer, is used to switch liquid crystal instrument for automobile display module and motoring condition display module; Because LCD used liquid crystal instrument for automobile display module and motoring condition display module, wherein be defaulted as the instrument module during system start-up, be used for substituting traditional electromechanical pointer automobile instrument.
Further, described truck-mounted computer connects touch-screen, the man-machine interface that realization can be mutual by four needle interfaces.
Further, the application software of described truck-mounted computer comprises main integrated interface program, automobile instrument software, vehicle-state indication software, GPS vehicle mounted positioning navigation software, vehicle-carried hands-free telephone software, overpass information service software, car fault diagnosis software, Internet-browser, multimedia software.
Further, described carried-on-vehicle computer system, have data-interface (CAN in the car, the lin bus) is connected CF card and SD card respectively with the embedded onboard computing machine (as instruction set chips such as ARM9) of other interface, car is received and sent messages outward and is connected the RS232 interface of hands-free phone and truck-mounted computer through wireless network communication module respectively, the outer voice signal of hands-free phone and car is through the audio input interface of MUX module input truck-mounted computer, the audio output interface of truck-mounted computer connects the sound system of vehicle, the RS232 interface of GPS received signal input truck-mounted computer, the USB interface of truck-mounted computer connects mouse through USB HUB, numeric keypad and peripheral memory (USB flash disk), the display interface of truck-mounted computer connects LCD, and data reception signal connects the SJA1000T controller of truck-mounted computer in the car through the in-vehicle network interface.
Utilize the combined instrument for vehicle device of the full liquid crystal display that the utility model provides, owing to use the TFT LCDs to substitute traditional mechanical formula, electronic instrument, solved the traditional mechanical formula, but electronic instrument display message amount is few, the problem that display interface is single, after adopting 800*480 or more high-resolution widescreen liquid crystal display, but the display message amount improves greatly.LCD is connected with truck-mounted computer by digital interface, is used for the interface of display automobile running status and liquid crystal instrument, and truck-mounted computer is connected with vehicle control device by data bus in the car, is used to gather running state data and failure code in the car; Because integrated liquid crystal instrument for automobile shows and motoring condition shows two modules, wherein be defaulted as the instrument module during system start-up, be used for alternative traditional electromechanical pointer automobile instrument; And running status is checked the switching between module and the vehicle-mounted liquid crystal instrument and can be used keypad to carry out; The words that need can also connect touch-screen by four needle interfaces, and the man-machine interface that realization can be mutual is compared the display mode of the unidirectional giving construction of conventional instrument.
Classificationization vehicle trouble intelligent diagnostics function, by analysis to car inner part service data, automatically carry out failure modes by system, by the corresponding failure information of storing in the retrieval remote server, show the fault explanation by display screen, relevant position in the car, relevant informations such as emergency treatment suggestion.The self-service maintenance program of the professional vehicle maintenance that matches in excellence or beauty is provided.The utility model can satisfy anti-electromagnetic interference (EMI), vibration and the working temperature environment requirement of defined in country and the automobile industry standard.The utlity model has stronger extendability, under WindowsCE OS, can and be used, with the expanding system function with the hardware and the softwarecompatible that may add in the future.
Description of drawings
Fig. 1 is the hardware structure diagram of the combined instrument for vehicle device of the utility model embodiment;
Fig. 2 is the composition frame chart of the software systems of the utility model embodiment;
Fig. 3 is the structured flowchart of the integrated interface program of the master of the utility model embodiment and each functional software;
Fig. 4 is the structured flowchart of the state indication software of the utility model embodiment;
Fig. 5 is the structured flowchart of the car fault diagnosis software of the utility model embodiment;
Fig. 6 is the carried-on-vehicle computer system hardware structure diagram of the utility model embodiment.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model is described in further detail, but present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof all should be listed protection domain of the present utility model in.
The combined instrument for vehicle device of the full liquid crystal display that the utility model embodiment is provided, as shown in Figure 1, comprise truck-mounted computer, vehicle control device and LCD, wherein the vehicle control device output terminal connects described truck-mounted computer through data bus of vehicle, is used to gather running state data and failure code in the car; Truck-mounted computer connects the LCD of being made up of liquid crystal instrument for automobile display unit and motoring condition display unit by digital interface, is used for the interface of display automobile running status and liquid crystal instrument; The output terminal of numeric keypad connects truck-mounted computer, is used to switch liquid crystal instrument for automobile display module and motoring condition display module; Because LCD used liquid crystal instrument for automobile display module and motoring condition display module, wherein be defaulted as the instrument module during system start-up, be used for substituting traditional electromechanical pointer automobile instrument; The words truck-mounted computer that needs can also connect touch-screen, the man-machine interface that realization can be mutual by four needle interfaces.General liquid crystal display is used in the demonstration aspect, and resolution generally was 800*480 in 16: 9, was 640*480 or 800*600 in 4: 3.Have 16: 9 highlighted, the wide temperature LCDs of embedded onboard computing machine (as instruction set chips such as ARM9) of the interior data-interface (CAN, lin bus) of car and other interface, operating system is used WindowsCE.net;
The composition of software systems:
As shown in Figure 2, software systems mainly are made up of operating system, hardware drive program and application software three parts.Operating system adopts Microsoft company to provide, and through the WindowsCE of secondary development 4.2 embedded multiple task operating systems, supports multiple hardwares equipment.Hardware drive program is provided by the hardware vendor.As shown in Figure 2, application software comprises main integrated interface program, automobile instrument software, vehicle-state indication software, GPS vehicle mounted positioning navigation software, vehicle-carried hands-free telephone software, overpass information service software, car fault diagnosis software, Internet-browser, multimedia software.
Main integrated interface program and each functional software:
The eMbedded Visual C++4.0 that main integrated interface and each functional software mainly use Microsoft company to provide writes.Use eMbedded Visual C++ can improve the portability of software, and better compatible to windows platform.
As shown in Figure 3, lead the operation that integrated interface program is mainly used in control and coordinates each functional software.Each button on the main integrated interface is all corresponding each functional software.After withdrawing from, each functional software all will return main integrated interface program.Each functional software is independent separately, all has data transmit-receive and processing and the display module of oneself.
1) automobile instrument software and vehicle-state indication software:
Automobile instrument software and vehicle-state indication software mainly links to each other with each main service data (speed of a motor vehicle, speed of a motor vehicle of acquisition vehicle with data bus in the vehicle control system by the serial line interface RS-232 on the truck-mounted computer, engine speed, oil mass, battery remaining power, gear, distance travelled etc.), show on LCD display by the mode of corresponding data conversion, for driver's reference with various instrument figures; Also can freely change background simultaneously according to user's needs.As shown in Figure 4, vehicle-state indication software comprises kinetic current data disaply moudle and current balance type data disaply moudle, and automotive interior bus data receiver module connects kinetic current data disaply moudle and current balance type data disaply moudle respectively.
Communications protocol between truck-mounted computer and vehicle control device: (automobile instrument software and vehicle-state indication software use identical communications protocol)
Port is provided with: baud rate is 38400bps, and data bit is 8, and position of rest is 1, no current control.
The every 100ms of vehicle control device sends 32 bytes to truck-mounted computer.
2) car fault diagnosis software:
This software is by vehicle-mounted data bus (CAN, Lin etc.), obtain the vehicle trouble data, after data analysis is handled, on LCDs, show failure message with patterned way, car fault diagnosis that is mainly used in and detection, and can roughly point out the position of guilty culprit and concise and to the point failure message, be convenient to the quick investigation and the maintenance of fault.
As shown in Figure 5, the structure of car fault diagnosis software can be divided into data conversion processing module, data transmit-receive module, data disaply moudle, service data memory module and configuration file read module.
Data transmit-receive module is divided into two submodules: CAN bus data receiver module and long distance wireless data communication module reach outer two the different networks of car respectively in the corresponding car.CAN bus data receiver module is mainly used in running status and the fault data that obtains vehicle in the car, the long distance wireless data communication module then connects Internet by GPRS or cdma wireless, data transmission in the treated car to remote server, or is obtained the vehicle historical data from remote server.Also can realize secondary development by remote server, to realize vehicle remote monitoring, services such as long-distance service to vehicle data.
Data conversion processing module major function is that state and the fault data bag that will receive from data bus of vehicle (CAN, Lin etc.) or remote server cooperates the configuration file that reads, and therefrom extracts correct state and fault data.And the data that will obtain at no distant date (2 ~ 10 minutes, specifically by flash memory size decision) deposit in the local DAT file (so that long-range connection when losing efficacy, can also obtain recent data in short-term) in by data memory module.Numbering (0 ~ 255 integer) is used in the failure message transmission, and promptly controller sends the fault numbering, and fault diagnosis software is received the failure code configuration file on the retrieve car borne computer of numbering back, obtains concrete failure code and failure message.
Configuration file is deposited in this locality with ini file, mainly comprises vehicle essential information (VIN sign indicating number, inner identifier etc.), failure code table, radio network configuration file (being used for the setting that wireless network connects concrete parameter).
Data disaply moudle is used for the demonstration of the various data that obtain from the data conversion processing module.Divide into four submodules, be respectively vehicle essential information display module, vehicle operation data and check that module, vehicle internal networks state show and the vehicle trouble information display module;
Vehicle essential information display module mainly shows the vehicle VIN sign indicating number in the vehicle essential information configuration file, the essential information of vehicles such as inner identifier;
Vehicle operation data checks that module mainly shows the current or history data of vehicle, comprises the speed of a motor vehicle, engine speed, accumulator voltage, oil mass etc.;
Vehicle internal networks state display module mainly shows the state of interior each major control of car and data bus;
The vehicle trouble information display module then is mainly the demonstration of approximate location on current failure code, the car, relevant drawing, fault synopsis, maintenance process suggestion etc.
The service data communications protocol is used identical communications protocol with automobile instrument software and state indication software between truck-mounted computer and vehicle control device.
Communication malfunction agreement between truck-mounted computer and vehicle control device:
The fault fault diagnosis is used the communication data packets of random length, and concrete length is determined by current number of faults N.
Data packet length=3 byte-header agreement+N byte intermediate protocol book+1 byte exclusive or check=N+4 byte;
Port is provided with: baud rate is 38400bps, and data bit is 8, and position of rest is 1, no current control.
The every 100ms of vehicle control device sends the fault data bag of N+4 byte to truck-mounted computer.
3) overpass information service software
The road shape that overpass information service software is used for the overhead road of ring in the city shows.So that the driver grasps the jam situation in the overhead road of interior ring at any time, better grasp traffic route.Reach the overhead situation of blocking up that reduces with it.
The ring road up and down that this software is overhead with interior ring, line is divided into 250 logical segments up and down, and each section is numbered, and condition of road surface is divided into three kinds: unimpeded, block up, close.Be stored in overpass information server on the Internet by the real-time situation of road conditions sensor with each highway section.
Overpass information service software on the truck-mounted computer is by the Internet interface in the car, be attached to the overpass information server, obtain the current overhead road condition data (reading once again) of server memory storage every 20 seconds, by map matching technology, the lines with green, red, black three kinds of colors (represent respectively unimpeded, block up, close) of each logical segment are shown on the electronic chart.
The concrete method of operation of system:
Vehicle control device on the vehicle sends to vehicle the data bus interface of native system in the concrete data of unit interval by data bus (CAN, Lin etc.);
System can analyze the data that comprise in the packet after acceptance;
The needs of each software module basis oneself use the data that send;
Liquid crystal instrument uses the data of vehicle operating to be shown;
State shows that the data of use vehicle-state are shown;
Fault diagnosis module uses all vehicle datas and failure code to be analyzed and make corresponding diagnosis;
The information that overhead information is sent the receiving remote server is shown overpass information;
Remote diagnosis can connect the data of remote server, can the auto-update software version and teledata call, problem feedback etc.,
Vehicle-carried hands-free telephone can automatically switch to telephone state when calling or dialling;
GPS is the GPS software and the GPS module of standard;
Server end deposits database in after having received the data that vehicle-mounted end sends, simultaneously the data of PC end request are sent to the PC end;
Server end also provides data to download by vehicle-mounted end simultaneously, commercial and the remote service after sale and the remote diagnosis of vehicle trouble;
PC end is being received from data in server in addition processes and displays and preservation.
The carried-on-vehicle computer system that the utility model embodiment is provided as shown in Figure 6, have data-interface (CAN in the car, the lin bus) is connected CF card and SD card respectively with the embedded onboard computing machine (as instruction set chips such as ARM9) of other interface, car is received and sent messages outward and is connected the RS232 interface of hands-free phone and truck-mounted computer through wireless network communication module respectively, the outer voice signal of hands-free phone and car is through the audio input interface of MUX module input truck-mounted computer, the audio output interface of truck-mounted computer connects the sound system of vehicle, the RS232 interface of GPS received signal input truck-mounted computer, the USB interface of truck-mounted computer connects mouse through USB HUB, numeric keypad and peripheral memory (USB flash disk), the display interface of truck-mounted computer connects LCD, and data reception signal connects the SJA1000T controller of truck-mounted computer in the car through the in-vehicle network interface.

Claims (3)

1, a kind of combined instrument for vehicle device of full liquid crystal display, comprise truck-mounted computer, vehicle control device and LCD, it is characterized in that wherein the vehicle control device output terminal connects described truck-mounted computer through data bus of vehicle, be used to gather running state data and failure code in the car; Truck-mounted computer connects the LCD of being made up of liquid crystal instrument for automobile display module and motoring condition display module by digital interface, is used for the interface of display automobile running status and liquid crystal instrument; The output terminal of numeric keypad connects truck-mounted computer, is used to switch liquid crystal instrument for automobile display module and motoring condition display module.
2, the combined instrument for vehicle device of full liquid crystal display according to claim 1 is characterized in that, described truck-mounted computer connects the touch-screen that can realize man-machine interface that can be mutual by four needle interfaces.
3, the combined instrument for vehicle device of full liquid crystal display according to claim 1, it is characterized in that, described carried-on-vehicle computer system, the embedded onboard computing machine that has the interior data-interface of car and other interface is connected CF card and SD card respectively, car is received and sent messages outward and is connected the RS232 interface of hands-free phone and truck-mounted computer through wireless network communication module respectively, the outer voice signal of hands-free phone and car is through the audio input interface of MUX module input truck-mounted computer, the audio output interface of truck-mounted computer connects the sound system of vehicle, the RS232 interface of GPS received signal input truck-mounted computer, the USB interface of truck-mounted computer connects mouse through USB HUB, numeric keypad and peripheral memory USB flash disk, the display interface of truck-mounted computer connects LCD, and data reception signal connects the SJA1000T controller of truck-mounted computer in the car through the in-vehicle network interface.
CN 200620039857 2006-03-01 2006-03-01 Liquid-crystal assembled instrument of automobile CN2898773Y (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101866176A (en) * 2010-06-29 2010-10-20 湖南开启时代电子信息技术有限公司 Vehicle-mounted management system of large surface mine mining and conveying vehicle
CN107554452A (en) * 2017-09-05 2018-01-09 深圳市路畅科技股份有限公司 A kind of system for realizing digital vehicle instrument and vehicle device interaction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101866176A (en) * 2010-06-29 2010-10-20 湖南开启时代电子信息技术有限公司 Vehicle-mounted management system of large surface mine mining and conveying vehicle
CN101866176B (en) * 2010-06-29 2013-03-27 湖南开启时代电子信息技术有限公司 Vehicle-mounted management system of large surface mine mining and conveying vehicle
CN107554452A (en) * 2017-09-05 2018-01-09 深圳市路畅科技股份有限公司 A kind of system for realizing digital vehicle instrument and vehicle device interaction

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