CN201075011Y - Whole electric intelligent instrument system of vehicle - Google Patents
Whole electric intelligent instrument system of vehicle Download PDFInfo
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- CN201075011Y CN201075011Y CNU2007200807764U CN200720080776U CN201075011Y CN 201075011 Y CN201075011 Y CN 201075011Y CN U2007200807764 U CNU2007200807764 U CN U2007200807764U CN 200720080776 U CN200720080776 U CN 200720080776U CN 201075011 Y CN201075011 Y CN 201075011Y
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Abstract
The utility model relates to an automobile instrument, in particular to the automobile instrument which adopts an embedded single chip microcomputer, a liquid crystal display and has intelligent function. The utility model adopts an advanced power autonomous control, a backup battery system, an energy control strategy, a high-speed multifunctional CPU, the liquid crystal display, a real-time clock, environmental temperature detection, a fuzzy data coupling technology and a CAN bus, so as to develop a full-electronic intelligent instrument system with the high reliability and long service life. The system can provide more information and strong expansion, and further uses the CAN bus to transfer signals and data, so as to reduce the wiring of the whole automobile.
Description
Technical field
The utility model relates to a kind of automobile instrument, the intelligent instrument system of particularly a kind of automotive electronics.
Background technology
Automobile instrument is the important device of indicating vehicle behavior information, helping driver safety, rationally driving a car.Traditional automobile instrument all adopts mechanical indicator indicating value mode, but because the vehicle behavior complexity, because vibration causes the ambiguity of pointer shake will causing reading; And all there are many defectives in the reliability of mechanical hook-up, life-span etc.; The mechanical type speed of a motor vehicle particularly commonly used detects, and the flexible axle fault frequently causes indicating malfunctioning.In addition, present automobile combination meter can only show the operational factor that vehicle is basic, can't monitor the running status of automobile, can't further analyze these parameters, so that judge the running status of automobile.
Open source literature has been reported the research of some automotive electronics instrument at present, the proposition that has utilizes singlechip technology and VFD display device to constitute the method for automotive electronics intelligence instrument, instrument is core with the one chip microcomputer, have real-time demonstration and preserve vehicle condition parameters such as the speed of a motor vehicle, engine speed, water temperature, oil level, total kilometrage, sub-mileage, make automobile have " black box " function; The employing CAN bussing technique that has in conjunction with singlechip technology, improves automobile instrument.For example: the Wang Junbo of East China Institute Of Technology's electronics and School of Mechanical Engineering, Zou Jijun etc. have studied usb bus and CAN bus protocol converter design in " East China Institute Of Technology's journal " the 3rd phase in 2006, point out that fieldbus (Field bus) is with the field controller of bottom in the automatic control system and the real-time control communication network of field intelligent instrument apparatus interconnection, be 5C (Computer, Control, Communication, CRT, Change) product that combines of technology.CAN (Control Area Network) bus is a kind of of fieldbus, is widely used in fields such as automobile industry, mechanical industry, household electrical appliance, sensor, has formed international standard, is putative several one of the most promising fieldbus.A kind of scheme of communicating by letter between CAN Bus and the computing machine (server) of realizing by the computing machine USB interface has been proposed.Specifically introduce the hardware circuit design method of using usb bus interface chip CH372 and independent CAN controller SJA1000 to realize, the write method of local side software, provided the flow process of main program module; The Chen Xiaozhong of Jiangsu University's automobile and traffic engineering institute has proposed a kind of based on the design philosophy CAN bus, realize automobile instrument with software.This automobile instrument is finished the demonstration of data in LCDs with software, makes full use of the advantage of automobile bus, with the data of CAN bus transfer from each sensor acquisition, is convenient to be connected with other control modules, can realize the upgrading expansion of automobile instrument at any time.This test macro is made up of LCD, PC-CAN interface card, single-chip microcomputer, CAN controller (SJA1000), CAN bus transmission/reception driver (PCA82C250) and each data acquisition system (DAS).The PC-CAN interface card is selected CAN232 intelligent CAN interface card for use, and it is fit to the low discharge data transmission applications of CAN-bus, reaches as high as the message transmission rate of 500 frame/seconds, and extensive and powerful software support is provided.Be supported under the development environments such as VC++, C++Builder, Delphi and VB and design; This research has only a CAN node, so the shown data of display have only rotating speed, engine oil pressure, water temperature, fuel consume (doctor's research paper); Li Wei, Hong Yunfu, Sheng Yizhi have studied the application of CAN bussing technique in certain automobile instrument system that is central controller with 16 single-chip microcomputer MC9S12 of Motorola in the article that the internet is delivered, and to this system global structure and wherein the design of hardware and software of CAN communication module done detailed description.
But the stability of the computing machine that the automotive electronics instrument of open source literature introduction is at present used or the speed of single-chip microcomputer do not reach the automobile requirement, also few to vehicle behavior information and intelligent functions, control hundred kilometers fuel consumes of intellectuality, driving etc. as warning system intellectuality, light, particularly the extendibility function is also few.
Summary of the invention
For the deficiency that the existing automobile instrument system that overcomes as stated in the Background Art exists, the utility model provides a kind of automobile instrument control system that adopts embedded scm, liquid crystal display, has intelligent functions.
The technical scheme that its technical matters that solves the utility model adopts is:
The intelligent instrument system of this automobile full-electronic, comprise power supply, display, single-chip microcomputer, the CAN controller, the CAN bus sends and receives driver and supervisory system, be characterized in: system adopts the embedded system controller, have multi-channel A and multichannel CAN bus controller simultaneously, power supply is equipped with Autonomous Control and energy consumption monitoring system, the CAN bus controller embeds the ARM microprocessor system of fuzzy data coupling technique, the CAN controller is an integrated multipath CAN bus controller, power supply and energy consumption monitoring system receive the ARM system, ARM system leading portion has keyboard and detection module input, ARM system back segment connects LCD output and CAN bus, and the CAN bus is received tire respectively, engine, water tank, fuel tank, the sensor of accumulator and car light; And there is circuit to take back speedometer, mileometer, engine speed indicator, water-thermometer, fuel gauge, voltage table, reometer and car light and detection module.
Above-described automotive electronics instrument system, speedometer adopts the disk digital figure display that meets driving habits, and environment temperature, water temperature, amount of fuel, battery tension adopt bar shaped cursor display, and mileage, stroke adopt digital indicator.
Above-described automotive electronics instrument system, system has used power supply Autonomous Control function and energy control strategy, power unit adopts the module of Autonomous Control, multiple-stage filtering and functions such as multistage voltage stabilizing, energy control, also be equipped with can reduce automotive ignition and charging to backup battery, the energy control strategy of the interference of system in good time close idle module, like this can energy savings, system has used an independently chip of monitoring power supply system, so that restart system automatically when power supply disturbs.
Above-described automotive electronics instrument system, system are equipped with the light self-actuated controller according to the running environment situation.
Above-described automotive electronics instrument system, system be equipped with can detection system ruuning situation the self-checking function switch and the alarm of abnormality sound and demonstration.
Above-described automotive electronics instrument system, system are equipped with the numeral that can detect and show hundred kilometers fuel consumes the when driver drives a car and show.
Below provide the 26S Proteasome Structure and Function that operation of the present utility model and each parts adopt:
1. power initiation and closing: power initiation and close control signal control by user's key.
2. power supply Autonomous Control: the work of system and not exclusively by user's key control signal control, but independently choose control with system.That introduces that the Autonomous Control function is system closes the realization system controllability and measurability, guarantees effective storage of system data.Autonomous Control is only used in core CPU, and display system does not need this function.
3. multiple-stage filtering and multistage voltage stabilizing: the electronic environment very severe of automobile, in order to guarantee the steady operation of system, power-supply system has been used multistage filtering and voltage stabilizing, prevents the interference of strong ripple multisystem and guarantees that the voltage of core system is stable.
4. battery backup system: because " the pool effect " of battery, battery backup system has at first realized a powerful filtering voltage regulation system, uses this system can reduce automotive ignition and the charging interference to system simultaneously.
5. energy control: energy control strategy is in good time closes idle module, energy savings.
6. Power Supply Monitoring: system has used an independently chip monitoring power supply system, so as when power supply to be unstable shutdown system, the operation of the stable back of power supply automatic recovery system.
7.CPU: system adopts the military project level embedded system controller of Philips.Chip is based on 32 bit CPUs of ARM7TDMI-S, and has the Flash of 256kB and the RAM of 16kB.Have multi-channel A and multichannel CAN control bus controller.This CPU has good stability and anti-interference, can reach the requirement of automobile control fully-40 ℃～+ 125 ℃ work down.
8. travelling speed: Cpu uses the crystal oscillator of 11.0592MHz, can accelerate to the speed near 60M, and ARM series controller is the instruction pipeline system of risc architecture simultaneously, so instruction execution speed is substantially near the travelling speed of clock.
9. the IO of system: the controller that system uses has 144 pins, have multiple serial flexibly, parallel communication bus for storage, demonstration, communication, detection use, having more than 70 common IO uses for input, function control, also have general AD interface, CAN bus interface etc., applicability is very wide.
10. show: system has used general LCD MODULE, this liquid crystal can not only provide the display interface of high brightness, also can be fast for system shows the speed of a motor vehicle, engine speed, oil mass, water temperature, time, environment temperature, cell voltage, discharges and recharges, system state, headlight, steering indicating light etc.
11. clock: system has used real-time clock, for the user shows the current time.
12. environment temperature: system has used the temperature detection chip of an I2C bus, the temperature of the detection current environment of real-time high-precision.
13.CAN bus: the chip that system uses has the can controller.The CAN module provides the unified signal of standard, data transmission for the door detection grade of system.
14. System self-test, maintenance: system maintaining module provides operations such as self check, maintenance for system.
15. fuzzy data coupling technique: system handles The data fuzzy data coupling technique.
The utility model has the advantages that:
1. the utility model and open source literature compare, and its technical characterstic is: instrument system integrated application ARM technology and CAN bussing technique, hardware as central controller, adopt the CAN bussing technique with embedded system simultaneously; Have to encrypt and rewrite function and have status detection function with anti-; Power-supply system adopts Autonomous Control, function such as multiple-stage filtering, multistage voltage stabilizing, energy control and power supply control and can reduce automotive ignition and charging to the battery backup system of the interference of system.Develop full-electronic full automatic vehicle work information display system owing to used modern digital signal detection technique, microelectric technique and computer technology, overcome many defectives of traditional automobile instrument system, improved the reliability of vehicle behavior information indication.Secondly, utilize the strong functions of microprocessor, abundanter vehicle behavior information and intelligent functions can be provided, control hundred kilometers fuel consumes of intellectuality, driving etc. as warning system intellectuality, light, and have very strong expandability, can continuous as required extended function.Therefore the utility model is to improving the automobile instrument system intelligent level, further improving vehicle behavior information display system integrated intelligentization, help the safer reasonably driving of driver, driving safety, raising China's automotive electronic technology level and the product level that improves automobile had facilitation.
2. system uses full-electronic to constitute, and has reliability height, long characteristics of life-span, and more information can be provided, and extendability is strong.
3. use CAN bus transfer signal, data, reduced the car load wiring.
Description of drawings
The intelligent instrument system hardware block diagram of Fig. 1 automobile full-electronic.
Fig. 2 instrument main circuit electrical schematic diagram.
The intelligent instrument system system monitoring of Fig. 3 automobile full-electronic block diagram.
The intelligent instrument system water temperature of Fig. 4 automobile full-electronic detects block diagram.
The intelligent instrument system oil mass of Fig. 5 automobile full-electronic detects block diagram.
The intelligent instrument system rotating speed of Fig. 6 automobile full-electronic detection block.
Embodiment
As shown in Figure 1, the intelligent instrument system CAN bus controller of full-electronic of the present utility model embeds the ARM microprocessor system of fuzzy data coupling technique, the CAN controller is a multichannel CAN bus controller, the ARM system is received in the power supply input, ARM system leading portion has keyboard and detection module input, and the back segment output of ARM system connects LCD and CAN bus.
As shown in Figure 2, the intelligent instrument system of full-electronic of the present utility model mainly is made up of six modules: CPU module (CPU.SCH), LCD MODULE (LCD.SCH), power module (PWR.SCH), key-press module (KEBOARD.SCH), CAN bus interface module (CAN.SCH) and detection module (CHK.SCH).Among the figure, the connection between the rhomboid symbolic representation module will link together when promptly the line of same names is marked on PROTEL design pcb map in the disparate modules; Six corresponding six circuit theory diagrams of module with the PROTEL design.
As shown in Figure 3, the CAN bus is received tire, engine, water tank, fuel tank, accumulator and car light respectively; And there is circuit to take back speedometer, mileometer, engine speed indicator, water-thermometer, fuel gauge, voltage table, voltage table and car light and detection module.Can carry out data processing and monitoring to the situation of engine failure, engine oil pressure, brake fluid, accumulator; And the device that receives the report for police service is made safety instruction.
As shown in Figure 4, if when native system is controlled water temperature, the CAN bus has circuit to receive in the water tank, by sensor water tank temperature is detected, and returned data, water receiving temperature display and alarm are made safety instruction.
As shown in Figure 5, if when native system is controlled oily temperature, the CAN bus has circuit to receive in the fuel tank, and to the fuel tank temperature detection, returned data connects oily temperature display and alarm and makes safety instruction by sensor.
As shown in Figure 6, if when native system is controlled the speed of a motor vehicle, the CAN bus has circuit to receive in the wheel, by sensor speed is detected, and returned data connects speed of a motor vehicle display and alarm and makes safety instruction.
Claims (6)
1. intelligent instrument system of automobile full-electronic, comprise power supply, display, interface card, single-chip microcomputer, the CAN controller, the CAN bus sends and receives driver and supervisory system, be characterized in: system adopts the embedded system controller, have multi-channel A and multichannel CAN bus controller simultaneously, power supply is equipped with Autonomous Control and energy consumption monitoring system, the CAN bus controller embeds the ARM microprocessor system of fuzzy data coupling technique, the CAN controller is a multichannel CAN bus controller, power supply and energy consumption monitoring system receive the ARM system, ARM system leading portion has keyboard and detection module input, ARM system back segment connects LCD output and CAN bus, and the CAN bus is received tire respectively, engine, water tank, fuel tank, accumulator and car light; There is circuit to take back speedometer, mileometer, engine speed indicator, water-thermometer, fuel gauge, voltage table, reometer and detection module from the sensor of tire, engine, water tank, fuel tank, accumulator and car light.
2. the automotive electronics instrument system that requires according to right 1, it is characterized in that: speedometer adopts the disk digital indicator that meets driving habits, environment temperature, water temperature, amount of fuel, electric current, battery tension adopt bar shaped cursor display, and mileage, stroke adopt digital indicator.
3. the automotive electronics instrument system that requires according to right 1, it is characterized in that: power unit adopts the module of functions such as Autonomous Control, multiple-stage filtering and multistage voltage stabilizing, energy control, power supply control, and be equipped with can reduce automotive ignition and charging to backup battery, the energy control strategy of the interference of system in good time close idle module, an independently monitoring power supply system also is installed, can restarts the chip of system automatically.
4. according to the automotive electronics instrument system of right 1 requirement, it is characterized in that: system is equipped with the light self-actuated controller according to the running environment situation.
5. the automotive electronics instrument system that requires according to right 1 is characterized in that: system be equipped with can detection system ruuning situation the self-checking function switch and the alarm of abnormality sound and demonstration.
6. according to the automotive electronics instrument system of right 1 requirement, it is characterized in that: system is equipped with the numeral that can detect and show hundred kilometers fuel consumes the when driver drives a car and shows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200807764U CN201075011Y (en) | 2007-08-18 | 2007-08-18 | Whole electric intelligent instrument system of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200807764U CN201075011Y (en) | 2007-08-18 | 2007-08-18 | Whole electric intelligent instrument system of vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN201075011Y true CN201075011Y (en) | 2008-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200807764U Expired - Fee Related CN201075011Y (en) | 2007-08-18 | 2007-08-18 | Whole electric intelligent instrument system of vehicle |
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| CN (1) | CN201075011Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813940A (en) * | 2010-03-30 | 2010-08-25 | 广州大华德盛科技有限公司 | Man-machine interactive system of thermal management system and control method thereof |
| CN102410853A (en) * | 2011-10-22 | 2012-04-11 | 成都市翻鑫家科技有限公司 | Liquid crystal instrument for vehicle |
| CN102529722A (en) * | 2011-12-30 | 2012-07-04 | 中科方德软件有限公司 | Integrated digital vehicle instrument |
| CN103713906A (en) * | 2014-01-09 | 2014-04-09 | 上汽通用五菱汽车股份有限公司 | Intelligent instrument development platform and method |
-
2007
- 2007-08-18 CN CNU2007200807764U patent/CN201075011Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813940A (en) * | 2010-03-30 | 2010-08-25 | 广州大华德盛科技有限公司 | Man-machine interactive system of thermal management system and control method thereof |
| CN101813940B (en) * | 2010-03-30 | 2013-06-12 | 广州大华德盛热管理科技有限公司 | Man-machine interactive system of thermal management system and control method thereof |
| CN102410853A (en) * | 2011-10-22 | 2012-04-11 | 成都市翻鑫家科技有限公司 | Liquid crystal instrument for vehicle |
| CN102529722A (en) * | 2011-12-30 | 2012-07-04 | 中科方德软件有限公司 | Integrated digital vehicle instrument |
| CN102529722B (en) * | 2011-12-30 | 2015-05-20 | 中科方德软件有限公司 | Integrated digital vehicle instrument |
| CN103713906A (en) * | 2014-01-09 | 2014-04-09 | 上汽通用五菱汽车股份有限公司 | Intelligent instrument development platform and method |
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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: 20080618 Termination date: 20100818 |