CN201638067U - Automobile CAN bus electronic control unit - Google Patents
Automobile CAN bus electronic control unit Download PDFInfo
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- CN201638067U CN201638067U CN2009200947379U CN200920094737U CN201638067U CN 201638067 U CN201638067 U CN 201638067U CN 2009200947379 U CN2009200947379 U CN 2009200947379U CN 200920094737 U CN200920094737 U CN 200920094737U CN 201638067 U CN201638067 U CN 201638067U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
An automobile CAN bus electronic control unit belongs to the field of automobile driving device combination control technology, is used for automobile electronic monitoring and information processing, and overcomes the defects of the existing product that the volume is large, the price is expensive, the mounting, debugging, and maintenance are inconvenient, the data is easily blocked and out of control, and so on. The device comprises a main control CAN net and five auxiliary control CAN nets, wherein the main control CAN net includes a gateway node and main nodes of the auxiliary control CAN nets; each auxiliary control CAN net includes a main node of the auxiliary control CAN net and a slave node thereof; a gateway processor passes through a CAN driver module and is connected with a main node processor of the auxiliary control CAN net through a CAN bus; and the main node processor of the auxiliary control CAN net passes through the CAN driver module and is connected with a slave node processor of the auxiliary control CAN net through the CAN bus. In the utility model, a two-stage CAN net structure and a three-stage data fusion treatment structure are adopted, and the functions of a controlled object is graded, so as to solve the data blocking phenomenon under the condition of a big data stream, and improve the real-time performance, validity, and reliability of the monitoring function.
Description
Technical field
The utility model belongs to automotive proplsion and jointly controls technology, is specifically related to a kind of automobile CAN-bus electronic-controlled installation.
Background technology
Along with the development of Hyundai Motor technology, the function of automobile increases gradually, and the automotive electronics supervisory system is more sophisticated also, and 80 electronic control units of as many as can be arranged on the modern luxurious vehicle.On the one hand, traditional electrical system mostly adopts point-to-point single communication mode, between each electrical system contact less, must cause huge wiring system like this, and be difficult to realize system information share and the synthesization of information is handled.On the other hand, monitoring function of every increase all will be set up corresponding man-to-man cable for new subsystem and connect, make distribution car body cable everywhere especially the leader cable bundle be tending towards huge, heavy and expensive, and and then cause the difficulty that designs, install, debug and safeguard.Therefore the structure of orthodox car electric control system has become the bottleneck that the restriction automobile function increases, performance improves and reduce integrated cost.
Along with the development of automobile bus technology be gradually improved, comprise that the bus form of CAN, 485, LIN etc. becomes the bus form of Auto Electronic Controlled System gradually, the CAN bus more with its higher data transfer rate, node articulates and remove the main flow form that easy, higher advantages such as communication reliability become Auto Electronic Controlled System.Though existing automobile CAN-bus electronic monitoring and control system can be mounted on each supervisory system on the bus with joint form, but fail perfect staging hierarchy and processed mechanism, flow under the bigger situation in data stream and control, easily cause consequences such as data obstruction and control fails, influence real-time, validity and the reliability of system.
Summary of the invention
The purpose of this utility model provides a kind of automobile CAN-bus electronic-controlled installation, be used to automotive electronics that high stable, highly reliable Electronic Control scheme are provided, realize intellectuality, lighting and the informationization of automotive electronics monitoring, it is complicated to overcome existing automotive electronics watch-dog wiring, be difficult for installing, debug and safeguard, and be easy to generate shortcomings such as data obstruction and control fails.
The technical solution adopted in the utility model is: make up master control CAN net and assist control CAN net according to power system, kinematic train, suspension, brake system and the security system of five automobile electrically-controlled big core application with Vehicle Electronic Control.In each core application system inside transducing signal collecting unit, control signal driver element, status signal display unit and functional mode being provided with the unit is connected master control CAN net or assists control CAN online by important level, constitute the sensor acquisition ring by CAN bus gateway, controlling and driving ring, state show that ring and pattern are provided with ring, realize high stable, highly reliable signal transport architecture.
The utility model is made up of master control CAN net and five big auxilliary control CAN nets; Master control CAN net is made up of gateway node and each auxilliary control CAN host node; Auxilliary control CAN net is made up of from node auxilliary control CAN host's node and auxilliary control CAN net.Gateway processor links to each other with auxilliary control CAN host modal processor via the CAN bus by the CAN driver module; Auxilliary control CAN host modal processor links to each other from modal processor with auxilliary control CAN net via the CAN bus by the CAN driver module.
Gateway node comprises gateway processor module, code memory, data-carrier store, numeric keypad module, LCD driver module, LCD display module, CAN driver module, power module.The gateway processor module is connected with the LCD display module by the LCD driver module; The numeric keypad module links to each other with gateway processor by the I/O mouth as input equipment; Code memory, data-carrier store are mounted on the system bus as memory device and link to each other with gateway processor; All module all is connected with the power supply module.
Auxilliary control CAN host node comprises auxilliary control CAN host processor module, code memory, data-carrier store, numeric keypad module, LCD driver module, LCD display module, CAN driver module, audio driven module, audio frequency output module, power module.Auxilliary control CAN host processor module is connected with the LCD display module by the LCD driver module; The numeric keypad module links to each other with gateway processor by the I/O mouth as input equipment; Code memory, data-carrier store are mounted on the system bus as memory device and link to each other with auxilliary control CAN host modal processor; All module all is connected with the power supply module.
Auxilliary control CAN net comprises that from node auxilliary control CAN net is from processor, CAN driver module, sensor assembly, sensor drive and interface module, device control module, device drives and interface module, peripheral controlled device, power module.Sensor assembly links to each other from processor with auxilliary control CAN net by sensor drive and interface module; Auxilliary control CAN net links to each other with peripheral controlled device by device control module, device drives and interface module from processor; Above-mentioned whole module all links to each other with power module.
Groundwork process of the present utility model is as follows:
(1) the classification processing procedure of data is: at first, the sensor assembly of auxilliary control CAN net from node gathered external analog information, and delivering to auxilliary control CAN net from processor by sensor drive and interface circuit, the latter handles according to set algorithm and generates first order data sheet file.This report file is sent to auxilliary control CAN host processor by auxilliary control CAN bus, and the latter processes and generate second level report file to it according to set algorithm once more.This report file is sent to gateway processor by master control CAN bus, the latter handles the back according to set algorithm to it and generates third level report file, after gateway processor carries out fusion treatment in conjunction with other data to it, by LCD display module output video information, perhaps export voice messaging by the audio frequency output module by the LCD driver module by the audio driven module.
(2) control procedure of peripherals is: gateway processor is assisted control CAN host processor transmitting control commands by master control CAN net to correspondence according to the numbering of control peripherals, after the latter receives this order, by decoding, correspondence in this auxilliary control CAN net from the processor transmitting control commands, auxilliary control CAN net passes through decoding from processor, by the final control command of device control module, device drives and interface module equipment transmission to the periphery.
The two-stage CAN web frame that the utility model adopts, three grades of data fusion treatment structures reach by the functional classification to the control object, have solved the data latch up phenomenon under the high amount of traffic situation, have improved real-time, validity and the reliability of monitoring function.
Description of drawings
Fig. 1 is the utility model CAN anastomose composition;
Fig. 2 is the utility model gateway node hardware connection layout;
Fig. 3 is the utility model gateway processor main program flow chart.
Embodiment
Consult Fig. 1, make up master control CAN net and assist control CAN net according to power system, kinematic train, suspension, brake system and the security system of five automobile electrically-controlled big core application with Vehicle Electronic Control.In each core application system inside transducing signal collecting unit, control signal driver element, status signal display unit and functional mode being provided with the unit is connected across master control CAN net or assists control CAN online by important level, constitute the sensor acquisition ring by CAN bus gateway, controlling and driving ring, state show that ring and pattern are provided with ring, realize high stable, highly reliable signal transport architecture.The master control CAN net that each core control system is formed is controlled the corresponding site that the CAN net is installed on automobile with assisting, the master controller of the master control CAN of each control system net links to each other by gateway, realizes the operations such as state demonstration, pattern setting, controlling and driving to the control information of automobile electric control system inside institute.
Consult Fig. 2, the gateway processor model is LPC2292; LCD display module model is LCD240128A; The Network Interface Module model is RTL8019AS; The code memory model is SSR39VF1601; The data-carrier store model is IS61LV25616AL; CAN driver module model is PCA82C250; The power module model is SPX1117.The annexation of each module is: the gateway flush bonding processor links to each other with the LCD display module by lcd controller; Code memory FLASH is mounted on the system bus as memory device with data-carrier store SDRAM and links to each other with the gateway flush bonding processor; The gateway flush bonding processor links to each other with the CAN bus network by the CAN modular converter; All modules all have with power module and are connected.
Consult Fig. 3, the gateway processes management the work of each auxilliary control CAN host processor in the master control CAN net, and the communication between each auxilliary control CAN net must be done uniform dispatching by gateway processor.After gateway processor startup work, earlier other auxilliary control CAN host processor sends information frame and detects their whether operate as normal in its network, if the information detection frame and the not response of auxilliary control CAN host processor that surpass certain hour or retransmitted certain number of times, then send warning message to the user, wait for the customer inspection processing by the LCD display module.When detecting auxilliary control CAN host processor and not having operate as normal, also send warning message to the user, wait for that customer inspection handles.
Claims (7)
1. automobile CAN-bus electronic-controlled installation is characterized in that: is made up of master control CAN net and five big auxilliary control CAN nets, master control CAN net is made up of gateway node and each auxilliary control CAN host node, and auxilliary control CAN net is by auxilliary control CAN host's node and assist and control the CAN net and form from node; Gateway processor links to each other with auxilliary control CAN host modal processor by the CAN bus, and auxilliary control CAN host modal processor links to each other from modal processor with auxilliary control CAN net by the CAN bus; Gateway node comprises gateway processor, code memory, data-carrier store, numeric keypad module, LCD driver module, LCD display module, CAN driver module, power module, its annexation is that the gateway processor module is connected with the LCD display module by the LCD driver module, the numeric keypad module links to each other with gateway processor by the I/O mouth as input equipment, code memory, data-carrier store are mounted on the system bus as memory device and link to each other with gateway processor, and all module all is connected with the power supply module; Auxilliary control CAN host node comprises auxilliary control CAN host processor module, code memory, data-carrier store, the numeric keypad module, the LCD driver module, the LCD display module, the CAN driver module, the audio driven module, the audio frequency output module, power module, their annexation is that auxilliary control CAN host processor module is connected with the LCD display module by the LCD driver module, the numeric keypad module links to each other with gateway processor by the I/O mouth as input equipment, code memory, data-carrier store is mounted on the system bus as memory device and links to each other with auxilliary control CAN host modal processor, and all module all is connected with the power supply module; Auxilliary control CAN net comprises that from node auxilliary control CAN net is from processor, CAN driver module, sensor assembly, sensor drive and interface module, device control module, device drives and interface module, peripheral controlled device, power module, annexation between them is that sensor assembly links to each other from processor with auxilliary control CAN net by sensor drive and interface module, auxilliary control CAN net links to each other with peripheral controlled device by device control module, device drives and interface module from processor, and all module all links to each other with power module.
2. automobile CAN-bus electronic-controlled installation according to claim 1 is characterized in that: gateway processor and auxilliary control CAN host processor are 16/32 ARM7TDMI-S microcontroller LPC2292.
3. automobile CAN-bus electronic-controlled installation according to claim 1 is characterized in that: described code memory and data-carrier store comprise the FLASH of storage code and the SDRAM of storage data.
4. automobile CAN-bus electronic-controlled installation according to claim 3 is characterized in that: described FLASH is SSR39VF1601.
5. automobile CAN-bus electronic-controlled installation according to claim 3 is characterized in that: described SDRAM is IS61LV25616AL.
6. according to the described automobile CAN-bus electronic-controlled installation of claim 1, it is characterized in that: described CAN driver module is PCA82C250.
7. according to the described automobile CAN-bus electronic-controlled installation of claim 1, it is characterized in that: described power module is SPX1117.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200947379U CN201638067U (en) | 2009-11-18 | 2009-11-18 | Automobile CAN bus electronic control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200947379U CN201638067U (en) | 2009-11-18 | 2009-11-18 | Automobile CAN bus electronic control unit |
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| Publication Number | Publication Date |
|---|---|
| CN201638067U true CN201638067U (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200947379U Expired - Lifetime CN201638067U (en) | 2009-11-18 | 2009-11-18 | Automobile CAN bus electronic control unit |
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| CN (1) | CN201638067U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063095B (en) * | 2009-11-18 | 2013-03-06 | 吉林大元电子科技有限公司 | CAN bus electronic control device for automobile |
| CN108920410A (en) * | 2018-06-22 | 2018-11-30 | 华北理工大学 | A kind of big data processing unit and method |
-
2009
- 2009-11-18 CN CN2009200947379U patent/CN201638067U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063095B (en) * | 2009-11-18 | 2013-03-06 | 吉林大元电子科技有限公司 | CAN bus electronic control device for automobile |
| CN108920410A (en) * | 2018-06-22 | 2018-11-30 | 华北理工大学 | A kind of big data processing unit and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101117 Effective date of abandoning: 20091118 |
|
| RGAV | Abandon patent right to avoid regrant |