CN102063095B - CAN bus electronic control device for automobile - Google Patents
CAN bus electronic control device for automobile Download PDFInfo
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- CN102063095B CN102063095B CN2009102178718A CN200910217871A CN102063095B CN 102063095 B CN102063095 B CN 102063095B CN 2009102178718 A CN2009102178718 A CN 2009102178718A CN 200910217871 A CN200910217871 A CN 200910217871A CN 102063095 B CN102063095 B CN 102063095B
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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
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- 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]
Abstract
The invention discloses a controller area network (CAN) bus electronic control device for an automobile, which belongs to the technology of automobile drive device combination control, is used for automobile electronic monitoring and information processing, and overcomes the defects that a conventional product is huge, expensive, and inconvenient to install, debug and maintain, and the data is easy to block, out of control and the like. The CAN bus electronic control device for the automobile consists of a master control CAN network and five auxiliary control networks, wherein the master control CAN network consists of a gateway node and master nodes of each auxiliary control CAN network; and each auxiliary control CAN network consists of the master modes of each auxiliary control CAN network and slave nodes of each auxiliary control CAN network. A gateway processer is connected with master node processors of each auxiliary control CAN network by a CAN bus through a CAN drive module; and the master node processors of each auxiliary control CAN network are connected with slave node processors of each auxiliary control CAN network by the CAN bus through the CAN drive module. By adopting a two-stage CAN network structure and a three-stage data fusion processing structure, and grading a controlled object, the problem of data block in the situation of high data flow is solved, and the real-time performance, the effectiveness and the reliability of a monitoring function are improved.
Description
Technical field
The invention belongs to automotive proplsion and jointly control technology, be specifically related to a kind of CAN bus electronic control device for automobile.
Background technology
Along with the development of Hyundai Motor technology, the function of automobile increases gradually, and the automotive electronics supervisory control 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 processed.On the other hand, monitoring function of every increase all will be set up corresponding man-to-man cable for new subsystem and connect, so that 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 message transmission rate, node articulates and remove the main flow form that easy, the 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 control system on the bus with joint form, but fail perfect staging hierarchy and processed mechanism, in the situation that data flow and control stream are larger, easily cause data to stop up and control the consequences such as inefficacy, affect real-time, the validity and reliability of system.
Summary of the invention
The purpose of this invention is to provide a kind of CAN bus electronic control device for automobile, 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, overcome existing automotive electronics watch-dog wiring complicated, be difficult for installing, debug and safeguard, and easily produce the shortcomings such as data obstruction and control inefficacy.
The technical solution used in the present invention is: according to dynamical system, drive system, suspension, braking system and safety system structure master control CAN net and the auxiliary control CAN net of five automobile electrically-controlled large 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 setting unit are connected to master control CAN net by important level or auxiliary control CAN is online, consist of transducer collection ring by CAN bus gateway, control driving ring, state show that ring and pattern arrange ring, realize high stable, highly reliable signal transport architecture.
The present invention is comprised of master control CAN net and five large auxiliary control CAN nets; Master control CAN net is comprised of gateway node and each auxiliary control CAN host node; Auxiliary control CAN net is comprised of from node auxiliary control CAN host node and auxiliary control CAN net.Gateway processor links to each other with auxiliary control CAN host processor via the CAN bus by the CAN driver module; Auxiliary control CAN host processor links to each other from processor with auxiliary control CAN net via the CAN bus by the CAN driver module.
Gateway node comprises gateway processor module, code memory, data storage, 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 storage 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.
Auxiliary control CAN host node comprises auxiliary control CAN host processor module, code memory, data storage, numeric keypad module, LCD driver module, LCD display module, CAN driver module, audio driven module, audio frequency output module, power module.Auxiliary 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 auxiliary control CAN host processor by the I/O mouth as input equipment; Code memory, data storage are mounted on the system bus as memory device and link to each other with auxiliary control CAN host modal processor; All module all is connected with the power supply module.
Auxiliary control CAN net comprises that from node auxiliary control CAN net is from processor, CAN driver module, sensor assembly, transducer driving 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 auxiliary control CAN net by transducer driving and interface module; Auxiliary 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.
Main working process of the present invention is as follows:
(1) the classification processing procedure of data is: at first, the sensor assembly of auxiliary control CAN net from node gathers external analog information, and drive and interface circuit is delivered to auxiliary control CAN net from processor by transducer, the latter processes according to set algorithm and generates first order data sheet file.This report file is sent to auxiliary control CAN host processor by auxiliary control CAN bus, and the latter processes and generate second level report file to it according to set algorithm again.This report file is sent to gateway processor by master control CAN bus, the latter generates third level report file after according to set algorithm it being processed, 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 driven module by the audio frequency output module by the LCD driver module.
(2) control procedure of ancillary equipment is: gateway processor sends control command by master control CAN net to corresponding auxiliary control CAN host processor according to the numbering of control ancillary equipment, after the latter receives this order, by decoding, correspondingly in this auxiliary control CAN net send control command from processor, auxiliary control CAN net passes through decoding from processor, by the final control command of to the periphery equipment transmission of device control module, device drives and interface module.
The two-stage CAN web frame that the present invention adopts, three DBMS fusion treatment structures reach by the functional classification to the control object, have solved the data clogging in the high amount of traffic situation, have improved real-time, the validity and reliability of monitoring function.
Description of drawings
Fig. 1 is CAN anastomose composition of the present invention;
Fig. 2 is gateway node hardware connection layout of the present invention;
Fig. 3 is gateway processor main program flow chart of the present invention.
Embodiment
Consult Fig. 1, according to dynamical system, drive system, suspension, braking system and safety system structure master control CAN net and the auxiliary control CAN net of five automobile electrically-controlled large 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 setting unit are connected across master control CAN net by important level or auxiliary control CAN is online, consist of transducer collection ring by CAN bus gateway, control driving ring, state show that ring and pattern arrange ring, realize high stable, highly reliable signal transport architecture.The corresponding site that the master control CAN net that each core control system is formed and auxiliary control CAN net are installed on automobile, the master controller of the master control CAN of each control system net links to each other by gateway, realize to the control information of automobile electric control system inside institute state demonstrations, pattern setting, control the operation such as driving.
Consult Fig. 2, gateway processor and auxiliary control CAN host processor are 16/32 ARM7TDMI-S microcontroller LPC2292; LCD display module model is LCD240128A; The Network Interface Module model is RTL8019AS; The code memory model is SSR39VF1601; The data storage 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 storage 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 auxiliary control CAN host processor in the master control CAN net, and the communication between each auxiliary control CAN net must be done United Dispatching by gateway processor.After gateway processor startup work, first whether other auxiliary control CAN host processor sends information frame and detects them and work in its network, if the information that surpasses certain hour or retransmitted certain number of times detects frame and the not response of auxiliary control CAN host processor, then send warning message by the LCD display module to the user, wait for that the user checks processing.When detecting auxiliary control CAN host processor and not working, also send warning message to the user, wait for that the user checks processing.
Claims (7)
1. CAN bus electronic control device for automobile is characterized in that: be comprised of master control CAN net and five large auxiliary control CAN nets, master control CAN net is comprised of gateway node and each auxiliary control CAN host node, and auxiliary control CAN net is comprised of from node auxiliary control CAN host node and auxiliary control CAN net; Gateway processor links to each other with auxiliary control CAN host processor by the CAN bus, and auxiliary control CAN host processor links to each other from processor with auxiliary control CAN net by the CAN bus; Gateway node comprises gateway processor module, code memory, data storage, 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 storage 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; Auxiliary control CAN host node comprises auxiliary control CAN host processor module, code memory, data storage, 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 auxiliary 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 auxiliary control CAN host processor by the I/O mouth as input equipment, code memory, data storage is mounted on the system bus as memory device and links to each other with auxiliary control CAN host processor, and all module all is connected with the power supply module; Auxiliary control CAN net comprises that from node auxiliary control CAN net is from processor, CAN driver module, sensor assembly, transducer driving 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 auxiliary control CAN net by transducer driving and interface module, auxiliary 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. CAN bus electronic control device for automobile according to claim 1, it is characterized in that: gateway processor and auxiliary control CAN host processor are 16/32 ARM7TDMI-S microcontroller LPC2292.
3. CAN bus electronic control device for automobile according to claim 1, it is characterized in that: described code memory is that FLASH, data storage are SDRAM.
4. CAN bus electronic control device for automobile according to claim 3, it is characterized in that: described FLASH is SSR39VF1601.
5. CAN bus electronic control device for automobile according to claim 3, it is characterized in that: described SDRAM is IS61LV25616AL.
6. CAN bus electronic control device for automobile according to claim 1, it is characterized in that: described power module is SPX1117.
7. CAN bus electronic control device for automobile according to claim 1, it is characterized in that: described CAN driver module is PCF82C250.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102178718A CN102063095B (en) | 2009-11-18 | 2009-11-18 | CAN bus electronic control device for automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102178718A CN102063095B (en) | 2009-11-18 | 2009-11-18 | CAN bus electronic control device for automobile |
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| Publication Number | Publication Date |
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| CN102063095A CN102063095A (en) | 2011-05-18 |
| CN102063095B true CN102063095B (en) | 2013-03-06 |
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| CN2009102178718A Expired - Fee Related CN102063095B (en) | 2009-11-18 | 2009-11-18 | CAN bus electronic control device for automobile |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231076B (en) * | 2011-07-05 | 2013-06-12 | 奇瑞汽车股份有限公司 | Automotive human-machine interface system and operating method thereof |
| CN103116350A (en) * | 2012-12-06 | 2013-05-22 | 金龙联合汽车工业（苏州）有限公司 | Car controller area network (CAN) communication failure detection system and detection method thereof |
| CN103139060B (en) * | 2013-03-01 | 2015-10-28 | 哈尔滨工业大学 | Based on the high fault tolerance CAN digital gateway of two CSTR |
| CN104375472A (en) * | 2014-04-25 | 2015-02-25 | 芜湖佳景科技有限公司 | Intelligent switch for heavy truck |
| CN105599705B (en) * | 2015-12-17 | 2017-09-26 | 北京理工大学 | The not peer-to-peer variable period dynamic regulation control based on network device of electric automobile |
| CN106789694A (en) * | 2016-11-12 | 2017-05-31 | 驭联智能科技发展（上海）有限公司 | Novel on-vehicle equipment communication control method and system |
| CN109318799B (en) * | 2017-07-31 | 2020-11-20 | 比亚迪股份有限公司 | Automobile, automobile ADAS system and control method thereof |
| CN113050465A (en) * | 2019-12-27 | 2021-06-29 | 比亚迪股份有限公司 | CAN bus system, control system, automobile and engineering machinery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1189393A2 (en) * | 2000-09-15 | 2002-03-20 | Robert Bosch Gmbh | Accessing and/or controlling CAN node arrangements, including vehicle control units, during vehicle operation |
| CN101123561A (en) * | 2007-05-10 | 2008-02-13 | 中国科学院电工研究所 | Intelligent car body network system |
| CN101456391A (en) * | 2008-10-30 | 2009-06-17 | 奇瑞汽车股份有限公司 | Automobile complete vehicle electronic appliance CANBUS network control method |
| CN201638067U (en) * | 2009-11-18 | 2010-11-17 | 吉林大元电子科技有限公司 | Automobile CAN bus electronic control unit |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1189393A2 (en) * | 2000-09-15 | 2002-03-20 | Robert Bosch Gmbh | Accessing and/or controlling CAN node arrangements, including vehicle control units, during vehicle operation |
| CN101123561A (en) * | 2007-05-10 | 2008-02-13 | 中国科学院电工研究所 | Intelligent car body network system |
| CN101456391A (en) * | 2008-10-30 | 2009-06-17 | 奇瑞汽车股份有限公司 | Automobile complete vehicle electronic appliance CANBUS network control method |
| CN201638067U (en) * | 2009-11-18 | 2010-11-17 | 吉林大元电子科技有限公司 | Automobile CAN bus electronic control unit |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2003-143164A 2003.05.16 |
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Granted publication date: 20130306 Termination date: 20151118 |