CN103368801A - High-and-low speed CAN (controller area network) bus compatible device and working method thereof - Google Patents
High-and-low speed CAN (controller area network) bus compatible device and working method thereof Download PDFInfo
- Publication number
- CN103368801A CN103368801A CN2013103318859A CN201310331885A CN103368801A CN 103368801 A CN103368801 A CN 103368801A CN 2013103318859 A CN2013103318859 A CN 2013103318859A CN 201310331885 A CN201310331885 A CN 201310331885A CN 103368801 A CN103368801 A CN 103368801A
- Authority
- CN
- China
- Prior art keywords
- bus
- speed
- low speed
- network
- programmable processor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Landscapes
- Small-Scale Networks (AREA)
Abstract
The invention discloses a high-and-low speed CAN (controller area network) bus compatible device and a working method thereof. The device comprises a programmable processor which takes charge of bus initialization and data processing, a CAN bus controller, a low-speed CAN bus transceiver and a high-speed CAN bus transceiver; the programmable processor is connected with the CAN bus controller; two circuits are divided from the CAN bus controller to respectively connect the high-speed CAN bus transceiver and the low-speed CAN bus transceiver; the high-speed CAN bus transceiver and the low-speed CAN bus transceiver are connected with each other through a selector switch, and then are connected into an in-vehicle CAN network; and meanwhile, the selector switch is directly connected with the programmable processor. The device and the working method thereof have the beneficial effects that the compatibility of a high-speed CAN network and a low-speed CAN network is realized; processing architecture is unified; the device is convenient to install and maintain; the unified processing of the data of the high-speed CAN network and the low-speed CAN network is realized; and the system is flexible and high in adaptability.
Description
Technical field
The present invention relates to a kind of field bus technique field, particularly a kind of high low speed CAN bus compatible device and method of work thereof.
Background technology
In Hyundai Motor, automobile-used electric equipment is along with people are little by little increasing improving constantly also of each functional requirement of automobile, from engine braking control, safety assurance system, instrument warning system, and improve car comfort and recreational and various effort that make, make the system of a complexity of automotive electrical system formation, and the CAN bussing technique connects simply with its hardware, good reliability, real-time and cost performance are widely used in automotive field.Can according to different requirements, automotive CAN network can be divided into high-speed CAN network, 2 speed grade of low speed CAN network.CAN network at a high speed is comprised of nodes such as ABS, AMT and EFIs; These ECU (Electrical Control Unit) numbers are few, real-time and stability requirement high, and it is the high-speed CAN network of 500Kbps that design forms transmission rate.Low speed CAN network, be comprised of numerous vehicle body motors and car light node, these ECU (Electrical Control Unit) quantity are many, the data numerous and complicated of transmission, accuracy, stability and requirement are better than real-time, and design composition transmission rate is that the middle low speed CAN network of 125Kbps is controlled.Because Shanghai Volkswagen market vehicle is more, automobile type configuration is different, and the CAN bus network of usefulness also is not quite similar, and communicates by letter normally with the GPS vehicle navigator for making automobile, can at lower cost, make things convenient for the client to install and use normally by the compatible CAN bus unit of this high low speed.
Summary of the invention
Goal of the invention of the present invention is: for the problem of above-mentioned existence, provide a kind of high low speed CAN bus compatible device.
The technical solution used in the present invention is such:
A kind of high low speed CAN bus compatible device is characterized in that: comprise the programmable processor of being responsible for bus initialization and data processing, CAN bus control unit, low speed CAN bus transceiver and high-speed CAN bus transceiver; Programmable processor is connected with the CAN bus control unit, and the CAN bus control unit is told two-route wire and is connected with low speed CAN bus transceiver with the high-speed CAN bus transceiver respectively; Connect by diverter switch between high-speed CAN bus transceiver and the low speed CAN bus transceiver, again by diverter switch access vehicle-mounted CAN network; Diverter switch directly is connected with programmable processor simultaneously.
Further, described programmable processor is preferably a 8 single-chip microcomputer TMP89FS60UG of TOSHIBA company; Described low speed CAN bus transceiver is preferably TJA1055; Described high-speed CAN bus transceiver is preferably MCP2551; Said CAN bus control unit is preferably MCP2515; Described diverter switch is preferably toggle switch.
A kind of method of work of high low speed CAN bus compatible device is characterized in that: may further comprise the steps:
A) according to different CAN bus network vehicles, toggle switch is switched to corresponding state, system's power-up initializing;
B) when CAN bus unit detection CAN data, according to the state that switch arranges, allow the programmable processor operation at a high speed or the subprogram of low speed;
C) send to serial ports by data on the parsing CAN bus network, and with result.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:
1, realizes the compatibility of high and low CAN bus network, unified the processing framework, made things convenient for installation, maintenance.
2, realized the unified processing of high and low CAN bus network data, system is more flexible, and adaptive capacity is better.
Description of drawings
Fig. 1 is the compatible CAN bus of high low speed gateway hardware principle block diagram;
Fig. 2 is the compatible CAN gateway software of high low speed flow chart.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Embodiment 1:
As shown in Figure 1, a kind of high low speed CAN bus compatible device, comprise and adopt TOSHIBA a 8 single-chip microcomputer TMP89FS60UG of company as programmable processor, the initialization of the main CAN of being responsible for and data are processed, adopt TJA1055 as low speed CAN bus transceiver, adopt MCP2551 as the high-speed CAN bus transceiver, adopt MCP2515 as the CAN bus control unit; The MCP2515 programmable processor is connected with the MCP2515CAN bus control unit, MCP2515 CAN bus control unit is told two-route wire and is connected with TJA1055 low speed CAN bus transceiver respectively at MCP2551 high-speed CAN bus transceiver, connect by toggle switch between MCP2551 and the TJA1055, and by toggle switch access vehicle-mounted CAN network, toggle switch is connected with the TMP89FS60UG programmable processor simultaneously.
The beneficial effect of present embodiment is: realized the compatibility of high and low CAN bus network, unified the processing framework, made things convenient for installation, maintenance.
Embodiment 2:
As shown in Figure 2, a kind of method of work of high low speed CAN bus compatible device may further comprise the steps:
A) according to different CAN bus network vehicles, toggle switch is switched to corresponding state;
B) system's power-up initializing;
C) when CAN bus unit detection CAN data, according to the state that switch arranges, allow the programmable processor operation at a high speed or the subprogram of low speed;
D) send to serial ports by data on the parsing CAN bus network, and with result;
E) data are returned after sending successfully;
The beneficial effect of present embodiment is: realized unified processing of height CAN speed network data, system is more flexible, and adaptive capacity is better.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. one kind high low speed CAN bus compatible device is characterized in that: comprise the programmable processor of being responsible for bus initialization and data processing, CAN bus control unit, low speed CAN bus transceiver and high-speed CAN bus transceiver; Programmable processor is connected with the CAN bus control unit, and the CAN bus control unit is told two-route wire and is connected with low speed CAN bus transceiver with the high-speed CAN bus transceiver respectively; Connect by diverter switch between high-speed CAN bus transceiver and the low speed CAN bus transceiver, again by diverter switch access vehicle-mounted CAN network; Diverter switch directly is connected with programmable processor simultaneously.
2. high low speed CAN bus compatible device according to claim 1, it is characterized in that: described programmable processor is preferably a 8 single-chip microcomputer TMP89FS60UG of TOSHIBA company; Described low speed CAN bus transceiver is preferably TJA1055; Described high-speed CAN bus transceiver is preferably MCP2551; Said CAN bus control unit is preferably MCP2515; Described diverter switch is preferably toggle switch.
3. the method for work of a claim 1 or 2 described high low speed CAN bus compatible device is characterized in that: may further comprise the steps:
A) according to different CAN bus network vehicles, toggle switch is switched to corresponding state, system's power-up initializing;
B) when CAN bus unit detection CAN data, according to the state that switch arranges, allow the programmable processor operation at a high speed or the subprogram of low speed;
C) send to serial ports by data on the parsing CAN bus network, and with result.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2013103318859A CN103368801A (en) | 2013-08-02 | 2013-08-02 | High-and-low speed CAN (controller area network) bus compatible device and working method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2013103318859A CN103368801A (en) | 2013-08-02 | 2013-08-02 | High-and-low speed CAN (controller area network) bus compatible device and working method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN103368801A true CN103368801A (en) | 2013-10-23 |
Family
ID=49369382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2013103318859A Pending CN103368801A (en) | 2013-08-02 | 2013-08-02 | High-and-low speed CAN (controller area network) bus compatible device and working method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103368801A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105262655A (en) * | 2015-09-16 | 2016-01-20 | 复旦大学 | Communication method higher in rate and compatible with CAN2.0 bus |
CN106959620A (en) * | 2016-01-11 | 2017-07-18 | 黎凯华 | A kind of vehicle-mounted CAN bus data communication device and its method for designing |
CN107659478A (en) * | 2017-11-03 | 2018-02-02 | 深圳市路畅科技股份有限公司 | A kind of high low speed CAN compatibility method, equipment and readable storage medium storing program for executing |
CN107872920A (en) * | 2016-09-27 | 2018-04-03 | 联车(上海)信息科技有限公司 | Pcb board for auto electronic device |
CN114513220A (en) * | 2021-12-31 | 2022-05-17 | 上海易咖智车科技有限公司 | Communication switching device |
CN115622832A (en) * | 2022-09-27 | 2023-01-17 | 苏州海格电控股份有限公司 | CAN communication time-sharing multiplexing control method, device, terminal and storage medium |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050017557A (en) * | 2003-08-14 | 2005-02-22 | 주식회사 현대오토넷 | Gateway for processing k-line input signal in vehicles and input signal processing method thereof |
CN101360036A (en) * | 2007-07-31 | 2009-02-04 | 比亚迪股份有限公司 | CAN bus gateway controller and data transmission method between CAN buses |
CN103200062A (en) * | 2013-03-29 | 2013-07-10 | 北京经纬恒润科技有限公司 | Controller area network (CAN) bus data transceiver |
-
2013
- 2013-08-02 CN CN2013103318859A patent/CN103368801A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20050017557A (en) * | 2003-08-14 | 2005-02-22 | 주식회사 현대오토넷 | Gateway for processing k-line input signal in vehicles and input signal processing method thereof |
CN101360036A (en) * | 2007-07-31 | 2009-02-04 | 比亚迪股份有限公司 | CAN bus gateway controller and data transmission method between CAN buses |
CN103200062A (en) * | 2013-03-29 | 2013-07-10 | 北京经纬恒润科技有限公司 | Controller area network (CAN) bus data transceiver |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105262655A (en) * | 2015-09-16 | 2016-01-20 | 复旦大学 | Communication method higher in rate and compatible with CAN2.0 bus |
CN105262655B (en) * | 2015-09-16 | 2018-08-07 | 复旦大学 | A kind of communication means with higher rate of compatible CAN2.0 buses |
CN106959620A (en) * | 2016-01-11 | 2017-07-18 | 黎凯华 | A kind of vehicle-mounted CAN bus data communication device and its method for designing |
CN107872920A (en) * | 2016-09-27 | 2018-04-03 | 联车(上海)信息科技有限公司 | Pcb board for auto electronic device |
CN107872920B (en) * | 2016-09-27 | 2022-07-26 | 深圳市华升鑫科技有限公司 | PCB board for vehicle electronic device |
CN107659478A (en) * | 2017-11-03 | 2018-02-02 | 深圳市路畅科技股份有限公司 | A kind of high low speed CAN compatibility method, equipment and readable storage medium storing program for executing |
CN114513220A (en) * | 2021-12-31 | 2022-05-17 | 上海易咖智车科技有限公司 | Communication switching device |
CN115622832A (en) * | 2022-09-27 | 2023-01-17 | 苏州海格电控股份有限公司 | CAN communication time-sharing multiplexing control method, device, terminal and storage medium |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN210578605U (en) | Automobile electronic and electrical architecture topological structure based on zone controller | |
CN103368801A (en) | High-and-low speed CAN (controller area network) bus compatible device and working method thereof | |
CN201573608U (en) | Integrated control system of vehicle-mounted controller LAN (Local Area Network)/LIN (Local Internet Network) | |
CN109995631B (en) | Vehicle-mounted control system and method with domain control function | |
US9813525B2 (en) | In-vehicle apparatus for signal conversion between ethernet and CAN communication and control method thereof | |
US20180232959A1 (en) | Enhanced central gateway for vehicle networking | |
CN202721706U (en) | Vehicle-mounted network system and automobile | |
CN204161358U (en) | Based on automotive voice control system and the automobile of terminal | |
CN110641396B (en) | Hybrid network architecture system of new energy commercial vehicle and new energy commercial vehicle | |
CN111352409A (en) | Serial data bus communication control system and control method for hybrid electric vehicle | |
CN103264673A (en) | Hybrid electric vehicle network communication system with two CAN (Controller Area Network) buses | |
CN208046660U (en) | Novel on-vehicle system based on vehicle-mounted Ethernet | |
CN106427827A (en) | Automobile computer control system | |
CN202783013U (en) | Distributed vehicle body control system based on CAN (controller area network) bus | |
CN104539498A (en) | Automotive CAN/LIN network structure | |
CN102935831B (en) | A kind of automotive CAN network control system | |
US10277680B2 (en) | Communication method of electronic module in vehicle, and vehicle including the electronic module | |
CN103117920A (en) | Vehicular independent gateway | |
KR20070027324A (en) | Inner vehicle communication system and gateway | |
CN204915558U (en) | Signal processing device of car CAN bus | |
CN201989733U (en) | Network topology structure for intelligent control of automobile as well as automobile | |
CN111311943A (en) | Vehicle, vehicle equipment and signal lamp vehicle speed optimization method thereof | |
CN110853384A (en) | Vehicle and traffic light vehicle speed matching optimization system and method based on 5G technology | |
CN104836687A (en) | Automobile communication network topology | |
CN202929442U (en) | Automobile CAN network control system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131023 |