CN201965787U - Automobile bus testing device - Google Patents
Automobile bus testing device Download PDFInfo
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- CN201965787U CN201965787U CN2011200891296U CN201120089129U CN201965787U CN 201965787 U CN201965787 U CN 201965787U CN 2011200891296 U CN2011200891296 U CN 2011200891296U CN 201120089129 U CN201120089129 U CN 201120089129U CN 201965787 U CN201965787 U CN 201965787U
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Abstract
The utility model provides an automobile bus testing device, which is a testing teaching device for an automobile control system based on a CAN (Controller Area Network) and an LIN which are vehicle mounted. The device adopts an automobile CAN and LIN double-bus topology structure, and consists of three independent CAN nodes, three independent LIN nodes, and two CAN and LIN double-bus nodes, wherein the independent CAN node comprises an engine node, an instrument node and a sensor node; the independent LIN node comprises a vehicle-mounted radio receiver node, a lamp system and vehicle window node, and an radio receiver, lamp system and vehicle window control node; and the CAN and LIN double-bus node comprises a gateway node and a programming node. The testing device can well simulate automobile LIN bus communication, automobile CAN bus communication, and automobile LIN bus and CAN bus gateway communication in an automobile bus. The automobile bus testing device has a relatively lower cost, and is suitable for being used as a testing teaching device for special courses of automobile bus technology.
Description
Technical field
The utility model relates to a kind of experimental teaching unit of the simulated automotive control system based on vehicle-mounted CAN and LIN dual bus, especially a kind of simulated automotive control system based on bussing technique can realize by the control to motor car engine, sensor, lamp system, radio, vehicle window of CAN bus and LIN bus.This experimental provision is the high-end teaching and scientific research platform towards automotive electronics, Vehicle Engineering specialty.
Background technology
At present, the automotive electronic technology development is very rapid, and bussing technique is widely used in automobile manufacturing field.Automotive electronicsization has become current focus, and electronic technology and auto manufacturing technology progressively merge, and the development of automobile industry more is embodied in the development of automotive electronic technology.Along with the fast development of the automobile industry demand for technical talents to the automotive electronics aspect will increase greatly.
And the automotive electronics specialty at home colleges and universities offer less, at present not at the Specialty Experiment equipment of automobile bus technology.Many is CAN bus experimental provision, mainly is two kinds of control system, and a kind of is the control system of simulated field environment (such as the colliery control system), and its cost is than higher and be not suitable for automotive environment; A kind of is the Full Vehicle System bus, its cost is not opened to the outside world than higher and inner bus system, the student does experiment and can only view and emulate and can not go deep into programmed, and existing two kinds of simulated-bus systems all are not suitable for extensively the college experiment teaching equipment as automobile bus technology course.
Summary of the invention
Lower and be suitable as the college experiment teaching equipment of automobile bus technology specialty course again at there not being cost, in order to promote that better numerous teachers and students carry out theoretical practical teaching and researcher carries out the automobile bus technical research, the utility model provides a kind of is convenient to students practise, the teacher is teaching and research and the automobile bus experimental provision of researcher research and development.
Automobile LIN bus communication, vehicle CAN bus communication and automobile LIN bus and the CAN bus gateway communication of this device in can well the simulated automotive bus.
To achieve these goals, the technical solution of the utility model is: automobile bus experimental provision, circuit board are fixed in the experimental box, and experimental box uses the 220V power supply; Adopt automobile CAN-bus and LIN bus dual bus topological structure, by three independent CAN nodes, three independently LIN node and two CAN and LIN dual bus nodes, each node all is made up of independent cpu motherboard and correspondent peripheral circuit; Described three independent CAN nodes are engine node, instrument node, sensor node; Described three independently the LIN node be vehicle-mounted radio node, lamp system and vehicle window node, radio and lamp system and vehicle window Control Node; A described CAN and LIN dual bus node are gateway nodes, and another CAN and LIN dual bus node are programming nodes; Be provided with serial line interface at gateway node, conveniently communicate by letter with host computer; At other CAN, the LIN expansion interface of being provided with of gateway node, conveniently communicate by letter with extraneous CAN, LIN bus apparatus; Above node and circuit arrangement are on circuit board.
Wherein the engine node is mainly shown by speed of a motor vehicle direct current generator, sensor and the speed of a motor vehicle, and engine speed direct current generator, sensor and engine speed show that some function buttons and CAN interface are formed; The instrument node is shown by the stepper motor of the speed of a motor vehicle, engine speed and water temperature that mainly oil mass shows that pressure shows that mileometer shows, the indication of left and right sides steering indicating light, and some function buttons and CAN interface are formed; Sensor node is mainly by cooling-water temperature sensor and demonstration, fuel-quantity transducer and demonstration, and pressure transducer and demonstration, the accelerator pedal simulation, the gear simulation, the CAN interface is formed.
Wherein the vehicle-mounted radio node mainly by searching the platform button, is deposited the platform button, and the platform button is transferred in last stepping, and the platform button is transferred in following stepping, and frequency shows, searches platform and successfully indicates, and the LIN interface is formed; Mainly by the brake lamp indication, left steering is indicated for lamp system and vehicle window node, the right turn indication, and the vehicle window stepper motor, the LIN interface is formed; Radio and lamp system and vehicle window Control Node mainly by brake control button, turn to control, search the platform button, deposit the platform button, and the platform button is transferred in last stepping, and the platform button is transferred in following stepping, and relevant information shows that the LIN interface is formed.
Described CAN and LIN dual bus node comprise gateway node, programming node.Wherein gateway node is mainly by the CAN interface, the LIN interface, and the indication of CAN bus data bag, the indication of LIN bus data bag is formed; Programming node is mainly by the CAN interface, the LIN interface, and 3.5 cun LCD, temperature sensor, function button, the LED indication, adjustable potentiometer is formed.
Cpu motherboard mainly is 8 or 16 microprocessor of Freescale by model, power module, serial interface module and I/O expansion module are formed, various sensors and controlling object that the difference in functionality that peripheral circuit is mainly realized according to each node and requiring is provided with.
The beneficial effects of the utility model: download by serial interface module and to realize control, also can download and realize control to each node of LIN bus and CAN bus by the serial interface module in the cpu motherboard in the programming node to individual node to the cpu motherboard in each node.Be provided with LCD at radio and lamp system and vehicle window Control Node and programming node and show and to realize the network monitoring function that the serial line interface of setting and CAN, LIN expansion interface can be realized the function expansion of experimental provision with host computer or extension instrument equipment.The cpu motherboard Interface design of each node has taken into full account the compatibility of product up-gradation in the experimental provision, except having abundant interface resource, good extensibility also is a big characteristic of this device, has alleviated the burden that the user expands new function.
Description of drawings
Fig. 1 is the structured flowchart of automobile bus experimental provision described in the utility model.
Fig. 2 is the topology diagram of automobile bus experimental provision described in the utility model.
Fig. 3 is system's connection layout of automobile bus experimental provision described in the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.
As shown in Figure 1, automobile bus experimental provision described in the utility model is made up of experiment casing and circuit board.Wherein circuit board is by power module, the engine node, and the instrument node, sensor node, gateway node, the vehicle-mounted radio node, lamp system and vehicle window node, radio and lamp system and vehicle window Control Node, programming node and CAN, LIN expansion interface are formed.
As shown in Figure 2, automobile bus experimental provision described in the utility model adopts the dual bus topological structure, and first zone of circuit board comprises the engine node of CAN bus, instrument node, the gateway node of sensor node and CAN and LIN dual bus; Second zone of circuit board comprises the vehicle-mounted radio node of LIN bus, lamp system and vehicle window node, the programming node of radio and lamp system and vehicle window Control Node and CAN and LIN dual bus.This experimental provision has been realized the automobile LIN bus communication, vehicle CAN bus communication and automobile LIN bus and CAN bus gateway communication.And experimental provision is provided with the serial line interface convenience at gateway node and communicates by letter with host computer, is provided with CAN by gateway node, the LIN expansion interface is conveniently communicated by letter with extraneous CAN, LIN bus apparatus.
As shown in Figure 2, each node all is made up of independent cpu motherboard and correspondent peripheral circuit.Cpu motherboard mainly is 8 or 16 microprocessor of Freescale by model, power module, and serial interface module and I/O expansion module are formed, and wherein serial interface module is used for debugging or downloads.
As shown in Figure 2, the engine node is the CAN node, is mainly shown by speed of a motor vehicle direct current generator, sensor and the speed of a motor vehicle, and engine speed direct current generator, sensor and engine speed show that some function buttons and CAN interface are formed.This node is used for the control and the demonstration of simulated engine, and the serial interface module of the cpu motherboard by this node downloads or downloaded by the serial interface module of the cpu motherboard of programming node, can realize the control and the Presentation Function of engine.The rotating speed of some function button control direct current generators (rotating speed of simulated engine), adopt 4 corresponding charactrons to show the rotating speed (expression present engine rotating speed) of direct current generator, and the rotating speed of control direct current generator (simulation speed of a motor vehicle rotating speed), adopt 4 corresponding charactrons to show the rotating speed (the expression present engine speed of a motor vehicle) of direct current generator.
As shown in Figure 2, the instrument node is the CAN node, and mainly the stepper motor by the speed of a motor vehicle, engine speed and water temperature shows, oil mass shows that pressure shows that mileometer shows, the indication of left and right sides steering indicating light, and some function buttons and CAN interface are formed.This node is used to simulate control and the demonstration to various instrument, the serial interface module of the cpu motherboard by this node downloads or is downloaded by the serial interface module of the cpu motherboard of programming node, can realize the demonstration of the speed of a motor vehicle, engine speed, water temperature, oil mass, pressure, mileometer and left and right sides steering indicating light.Wherein data presented can be determined by the value that program is set in advance, also can show the pairing data of each sensor of sensor node by CAN communication.Some in addition function buttons are used for the function expansion of this node.
As shown in Figure 2, sensor node is the CAN node, mainly by cooling-water temperature sensor and demonstration, and fuel-quantity transducer and demonstration, pressure transducer and demonstration, the accelerator pedal simulation, gear simulation and CAN interface are formed.This node is used to simulate water temperature, oil mass, pressure and gear position sensor, adjustable potentiometer in this node is used for simulation accelerated pedal, oil mass, pressure transducer, five gear switch are used for the simulated automotive gear, and 34 figure place sign indicating number display tubes are used for showing the A/D conversion value of 3 adjustable potentiometer institute corresponding voltage.Sensor node can be used to realize that with the instrument node CAN communicates by letter in addition, realize communication between two nodes according to the application layer protocol of instrument node CAN interface, make stepper motor and LED light beam in the instrument node show the data of the speed of a motor vehicle in the sensor node, water temperature, pressure, oil mass.
As shown in Figure 2, gateway node is CAN and LIN dual bus node, mainly by the CAN interface, and the LIN interface, the indication of CAN bus data bag, indication of LIN bus data bag and serial line interface are formed.This node is used to realize the supervision and the forwarding capability of CAN, LIN packet, the function expansion that the serial line interface in this node can link to each other with host computer or extension instrument equipment and realize experimental facilities.
As shown in Figure 2, the vehicle-mounted radio node is the LIN node, mainly by searching the platform button, deposits the platform button, and the platform button is transferred in last stepping, and the platform button is transferred in following stepping, and frequency shows, searches platform and successfully indicates, and antennal interface and LIN interface are formed.This node is used to simulate the control and the demonstration of vehicle-mounted radio, 4 figure place sign indicating number pipes are used to show the radio frequency, the LED lamp is used for indication and searches the platform success, and be provided with the automatic channel search button, several preset the frequency button, deposit platform affirmation button, manually transfer platform to add button, manually transfer platform to subtract button and mute button.
As shown in Figure 2, lamp system and vehicle window node are the LIN node, mainly by the brake lamp indication, and the left steering indication, the right turn indication, third gear switch, some function buttons, vehicle window stepper motor and LIN interface are formed.This node is used to simulate the control of car light and vehicle window, wherein third gear switch is simulated left and right sides pole changer, LED lamp indication left steering lamp and right turn lamp, function button simulation brake, expression such as LED lamp brake indicating lamp, the lifting of stepper motor simulation vehicle window, and by function button control vehicle window stepper motor.
As shown in Figure 2, radio and lamp system and vehicle window Control Node are the LIN node, mainly by turning to control, brake control button, search the platform button, deposit the platform button, the platform button is transferred in last stepping, the platform button is transferred in following stepping, vehicle window control button, and relevant information shows and the LIN interface is formed.This node is used for the control to vehicle-mounted radio node and lamp system and vehicle window node, finish the function button control vehicle-mounted radio node in the node thus and the correlation function of lamp system and vehicle window node by LIN communication, wherein LED display is used to show relevant information.
As shown in Figure 2, programming node is CAN and LIN dual bus node, mainly by the CAN interface, and the LIN interface, 3.5 cun LCD, temperature sensor, plurality of keys, LED indication and adjustable potentiometer are formed.This node is used to realize the control to each node, thereby downloads with debugging and realize that CAN, LIN communicate by letter by each node being carried out program.
As shown in Figure 3, automobile bus experimental provision described in the utility model uses the 220V external power supply, experimental provision links to each other with the USB interface of main frame by USB interface-based BDM Debugger, the other end links to each other by the cpu motherboard of each node on three adapters and the experimental provision, carry out the download and the debugging of program, make each node able to programme according to setting program work.
Automobile bus experimental provision described in the utility model adopts the teaching and experiment method of automobile LIN bus communication, vehicle CAN bus communication and automobile LIN bus and CAN bus gateway communication.This experimental provision can be by controlling each node of LIN bus and CAN bus to individual module and control module write-in program, thereby reach applying in a flexible way to LIN bus communication and CAN bus communication.Being provided with LCD at radio and lamp system and vehicle window Control Node and programming node shows and can realize the network monitoring function, be provided with at gateway node that serial line interface is convenient communicates by letter with host computer, be provided with CAN, the expansion of LIN dual bus mouthful and conveniently communicate by letter in that gateway node is other with extraneous CAN, LIN bus apparatus.
Automobile bus experimental provision described in the utility model can set out following experiment:
Automobile LIN bus basis communication experiment, can be separately the cpu motherboard of vehicle-mounted radio node or lamp system and vehicle window node be downloaded and finish control, also can realize control by programming node to vehicle-mounted radio node or lamp system and vehicle window node to individual node.Understand LIN bus protocol and characteristics by this type of experiment, grasp the physical characteristics of LIN bus, grasp the hardware method of attachment between LIN bus driver and the controller, write LIN bus driver, and finish the driving test based on serial ports.
Automobile CAN-bus basis communication experiment, can be separately the cpu motherboard of engine node, instrument node or sensor node be downloaded and finish control, also can realize control by programming node to engine node, instrument node, sensor node to individual node.Understand the characteristics of CAN bus in depth by this type of experiment, grasp CAN bus physical characteristic, grasp CAN bus protocol message structure, understand the data transmit-receive process of CAN bus, understand the structure of CAN controller, grasp programmed method based on the C language.
Automobile LIN simulated-bus control experiment, can finish control by radio and lamp system and vehicle window Control Node to vehicle-mounted radio, lamp system and vehicle window, test on the basis of understanding LIN bus protocol, characteristics and physical characteristics by this type of, by the simple application layer protocol of autonomous Design, simulation car light, vehicle window and radio controlling object on the control LIN node.
Automobile CAN-bus simulation control experiment, can realize the interlock of engine node, instrument node and sensor node, on the basis of understanding CAN bus protocol, characteristics and physical characteristics, by the simple application layer protocol of autonomous Design, controlling object such as the simulated engine on the control CAN node, the speed of a motor vehicle, water temperature, oil mass, pressure.
LIN bus and CAN bus gateway communication experiment are grasped the method for LIN bus and CAN bus mutual communication by the notion of this type of experiment understanding gateway, and verify the correctness of communication by working control.
Claims (6)
1. automobile bus experimental provision, circuit board is fixed in the experimental box, and experimental box uses the 220V power supply; It is characterized in that: adopt automobile CAN-bus and LIN bus dual bus topological structure, by three independent CAN nodes, three independently LIN node and two CAN and LIN dual bus nodes, each node all is made up of independent cpu motherboard and correspondent peripheral circuit; Described three independent CAN nodes are engine node, instrument node, sensor node; Described three independently the LIN node be vehicle-mounted radio node, lamp system and vehicle window node, radio and lamp system and vehicle window Control Node; A described CAN and LIN dual bus node are gateway nodes, and another CAN and LIN dual bus node are programming nodes; Be provided with serial line interface at gateway node, conveniently communicate by letter with host computer; Above node and circuit arrangement are on circuit board.
2. automobile bus experimental provision according to claim 1 is characterized in that: cpu motherboard is 8 or 16 microprocessor of Freescale by model, power module, and serial interface module and I/O expansion module are formed.
3. automobile bus experimental provision according to claim 1, it is characterized in that: described engine node is shown by speed of a motor vehicle direct current generator, sensor and the speed of a motor vehicle, engine speed direct current generator, sensor and engine speed show that some function buttons and CAN interface are formed;
Described instrument node is shown that by the stepper motor of the speed of a motor vehicle, engine speed and water temperature oil mass shows that pressure shows that mileometer shows, the indication of left and right sides steering indicating light, and some function buttons and CAN interface are formed;
Described sensor node is by cooling-water temperature sensor and demonstration, fuel-quantity transducer and demonstration, and pressure transducer and demonstration, the accelerator pedal simulation, the gear simulation, the CAN interface is formed.
4. automobile bus experimental provision according to claim 1 is characterized in that: described vehicle-mounted radio node is deposited the platform button by searching the platform button, and the platform button is transferred in last stepping, and the platform button is transferred in following stepping, and frequency shows, searches platform and successfully indicates, and the LIN interface is formed;
Described lamp system and vehicle window node are indicated by brake lamp, the left steering indication, and the right turn indication, the vehicle window stepper motor, the LIN interface is formed;
Described radio and lamp system and vehicle window Control Node turn to control by brake control button, search the platform button, deposit the platform button, and the platform button is transferred in last stepping, and the platform button is transferred in following stepping, and relevant information shows that the LIN interface is formed.
5. automobile bus experimental provision according to claim 1 is characterized in that: described gateway node is by the CAN interface, the LIN interface, and the indication of CAN bus data bag, the indication of LIN bus data bag is formed;
Described programming node is by the CAN interface, the LIN interface, and 3.5 cun LCD, temperature sensor, function button, the LED indication, adjustable potentiometer is formed.
6. automobile bus experimental provision according to claim 1 is characterized in that: at other CAN, the LIN expansion interface of being provided with of gateway node, conveniently communicate by letter with extraneous CAN, LIN bus apparatus.
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| CN2011200891296U CN201965787U (en) | 2011-03-30 | 2011-03-30 | Automobile bus testing device |
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| CN2011200891296U CN201965787U (en) | 2011-03-30 | 2011-03-30 | Automobile bus testing device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102867454A (en) * | 2012-10-15 | 2013-01-09 | 湖南大学 | Teaching experiment platform of automobile body network control system |
| CN103481816A (en) * | 2013-09-12 | 2014-01-01 | 浙江吉利控股集团有限公司 | Automatic turn signal lamp control system of automobiles |
| WO2014012347A1 (en) * | 2012-07-19 | 2014-01-23 | 杭州三花研究院有限公司 | Lin network slave node control system, lin network slave node and method |
| CN103975316A (en) * | 2012-06-15 | 2014-08-06 | 罗伯特·博世有限公司 | Sensor arrangement for an electric/electronic architecture and associated electric/electronic architecture for a vehicle |
| CN104867374A (en) * | 2014-09-15 | 2015-08-26 | 北汽福田汽车股份有限公司 | Slave plate ID learning system and method |
| CN104952340A (en) * | 2015-07-02 | 2015-09-30 | 山东星科智能科技股份有限公司 | Automobile circuit connection check experiment box |
| CN106067273A (en) * | 2016-06-08 | 2016-11-02 | 安徽睿联测控技术有限公司 | A kind of automotive electronics teaching and experiment method based on CAN intelligent node |
-
2011
- 2011-03-30 CN CN2011200891296U patent/CN201965787U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103975316A (en) * | 2012-06-15 | 2014-08-06 | 罗伯特·博世有限公司 | Sensor arrangement for an electric/electronic architecture and associated electric/electronic architecture for a vehicle |
| WO2014012347A1 (en) * | 2012-07-19 | 2014-01-23 | 杭州三花研究院有限公司 | Lin network slave node control system, lin network slave node and method |
| US9628289B2 (en) | 2012-07-19 | 2017-04-18 | Hangzhou Sanhua Research Institute Co., Ltd. | LIN network slave node control system, LIN network slave node and method |
| CN102867454A (en) * | 2012-10-15 | 2013-01-09 | 湖南大学 | Teaching experiment platform of automobile body network control system |
| CN102867454B (en) * | 2012-10-15 | 2014-11-12 | 湖南大学 | Teaching experiment platform of automobile body network control system |
| CN103481816A (en) * | 2013-09-12 | 2014-01-01 | 浙江吉利控股集团有限公司 | Automatic turn signal lamp control system of automobiles |
| CN104867374A (en) * | 2014-09-15 | 2015-08-26 | 北汽福田汽车股份有限公司 | Slave plate ID learning system and method |
| CN104867374B (en) * | 2014-09-15 | 2018-05-11 | 北汽福田汽车股份有限公司 | It is a kind of from plate ID learning systems and method |
| CN104952340A (en) * | 2015-07-02 | 2015-09-30 | 山东星科智能科技股份有限公司 | Automobile circuit connection check experiment box |
| CN106067273A (en) * | 2016-06-08 | 2016-11-02 | 安徽睿联测控技术有限公司 | A kind of automotive electronics teaching and experiment method based on CAN intelligent node |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20150330 |
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| EXPY | Termination of patent right or utility model |