CN201281659Y - System for recognizing and diagnosing automobile chassis fault - Google Patents
System for recognizing and diagnosing automobile chassis fault Download PDFInfo
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- CN201281659Y CN201281659Y CNU2008201912993U CN200820191299U CN201281659Y CN 201281659 Y CN201281659 Y CN 201281659Y CN U2008201912993 U CNU2008201912993 U CN U2008201912993U CN 200820191299 U CN200820191299 U CN 200820191299U CN 201281659 Y CN201281659 Y CN 201281659Y
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Abstract
The utility model relates to the vehicle fault monitoring branch of technology, specifically to an automobile chassis fault recognition and diagnosing system. In order to overcome problems of overlong sense line, signal attenuation and bed interference immunity in the prior art, the utility model provides an automobile chassis fault recognition and diagnosing system. The system comprises central machine nodes, driving cap nodes, drive axle nodes, car body guard board nodes and brake transmission nodes, the nodes are connected with each other by CAN bus lines, sensing signals acquired by the driving cap nodes, drive axle nodes, car body guard board nodes and brake transmission nodes are converted into digital quantity and are then transmitted to the central machine nodes through CAN network. The utility model adopting a network signal acquisition mode has a strong interference immunity, and has functions of fault recognition and diagnosing, fault recording, fault history enquiring after analyzing and processing the monitoring information; the utility model has a plurality of monitoring points, is easy for function expansion and is convenient for information sharing.
Description
Technical field
The utility model relates to the vehicle failure monitoring technical field, is specifically related to a kind of automobile chassis Fault Identification and diagnostic system.
Background technology
Present vehicle failure monitoring device, be by being installed in the sensor on each assembly, realize the monitoring of each bridge temperature of chassis, shoe brake temperature, checking cylinder pressure, environment temperature, after the parameter that monitors surpasses design parameter, will report to the police, and demonstrate what parameter and transfinite.Because all transducing signals (analog quantity) of this device directly are connected to main frame (point-to-point connection) from sensor, cause sense line long, there is the problem of decay and anti-interference difference in signal, this device can only carry out the parameter overload alarm to the assembly of monitoring, there are not fault diagnosis functions, can not carry out the inquiry of failure logging and historical failure, can't propose instruction maintenance chassis.Therefore must be to signals collecting, transfer mode, the function of Fault Identification, diagnosis is improved.Domestic chassis information monitoring and diagnostic system based on the CAN network also do not have Related product to occur,
Summary of the invention
The purpose of this utility model is to overcome that the sense line that prior art exists is long, signal attenuation and anti-interference difference problem, and a kind of automobile chassis Fault Identification and diagnostic system are provided.
In order to achieve the above object, the technical solution adopted in the utility model is:
A kind of automobile chassis Fault Identification and diagnostic system, its special character is: comprise center machine node, pilothouse node, drive axle node, vehicle body backplate node, braking transmission node, adopt the CAN bus to interconnect between each node, the transducing signal that pilothouse node, drive axle node, vehicle body backplate node, braking transmission node are collected is converted to digital quantity, and passes through the CAN network delivery to the center machine node.
Above-mentioned center machine node comprises microprocessor, LCD driving circuit, LCD display, CAN transceiver one, CAN transceiver two, keyboard, power amplifier and loudspeaker; Described microprocessor is connected with LCD driving circuit, CAN transceiver one, CAN transceiver two, keyboard, power amplifier respectively by the I/O mouth; Described LCD display is connected with the LCD driving circuit, and loudspeaker is connected with power amplifier; Described CAN transceiver two is connected with pilothouse node, drive axle node, vehicle body backplate node and braking transmission node.Microprocessor is responsible for the data message of Coordination Treatment CAN transceiver two, keyboard input, the interactive form that formation needs displays with the user by LCD display and loudspeaker and forms interactive interface, also sends command informations by CAN transceiver two to other 4 nodes simultaneously.
Above-mentioned pilothouse node, drive axle node, vehicle body backplate node, braking transmission node include microprocessor, CAN transceiver, temperature sensor, pressure transducer; Described microprocessor is connected with pressure transducer with temperature sensor by the A/D interface respectively, is connected with tested switching value by universaling I/O port, is connected with tested interruption amount by interrupting the I/O mouth, is connected with the CAN transceiver by the CAN interface; Described CAN transceiver is connected with other node.The simulating signal that microprocessor provides temperature sensor and pressure transducer is converted to digital quantity by the inner A/D change-over circuit of processor and handles, simultaneously with universaling I/O port with interrupt the digital quantity of the detected digital quantity of I/O mouth and pass to the center machine node by the CAN interface in the lump together with temperature, pressure.
Compared with prior art, the beneficial effect of generation of the present utility model is as follows:
1, the utility model adopts networked signals collecting mode, strong interference immunity: the utility model adopts the CAN bus to carry out the high efficient and reliable transmission of bulk information, can thoroughly overcome signal and transmit the decay of distance generation and the problem of anti-interference difference.
2, the utlity model has Fault Identification and the diagnostic function that monitoring information is carried out analyzing and processing: the center machine in the utility model can not only be monitored and Fault Identification in real time to each assembly of chassis, can also carry out analyzing and processing to the information that collects, to diagnosing malfunction and location, and relevant maintenance or emergency measure are proposed, effectively reduce the breakdown maintenance time and the maintenance cost on military chassis.
3, the utlity model has failure logging and historical failure query function: the center machine in the utility model can be when fault takes place be carried out record to trouble spot, at that time the speed of a motor vehicle, engine speed, time, fault parameter etc., and can call inquiry at any time, provide the parameter support to the maintenance and the maintaining of vehicle.
4, the utility model monitoring point is many and be easy to the function expansion: the utility model is except can monitoring each bridge temperature of chassis, shoe brake temperature, checking cylinder pressure, environment temperature, can also monitor the steering oil temperature, turn to oil level, parameters such as fuel quantity and continual mileage, retarder oil temperature, transfer gear temperature, owing to be the CAN network system, it is very convenient to increase the monitoring point, only need on the CAN network, increase node and software changed and just can realize, so be easy to function and expand.
5, the utility model is convenient to information sharing: because center machine has gateway function (being reserved with the CAN interface), therefore can realize information sharing with last dress very easily under the prerequisite that does not influence this apparatus function.
Description of drawings
Fig. 1 is a system chart of the present utility model.
Fig. 2 is the utility model center machine node system block diagram.
Fig. 3 is other node system block diagram of the utility model.
Reference numeral:
1-center machine node, 2-pilothouse node, 3-drive axle node, 4-vehicle body backplate node,
5-braking transmission node, the 6-microprocessor, the 7-LCD driving circuit, the 8-LCD display screen,
9-CAN transceiver one, 10-CAN transceiver two, the 11-keyboard, the 12-power amplifier, the 13-loudspeaker,
The 14-microprocessor, the 15-CAN transceiver, the 16-temperature sensor, the 17-pressure transducer,
The 18-A/D interface, the 19-universaling I/O port, 20-interrupts I/O mouth, 21-CAN interface.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done detailed description.
Referring to Fig. 1, a kind of automobile chassis Fault Identification and diagnostic system, comprise center machine node 1, pilothouse node 2, drive axle node 3, vehicle body backplate node 4, braking transmission node 5, adopt the CAN bus to interconnect between each node, the transducing signal that pilothouse node 2, drive axle node 3, vehicle body backplate node 4, braking transmission node 5 are collected is converted to digital quantity, and passes through the CAN network delivery to center machine node 1.
Referring to Fig. 2, described center machine node 1 comprises microprocessor 6, LCD driving circuit 7, LCD display 8, CAN transceiver 1, CAN transceiver 2 10, keyboard 11, power amplifier 12 and loudspeaker 13; Described microprocessor 6 is connected with LCD driving circuit 7, CAN transceiver 1, CAN transceiver 2 10, keyboard 11, power amplifier 12 respectively by the I/O mouth; Described LCD display 8 is connected with LCD driving circuit 7, and loudspeaker 13 is connected with power amplifier 12; Described CAN transceiver 2 10 is connected with pilothouse node 2, drive axle node 3, vehicle body backplate node 4 and braking transmission node 5.Microprocessor 6 is responsible for the data message of Coordination Treatment CAN transceiver 2 10, keyboard input, the interactive form that formation needs displays with the user by LCD display 8 and loudspeaker 13 and forms interactive interface, also sends command informations by CAN transceiver 2 10 to other 4 nodes simultaneously.
The center machine node is responsible for whole monitoring system operation control, monitoring information storage, fault distinguishing processing, Fault Identification, the demonstration of fault solution, control inquiry input, major functions such as fault history download of information interface, gateway interface is provided.Wherein electric supply system provides power supply for complete machine, microprocessor drives the LCD panel by the LCD driving circuit and shows various information, drive loudspeaker by power amplifier and send alerting signal, provide input by the keyboard connecting circuit for information inquiry, function control etc., system inserts two heterogeneous networks respectively by two CAN mouths respectively, one of them and other node form a CAN network, and another keeps for dress to submit necessary information.
Referring to Fig. 3, described pilothouse node 2, drive axle node 3, vehicle body backplate node 4, braking transmission node 5 include microprocessor 14, CAN transceiver 15, temperature sensor 16, pressure transducer 17; Described microprocessor is connected with pressure transducer 17 with temperature sensor 16 by A/D interface 18 respectively, be connected with tested switching value by universaling I/O port 19, be connected with tested interruption amount by interrupting I/O mouth 20, be connected with CAN transceiver 15 by CAN interface 21; Described CAN transceiver 15 is connected with other node.The simulating signal that microprocessor 14 provides temperature sensor 16 and pressure transducer 17 is converted to digital quantity by the inner A/D change-over circuit of processor and handles, simultaneously with universaling I/O port 19 with interrupt the digital quantity of I/O mouth 20 detected digital quantities and pass to center machine node 1 by CAN interface 21 in the lump together with temperature, pressure.
The effect of above-mentioned node is as follows:
1, the pilothouse node is responsible for functions such as the detection of pilothouse outdoor temperature, vehicle speed mileage detection record, engine speed detection and working time accumulative total, downhill retardation device status monitoring, brake pedal status monitoring, emergent steering state monitoring, and gives the center machine node with each information by the CAN network delivery;
2, the drive axle node be responsible for the monitoring of bridge temperature, left and right wheels side reducer temperature monitoring, about braking play the sheet temperature monitoring, and give the center machine node by the CAN network delivery with each information;
3, vehicle body backplate node is responsible for turning to the oil temperature in the fuel tank to monitor, turn to the interior liquid level monitoring of fuel tank, and gives the center machine node with each information by the CAN network delivery;
4, braking, transmission node are responsible for hydraulic pressure measure, the Pressure monitoring of left and right sides checking cylinder, transfer gear temperature monitoring, the monitoring of variator heating radiator oil temperature, the fuel quantity monitoring of left and right sides checking cylinder, and give the center machine node with each information by the CAN network delivery.
The above only is preferred embodiment of the present utility model, and not in order to restriction the utility model, common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacement all should be included in the protection domain of the present utility model.
Claims (3)
1, a kind of automobile chassis Fault Identification and diagnostic system is characterized in that: comprise center machine node, pilothouse node, drive axle node, vehicle body backplate node, braking transmission node, adopt the CAN bus to interconnect between each node.
2, a kind of automobile chassis Fault Identification according to claim 1 and diagnostic system, it is characterized in that: described center machine node comprises microprocessor, LCD driving circuit, LCD display, CAN transceiver one, CAN transceiver two, keyboard, power amplifier and loudspeaker; Described microprocessor is connected with LCD driving circuit, CAN transceiver one, CAN transceiver two, keyboard, power amplifier respectively by the I/O mouth; Described LCD display is connected with the LCD driving circuit, and loudspeaker is connected with power amplifier; Described CAN transceiver two is connected with pilothouse node, drive axle node, vehicle body backplate node and braking transmission node.
3, a kind of automobile chassis Fault Identification according to claim 1 and diagnostic system is characterized in that: described pilothouse node, drive axle node, vehicle body backplate node, braking transmission node include microprocessor, CAN transceiver, temperature sensor, pressure transducer; Described microprocessor is connected with pressure transducer with temperature sensor by the A/D interface respectively, is connected with tested switching value by universaling I/O port, is connected with tested interruption amount by interrupting the I/O mouth, is connected with the CAN transceiver by the CAN interface; Described CAN transceiver is connected with other node.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201912993U CN201281659Y (en) | 2008-10-08 | 2008-10-08 | System for recognizing and diagnosing automobile chassis fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201912993U CN201281659Y (en) | 2008-10-08 | 2008-10-08 | System for recognizing and diagnosing automobile chassis fault |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281659Y true CN201281659Y (en) | 2009-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201912993U Expired - Fee Related CN201281659Y (en) | 2008-10-08 | 2008-10-08 | System for recognizing and diagnosing automobile chassis fault |
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| CN (1) | CN201281659Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103538524A (en) * | 2013-10-11 | 2014-01-29 | 徐州徐工筑路机械有限公司 | Hub reduction gear real-time monitoring system of land leveler |
| CN104468175A (en) * | 2013-09-16 | 2015-03-25 | 通用汽车环球科技运作有限责任公司 | Method and apparatus for isolating a fault in a controller area network |
| CN107065647A (en) * | 2017-02-21 | 2017-08-18 | 北京航天发射技术研究所 | A kind of chassis fault diagnosis and health detecting system |
| CN110579274A (en) * | 2019-07-24 | 2019-12-17 | 广州中国科学院计算机网络信息中心 | Vehicle chassis fault sound diagnosis method and system |
| CN113628359A (en) * | 2020-05-09 | 2021-11-09 | 徐州重型机械有限公司 | Vehicle-mounted historical fault information query system and method, vehicle-mounted equipment and vehicle |
-
2008
- 2008-10-08 CN CNU2008201912993U patent/CN201281659Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104468175A (en) * | 2013-09-16 | 2015-03-25 | 通用汽车环球科技运作有限责任公司 | Method and apparatus for isolating a fault in a controller area network |
| CN104468175B (en) * | 2013-09-16 | 2019-01-22 | 通用汽车环球科技运作有限责任公司 | Method and apparatus for the failure in isolation controller lan |
| CN103538524A (en) * | 2013-10-11 | 2014-01-29 | 徐州徐工筑路机械有限公司 | Hub reduction gear real-time monitoring system of land leveler |
| CN107065647A (en) * | 2017-02-21 | 2017-08-18 | 北京航天发射技术研究所 | A kind of chassis fault diagnosis and health detecting system |
| CN110579274A (en) * | 2019-07-24 | 2019-12-17 | 广州中国科学院计算机网络信息中心 | Vehicle chassis fault sound diagnosis method and system |
| CN113628359A (en) * | 2020-05-09 | 2021-11-09 | 徐州重型机械有限公司 | Vehicle-mounted historical fault information query system and method, vehicle-mounted equipment and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20090729 Termination date: 20141008 |
|
| EXPY | Termination of patent right or utility model |