CN101986223A - Remote monitoring, diagnosis and calibration system of automobile - Google Patents
Remote monitoring, diagnosis and calibration system of automobile Download PDFInfo
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Abstract
The invention relates to a remote monitoring, diagnosis and calibration system of an automobile, which is composed of a vehicle-mounted part and an indoor part, wherein the vehicle-mounted part comprises each part of the automobile body and a vehicle-mounted signal conversion module, wherein the each part of the automobile body is connected to a CAN bus; the indoor part comprises an indoor signal conversion module, a CAN card, a computer, a monitoring system, a fault diagnosis system and a remoter calibration system, wherein the indoor signal conversion module is connected with the CAN card; and the CAN card, monitoring system, fault diagnosis system and remoter calibration system are connected with a computer, and the indoor signal conversion module is in communication linkage with the vehicle-mounted signal conversion module by GPRS network. When applied in vehicle tests, the whole set of system can greatly save test manpower, material resources and financial resources, can comprehensively analyze automobile condition indoors, analyze and process faults, revise parameters to realize remote calibration, is favourable for comprehensively analyzing the working condition of the vehicle for vehicle design personnel to determine a calibration scheme so as to furthest optimize the performance of the finished automobile.
Description
Technical field
The present invention relates to a kind of detection and diagnostic device of automotive performance, relate in particular to a kind of remote monitoring, diagnosis and calibration system of automobile.
Background technology
In recent years, the more anxiety of energy situation, automobile industry has to develop new vehicle to tackle this kind situation, so mixed power electric car arises at the historic moment.But because the power system complex structure of mixed power electric car, comprise entire car controller, drive motor, ISG motor, electrokinetic cell, engine or the like, therefore need to carry out a large amount of tests in test, fault diagnosis and the calibration process, comprise extensive works such as too false demarcation, basis are demarcated, " high temperature, plateau, high and cold " three high tests in this process of the test, these need of work cost lot of manpower and material resources are gone participation.In addition, in carrying out permanance and fail-test, need many cars to test simultaneously, can't control vehicle condition in real time, can't write down the experimental data under the different operating modes, bring sizable inconvenience, delay the research and development progress to research work.
Open day be that a kind of remote diagnosis method for vehicle fault and the vehicle-mounted intelligent end device thereof that Dec 9, publication number in 2009 are CN101598943 discloses such technical scheme: it is provided with control center, control center comprises computer server, the vehicle diagnosis expert, the automobile information database, and in user's vehicle, vehicle intelligent terminal is installed, after the diagnostic trouble code and data stream of vehicle intelligent terminal automobile, be delivered to control center by public wireless communication network, control center transmits diagnostic result on the vehicle intelligent terminal by public wireless communication network and shows.This invention is when automobile breaks down, connect vehicle-mounted vehicle diagnosis unit by communication network, the vehicle diagnosis unit is with diagnostic trouble code, relevant informations such as data stream pass to control center, through expert system analysis, or through the auto repair analysis expert of expert's seat of control center, provide failure cause, thereby help the automobile driver to carry out the maintenance of automobile, solve the vehicle failure problem, but still there is shortcoming in this technical scheme, though this system can realize the remote diagnosis of vehicle problem, but implementation method complexity, and only the repairing by human pilot can not realize that the best of vehicle repairs, and lacks the parameter optimization to vehicle assembly, and the usability of vehicle can not be protected.
Summary of the invention
The invention provides a kind of automobile remote monitoring, diagnosis and calibration system, by the cab signal modular converter is set at vehicle interior, feed back the bus signals of vehicle in real time, by test vehicle being carried out remote monitoring, realize remote diagnosis and calibrating function again at the set supervisory system in office center, fault diagnosis system and calibration system.
For achieving the above object, the invention provides such technical scheme:
A kind of automobile remote monitoring, diagnosis and calibration system, it is made up of vehicle-mounted part and indoor section two parts, vehicle-mounted part comprises each assembly of vehicle body that is connected on the CAN bus, the cab signal modular converter, indoor section comprises the indoor signal modular converter, the CAN card, computing machine, supervisory system, fault diagnosis system and long-range calibration system, the indoor signal modular converter links to each other with the CAN card, described CAN card, supervisory system, fault diagnosis system, long-range calibration system all links to each other with computing machine, and described cab signal modular converter and indoor signal modular converter communicate to connect by GPRS network.
The cab signal modular converter is monitored the CAN bus signals and is converted into the GPRS signal and sends on the GPRS network, and the indoor signal modular converter receives the GPRS signal and is translated into the CAN bus signals from GPRS network, reach computing machine through the CAN card, observe the transport condition of vehicle and the working condition of each assembly of vehicle body by the supervisory system that links to each other with computing machine then, the content of the CAN bus signals that returns by the fault diagnosis system analysis that links to each other with computing machine, the vehicle body working condition is done more careful analysis, analysis result based on fault diagnosis system, the calibration system that links to each other with computing machine sends to demarcate and instructs the CAN card, this demarcation instruction is converted to the GPRS signal via the indoor signal modular converter and sends on the GPRS network, the cab signal modular converter receives the GPRS signal and is translated into each node that sends to vehicle after demarcation is instructed from GPRS network again, each node is again according to instruction, upload and revise the signal parameter of self, realize long-range demarcation.
For technique scheme, we also have further prioritization scheme:
As optimization, the cab signal modular converter comprises CAN transceiver module, CPU processor, GPRS module, SIM card and GPRS antenna, the cascade and realize two-way communication successively of CAN transceiver module, CPU processor, GPRS module, SIM card is arranged in the GPRS module, and the GPRS antenna links to each other with the GPRS module.The CAN transceiver module is realized collection and the parameter change to the CAN bus signals of vehicle, and the CPU processor is realized the conversion between CAN bus signals and GPRS signal, and GPRS module, SIM card and GPRS antenna three cooperate transmission and the reception of realization to the GPRS signal.
As optimization, the indoor signal modular converter comprises CPU processor, GPRS module, SIM card and GPRS antenna, and CPU processor, the cascade of GPRS module also realize two-way communication, and SIM card is arranged in the GPRS module, and the GPRS antenna links to each other with the GPRS module.GPRS module, SIM card and GPRS antenna three cooperate transmission and the reception of realization to the GPRS signal, and the CPU processor is realized the conversion between CAN bus signals and GPRS signal.
As optimization, the CAN snap gauge is intended the function of car body controller, simulation reconstruction vehicle body status information.Realize the simulation of car body controller at indoor CAN card, make the rear end, reduce error rate car status information being shown, during action such as preservation, diagnosis, can accomplishing more intuitively.
As optimization, supervisory system is based on the system of LABVIEW platform, is used for showing in real time and preserving the CAN bus signals of receiving from the CAN clamping.This system shows the status information of test vehicle in real time, and data are preserved, and is convenient to the data processing and the analysis in later stage.
As optimization, fault diagnosis system comprises failure diagnostic apparatus, is used to read the car status information that supervisory system is returned, diagnostic trouble code and the freeze frame of reading and saving in each nodal information, and analysis of failure is also handled.This system is by the fault diagnosis agreement of standard, and the reason that the remote analysis fault sends is handled fault, realizes removing the purpose of diagnostic trouble code and freeze frame.
As optimization, long-range calibration system comprises calibration tool and calibration software, diagnostic message according to fault diagnosis system is returned sends calibration information to the CAN card by the calibration software that is arranged in the computing machine, and described CAN card output CAN signal changes into the GPRS signal to the indoor signal modular converter.The analysis result that calibration system returns according to fault diagnosis system sends demarcates instruction, after being converted into the GPRS signal, the demarcation instruction of being sent re-sends in the GPRS network, test vehicle receives the GPRS signal and it is reduced to the CAN bus signals from GPRS network by the cab signal modular converter, after this CAN bus signals is sent to each assembly of vehicle body, each assembly is promptly according to instruction, upload and revise the signal parameter of self, finally realize long-range demarcation.
As optimization, supervisory system, fault diagnosis system and long-range calibration system all can use separately, also can cooperate as combined system and come into operation.
As optimization, each assembly of vehicle body that is connected the CAN bus comprises entire car controller, drive motor controller, ISG electric machine controller, power battery management system, engine EMS, charging set controller and many information display systems.
Compared with prior art, the invention has the advantages that: one-piece construction of the present invention is simple, it is clear that implementation method is understood, realize the collection of vehicle CAN bus signal and convert the GPRS signal to sending by the cab signal modular converter, and the indoor signal modular converter is receiving above-mentioned GPRS signal and is converting the CAN signal to, resulting CAN signal is intended vehicle control device by the CAN snap gauge again at indoor section, passes through supervisory system then, diagnostic system, calibration system is monitored car status information respectively, data processing and analysis and fault diagnosis, carrying out parameter optimization and fault gets rid of.This whole system is applied in the vehicle test, can save the human and material resources and the financial resources of test greatly, can be in the indoor synthetic analysis vehicle condition, carry out analyzing and processing at fault, carry out parameter modification then and realize long-range demarcation, help vehicle designer analysis-by-synthesis vehicle operation situation and determine the demarcation scheme, thereby optimize vehicle performance to greatest extent.
Description of drawings
Fig. 1 is a system principle diagram of the present invention;
Fig. 2 is a cab signal modular converter structured flowchart of the present invention;
Fig. 3 is an indoor signal modular converter structured flowchart of the present invention.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Testing vehicle is a hybrid vehicle, and the CAN communication protocol of vehicle by standard realizes the total line traffic control of CAN, has adopted the CAN bus to realize data communication between automotive interior control system and each detection and topworks.As shown in Figure 1, automobile remote monitoring of the present invention, diagnosis and calibration system are divided into vehicle-mounted part and indoor section two parts.Above-mentioned vehicle-mounted part mainly comprises cab signal modular converter 1, this cab signal modular converter 1 is connected on the CAN bus 2 of automobile, in addition, each assembly of vehicle body all is connected on the CAN bus 2, and assembly comprises automobile topworkies such as entire car controller 15, drive motor controller 12, ISG electric machine controller 10, power battery management system 13, engine EMS11, charging set controller 14 and many information display systems 16.
As shown in Figure 2, cab signal modular converter 1 comprises CAN transceiver module 11, CPU processor 12, GPRS module 13, SIM card 15 and GPRS antenna 14, the cascade and realize two-way communication successively of CAN transceiver module 11, CPU processor 12, GPRS module 13, CAN transceiver module 11, CPU processor 12, GPRS module 13 all link to each other with vehicle-mounted power supply 16, be provided with SIM card 15 in GPRS module 13, described GPRS antenna 14 links to each other with GPRS module 13.
As shown in Figure 1, be provided with indoor signal modular converter 4, CAN card 5, computing machine 6, supervisory system 7, fault diagnosis system 8 and long-range calibration system 9 at indoor section, indoor signal modular converter 4 links to each other with CAN card 5, CAN card 5 links to each other with computing machine 6 again, also is connected with supervisory system 7, fault diagnosis system 8 and long-range calibration system 9 on the computing machine 6.As shown in Figure 3, described indoor modular converter comprises CPU processor 41, GPRS module 42, SIM card 44 and GPRS antenna 43, CPU processor 41 is with 42 cascades of GPRS module and realize two-way communication, is provided with SIM card 44 in GPRS module 42, and GPRS module 42 links to each other with GPRS antenna 43 again.Above-mentioned indoor signal modular converter 4 links to each other with CAN card 5 again, and CAN card 5 links to each other with indoor computing machine 6, also is connected with supervisory system 7, fault diagnosis system 8 and long-range calibration system 9 on the computing machine 6.
Fault diagnosis system 8 comprises failure diagnostic apparatus, fault diagnosis agreement by standard, read the information of vehicles that is returned, analyze diagnostic trouble code and freeze frame in each nodal information of vehicle, the reason that the remote analysis vehicle trouble sends, thereby fault is handled, realized removing the function of diagnostic trouble code and freeze frame.
Long-range calibration system 9 is the VISION calibration system, and described system is made up of hardware and software two parts.VISION inserts computing machine 6 by USB interface, and the CCP agreement is supported in the serial data communication of VISION.On computing machine 6, open calibration software, on CAN card 5, send calibration information, thereby vehicle is realized the parameter modification to each assembly of vehicle body after receiving calibration information from GPRS network 3, realize indoor long-range demarcation to vehicle by calibration software.
The whole system operation flow process can reduce:
At first in vehicle-mounted part, CAN transceiver module 11 in the cab signal modular converter 1 is gathered the CAN bus signals from CAN bus 2, above-mentioned CAN bus signals comprises the instruction and the parameter of each assembly of vehicle body, the CAN bus signals that is collected sends to CPU processor 12, CPU processor 12 unpacks the CAN bus signals and analyze, be translated into GPRS signal and packing then, the GPRS module 13 that the rear end links to each other with CPU processor 12 is sent to GPRS network 3 by GPRS antenna 14 with above-mentioned GPRS packet.
Then at the indoor section of office, GPRS module 13 in the indoor signal modular converter 4 receives the GPRS packet by GPRS antenna 14 from GPRS network 3, the CPU processor 12 that links to each other with GPRS module 13 unpacks this GPRS packet and analyze, and is translated into the CAN bus signals then.
Send into the CAN card 5 of rear end, the work information of CAN card 5 simulation reduction vehicles from the CAN bus signals of indoor signal modular converter 4 output.Can learn work information in the test vehicle with the information in the supervisory system 7 monitoring CAN cards 5 that are connected on the computing machine 6 that CAN card 5 links to each other.Fault diagnosis system 8 is removed diagnostic trouble code and freeze frame based on the remote diagnosis of this monitored results realization to vehicle trouble.Long-range calibration system 9 is by set calibration software in the computing machine 6, send to demarcate and to instruct CAN card 5, after CAN card 5 receives this demarcation instruction, to demarcate instruction sends in the indoor signal modular converter 4, CPU processor 41 in the indoor signal modular converter 4 unpacks this demarcation instruction and analyze, be translated into GPRS signal and packing then, the GPRS module 42 that the rear end links to each other with CPU processor 41 is sent to GPRS network 3 by GPRS antenna 43 with above-mentioned GPRS packet.
In vehicle-mounted part, GPRS module 13 in the cab signal modular converter 1 receives the GPRS packet of demarcating instruction from GPRS network 3 by GPRS antenna 14, the CPU processor 12 that links to each other with GPRS module 13 unpacks this GPRS packet and analyze, change into CAN bus signals packet then, this CAN bus signals packet is sent on the CAN bus 2 by CAN transceiver module 11 subsequently, be connected on CAN bus 2 each node body component receive demarcate instruction after, again according to demarcating instruction, upload and revise the signal parameter of self, realization is to the optimization and the upgrading of body component function, thereby realizes long-range demarcation.
So, this system can realize the functions such as monitoring, diagnosis and calibration system for automobile.
Claims (9)
1. automobile remote monitoring, diagnosis and calibration system, it is characterized in that, it is made up of vehicle-mounted part and indoor section two parts, vehicle-mounted part comprises the body component that is connected on the CAN bus, the cab signal modular converter, indoor section comprises the indoor signal modular converter, the CAN card, computing machine, supervisory system, fault diagnosis system and long-range calibration system, described indoor signal modular converter links to each other with described CAN card, described CAN card, all link to each other with computing machine, described cab signal modular converter and indoor signal modular converter communicate to connect by GPRS network.
2. automobile remote monitoring according to claim 1, diagnosis and calibration system, it is characterized in that, described cab signal modular converter comprises CAN transceiver module, CPU processor, GPRS module, SIM card and GPRS antenna, the cascade and realize two-way communication successively of CAN transceiver module, CPU processor, GPRS module, described SIM card is arranged in the GPRS module, and described GPRS antenna links to each other with the GPRS module.
3. automobile remote monitoring according to claim 1, diagnosis and calibration system, it is characterized in that, described indoor signal modular converter comprises CPU processor, GPRS module, SIM card and GPRS antenna, CPU processor, the cascade of GPRS module realize two-way communication, described SIM card is arranged in the GPRS module, and described GPRS antenna links to each other with the GPRS module.
4. automobile remote monitoring according to claim 1, diagnosis and calibration system is characterized in that, described CAN snap gauge is intended the function of car body controller, simulation reconstruction vehicle body status information.
5. automobile remote monitoring according to claim 1, diagnosis and calibration system is characterized in that described supervisory system is based on the system of LABVIEW platform, are used for showing in real time and preserving the CAN bus signals of receiving from the CAN clamping.
6. automobile remote monitoring according to claim 1, diagnosis and calibration system, it is characterized in that, described fault diagnosis system is used to read the car status information that supervisory system is returned, diagnostic trouble code and the freeze frame of reading and saving in nodal information, and analysis of failure is also handled.
7. automobile remote monitoring according to claim 1, diagnosis and calibration system, it is characterized in that, described long-range calibration system comprises calibration tool and calibration software, the diagnostic message of returning according to fault diagnosis system, send calibration information to the CAN card by the calibration software that is arranged in the computing machine, described CAN card output CAN signal changes into the GPRS signal to the indoor signal modular converter.
8. according to claim 4 or 5 or 6 described automobile remote monitorings, diagnosis and calibration system, it is characterized in that, but all individualism uses of described supervisory system, fault diagnosis system and long-range calibration system also can cooperate as combined system and come into operation.
9. automobile remote monitoring according to claim 1, diagnosis and calibration system, it is characterized in that the body component of the described CAN of being connected bus comprises entire car controller, drive motor controller, ISG electric machine controller, power battery management system, engine EMS, charging set controller and many information display systems.
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Application publication date: 20110316 |