CN106569451A - Automobile fault diagnosis system and automobile fault diagnosis method based on vehicle-mounted sound host - Google Patents
Automobile fault diagnosis system and automobile fault diagnosis method based on vehicle-mounted sound host Download PDFInfo
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
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- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
The invention provides an automobile fault diagnosis system and an automobile fault diagnosis method based on a vehicle-mounted sound host. The vehicle-mounted sound host comprises a central processor, an input/output device and a CAN transceiver. The input/output device is used for inputting a diagnosis starting signal to the central processor and outputting a diagnosis result obtained after analysis of the central processor; the central processor is used for starting a diagnosis process according to the diagnosis starting signal provided by the input/output device, and sending the diagnosis process to a vehicle-mounted CAN bus network through the CAN transceiver; and a device to be diagnosed receives the diagnosis process through the vehicle-mounted CAN bus network, and feeds back the diagnosis result obtained after carrying out fault diagnosis based on the diagnosis process to the central processor through the vehicle-mounted CAN bus network and the CAN transceiver. The system and method, by making full utilization of the functions of visual display, man-machine interaction, safety verification and convenient operation and the like of the sound host, solve the defect that an existing automobile fault diagnosis system needs to be provided with a special device, and facilitate fault diagnosis operation and result display.
Description
Technical field
The invention belongs to automobile audio exploitation and fault diagnosis field, and in particular to a kind of vapour based on vehicle-mounted audio host
Car fault diagnosis system and Diagnosis method of automobile faults.
Background technology
With the continuous progress of automobile audio technology, the configuration of main system of audio also more and more higher, bluetooth interconnection, large-size screen monitors show
Become increasingly popular, but the main system of audio in existing vehicle is mainly as music, a kind of vehicle entertainment system of video is played, not
In participating in the control of the systems such as car fault diagnosis.Car fault diagnosis technology is also evolving in prior art, occurs
Based on various diagnosis principles and the OBD technology of Control on Communication, such as Chinese patent CN103713625A provides a kind of vehicle-mounted
Fault diagnosis system, including vehicle mounted failure detector unit, remote fault analysis service end, failure emergency unit and hand-held failure
Terminal is consulted, the Telematics research on remote fault diagnosis technology being keen to also is compared in the market, but existing all kinds of
In diagnostic techniquess, vehicle audio is at most intended only as the display screen for aiding in and occurs.Not yet occur with sound equipment in prior art
Main frame does not make full use of configuration to get over as the fault diagnosis system of onboard diagnostic device main body in vehicle-mounted fault diagnosis system yet
Carry out the correlation function of higher vehicle-mounted audio host.
The content of the invention
The present invention is based on above-mentioned prior art problem, and a kind of vehicle failure based on vehicle-mounted audio host of proposition of innovation is examined
Disconnected system and Diagnosis method of automobile faults, first using vehicle-mounted audio host as onboard diagnostic device main body, by being equipped with sound equipment
The correlation function of main frame, makes full use of the display directly perceived of main system of audio, man-machine interaction, safety to test in vehicle fault diagnosis system
The functions such as card, simple operation, solving existing vehicle breakdown diagnostic system needs the drawbacks of configuring special failure diagnosis apparatus, drop
Low diagnostic system development cost, while taking full advantage of the configuration resource of main system of audio, enriches vehicle-mounted audio host function,
And facilitate car fault diagnosis operation and result show, with wide popularizing application prospect.
The technical scheme that present invention solution above-mentioned technical problem is taken is as follows：
A kind of vehicle fault diagnosis system based on vehicle-mounted audio host, including：Vehicle-mounted audio host 2, the vehicle audio master
Machine 2 has the fault diagnosis control function initiated diagnostic process and collect diagnostic result.
Further according to vehicle fault diagnosis system of the present invention, wherein the vehicle-mounted audio host 2 includes：In
Central processor 3, input-output apparatus and CAN transceiver 4, the input-output apparatus and CAN transceiver 4 be connected to it is described in
Central processor 3, the CAN transceiver 4 is connected to vehicle-mounted CAN bus network 7, and the input-output apparatus are used for centre
The reason input of device 3 diagnosis enabling signal simultaneously exports the diagnostic result after central processing unit 3 is parsed, and the central processing unit 3 is according to defeated
Enter/the diagnosis enabling signal that provides of outut device initiates diagnostic process, and sent to vehicle-mounted CAN bus network by CAN transceiver 4
Network 7, treats that diagnostic device receives diagnostic process by vehicle-mounted CAN bus network 7, and will be carried out after fault diagnosis based on diagnostic process
Diagnostic result central processing unit 3, the central processing unit 3 pairs are fed back to by vehicle-mounted CAN bus network 7 and CAN transceiver 4
Diagnostic result is exported to the input-output apparatus after being parsed.
Further according to vehicle fault diagnosis system of the present invention, wherein being preset with the central processing unit 3
Each treats the diagnostic process of diagnostic device, and the input-output apparatus to the input of central processing unit 3 treats that the diagnosis of diagnostic device is opened
After dynamic signal, the central processing unit 3 transfers correspondence and treats the diagnostic process of diagnostic device, and by CAN transceiver 4 and vehicle-mounted
CAN network 7 by diagnostic process be sent to it is corresponding treat diagnostic device, treat that diagnostic device carries out self-diagnosis of trouble according to diagnostic process
It is disconnected, and it is supplied to central processing unit 3, the central authorities to process by vehicle-mounted CAN bus network 7 and CAN transceiver 4 diagnostic result
Device 3 is exported to the input-output apparatus after parsing to diagnostic result.
Further according to vehicle fault diagnosis system of the present invention, wherein the disconnected equipment of the follow-up includes that each is controlled
Device processed, each controller is connected to vehicle-mounted CAN bus network 7 by control node, and can be from vehicle-mounted CAN bus network 7
The diagnostic process of itself is obtained, while the diagnostic result of itself can be fed back to into vehicle-mounted CAN bus network 7.
Further according to vehicle fault diagnosis system of the present invention, wherein the input-output apparatus include indigo plant
Tooth module 5, the bluetooth module 5 is connected to the central processing unit 3, and the bluetooth module 5 can be with subscriber terminal equipment
Carry out wireless interconnected.
Further according to vehicle fault diagnosis system of the present invention, wherein the subscriber terminal equipment is to be provided with
The mobile phone 1 of fault diagnosis APP, is disposed with each diagnosis for treating diagnostic device and opens in the diagnostic operation/display interface of the mobile phone 1
Cardon mark, selecting the diagnosis to start icon can be input into the diagnosis enabling signal that correspondence treats diagnostic device to central processing unit 3,
Correspondence after the central processing unit 3 is parsed treats that the diagnostic result of diagnostic device passes through the diagnostic operation/display circle of the mobile phone 1
Face is shown.
Further according to vehicle fault diagnosis system of the present invention, wherein the subscriber terminal equipment and long-range clothes
Business device 10 is wireless interconnected, and sends diagnostic result to remote server 10 by wireless network, while can be by remote service
The data feedback of the transmission of device 10 is to central processing unit 3.
Further according to vehicle fault diagnosis system of the present invention, wherein the input-output apparatus include touching
Display module 6 is touched, the touch display module 6 is connected to the central processing unit 3, the diagnosis behaviour of the touch display module 6
Each diagnosis for treating diagnostic device is disposed with work/display interface and starts icon, selecting the diagnosis to start icon can be in
The input correspondence of central processor 3 treats the diagnosis enabling signal of diagnostic device, and the correspondence after the central processing unit 3 is parsed treats that diagnosis sets
Standby diagnostic result is shown by the diagnostic operation/display interface of the touch display module 6.
A kind of Diagnosis method of automobile faults carried out based on vehicle fault diagnosis system of the present invention, wherein the automobile
Method for diagnosing faults is comprised the following steps：
（1）Car owner enters the diagnostic operation/display interface of mobile phone, and selects the diagnosis for treating diagnostic device to start icon；
（2）The diagnosis enabling signal that correspondence treats diagnostic device is input into central processing unit by bluetooth module from mobile phone；
（3）The central controller transfers that correspondence treats the diagnostic process of diagnostic device and to be sent to vehicle-mounted CAN by CAN transceiver total
Gauze network；
（4）Treat that diagnostic device receives diagnostic process and carries out self-diagnosis of trouble based on diagnostic process by vehicle-mounted CAN bus network
It is disconnected；
（5）Diagnostic result is fed back to into vehicle-mounted CAN bus network after diagnostic device completes fault diagnosis；
（6）The central controller obtains the diagnostic result for treating diagnostic device from vehicle-mounted CAN bus network by CAN transceiver
And parsed；
（7）The central processing unit exports the diagnostic result after parsing to mobile phone by bluetooth module；
（8）The diagnostic result for treating diagnostic device is shown by the diagnostic operation/display interface of mobile phone.
A kind of Diagnosis method of automobile faults carried out based on vehicle fault diagnosis system of the present invention, wherein the automobile
Method for diagnosing faults is comprised the following steps：
（1）Car owner enters the diagnostic operation/display interface of touch display module, and selects to treat the diagnosis startup figure of diagnostic device
Mark；
（2）The diagnosis enabling signal that correspondence treats diagnostic device is input into from touch display module to central processing unit；
（3）The central controller transfers that correspondence treats the diagnostic process of diagnostic device and to be sent to vehicle-mounted CAN by CAN transceiver total
Gauze network；
（4）Treat that diagnostic device receives diagnostic process and carries out self-diagnosis of trouble based on diagnostic process by vehicle-mounted CAN bus network
It is disconnected；
（5）Diagnostic result is fed back to into vehicle-mounted CAN bus network after diagnostic device completes fault diagnosis；
（6）The central controller obtains the diagnostic result for treating diagnostic device from vehicle-mounted CAN bus network by CAN transceiver
And parsed；
（7）The central processing unit exports the diagnostic result after parsing to touch display module；
（8）The diagnostic result for treating diagnostic device is shown by the diagnostic operation/display interface of touch display module.
Following technique effect can at least be reached by technical scheme：
1）, innovate first vehicle-mounted audio host and vehicle breakdown diagnostic system are combined together of the present invention, propose a kind of complete
The vehicle fault diagnosis system based on vehicle-mounted audio host newly and method, not only eliminate matching somebody with somebody for special failure diagnosis apparatus
Put, and make use of main system of audio resource well, reduce diagnostic system development cost；
2）, vehicle fault diagnosis system of the present invention based on main system of audio touch display screen implement diagnostic operation, improve
The convenience of diagnostic operation, the touch display screen based on main system of audio carries out diagnostic result and shows, more directly perceived to diagnosis knot
The reading of fruit, while the radio communication function that can be based on main system of audio is realized being interacted with the diagnosis of remote server, improves
Fault diagnosis disposal ability；
3）, the present invention take full advantage of main system of audio the particular advantages of convenient man-machine interaction can be provided, by main system of audio
Correlation function configured, and the characteristics of all possess fault diagnosis functions with reference to each function control device of car load, then by sound equipment
The vehicle-mounted CAN bus network system of main frame itself and the gateway system of car load showing the diagnostic result to each controller,
Provide that a kind of diagnostic operation is eased on the basis of any hardware cost is not increased, diagnostic result shows more intuitively,
The more perfect vehicle fault diagnosis system of diagnostic result process, while the extendable functions based on main system of audio, by bluetooth
Realize main system of audio and the interconnection of mobile phone, realize being interacted with remote server by installing corresponding App on mobile phone, it is not only rich
The rich operating function of vehicle fault diagnosis system, and its trouble diagnosibility is improve, belong to vehicle mounted failure of new generation and examine
Pregnancy ceased product, wide market.
Description of the drawings
Accompanying drawing 1 is the structure principle chart of the first preferred implementation of vehicle fault diagnosis system of the present invention；
Accompanying drawing 2 is the structure principle chart of the second preferred implementation of vehicle fault diagnosis system of the present invention；
Accompanying drawing 3 is the structure principle chart of the 3rd preferred implementation of vehicle fault diagnosis system of the present invention；
The implication of each reference is as follows in figure：
1- mobile phones, 2- main systems of audio, 3- central processing units, 4-CAN transceivers, 5- bluetooth modules, 6- touch display modules, 7- cars
Carry CAN network, 8- electronic control units 1,9- electronic control units 2,10- remote servers.
Specific embodiment
Technical scheme is described in detail below in conjunction with accompanying drawing, so that those skilled in the art can be more
Plus the present invention is clearly understood from, but therefore do not limit the scope of the invention.
Vehicle fault diagnosis system based on vehicle-mounted audio host of the present invention includes vehicle-mounted audio host 2, described
Main system of audio will include bluetooth module, in needs control large-size screen monitors to support man-machine interactive operation, with driver and crew's bluetooth equipment
Communication, safety verification, the control function for initiating diagnostic process, collection fault message and display diagnostic result.The specific car
Carrying main system of audio 2 at least includes central processing unit 3, input-output apparatus and CAN transceiver 4, and the input-output apparatus are excellent
Choosing for bluetooth module 5 and/or touch display module 6, the bluetooth module 5, CAN transceiver 4 and touch display module 6 connect
The central processing unit 3 is connected to, the bluetooth module 5 carries out radio communication with the grade subscriber terminal equipment of mobile phone 1, also can be input into/
Outut device；The touch display module 6 is preferably LCDs, with input and output function, the CAN transceiver
4 are connected to vehicle-mounted CAN bus network 7.Described bluetooth module 5 is preferably the version that bluetooth core agreement is 4.1；The car
Carry CAN network 7 and belong to car load network system, there is provided main system of audio be diagnosed the physical link that links between controller,
The transmission of responsible information；
The mainly initiation of responsible diagnostic process and the process of diagnostic result of described main system of audio 2, and be responsible for showing diagnostic result
Illustrate and, the specific main system of audio 2 includes input-output apparatus, and preferably above-mentioned touch display module 6 passes through
Touch display module 6 carries out diagnosing start-up operation and diagnostic result shows that the preset in advance of the touch display module 6 has can be real
The corresponding diagnosis of each controller for applying fault diagnosis starts icon, selects needs to carry out event in the touch display module 6
When the diagnosis of the controller of barrier diagnosis starts icon, touch display module 6 generates the diagnosis enabling signal of the controller and is input into
To the central processing unit 3 of main system of audio；Each controller that can implement fault diagnosis is prestored in the central processing unit 3
Diagnostic process, when the diagnosis enabling signal of a certain controller of the input of touch display module 6 is received, the central processing unit is adjusted
Take the corresponding diagnostic process of the controller and sent to vehicle-mounted CAN bus network 7 by CAN transceiver 4；Each control of vehicle body
Device processed is by corresponding control node（Such as electronic control unit）It is all connected to vehicle-mounted CAN bus network 7, and can be from vehicle-mounted
One's own diagnostic process is received on CAN network, after controller receives one's own diagnostic process, startup is examined
Disconnected program carries out Self-Test Diagnostics, and diagnostic result is fed back to into vehicle-mounted CAN bus network 7, vehicle-mounted CAN bus after the completion of diagnosis
The diagnostic result that network feeds back controller is supplied to central processing unit 3, the central processing unit 3 pairs to examine by CAN transceiver 4
Disconnected result exports to input-output apparatus the display for carrying out diagnostic result after being parsed.It is of the present invention based on vehicle audio
The diagnostic workflow of the vehicle fault diagnosis system of main frame is specifically included：
1）Car owner enters main system of audio diagnostic operation inputting interface；
2）The diagnosis of the controller that selection will be diagnosed starts icon；
3）Main system of audio initiates the diagnostic process of correspondence controller to vehicle-mounted CAN bus network；
4）Correspondence controller is received by vehicle-mounted CAN bus network and carry out after diagnostic process Self-Test Diagnostics；
5）It is diagnosed controller to complete to feed back diagnostic result to main system of audio by vehicle-mounted CAN bus network after fault diagnosis；
6）Main system of audio parses diagnostic result and exports diagnostic result.
Described input-output apparatus can have various ways, can be bluetooth equipment or touch display screen, also can wrap simultaneously
Include bluetooth equipment and touch display screen.Described input-output apparatus further can will diagnose knot by user terminal such as mobile phone
Fruit is sent to remote server so that fault diagnosis system of the present invention has the ability interacted with remote server.Under
Face describes the preferred reality of the present invention under various input-output apparatus forms in detail by first embodiment to the 3rd embodiment
Mode is applied, each embodiment is within the range of the technology design of the invention described above.
First preferred implementation
As shown in Figure 1, the described vehicle fault diagnosis system based on vehicle-mounted audio host includes main system of audio 2, described
Main system of audio includes central processing unit 3, CAN transceiver 4, bluetooth module 5 and touch display module 6, the CAN transceiver 4, indigo plant
Tooth module 5 and touch display module 6 are connected to the central processing unit 3, and the CAN transceiver 4 is connected to vehicle-mounted CAN bus network
Network.Described touch display module 6 has input and output function simultaneously, and input therein is based on touch screen touch input reality
It is existing, the corresponding diagnosis of each controller is provided with the touch screen of touch display module 6 and starts icon；Described bluetooth module
5 are capable of achieving the communication with the subscriber terminal equipment such as mobile phone, the extensive diagnostic result way of output as outut device.Described electronics
Control unit 8, electronic control unit 9 are used as being diagnosed the network node connection unit of controller, that is, are diagnosed controller
Vehicle-mounted CAN bus network is can be directly connected to, also can be by the way that some generic controller unifications be passed through into an electronics control
Unit processed is connected to vehicle-mounted CAN bus network, and these forms do not affect the data transfer of controller and vehicle-mounted CAN bus network,
And be not limited.
The fault diagnosis flow scheme of the first preferred implementation is：
1）Car owner enters diagnostic operation interface by the touch display module 6 of main system of audio；
2）The diagnosis that the controller to be diagnosed is selected in the diagnostic operation interface of touch display module 6 starts icon；
3）Touch display module 6 is input into the diagnosis enabling signal of correspondence controller to central processing unit；
4）Central controller transfers the diagnostic process of correspondence controller and is sent to CAN transceiver；
5）CAN transceiver sends the diagnostic process of correspondence controller to vehicle-mounted CAN bus network；
6）Correspondence controller is received by vehicle-mounted CAN bus network and carry out after diagnostic process Self-Test Diagnostics；
7）Correspondence controller completes that diagnostic result is fed back to into vehicle-mounted CAN bus network after fault diagnosis；
8）CAN transceiver is extracted from vehicle-mounted CAN bus network the diagnostic result of correspondence controller feedback and is provided it to
Central processor；
9）Central processing unit exports diagnostic result to touch display module after parsing to diagnostic result, and directly perceived display is examined
Disconnected result；
10）Further preferred central processing unit exports the diagnostic result after parsing to bluetooth module, again will by bluetooth module
Diagnostic result is sent to car owner's terminal unit such as mobile phone by communication.
Second preferred implementation
As shown in Figure 2, the described vehicle fault diagnosis system based on vehicle-mounted audio host includes main system of audio 2 and mobile phone 1,
Described main system of audio includes central processing unit 3, CAN transceiver 4 and bluetooth module 5, the CAN transceiver 4 and bluetooth module 5
The central processing unit 3 is connected to, the CAN transceiver 4 is connected to vehicle-mounted CAN bus network.Described bluetooth module 5 and handss
Machine 1 constitutes input-output apparatus, and wherein, by wireless connection, present embodiment is applied to what letter was matched somebody with somebody for bluetooth module 5 and mobile phone 1
Vehicle, when such as main system of audio is not equipped with display screen, can replace display screen, by installing special on mobile phone by mobile phone
App（Start icon with controller diagnosis）Realize that fault diagnosis operation and diagnostic result show that mobile phone is used as input operation
With the terminal unit of output display, and bluetooth module is used as data input/output communication equipment, and other equipment is with the first embodiment party
Formula.
The fault diagnosis flow scheme of the second preferred implementation is：
1）Car owner enters diagnostic operation interface by mobile phone A PP；
2）The diagnosis that the controller to be diagnosed is selected in the diagnostic operation interface of mobile phone A PP starts icon；
3）Mobile phone 1 is input into the diagnosis enabling signal of correspondence controller by bluetooth module 5 to central processing unit；
4）Central controller transfers the diagnostic process of correspondence controller and is sent to CAN transceiver；
5）CAN transceiver sends the diagnostic process of correspondence controller to vehicle-mounted CAN bus network；
6）Correspondence controller is received by vehicle-mounted CAN bus network and carry out after diagnostic process Self-Test Diagnostics；
7）Correspondence controller completes that diagnostic result is fed back to into vehicle-mounted CAN bus network after fault diagnosis；
8）CAN transceiver is extracted from vehicle-mounted CAN bus network the diagnostic result of correspondence controller feedback and is provided it to
Central processor；
9）Diagnostic result is supplied to bluetooth module by central processing unit after parsing to diagnostic result；
10）Diagnostic result is radioed to into mobile phone by bluetooth module, diagnostic result is intuitively shown by mobile phone screen.
3rd preferred implementation
As shown in Figure 3, the described vehicle fault diagnosis system based on vehicle-mounted audio host include main system of audio 2, mobile phone 1 with
And remote server 10, described main system of audio is including central processing unit 3, CAN transceiver 4, bluetooth module 5 and touch display mould
Block 6, the CAN transceiver 4, bluetooth module 5 and touch display module 6 are connected to the central processing unit 3, the CAN transmitting-receivings
Device 4 is connected to vehicle-mounted CAN bus network.Described touch display module 6 has input and output function, input therein simultaneously
Realized by touch screen, the corresponding diagnosis of each controller is provided with the touch screen of touch display module 6 and starts icon.Together
Shi Suoshu bluetooth modules 5 also can constitute the second input-output apparatus with mobile phone 1, and special App is installed on mobile phone（With control
Device diagnosis processed starts icon）Realize that fault diagnosis operation, diagnostic result show and far-distance communication service, user can be defeated by mobile phone
Enter and diagnose start-up operation, diagnostic result is also exportable to be displayed on mobile phone（Mobile phone can be aobvious as a kind of auxiliary in present embodiment
Show instrument）, bluetooth module is used as data transfer communications equipment；The remote server 10 is used for the realization of Remote Diagnosis System,
Carry out with mobile phone radio interconnected, diagnostic result can be uploaded to by remote server by the wireless network of mobile phone, realize it is long-range therefore
Barrier diagnosis, including DTC remotely reads, teleprogram updates etc., so diagnostic result can be uploaded to by producer by mobile phone
After-sale service device, it is also possible to push the controller software for updating.Other equipment is with first, second embodiment.
The fault diagnosis flow scheme of the 3rd preferred implementation is：
1）Car owner enters diagnostic operation interface by the touch display module 6 of main system of audio；
2）The diagnosis that the controller to be diagnosed is selected in the diagnostic operation interface of touch display module 6 starts icon；
3）Touch display module 6 is input into the diagnosis enabling signal of correspondence controller to central processing unit；
4）Central controller transfers the diagnostic process of correspondence controller and is sent to CAN transceiver；
5）CAN transceiver sends the diagnostic process of correspondence controller to vehicle-mounted CAN bus network；
6）Correspondence controller is received by vehicle-mounted CAN bus network and carry out after diagnostic process Self-Test Diagnostics；
7）Correspondence controller completes that diagnostic result is fed back to into vehicle-mounted CAN bus network after fault diagnosis；
8）CAN transceiver is extracted from vehicle-mounted CAN bus network the diagnostic result of correspondence controller feedback and is provided it to
Central processor；
9）Central processing unit exports diagnostic result to touch display module after parsing to diagnostic result, aobvious by touching
Show that module intuitively shows diagnostic result；
10）Further preferred central processing unit exports the diagnostic result after parsing to bluetooth module, again will by bluetooth module
Diagnostic result is supplied to mobile phone terminal, diagnostic result is carried out on mobile phone terminal and is shown, and further by mobile phone by wireless
Diagnostic result is sent to remote server by network, and the data for being simultaneously from remote server are supplied to sound equipment master by mobile phone
Machine.
The fault diagnosis flow scheme of the 3rd preferred implementation can also be：
1）Car owner enters diagnostic operation interface by mobile phone A PP；
2）The diagnosis that the controller to be diagnosed is selected in the diagnostic operation interface of mobile phone A PP starts icon；
3）Mobile phone is input into the diagnosis enabling signal of correspondence controller by bluetooth module to central processing unit；
4）Central controller transfers the diagnostic process of correspondence controller and is sent to CAN transceiver；
5）CAN transceiver sends the diagnostic process of correspondence controller to vehicle-mounted CAN bus network；
6）Correspondence controller is received by vehicle-mounted CAN bus network and carry out after diagnostic process Self-Test Diagnostics；
7）Correspondence controller completes that diagnostic result is fed back to into vehicle-mounted CAN bus network after fault diagnosis；
8）CAN transceiver is extracted from vehicle-mounted CAN bus network the diagnostic result of correspondence controller feedback and is provided it to
Central processor；
9）Central processing unit exports diagnostic result to bluetooth module after parsing to diagnostic result, will by bluetooth module
Diagnostic result is supplied to mobile phone, and by mobile phone screen diagnostic result is shown；And/or central processing unit is parsed to diagnostic result
Diagnostic result is exported to touch display module afterwards, diagnostic result is intuitively shown by touch display module；
10）Further preferred is sent to remote server by wireless network by mobile phone terminal by diagnostic result, realizes long-range
Fault diagnosis, the data for being simultaneously from remote server are supplied to main system of audio by mobile phone, wherein from remote server
Data can be remote diagnosis request, diagnotor renewal etc., and these data in mobile phone A PP by carrying out Jing after respective operations
Mobile phone is supplied to main system of audio.
To sum up, the present invention takes full advantage of main system of audio can provide the particular advantages of convenient man-machine interaction, by sound
The correlation function for ringing main frame is configured, and the characteristics of all possess fault diagnosis functions with reference to each function control device of car load, then lead to
Cross the vehicle-mounted CAN bus network system of main system of audio itself and the gateway system of car load to show the diagnosis to each controller
As a result, provide that a kind of diagnostic operation is eased, diagnostic result shows more on the basis of any hardware cost is not increased
Intuitively, diagnostic result processes more perfect vehicle fault diagnosis system, while the extendable functions based on main system of audio, pass through
Bluetooth module realizes main system of audio with the interconnection of mobile phone, the friendship by installing corresponding App realizations and remote server on mobile phone
Mutually, the operating function of vehicle fault diagnosis system is not only enriched, and improves its trouble diagnosibility, belong to car of new generation
Carry fault diagnosis product, wide market.
The above is only and the preferred embodiment of the present invention is described, be not limited to technical scheme
This, any known deformation that those skilled in the art are made on the basis of the major technique design of the present invention belongs to the present invention
Claimed technology category, the specific protection domain of the present invention is defined by the record of claims.
Claims (10)
1. a kind of vehicle fault diagnosis system based on vehicle-mounted audio host, it is characterised in that include：Vehicle-mounted audio host（2）,
The vehicle-mounted audio host（2）With the fault diagnosis control function for initiating diagnostic process and collection diagnostic result.
2. vehicle fault diagnosis system according to claim 1, it is characterised in that the vehicle-mounted audio host（2）Including：
Central processing unit（3）, input-output apparatus and CAN transceiver（4）, the input-output apparatus and CAN transceiver（4）Connection
In the central processing unit（3）, the CAN transceiver（4）It is connected to vehicle-mounted CAN bus network（7）, the input/output sets
It is ready for use on to central processing unit（3）Input diagnosis enabling signal simultaneously exports central processing unit（3）Diagnostic result after parsing, institute
State central processing unit（3）Diagnostic process is initiated according to the diagnosis enabling signal that input-output apparatus are provided, and is received and dispatched by CAN
Device（4）Send to vehicle-mounted CAN bus network（7）, treat that diagnostic device passes through vehicle-mounted CAN bus network（7）Diagnostic process is received, and
The diagnostic result after fault diagnosis will be carried out based on diagnostic process by vehicle-mounted CAN bus network（7）And CAN transceiver（4）Instead
Feed central processing unit（3）, the central processing unit（3）Export after parsing to diagnostic result and set to the input/output
It is standby.
3. vehicle fault diagnosis system according to claim 2, it is characterised in that the central processing unit（3）In preset
There is each to treat the diagnostic process of diagnostic device, the input-output apparatus are to central processing unit（3）Examining for diagnostic device is treated in input
After disconnected enabling signal, the central processing unit（3）The diagnostic process that correspondence treats diagnostic device is transferred, and by CAN transceiver（4）
And vehicle-mounted CAN bus network（7）By diagnostic process be sent to it is corresponding treat diagnostic device, treat that diagnostic device is carried out according to diagnostic process
Fault self-diagnosis, and diagnostic result is passed through into vehicle-mounted CAN bus network（7）And CAN transceiver（4）It is supplied to central processing unit
（3）, the central processing unit（3）Export after parsing to diagnostic result to the input-output apparatus.
4. vehicle fault diagnosis system according to claim 3, it is characterised in that described to treat that diagnostic device includes each control
Device processed, each controller is connected to vehicle-mounted CAN bus network by control node（7）, and can be from vehicle-mounted CAN bus network
（7）The upper acquisition diagnostic process of itself, while the diagnostic result of itself can be fed back to into vehicle-mounted CAN bus network（7）.
5. the vehicle fault diagnosis system according to any one of claim 2-4, it is characterised in that the input/output sets
It is standby to include bluetooth module（5）, the bluetooth module（5）It is connected to the central processing unit（3）, and the bluetooth module（5）Energy
Enough carry out with subscriber terminal equipment wireless interconnected.
6. vehicle fault diagnosis system according to claim 5, it is characterised in that the subscriber terminal equipment is to be provided with
The mobile phone of fault diagnosis APP（1）, the mobile phone（1）Diagnostic operation/display interface in be disposed with each and treat examining for diagnostic device
Disconnected to start icon, selecting the diagnosis to start icon can be to central processing unit（3）Input correspondence treats that the diagnosis of diagnostic device is opened
Dynamic signal, the central processing unit（3）Correspondence after parsing treats that the diagnostic result of diagnostic device passes through the mobile phone（1）Diagnosis
Operation/display interface is shown.
7. the vehicle fault diagnosis system according to claim 5 or 6, it is characterised in that the subscriber terminal equipment with it is remote
Journey server（10）It is wireless interconnected, and diagnostic result is sent to remote server by wireless network（10）, while can be by
Remote server（10）The data feedback of transmission is to central processing unit（3）.
8. the vehicle fault diagnosis system according to any one of claim 2-7, it is characterised in that the input/output sets
It is standby to include touch display module（6）, the touch display module（6）It is connected to the central processing unit（3）, it is described to touch display
Module（6）Diagnostic operation/display interface in be disposed with diagnosis that each treats diagnostic device and start icon, select the diagnosis to open
Cardon mark can be to central processing unit（3）Input correspondence treats the diagnosis enabling signal of diagnostic device, the central processing unit（3）Solution
Correspondence after analysis treats the diagnostic result of diagnostic device by the touch display module（6）Diagnostic operation/display interface carry out
Show.
9. a kind of Diagnosis method of automobile faults carried out based on vehicle fault diagnosis system described in claim 6, it is characterised in that
The Diagnosis method of automobile faults is comprised the following steps：
（1）Car owner enters the diagnostic operation/display interface of mobile phone, and selects the diagnosis for treating diagnostic device to start icon；
（2）The diagnosis enabling signal that correspondence treats diagnostic device is input into central processing unit by bluetooth module from mobile phone；
（3）The central controller transfers that correspondence treats the diagnostic process of diagnostic device and to be sent to vehicle-mounted CAN by CAN transceiver total
Gauze network；
（4）Treat that diagnostic device receives diagnostic process and carries out self-diagnosis of trouble based on diagnostic process by vehicle-mounted CAN bus network
It is disconnected；
（5）Diagnostic result is fed back to into vehicle-mounted CAN bus network after diagnostic device completes fault diagnosis；
（6）The central controller obtains the diagnostic result for treating diagnostic device from vehicle-mounted CAN bus network by CAN transceiver
And parsed；
（7）The central processing unit exports the diagnostic result after parsing to mobile phone by bluetooth module；
（8）The diagnostic result for treating diagnostic device is shown by the diagnostic operation/display interface of mobile phone.
10. a kind of Diagnosis method of automobile faults carried out based on vehicle fault diagnosis system described in claim 8, its feature is existed
In the Diagnosis method of automobile faults is comprised the following steps：
（1）Car owner enters the diagnostic operation/display interface of touch display module, and selects to treat the diagnosis startup figure of diagnostic device
Mark；
（2）The diagnosis enabling signal that correspondence treats diagnostic device is input into from touch display module to central processing unit；
（3）The central controller transfers that correspondence treats the diagnostic process of diagnostic device and to be sent to vehicle-mounted CAN by CAN transceiver total
Gauze network；
（4）Treat that diagnostic device receives diagnostic process and carries out self-diagnosis of trouble based on diagnostic process by vehicle-mounted CAN bus network
It is disconnected；
（5）Diagnostic result is fed back to into vehicle-mounted CAN bus network after diagnostic device completes fault diagnosis；
（6）The central controller obtains the diagnostic result for treating diagnostic device from vehicle-mounted CAN bus network by CAN transceiver
And parsed；
（7）The central processing unit exports the diagnostic result after parsing to touch display module；
（8）The diagnostic result for treating diagnostic device is shown by the diagnostic operation/display interface of touch display module.
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