CN207529220U - A kind of whole electric vehicle intelligent fault detection and diagnosis system - Google Patents
A kind of whole electric vehicle intelligent fault detection and diagnosis system Download PDFInfo
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- CN207529220U CN207529220U CN201721478034.7U CN201721478034U CN207529220U CN 207529220 U CN207529220 U CN 207529220U CN 201721478034 U CN201721478034 U CN 201721478034U CN 207529220 U CN207529220 U CN 207529220U
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Abstract
The utility model discloses a kind of whole electric vehicle intelligent fault detection and diagnosis systems, electronic control unit detects various vehicle components operating condition, obtain fault in production code, CAN USB transition cards are connected through electric vehicle CAN bus, CAN USB transition cards connect smart machine by USB OTG data line datas line, and smart machine read failure code simultaneously judges whether request remote diagnosis；Failure code is sent to remote fault diagnosis server by wireless network if request, server obtains corresponding failure code and counter-measure after receiving, it is on the contrary then by smart machine oneself acquisition.The system timely instructs auto repair, reduces the cost of user, manpower user need not buy vehicle diagnosing apparatus, convenient and efficient.
Description
Technical field
The utility model is related to intelligent fault detection and diagnosis systems, more particularly to a kind of whole electric vehicle intelligent fault to detect
Diagnostic system.
Background technology
In recent years, science and technology rapidly develops, and especially mechanics of communication is flourishing day by day, is widely used in industry-by-industry, on vehicle
Remote information communication traffic is installed, it is possible to provide vehicle position information service, report theft and carry out accident detection, remote
Vehicle diagnostics, it is convenient and efficient, it is provided conveniently for car owner's trip
In today of electric vehicle industry high speed development, vehicle technology tipped increasingly, especially complete vehicle fault detection technique
Also it reaches its maturity, by integrated technology, the control unit of vehicle can cross the operating status for obtaining all parts, obtain failure generation
Code, so as to achieve the effect that complete vehicle fault detects.
But in existing fault detection system there is it is apparent the defects of：Vehicle breaks down in the process of moving
When, often since the source of failure is wide, fault type is complicated, and Field Force can not get detailed failure code and should in time
Measure is repaired, has aggravated user time cost and maintenance cost, reduces consumer products experience.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of whole electric vehicle intelligent fault detection
Diagnostic system to solve since source of failure polymorphic type is wide, accurate judgement fault type and can not can not carry out failure instant
The problem of repair, the effectively save cost of energy save the time.
Technical solution is used by the utility model：
A kind of whole electric vehicle intelligent fault detection and diagnosis system, including electronic control unit, smart machine, CAN bus,
CAN-USB transition cards, remote fault diagnosis server, Noise Acquisition device, CAN bus tracer；Noise Acquisition device passes through
Bus is connected with electronic control unit, and CAN bus tracer is connected respectively with CAN bus low and high level line；Electronics
The failure code and CAN bus tracer that control unit will receive the acquisition of Noise Acquisition device and the generation of transformed signal
The failure code that will be detected connects CAN-USB transition cards by electric vehicle CAN buses, and CAN-USB transition cards pass through USB-
OTG data lines connect smart machine, and the smart machine read failure code judges whether request remote diagnosis.
As being further improved for this programme, the Noise Acquisition device includes：At least one microphone, the microphone
It is connected with electronic control unit.
As being further improved for this programme, the CAN bus tracer includes relay and tracer
Logic primary module, the first end of CAN bus tracer are connected to the high level line of the CAN bus, and second end is connected to
The low level line of the CAN bus.
As being further improved for this programme, the CAN-USB transition cards are set by USB-OTG data lines connection intelligence
It is standby, smart machine read failure code.
As being further improved for this programme, the USB-OTG data lines both ends connect respectively CAN-USB transition cards and
Smart machine.
As being further improved for this programme, the smart machine passes through wireless network and remote fault diagnosis server
Transmission fault code after the failure code for reading electronic control unit transmission, judges whether to ask remotely to demarcate, if please
It asks, failure code is sent to remote fault diagnosis server by the smart machine by wireless network, if do not asked, the intelligence
Energy equipment handles the failure code, obtains the calibrated state parameter and is transmitted to electronic control unit.
As being further improved for this programme, the USB-OTG data lines both ends connect respectively CAN-USB transition cards and
Smart machine.
As being further improved for this programme, the smart machine includes smart mobile phone or computer, passes through USB-OTG
Data line connects CAN-USB transition cards.
As being further improved for this programme, the remote diagnosis server receives the failure code of smart machine transmission
Afterwards, it carries out processing and obtains calibrated state parameter, and pass through wireless network and be sent to smart machine, pass through the smart machine
The calibration state parameter is transmitted to electronic control unit.
Compared with prior art, the beneficial effects of the utility model are：
In whole electric vehicle intelligent fault detection and diagnosis system provided by the utility model, electronic control unit receives noise
After the signal that the electric signal of collector for processing is sent out with CAN tracers, various vehicle components operating condition is detected, is obtained corresponding
Failure code, by being connect with CAN buses, CAN-USB transition cards are connected with USB-OTG data lines, finally by fault-signal
Smart machine is transferred to, the smart machine read failure code judges whether request remote diagnosis.The technical solution can be accurate
Electric vehicle fault type is obtained, and sends remote diagnosis server after being received by smart machine and is diagnosed, so as to fulfill long-range
Technical staff carries out failure the effect of care diagnostic and processing, reduces user's maintenance time and monetary cost.
It is connected by the microphone in Noise Acquisition device with electronic control unit, the collected electric vehicle of microphone is existed
The noise signal sent out in driving process switchs to corresponding electric signal, and by the electric signal transmission to electronic control unit, makes electricity
Sub-control unit detects failure code.
By the relay in CAN bus tracer and failure detector logic primary module, relay is examined with failure
The series connection of device logic primary module is surveyed, and the first end of the failure detector logic primary module is connected to the high level of CAN bus
Line, second end are connected to the low level line of CAN bus, can detect the communication failure of CAN bus in time.
By the smart machine by wireless network and remote fault diagnosis server transport failure code, receiving
To after the failure code of electronic control unit, judge whether to ask remotely to demarcate, if request, the smart machine passes through wireless
Failure code is sent to remote fault diagnosis server by network, if do not asked, the smart machine to the failure code into
Row processing obtains the calibrated state parameter and is transmitted to electronic control unit, the failure of vehicle remotely can be examined
It is disconnected so that Field Force can obtain failure code and corresponding repair means immediately, reduce user's maintenance cost.
After receiving the failure code that smart machine is sent by the remote diagnosis server, carry out processing and obtain calibration
State parameter afterwards, and smart machine is sent to through wireless network, the calibration state parameter is transmitted to by the smart machine
Electronic control unit can be retrieved in the failure code database of remote diagnosis server, and by the information retrieved and phase
The countermeasure answered is sent to smart machine immediately, and Field Force is instructed to carry out breakdown maintenance, is further expanded soluble
Vehicle trouble can be fast and effeciently resolved for the range of fault type.
Description of the drawings
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing into
The detailed description of one step, wherein：
Fig. 1 is the structure chart of the fault detection and diagnosis system of electric vehicle；
Fig. 2 is smart machine functional diagram
Fig. 3 is remote diagnosis server functional diagram
Fig. 4 is working-flow figure
In figure：01st, noise gathering device 02, electronic control unit；03rd, CAN tracers 04, CAN bus；05、CAN-
USB transition cards；06th, USB-OTG data lines；07th, smart machine；08th, wireless network；09th, remote fault diagnosis server
Specific embodiment
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art and technical solution are briefly described, it should be apparent that, in being described below
Attached drawing be only some embodiments of the utility model, for those of ordinary skill in the art, do not paying creativeness
Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.
The utility model is further illustrated below in conjunction with the accompanying drawings.
Timely automobile is repaired in order to realize, cost, the man power and material of user are reduced, referring to Fig. 1, this practicality
It is novel to propose a kind of fault diagnosis system for automobile, a kind of whole electric vehicle intelligent fault detection and diagnosis system, including
Noise Acquisition device, electronic control unit 2, CAN bus tracer 3, CAN bus 4, smart machine 7, CAN-USB transition cards
5, USB-OTG data lines 6, remote fault diagnosis server 9；Noise Acquisition device all kinds of is made an uproar what is be collected into vehicle travel process
Sound signal is converted to corresponding electric signal, and by the electric signal transmission to electronic control unit, CAN bus detector will be to CAN
The result of the fault detect of bus is transferred to smart machine, is controlled electronically by 5 card of CAN-USB conversions, USB-OTG data lines 6
After unit receives the signal, determine that electric vehicle with the presence or absence of failure, blocks, USB-OTG data lines 6 are transferred to intelligence according to electric signal
Can equipment, while 4 detector of CAN bus by the result of the fault detect of CAN bus 4 by CAN-USB transition cards 5,
6 line of USB-OTG data lines is transferred to smart machine, and the smart machine judges whether that request is remotely examined after receiving failure code
It is disconnected.
Further, Noise Acquisition device includes at least a microphone, and the microphone is connected with electronic control unit,
An input channel of digital Multi Channel Controller corresponds in microphone and electronic control unit, according between preset time
Every by multiple electric signal transmissions for carrying noise information to electronic control unit.
Further, 4 tracer of CAN bus includes relay and failure detector logic primary module, CAN bus 4
The first end of tracer is connected to the high level line of the CAN bus 4, and second end is connected to the low of the CAN bus 4
Level line；The controller of electronic control unit judge the CAN bus 4 there are during communication failure to the CAN buses 4 into
The further fault detect of row.
Further, after 7 read failure code of smart machine, start intelligent diagnostics application of function, failure code is carried out
Diagnosis, with reference to and judge whether to ask remotely to demarcate, if request, the smart machine sent out failure code by wireless network
It send to remote fault diagnosis server, if do not asked, which handles the failure code and carry out local
Calibration, obtains the calibrated state parameter and counter-measure is transmitted to electronic control unit.In this way, facilitate use
Family directly understands failure code and counter-measure by smart machine 7, convenient and efficient, reduces maintenance cost.
Further, the range for expansion trouble-locating, existing want cannot be met by preventing the local data base of smart machine
Situation about asking, remote fault diagnosis server 9, concrete function is referring to Fig. 3, after the failure code for receiving smart machine transmission,
Correspondingly detailed diagnostic information and counter-measure are searched in the database and is remotely demarcated, and will be processed through wireless network
Information back afterwards to smart machine 7, smart machine 7 will be directed to information and counter-measure be displayed on the screen it is for reference,
After user is by electric vehicle fault clearance, smart machine 7 removes the failure code itself stored.
Specific work process
With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the specific work process of the present embodiment is described, it is specific as follows：
Electronic control unit has self-diagnostic function, without exception by the way that whether the inductive signal for judging to receive has, and comes true
Surely with the presence or absence of failure, each failure that system can be detected is represented with corresponding error code, error code state then table
Show storage condition of failure etc., be mainly used for distinguishing sporadic failure, persistent failure, historic failure and current failure, therefore
Barrier code and error code state are one-to-one, error code state that there are one each error code, in the nonvolatile memory
The Address Mapping of error code and error code state should be established in advance.When diagnostic device sends diagnostic service instruction electron control
During unit 2 processed, electronic control unit 2 performs corresponding service, returns to corresponding failure code, to instruct field service personnel's
Work.
All kinds of noise signals being collected into vehicle travel process are converted to corresponding electric signal by Noise Acquisition device, by institute
Electric signal transmission is stated to electronic control unit, after electronic control unit receives the signal, determines that electric vehicle is according to electric signal
No there are failures, generate failure code and are transferred to smart machine through CAN-USB transition cards 5 and USB-OTG data lines 6 successively, together
When 4 detector of CAN bus will pass through CAN-USB transition cards, USB-OTG data lines 6 to the result of the fault detect of CAN bus
Smart machine is transferred to, the smart machine judges whether request remote diagnosis after receiving failure code.With reference to Fig. 2, intelligently set
Standby 7 concrete function includes read failure code function, removes failure code function, and local calibrating function asks remote failure
Diagnostic function asks long-range calibrating function；With reference to Fig. 3, the smart machine with self-diagnostic function after failure code is received,
Judge whether request remote diagnosis, user starts the diagnostic software on smart machine 7, the diagnostic software read failure code process
Module 3 send failure code, after smart machine 7 receives failure code, by user determine be in the local database into
Row search and calibration still scan for and ask in remote fault diagnosis database remotely to demarcate, if in local data base
In scan for, then by diagnostic message include on smart machine 7；If request remote diagnosis and long-range calibration, just will hinder code
Remote fault diagnosis server 9 is sent to, remote fault diagnosis server 9 will search for corresponding detailed, diagnosis in the database
Information and counter-measure, and smart machine 7 is returned to through wireless network, smart machine 7 shows diagnostic message and counter-measure
For reference on the screen, for user by after the fault clearance of automobile, smart machine 7 is then clear the failure code in memory
It removes.
The above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any change or replacement expected without creative work should be covered within the scope of the utility model.
Therefore, the scope of protection of the utility model should be determined by the scope of protection defined in the claims.
Claims (8)
1. a kind of whole electric vehicle intelligent fault detection and diagnosis system, including electronic control unit, smart machine, CAN bus,
CAN-USB transition cards, remote fault diagnosis server, electronic control unit are connected by CAN bus with CAN-USB transition cards,
CAN-USB transition cards are connected by USB-OTG data line lines with smart machine, with it is characterized in that：
The whole electric vehicle intelligent fault detection and diagnosis system further includes Noise Acquisition device, and CAN bus tracer is made an uproar
Sound collector is connected by bus with electronic control unit, CAN bus tracer respectively with CAN bus low and high level line
It is connected；The failure code and CAN bus that electronic control unit will receive the acquisition of Noise Acquisition device and the generation of transformed signal
The failure code that tracer will detect connects CAN-USB transition cards, CAN-USB transition cards by electric vehicle CAN bus
Self diagnosis is had both by the connection of USB-OTG data lines and asks the smart machine of remote request diagnostic function.
2. whole electric vehicle intelligent fault detection and diagnosis system according to claim 1, which is characterized in that the noise
Collector includes：At least one microphone, the microphone are connected with electronic control unit.
3. whole electric vehicle intelligent fault detection and diagnosis system according to claim 1, which is characterized in that the CAN
Bus failure detector include relay and failure detector logic primary module, the first of the CAN bus tracer
End is connected to the high level line of the CAN bus, and second end is connected to the low level line of the CAN bus.
4. whole electric vehicle intelligent fault detection and diagnosis system according to claim 1, which is characterized in that the CAN-
USB transition cards connect smart machine, the smart machine read failure code by USB-OTG data lines.
5. whole electric vehicle intelligent fault detection and diagnosis system according to claim 4, it is characterised in that, the USB-
OTG data lines both ends connect CAN-USB transition cards and smart machine respectively.
6. whole electric vehicle intelligent fault detection and diagnosis system according to claim 1, which is characterized in that the intelligence is set
It is standby with remote fault diagnosis server by wireless network transmissions signal, will read electronic control unit in the smart machine and pass
After defeated failure code, judge whether to ask remotely to demarcate, if request, the smart machine is by wireless network by failure generation
Code is sent to remote fault diagnosis server, if do not asked, which handles the failure code, obtains mark
State parameter after fixed is transmitted to electronic control unit.
7. whole electric vehicle intelligent fault detection and diagnosis system according to claim 6, which is characterized in that the intelligence
Equipment includes smart mobile phone or computer, and CAN-USB transition cards are connected by USB-OTG data lines.
8. whole electric vehicle intelligent fault detection and diagnosis system according to claim 5, which is characterized in that described in institute
The failure code that server receives smart machine transmission is stated, processing is carried out and obtains calibrated state parameter, and pass through wireless network
Network is sent to smart machine, and electronic control unit is transmitted to by state parameter is demarcated by the smart machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721478034.7U CN207529220U (en) | 2017-11-08 | 2017-11-08 | A kind of whole electric vehicle intelligent fault detection and diagnosis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721478034.7U CN207529220U (en) | 2017-11-08 | 2017-11-08 | A kind of whole electric vehicle intelligent fault detection and diagnosis system |
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| Publication Number | Publication Date |
|---|---|
| CN207529220U true CN207529220U (en) | 2018-06-22 |
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ID=62581745
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721478034.7U Expired - Fee Related CN207529220U (en) | 2017-11-08 | 2017-11-08 | A kind of whole electric vehicle intelligent fault detection and diagnosis system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112947372A (en) * | 2021-02-05 | 2021-06-11 | 重庆长安汽车股份有限公司 | Remote diagnosis method based on active reporting of fault codes |
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2017
- 2017-11-08 CN CN201721478034.7U patent/CN207529220U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112947372A (en) * | 2021-02-05 | 2021-06-11 | 重庆长安汽车股份有限公司 | Remote diagnosis method based on active reporting of fault codes |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20191108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |