CN105511448B - Integrated vehicle diagnostic instrument and diagnostic method thereof - Google Patents
Integrated vehicle diagnostic instrument and diagnostic method thereof Download PDFInfo
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- CN105511448B CN105511448B CN201511007382.1A CN201511007382A CN105511448B CN 105511448 B CN105511448 B CN 105511448B CN 201511007382 A CN201511007382 A CN 201511007382A CN 105511448 B CN105511448 B CN 105511448B
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- 238000002405 diagnostic procedure Methods 0.000 title claims description 14
- 238000003745 diagnosis Methods 0.000 claims abstract description 63
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000004044 response Effects 0.000 claims description 14
- 238000011156 evaluation Methods 0.000 claims description 6
- 238000011990 functional testing Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 4
- 230000010354 integration Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 5
- 239000004202 carbamide Substances 0.000 description 5
- 239000000976 ink Substances 0.000 description 3
- 238000011309 routine diagnosis Methods 0.000 description 3
- 238000009666 routine test Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24048—Remote test, monitoring, diagnostic
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Testing And Monitoring For Control Systems (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The integrated vehicle diagnostic apparatus comprises a PC, an electric control unit, a diagnostic adapter and a diagnostic server, has strong universality and lower cost, and improves the diagnostic efficiency and diagnostic accuracy of maintenance service personnel. The diagnosis method comprises the following steps: the method comprises the steps that firstly, a PC is connected with an electric control unit and establishes communication connection with the electric control unit, meanwhile, a diagnosis adapter is initialized, secondly, a diagnosis function is selected, thirdly, a function test is carried out, and fourthly, a diagnosis result is displayed; the method realizes the function integration and greatly improves the universality of the diagnosis software.
Description
Technical field
The present invention relates to a kind of automobile-used diagnostic equipment, the automobile-used diagnostic equipment of more specifically to a kind of integrated form and its diagnosis side
Method.
Background technology
With the continuous development of automotive engineering, Hyundai Motor uses ECU more and more（ECU）Automobile is controlled to live
It is dynamic.Assembly plant on the one hand in order to improve vehicle competitiveness, it is most all can the powerful ECU of selection function, ECU
Complexity be consequently increased；On the other hand in order to reduce integral vehicle cost, vehicle factor also can select different manufacturers to produce as far as possible
ECU, so as to cause that the ECU of multiple commercial vendors can be loaded on same vehicle.
As ECU quantity increases on vehicle, probability that the automobile circuit using ECU as core breaks down
It is consequently increased, and it is also more difficult to investigate ECU failure；Therefore, ECU manufacturer has released one after another independently
Diagnostic tool diagnoses the ECU of themselves production.But existing diagnostic tool has many deficiencies：First, diagnostic function
Simply, usual in general diagnostic tool only has simple Read fault function, extremely limited to the directive function of maintenance service personnel.
2nd, diagnostic tool poor universality, the Development of ECU for Compressed that ECU manufacturer can only be directed to themselves production are examined accordingly
Disconnected instrument, the series that existing diagnostic service instrument can only typically diagnose the production of some ECU manufacturer are even a certain
Individual ECU, therefore, the diagnostic tool that service station needs to be equipped with more money difference ECU manufacturers could be completed simply
Vehicle diagnostic work, poor universality.
The content of the invention
It is an object of the invention to the diagnostic tool diagnostic function for ECU on existing automobile is simple, versatility
The defects of poor, there is provided a kind of automobile-used diagnostic equipment of integrated form and its diagnostic method.
To achieve the above object, institute is the present invention using technical solution：A kind of automobile-used diagnostic equipment of integrated form, including PC
Mechanical, electrical control unit, also include diagnosis adapter and diagnosis server, pass through USB between described PC and diagnosis adapter
Connecting line is connected, and is connected between the OBD interface ends and vehicle electrically controlling unit OBD diagnostics ports of the diagnosis adapter by OBD
Line is connected, and described diagnosis server is connected with PC, and described diagnosis server, which is realized, downloads EOL data and automatically controlled list
First application data, in described PC operation have PC diagnostic softwares and diagnostic data base, described diagnostic data base passes through
Database-driven engine is connected with PC diagnostic softwares, and diagnostic data base is realized diagnostic software rights management, provided needed for diagnosis
Diagnostic data and record diagnosis report.
A kind of diagnostic method of the automobile-used diagnostic equipment of integrated form, including below step：
Step 1, PC connection ECU simultaneously establishes communication connection with ECU, while initializes diagnosis adapter：
PC operation PC diagnostic softwares, the ECU for needing to diagnose by PC selection, PC diagnostic softwares are entitled with ECU
Mark obtains the communication configuration information of the ECU by diagnostic data base, and PC will be automatically controlled during ECU is connected
Unit communication configuration information is written in diagnosis adapter, and to complete to diagnose the initialization of adapter, diagnosis adapter passes through just
After beginningization, PC sends solicited message by diagnosing adapter to ECU, correspondingly receives the sound for specifying ECU
Answer information；
Step 2, select diagnostic function：After connecting ECU, PC diagnostic softwares are passed through with the entitled mark of ECU
Diagnostic data base obtains the functional configuration information of the ECU, and is selected by function of the PC screen display in PC diagnostic softwares
Select on interface, by clicking on a certain function button in PC diagnostic equipment function selection interfaces, PC diagnostic softwares just enter user automatically
In the test interface for entering the function；
Step 3, carry out functional test：The test interface of PC diagnostic softwares is shown on PC screen, and user passes through click
" start to test " button in test interface and start functional test, PC diagnostic softwares send to ECU according to set sequential and reported
Literary sequence, ECU drives actuator action after receiving sequence of message, while passes through the sensor detected vehicle shape on vehicle
The car status information detected is passed to PC by state, ECU in the form of bus message；
Step 4, show diagnostic result：PC receives the response message from ECU, and PC diagnostic softwares pass through diagnosis
The analytical algorithm of the data base querying response message, and response message is parsed according to the analytical algorithm of the response message,
PC diagnostic softwares make evaluation to the function of automobile-used device according to the result of parsing, and evaluation result is included in PC diagnostic softwares
Test interface on, by PC screen display to user, PC diagnostic softwares by diagnostic data base by this diagnostic process and
Diagnostic result is recorded on PC.
Described step three also includes below step below：
Step 3.1, PC accesses diagnosis server and downloads diagnostic data：PC accesses diagnostic service by Ethernet
Device, the diagnostic data in diagnosis server is downloaded, PC diagnostic softwares are repaired using diagnostic data to ECU；
Step 3.2, PC accesses diagnosis server and uploads download log：PC uploads diagnosis number after obtaining diagnostic data
According to download log, diagnosis server record this time download download log.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, dependable performance, cost is relatively low, and versatility is stronger.The automobile-used diagnostic equipment of integrated form in the present invention can diagnose difference
The ECU of manufacturer's production, solve diagnostic equipment in the market disperse, do not concentrate, skimble-scamble present situation, versatility is stronger；Solution
Determine ECU diagnostic field imperfection, inaccuracy, not intelligent diagnosis present situation, solved the high cost of diagnostic equipment, high consumption
Deficiency, improve maintenance service personnel diagnosis efficiency, diagnostic accuracy, reduce maintenance service cost.
2nd, the present invention in diagnostic method be integrated with routine diagnosis function, high level diagnostics function, data, services function and its
His function, realizes function integration, drastically increases the versatility of the diagnostic software.
Brief description of the drawings
Fig. 1 is diagnostic equipment structural schematic block diagram in the present invention.
Fig. 2 is diagnostic method flow chart in the present invention.
Embodiment
Below in conjunction with brief description of the drawings, the present invention is described in further detail with embodiment.
Referring to Fig. 1, a kind of automobile-used diagnostic equipment of integrated form, including PC, ECU, diagnosis adapter and diagnostic service
Device.
It is connected between described PC and diagnosis adapter by USB connecting lines, in PC and diagnosis adapter
Between transmit diagnostic data information.
Described diagnosis adapter realizes the mutual conversion and transmission between usb signal and CAN signal/Lin signals；Diagnosis
It is connected between the OBD interface ends of adapter and vehicle electrically controlling unit OBD diagnostics ports by OBD connecting lines.
Described diagnosis server is connected by network with PC；Described diagnosis server, which is realized, downloads EOL data
With ECU application data.
Operation has PC diagnostic softwares and diagnostic data base in described PC, and described diagnostic data base is driven by database
Dynamic engine is connected with PC diagnostic softwares.Diagnostic data base is the data set for diagnosis, and diagnostic data base realizes that diagnosis is soft
Part rights management, provide the required diagnostic data of diagnosis and record diagnosis report.
Referring to Fig. 2, a kind of diagnostic method of the automobile-used diagnostic equipment of integrated form, including below step：
Step 1, PC connection ECU simultaneously establishes communication connection with ECU, while initializes diagnosis adapter：
PC operation PC diagnostic softwares, the ECU for needing to diagnose by PC selection, PC diagnostic softwares are entitled with ECU
Mark obtains the communication configuration information of the ECU by diagnostic data base；PC will be automatically controlled during ECU is connected
Unit communication configuration information is written in diagnosis adapter, to complete to diagnose the initialization of adapter；Adapter is diagnosed to pass through just
After beginningization, PC sends solicited message by diagnosing adapter to ECU, correspondingly receives the sound for specifying ECU
Answer information.
Step 2, select diagnostic function：After connecting ECU, PC diagnostic softwares are passed through with the entitled mark of ECU
Diagnostic data base obtains the functional configuration information of the ECU, and is selected by function of the PC screen display in PC diagnostic softwares
Select on interface；By clicking on a certain function button in PC diagnostic equipment function selection interfaces, PC diagnostic softwares just enter user automatically
In the test interface for entering the function.
The diagnostic function of each ECU is different, and having differences property, this diagnostic method includes：Routine diagnosis work(
Energy, high level diagnostics function, data, services function and other functions.
Routine diagnosis function includes identification ECU, reads mark, Read fault, removes failure, DATA REASONING, knowledge therein
Other ECU is used on identifying and diagnosing vehicle the ECU loaded.Mark is read to be used to read ECU basic identification letter
Breath, such as hardware version, software version, date of manufacture, producer, production numbering.Read fault can read ECU
The failure that there is currently, that is, existing failure is read, can also read stored in ECU having occurred and that and current and repair
Multiple failure, that is, read historical failure；The working condition of ECU, Read fault function when being broken down to more meticulously understand
Can also read failure freeze frame and expand frame information, freeze frame and expand details when frame recording failure occurs, such as
Time that failure occurs, mileage, the number occurred, atmospheric pressure etc.；Maintenance personal can also be consulted every by Read fault function
The maintenance suggestion of individual failure, improve maintenance efficiency.DATA REASONING be shown with numerical value and oscillography show two ways monitoring with electricity
The related semaphore of unit is controlled, and the zone of reasonableness of current measurement signal amount is provided, is easy to maintenance personal to investigate abnormal signal.
High level diagnostics function includes I/O tests, Routine tests etc..The high level diagnostics function of each ECU is different,
Need to diagnose the design that each controller carries out differentiation, such as need to increase oil pump self study work(for Denso aftertreatment controller
Energy, the engine controller for Bosch need to increase maintenance lamp prompting function lamp, but most ECUs has IO surveys
Examination and Routine tests.IO tests therein refer to test the actuator of ECU control, such as relay, switch
Deng；Attendant tests the state for changing actuator by IO, and observation vehicle change judges whether actuator is normal.Such as control sky
Air compressor relay disconnection/adhesive, listen relay sound it may determine that relay whether normal work.It is therein
Routine tests, which refer to be cooperated by ECU and diagnostic equipment, is used for the test function for detecting ECU working condition；When
When ECU goes wrong, the DTC read inside ECU is the first step diagnosed, but has many failures
ECU is None- identified, reads to wear less than DTC, such as the barrel wear of engine, atomizer from ECU
Deng.In this case typically tested using Routine；Such as the Routine of detection urea pump sealing tests-built pressure test,
The present invention can make urea pump build pressure condition into pressure test, observation is built, and whether urea pump pressure value can maintain a 68Kpa left sides
The right side, if can if urea pump favorable sealing property, if can not if urea pump sealing property it is bad.
Data, services function is the function of solving ECU in house software failure, and it includes three main subfunctions：EOL
（It is offline）Data are write with a brush dipped in Chinese ink, basic data is recovered and basic data upgrading.EOL（It is offline）Data, which are write with a brush dipped in Chinese ink, to be referred to re-scale automatically controlled list
Some nominal datas when member is offline, such as limiting vehicle speed；Basic data is recovered and basic data upgrading refers in ECU
Portion's data（Application program mainly inside ECU）Damage or need to write with a brush dipped in Chinese ink base inside ECU during upgrading again
The function of plinth data, avoid returning factory and change part and cause maintenance cost too high.The EOL nominal datas and basis that data, services function is related to
Data belong to the classified papers of vehicle producer, and the security requirement of data file is high, and therefore, data file, which is typically stored in, examines
In disconnected server, directly managed by vehicle producer, diagnostic software is used for data, services work(by request downloading data file of networking
Energy.
Other functions include software upgrading, diagnosis report generation and printing, user authority management, diagnosis help system.
Step 3, carry out functional test：The test interface of PC diagnostic softwares is shown on PC screen, and user passes through click
" start to test " button in test interface and start functional test, PC diagnostic softwares are sent according to set sequential to ECU
Sequence of message；ECU drives actuator after receiving sequence of message（Such as vehicle electromagnetic valve, relay, motor）Action, together
When pass through for example oily rail pressure power of the sensor detected vehicle state on vehicle, coolant temperature etc.；The car that ECU will detect
Status information passes to PC in the form of bus message, and such a car status information is the response message of ECU.
Step 4, show diagnostic result：PC receives the response message from ECU, and PC diagnostic softwares pass through diagnosis
The analytical algorithm of the data base querying response message, and response message is parsed according to the analytical algorithm of the response message；
PC diagnostic softwares make evaluation to the function of the automobile-used device such as ECU, actuator, sensor according to the result of parsing, and will
Evaluation result is shown on the test interface of PC diagnostic softwares, by PC screen display to user；PC diagnostic softwares are by examining
This diagnostic process and diagnostic result are recorded on PC by disconnected database.
Further, described step three also includes below step below：
Step 3.1, PC accesses diagnosis server and downloads diagnostic data：PC accesses diagnostic service by Ethernet
Device, the diagnostic data in diagnosis server is downloaded, PC diagnostic softwares are repaired using diagnostic data to ECU.
Step 3.2, PC accesses diagnosis server and uploads download log：PC uploads diagnosis number after obtaining diagnostic data
According to download log, such as download time, downloading data title, downloading data size, diagnosis server record this time download
Download log.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, said structure should be all considered as belonging to
Protection scope of the present invention.
Claims (2)
1. a kind of diagnostic method of the automobile-used diagnostic equipment of integrated form, diagnostic equipment therein includes PC, ECU, diagnosis adapter
And diagnosis server, it is connected between described PC and diagnosis adapter by USB connecting lines, the diagnosis adapter
It is connected between OBD interface ends and vehicle electrically controlling unit OBD diagnostics ports by OBD connecting lines, described diagnosis server and PC
Machine is connected, and described diagnosis server, which is realized, downloads EOL data and ECU application data, is transported in described PC
Hang You PC diagnostic softwares and diagnostic data base, described diagnostic data base are connected by database-driven engine with PC diagnostic softwares
Connect, diagnostic data base realizes diagnostic software rights management, provides the required diagnostic data of diagnosis and record diagnosis report, its feature
It is, the diagnostic method includes below step：
Step 1, PC connection ECU simultaneously establishes communication connection with ECU, while initializes diagnosis adapter：PC
PC diagnostic softwares are run, the ECU for needing to diagnose by PC selection, PC diagnostic softwares are with the entitled mark of ECU
The communication configuration information of the ECU is obtained by diagnostic data base, PC is by ECU during ECU is connected
Communication configuration information is written in diagnosis adapter, and to complete to diagnose the initialization of adapter, diagnosis adapter is by initialization
Afterwards, PC sends solicited message by diagnosing adapter to ECU, correspondingly receives the response letter for specifying ECU
Breath；
Step 2, select diagnostic function：After connecting ECU, PC diagnostic softwares pass through diagnosis with the entitled mark of ECU
Database obtains the functional configuration information of the ECU, and selects boundary by function of the PC screen display in PC diagnostic softwares
On face, user is by clicking on a certain function button in PC diagnostic equipment function selection interfaces, and PC diagnostic softwares are just automatically into this
In the test interface of function；
Step 3, carry out functional test：The test interface of PC diagnostic softwares is shown on PC screen, and user is tested by clicking on
" start to test " button in interface and start functional test, PC diagnostic softwares send message sequence according to set sequential to ECU
Row, ECU drives actuator action after receiving sequence of message, while passes through the sensor detected vehicle state on vehicle, electricity
The car status information detected is passed to PC by control unit in the form of bus message；
Step 4, show diagnostic result：PC receives the response message from ECU, and PC diagnostic softwares pass through diagnostic data
The analytical algorithm of the library inquiry response message, and response message is parsed according to the analytical algorithm of the response message, PC is examined
Disconnected software makes evaluation to the function of automobile-used device according to the result of parsing, and evaluation result is included into the survey in PC diagnostic softwares
Try on interface, by PC screen display to user, PC diagnostic softwares are by diagnostic data base by this diagnostic process and diagnosis
As a result it is recorded on PC.
A kind of 2. diagnostic method of the automobile-used diagnostic equipment of integrated form according to claim 1, it is characterised in that described step
Three also include below step below：
Step 3.1, PC accesses diagnosis server and downloads diagnostic data：PC accesses diagnosis server by Ethernet, under
The diagnostic data in diagnosis server is carried, PC diagnostic softwares are repaired using diagnostic data to ECU；
Step 3.2, PC accesses diagnosis server and uploads download log：PC uploads diagnostic data after obtaining diagnostic data
Download log, the download log that diagnosis server record is this time downloaded.
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| CN201511007382.1A CN105511448B (en) | 2015-12-30 | 2015-12-30 | Integrated vehicle diagnostic instrument and diagnostic method thereof |
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| CN201511007382.1A CN105511448B (en) | 2015-12-30 | 2015-12-30 | Integrated vehicle diagnostic instrument and diagnostic method thereof |
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| CN105511448A CN105511448A (en) | 2016-04-20 |
| CN105511448B true CN105511448B (en) | 2018-03-27 |
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| CN104007756A (en) * | 2014-05-08 | 2014-08-27 | 深圳市元征科技股份有限公司 | Individual car diagnostic system and method based on mobile intelligent terminal |
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