CN105511448A - Integrated vehicle diagnostic instrument and diagnostic method thereof - Google Patents
Integrated vehicle diagnostic instrument and diagnostic method thereof Download PDFInfo
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- CN105511448A CN105511448A CN201511007382.1A CN201511007382A CN105511448A CN 105511448 A CN105511448 A CN 105511448A CN 201511007382 A CN201511007382 A CN 201511007382A CN 105511448 A CN105511448 A CN 105511448A
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- 238000002405 diagnostic procedure Methods 0.000 title claims description 14
- 238000003745 diagnosis Methods 0.000 claims abstract description 67
- 238000012360 testing method Methods 0.000 claims abstract description 23
- 238000004891 communication Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000004044 response Effects 0.000 claims description 16
- 238000011156 evaluation Methods 0.000 claims description 6
- 238000011990 functional testing Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000008439 repair process Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 10
- 230000010354 integration Effects 0.000 abstract 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 5
- 239000004202 carbamide Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000009666 routine test Methods 0.000 description 4
- 239000000976 ink Substances 0.000 description 3
- 238000011309 routine diagnosis Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram 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
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 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
- 230000004069 differentiation Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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- 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
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- 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, relate to the automobile-used diagnostic equipment of a kind of integrated form and diagnostic method thereof in particular.
Background technology
Along with the development of automotive engineering, Hyundai Motor uses ECU (Electrical Control Unit) (ECU) to control automotive deck more and more.Assembly plant on the one hand in order to improve car load competitive power, most all can the powerful ECU (Electrical Control Unit) of selection function, the complicacy of ECU (Electrical Control Unit) also increases thereupon; On the other hand in order to reduce integral vehicle cost, the ECU (Electrical Control Unit) that car load factory also can select different manufacturer to produce as far as possible, thus cause the ECU (Electrical Control Unit) same vehicle loading Duo Jia manufacturer.
Along with increasing of element number automatically controlled on vehicle, be that the probability that the automobile circuit of core breaks down also increases thereupon with ECU (Electrical Control Unit), and investigation ECU (Electrical Control Unit) fault is also more difficult; For this reason, ECU (Electrical Control Unit) manufacturer has released one after another the ECU (Electrical Control Unit) that autonomous diagnostic tool diagnoses themselves to produce.But existing diagnostic tool has a lot of deficiency: one, diagnostic function is simple, and usually general diagnostic tool only has simple Read fault function, very limited to the directive function of maintenance service personnel.Two, diagnostic tool poor universality, the corresponding diagnostic tool of Development of ECU for Compressed that ECU (Electrical Control Unit) manufacturer only can produce for themselves, the even some ECU (Electrical Control Unit) of a series that existing diagnosis service aid generally can only diagnose certain ECU (Electrical Control Unit) manufacturer to produce, therefore, service station needs the diagnostic tool being equipped with the different ECU (Electrical Control Unit) manufacturer of many moneys just can complete simple car load diagnostic work, poor universality.
Summary of the invention
The object of the invention is to the defects such as diagnostic tool diagnostic function for ECU (Electrical Control Unit) on existing automobile is simple, poor universality, the automobile-used diagnostic equipment of a kind of integrated form and diagnostic method thereof are provided.
the present invention for achieving the above object, adopt technical solution to be:the automobile-used diagnostic equipment of a kind of integrated form, comprise PC, ECU (Electrical Control Unit), also include diagnosis adapter and diagnosis server, be connected by USB connecting line between described PC and diagnosis adapter, the OBD interface end of described diagnosis adapter is connected by OBD connecting line with between vehicle electrically controlling unit OBD diagnostics port, described diagnosis server is connected with PC, described diagnosis server realizes downloading EOL data and ECU (Electrical Control Unit) application data, run in described PC and have PC diagnostic software and diagnostic data base, described diagnostic data base is connected with PC diagnostic software by database-driven engine, diagnostic data base realizes diagnostic software rights management, diagnostic data needed for diagnosis and record diagnosis report are provided.
A diagnostic method for the automobile-used diagnostic equipment of integrated form, comprises step below:
Step one, PC connects ECU (Electrical Control Unit) and establishes a communications link with ECU (Electrical Control Unit), the diagnosis of initialization simultaneously adapter: PC runs PC diagnostic software, the ECU (Electrical Control Unit) needing diagnosis is selected by PC, PC diagnostic software is called the communication configuration information identifying and obtained this ECU (Electrical Control Unit) by diagnostic data base with ECU (Electrical Control Unit) name, in connection ECU (Electrical Control Unit) process, the PC configuration information that ECU (Electrical Control Unit) communicated is written in diagnosis adapter, to complete the initialization of diagnosis adapter, diagnosis adapter is after initialization, PC is by diagnosing adapter to ECU (Electrical Control Unit) transmission request information, correspondingly receive the response message of specifying ECU (Electrical Control Unit),
Step 2, select diagnostic function: after connecting ECU (Electrical Control Unit), PC diagnostic software is called the functional configuration information identifying and obtained this ECU (Electrical Control Unit) by diagnostic data base with ECU (Electrical Control Unit) name, and select on interface by PC screen display in the function of PC diagnostic software, user is by clicking a certain function button on PC diagnostic equipment function selection interface, and PC diagnostic software just enters in the test interface of this function automatically;
Step 3, carry out functional test: the test interface of PC diagnostic software is presented on PC screen, by " starting test " in hit testing interface, button starts functional test to user, PC diagnostic software sends sequence of message according to set sequential to ECU (Electrical Control Unit), ECU (Electrical Control Unit) receives the action of sequence of message rear drive actuator, simultaneously by the sensor detected vehicle state on vehicle, the car status information detected is passed to PC with the form of bus message by ECU (Electrical Control Unit);
Step 4, display diagnostic result: PC receives the response message from ECU (Electrical Control Unit), PC diagnostic software is by the analytical algorithm of this response message of diagnostic data library inquiry, and according to the analytical algorithm of this response message, response message is resolved, PC diagnostic software makes evaluation according to the function of result to automobile-used device of resolving, and evaluation result is presented on the test interface of PC diagnostic software, by PC screen display to user, this diagnostic process and diagnostic result are recorded on PC by diagnostic data base by PC diagnostic software.
Step below is also comprised after described step 3:
Step one, PC access diagnosis server downloads diagnostic data: PC accesses diagnosis server by Ethernet, and download the diagnostic data in diagnosis server, PC diagnostic software utilizes diagnostic data to repair ECU (Electrical Control Unit);
Step 2, PC access diagnosis server uploads download log: the download log of diagnostic data uploaded by PC after obtaining diagnostic data, the download log that diagnosis server record is this time downloaded.
compared with prior art, the invention has the beneficial effects as follows:
1, dependable performance, cost is lower, and versatility is stronger.The ECU (Electrical Control Unit) that the automobile-used diagnostic equipment of integrated form in the present invention can diagnose different manufacturer to produce, solve dispersion on diagnostic equipment market, concentrated, skimble-scamble present situation, versatility is stronger; Solve ECU (Electrical Control Unit) diagnostic field imperfection, inaccurate, not intelligent diagnosis present situation, solve the deficiency of diagnostic equipment high cost, high flow rate, improve maintenance service personnel diagnosis efficiency, diagnostic accuracy, reduce maintenance service cost.
2, the diagnostic method in the present invention is integrated with routine diagnosis function, high level diagnostics function, data, services function and other functions, achieves function i ntegration, drastically increases the versatility of this diagnostic software.
Accompanying drawing explanation
Fig. 1 is diagnostic equipment structural schematic block diagram in the present invention.
Fig. 2 is diagnostic method process flow diagram in the present invention.
Embodiment
Illustrate that the present invention is described in further detail with embodiment below in conjunction with accompanying drawing.
See Fig. 1, the automobile-used diagnostic equipment of a kind of integrated form, comprises PC, ECU (Electrical Control Unit), diagnosis adapter and diagnosis server.
Be connected by USB connecting line between described PC and diagnosis adapter, for transmitting diagnostic data information between PC and diagnosis adapter.
Described diagnosis adapter realizes mutual conversion between usb signal and CAN signal/Lin signal and transmission; The OBD interface end of diagnosis adapter is connected by OBD connecting line with between vehicle electrically controlling unit OBD diagnostics port.
Described diagnosis server is connected with PC by network; Described diagnosis server realizes downloading EOL data and ECU (Electrical Control Unit) application data.
Run in described PC and have PC diagnostic software and diagnostic data base, described diagnostic data base is connected with PC diagnostic software by database-driven engine.Diagnostic data base is the data set for diagnosing, and diagnostic data base realizes diagnostic software rights management, provides the diagnostic data needed for diagnosis and record diagnosis to report.
See Fig. 2, the diagnostic method of the automobile-used diagnostic equipment of a kind of integrated form, comprises step below:
Step one, PC connects ECU (Electrical Control Unit) and establishes a communications link with ECU (Electrical Control Unit), the diagnosis of initialization simultaneously adapter: PC runs PC diagnostic software, select by PC the ECU (Electrical Control Unit) needing diagnosis, PC diagnostic software is called the communication configuration information identifying and obtained this ECU (Electrical Control Unit) by diagnostic data base with ECU (Electrical Control Unit) name; In connection ECU (Electrical Control Unit) process, the PC configuration information that ECU (Electrical Control Unit) communicated is written in diagnosis adapter, to complete the initialization of diagnosis adapter; Diagnosis adapter is after initialization, and PC to ECU (Electrical Control Unit) transmission request information, correspondingly receives the response message of specifying ECU (Electrical Control Unit) by diagnosis adapter.
Step 2, select diagnostic function: after connecting ECU (Electrical Control Unit), PC diagnostic software is called the functional configuration information identifying and obtained this ECU (Electrical Control Unit) by diagnostic data base with ECU (Electrical Control Unit) name, and selects on interface by PC screen display in the function of PC diagnostic software; User is by clicking a certain function button on PC diagnostic equipment function selection interface, and PC diagnostic software just enters in the test interface of this function automatically.
The diagnostic function of each ECU (Electrical Control Unit) is different, the property of there are differences, and this diagnostic method comprises: routine diagnosis function, high level diagnostics function, data, services function and other functions.
Routine diagnosis function comprises identification ECU (Electrical Control Unit), reads mark, Read fault, removing fault, DATA REASONING, the ECU (Electrical Control Unit) that identification ECU (Electrical Control Unit) is wherein loaded on identifying and diagnosing vehicle.Read mark for reading ECU (Electrical Control Unit) basic identification information, as hardware version, software version, date of manufacture, producer, production numbering etc.Read fault can read the fault of the current existence of ECU (Electrical Control Unit), namely reads existing fault, also can read having occurred of storing in ECU (Electrical Control Unit) and current fault of having repaired, and namely reads historical failure; The duty of ECU (Electrical Control Unit) when breaking down to understand more meticulously, Read fault function can also read failure freeze frame and expand frame information, freeze frame and the details expanded when frame recording fault occurs, the number of times, atmospheric pressure etc. of the time occurred as fault, mileage, generation; Maintenance personal can also consult the maintenance suggestion of each fault by Read fault function, improve maintenance efficiency.DATA REASONING shows two kinds of modes with numerical value display with oscillography to monitor the semaphore relevant to ECU (Electrical Control Unit), and provide the zone of reasonableness of current measuring-signal amount, is convenient to maintenance personal and investigates abnormal signal.
High level diagnostics function comprises I/O test, Routine test etc.The high level diagnostics function of each ECU (Electrical Control Unit) is different, need to diagnose each controller to carry out the design of differentiation, increasing oil pump self-learning function as needed for Denso aftertreatment controller, increasing maintenance lamp prompting function lamp for the engine controller needs of Bosch, but the ECU (Electrical Control Unit) of majority there is IO to test and Routine test.IO test wherein refers to that the actuator to ECU (Electrical Control Unit) controls is tested, as relay, switch etc.; Attendant changes the state of actuator by IO test, observes vehicle change and judges that whether actuator is normal.As controlled the disconnection/adhesive of air compressor relay, whether relay normally works to listen relay sound just can judge.Routine test wherein refers to the test function cooperatively interacted for detecting ECU (Electrical Control Unit) duty by ECU (Electrical Control Unit) and diagnostic equipment; When ECU (Electrical Control Unit) goes wrong, the diagnostic trouble code reading ECU (Electrical Control Unit) inside is the first step carrying out diagnosing, but have many fault ECU (Electrical Control Unit) to be None-identified, read less than diagnostic trouble code from ECU (Electrical Control Unit), the barrel wear, atomizer wearing and tearing etc. of such as engine.In this case Routine test is generally adopted; The Routine such as detecting urea pump sealing tests-builds pressure test, the present invention can make urea pump enter and build pressure test, pressure condition is built in observation, whether urea pump force value can maintain about 68Kpa, if can, urea pump favorable sealing property, if can not, urea pump sealing property is bad.
Data, services function is the function solving ECU (Electrical Control Unit) in house software fault, and it comprises three main subfunctions: EOL(rolls off the production line) data are write with a brush dipped in Chinese ink, basic data is recovered and basic data upgrading.EOL(rolls off the production line) data write with a brush dipped in Chinese ink and refer to and again demarcate ECU (Electrical Control Unit) some nominal data when rolling off the production line, as limiting vehicle speed etc.; Basic data is recovered and basic data upgrading refers to that ECU (Electrical Control Unit) internal data (mainly the application program of ECU (Electrical Control Unit) inside) is damaged or needs again to write with a brush dipped in Chinese ink the function of ECU (Electrical Control Unit) inner base data during upgrading, avoids returning factory and changes part and cause maintenance cost too high.The EOL nominal data that data, services function relates to and basic data belong to the classified papers of car load producer, the security requirement of data file is high, therefore, data file generally leaves in diagnosis server, by car load, producer directly manages, and diagnostic software is used for data, services function by networking request download data files.
Other function comprises software upgrading, diagnosis report generates and printing, user authority management, diagnosis help system.
Step 3, carries out functional test: the test interface of PC diagnostic software is presented on PC screen, and by " starting test " in hit testing interface, button starts functional test to user, and PC diagnostic software sends sequence of message according to set sequential to ECU (Electrical Control Unit); ECU (Electrical Control Unit) receives sequence of message rear drive actuator (as vehicle electromagnetic valve, relay, motor etc.) action, simultaneously by the sensor detected vehicle state on vehicle as oily rail pressure, coolant temperature etc.; The car status information detected is passed to PC with the form of bus message by ECU (Electrical Control Unit), the response message of this kind of car status information and ECU (Electrical Control Unit).
Step 4, display diagnostic result: PC receives the response message from ECU (Electrical Control Unit), PC diagnostic software by the analytical algorithm of this response message of diagnostic data library inquiry, and is resolved response message according to the analytical algorithm of this response message; PC diagnostic software makes evaluation according to the function of result to ECU (Electrical Control Unit), actuator, the automobile-used device of sensor of resolving, and evaluation result is presented on the test interface of PC diagnostic software, by PC screen display to user; This diagnostic process and diagnostic result are recorded on PC by diagnostic data base by PC diagnostic software.
Further, step below is also comprised after described step 3:
Step one, PC access diagnosis server downloads diagnostic data: PC accesses diagnosis server by Ethernet, and download the diagnostic data in diagnosis server, PC diagnostic software utilizes diagnostic data to repair ECU (Electrical Control Unit).
Step 2, PC access diagnosis server uploads download log: the download log of diagnostic data uploaded by PC after obtaining diagnostic data, as download time, downloading data title, downloading data size etc., the download log that diagnosis server record is this time downloaded.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, said structure all should be considered as belonging to protection scope of the present invention.
Claims (3)
1. the automobile-used diagnostic equipment of integrated form, comprise PC, ECU (Electrical Control Unit), it is characterized in that: also include diagnosis adapter and diagnosis server, be connected by USB connecting line between described PC and diagnosis adapter, the OBD interface end of described diagnosis adapter is connected by OBD connecting line with between vehicle electrically controlling unit OBD diagnostics port, described diagnosis server is connected with PC, described diagnosis server realizes downloading EOL data and ECU (Electrical Control Unit) application data, run in described PC and have PC diagnostic software and diagnostic data base, described diagnostic data base is connected with PC diagnostic software by database-driven engine, diagnostic data base realizes diagnostic software rights management, diagnostic data needed for diagnosis and record diagnosis report are provided.
2. a diagnostic method for the automobile-used diagnostic equipment of integrated form, is characterized in that, comprises step below:
Step one, PC connects ECU (Electrical Control Unit) and establishes a communications link with ECU (Electrical Control Unit), the diagnosis of initialization simultaneously adapter: PC runs PC diagnostic software, the ECU (Electrical Control Unit) needing diagnosis is selected by PC, PC diagnostic software is called the communication configuration information identifying and obtained this ECU (Electrical Control Unit) by diagnostic data base with ECU (Electrical Control Unit) name, in connection ECU (Electrical Control Unit) process, the PC configuration information that ECU (Electrical Control Unit) communicated is written in diagnosis adapter, to complete the initialization of diagnosis adapter, diagnosis adapter is after initialization, PC is by diagnosing adapter to ECU (Electrical Control Unit) transmission request information, correspondingly receive the response message of specifying ECU (Electrical Control Unit),
Step 2, select diagnostic function: after connecting ECU (Electrical Control Unit), PC diagnostic software is called the functional configuration information identifying and obtained this ECU (Electrical Control Unit) by diagnostic data base with ECU (Electrical Control Unit) name, and select on interface by PC screen display in the function of PC diagnostic software, user is by clicking a certain function button on PC diagnostic equipment function selection interface, and PC diagnostic software just enters in the test interface of this function automatically;
Step 3, carry out functional test: the test interface of PC diagnostic software is presented on PC screen, by " starting test " in hit testing interface, button starts functional test to user, PC diagnostic software sends sequence of message according to set sequential to ECU (Electrical Control Unit), ECU (Electrical Control Unit) receives the action of sequence of message rear drive actuator, simultaneously by the sensor detected vehicle state on vehicle, the car status information detected is passed to PC with the form of bus message by ECU (Electrical Control Unit);
Step 4, display diagnostic result: PC receives the response message from ECU (Electrical Control Unit), PC diagnostic software is by the analytical algorithm of this response message of diagnostic data library inquiry, and according to the analytical algorithm of this response message, response message is resolved, PC diagnostic software makes evaluation according to the function of result to automobile-used device of resolving, and evaluation result is presented on the test interface of PC diagnostic software, by PC screen display to user, this diagnostic process and diagnostic result are recorded on PC by diagnostic data base by PC diagnostic software.
3. the diagnostic method of the automobile-used diagnostic equipment of a kind of integrated form according to claim 2, is characterized in that, also comprise step below after described step 3:
Step one, PC access diagnosis server downloads diagnostic data: PC accesses diagnosis server by Ethernet, and download the diagnostic data in diagnosis server, PC diagnostic software utilizes diagnostic data to repair ECU (Electrical Control Unit);
Step 2, PC access diagnosis server uploads download log: the download log of diagnostic data uploaded by PC after obtaining diagnostic data, the download log that diagnosis server record is this time downloaded.
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| CN106652083A (en) * | 2016-12-21 | 2017-05-10 | 深圳市元征科技股份有限公司 | OBD (On-Board Diagnostic) device, peripheral terminal and OBD peripheral terminal expansion method and system |
| CN107145138A (en) * | 2017-04-07 | 2017-09-08 | 宁波吉利汽车研究开发有限公司 | A kind of diagnostic system suitable for different vehicle |
| CN107901854A (en) * | 2017-10-18 | 2018-04-13 | 深圳市元征软件开发有限公司 | Maintain lamp resetting method, device and computer-readable recording medium |
| CN108268024A (en) * | 2017-12-29 | 2018-07-10 | 深圳市道通科技股份有限公司 | Vehicular diagnostic method, device, terminal and computer readable storage medium |
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