CN108490921A - A kind of engine testing system - Google Patents
A kind of engine testing system Download PDFInfo
- Publication number
- CN108490921A CN108490921A CN201810368417.1A CN201810368417A CN108490921A CN 108490921 A CN108490921 A CN 108490921A CN 201810368417 A CN201810368417 A CN 201810368417A CN 108490921 A CN108490921 A CN 108490921A
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- display
- engine
- control unit
- signal
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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
-
- 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
- G05B2219/24065—Real time diagnostics
Abstract
The present invention relates to it is a kind of can be to system that various engines are tested, pass through the display configuration of engine, the configuration of test specimens row and wire jumper setting, it allows users to obtain diagnostic message based on onboard system, the display of compatibility can be also carried out by vehicle-mounted display system simultaneously, the mutually coordinated cooperation between user and tester is improved, participation of the user to Engine Block Test is also improved.Pass through the setting of wire jumper simultaneously, but also in the case of test platform is likely to occur four kinds of combinations (i.e. the output of source type input source type, the output of source type input leakage type, the output of leakage type input source type, the output of leakage type input leakage type) in the output of the On-off signal of the engine control module of different model, without substantially changing hardware, you can realize test.
Description
Technical field
The invention belongs to vehicles and ship technical field of measurement and test, more particularly, to the automobile of the occasions such as automobile and maintenance of the vessel
With ship, do not disintegrate or analog detection diagnostic system, there is the detection for being related to engine.
Background technology
The system testing of transmitter is a complexity, time-consuming work, substantially based on manual test, when consuming a large amount of
Between repeating muscle power operation, and the result of test case is all artificial to make to judge every time so that the survey that different testers obtain
Test result difference is very big, the poor repeatability of test, meanwhile, the display interface of detection is excessively single, and test gives tester's
As a result unfriendly, poor user experience is fed back, testing efficiency is low.Currently, although some test systems mainly concentrate in the market
The detection of the engine of entity vehicle, the code exported by vehicle come Judging fault, but not by simulation hardware platform,
Engine mockup and automatic test job blend, and lack a kind of test platform of versatility, to the fortune of various engines
The functions such as automatic load, configuration and the operation of row operating mode are detected.
Test for engine control module includes：
The test of the switching value, analog input/output channel of module, determines whether each channel works normally, for
Analog quantity channel will also test its measurement accuracy；
The test of module control logic, whether the control logic that test module inside is write in advance, which meets control, requires；
The test of the communication port of module, the included communication port (RS485 interfaces, CAN communication mouth etc.) of test module communicate work(
Can whether normal.
Testboard currently used for engine control module will realize above-mentioned test function, used switch, indicator light,
The devices such as potentiometer, analog signal generator build test circuit outside engine control module, and above-mentioned device is fixed
On panel, the test of above-mentioned function is realized by manual control these devices.
The test mode of existing test system is tested due to wanting manual control device, and each channel will individually be tested,
Therefore (1) tester's workload is higher, and testing efficiency is relatively low；(2) when carrying out logic testing, multiple signals are simulated simultaneously
Operation has larger difficulty when input；(3) in test process, the state that testboard is currently tested only is shown by indicator light, also not
It is enough intuitive, intuitively display switch amount it can not input the state with analog input；(4) hair of certain signal specific can only be tested
Motivation control module will make larger change, flexibility is not good enough if to test the module of unlike signal on hardware.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of test platforms to solve above-mentioned technical problem.The present invention carries
Go out a kind of the system that various engines are tested can be passed through the display configuration of engine, the configuration of test specimens row and be jumped
Line is arranged so that user can be based on onboard system and obtain diagnostic message, while can also be carried out by vehicle-mounted display system
The display of compatibility improves the mutually coordinated cooperation between user and tester, also improves user to Engine Block Test
Participation.Simultaneously by the setting of wire jumper, but also test platform is defeated in the switching value of the engine control module of different model
Enter the when of exporting be likely to occur four kinds of combinations (i.e. source type input source type output, source type input leakage type output, leakage type input source type it is defeated
Go out, the output of leakage type input leakage type) in the case of, without substantially changing hardware, you can realize test, improve the comfortable of operator
Degree.
The present invention at least has following two important inventive points：
(1) by the setting of wire jumper and test sample, it can be compatible with the test of different types of engine, need not be changed
Hardware, while whether being arranged with the detection of Engine Matching by wire jumper setting, guide and remind testing staff according to animation into
Row wire jumper is arranged, and improves work efficiency.
(2) control shown with test system by onboard system, improves the participation of user, is used convenient for maintenance and management
The daily record of family vehicle trouble.
A kind of engine testing system is provided according to an aspect of the present invention
It is characterised in that it includes：Control unit and display control unit, described control unit include central processing module,
Digital extended module and simulation expansion module；The central processing module is for loading corresponding test sample and being modeled to be detected
The vehicle motor of survey；Simulation expansion module and digital expansion module are connected with central processing unit, for receiving central processing
The digital signal exported when device module testing results sample, and the digital signal is exported to engine control module；Simulation is expanded
Module, the analog signal of output when for receiving central processing unit testing results sample are opened up, and exports the analog signal and arrives
Engine control module；Described control unit is connected with engine control module, and central processing module is additionally operable to judge to start
The type of machine control module, calls corresponding test sample, simulated engine, further judge existing jumper whether with
The type matching of engine control module；If mismatching, display control unit is notified to be shown, institute in display control unit
Including display the jumper of mistake is prompted, and show the animation of correct jumper, guiding user jumps
Line operates；Also there is display control unit external unit, the external unit to be used to by test result in onboard system, carry out
The test result that subregion shows, and subregion is shown is mutually compatible with onboard system others display data, external unit tool
Standby external interface, for loading extender script or test sample.
The engine testing system, further comprises：
Control unit sends digital switch quantity letter by the command operation in testing results sample, to engine control module
Number or analog signal, control unit receive the feedback signal of engine control module, and by the status display of real-time testing aobvious
Show on the display in control unit.
The engine testing system further comprises：
Control unit sends accelerator pedal signal, the exhaust that simulation obtains by testing sample, to engine control module
Temperature signal, intake air temperature signals, boost pressure signal, oil temperature signal and engine oil pressure signal.
The engine testing system, further comprises：
When the feedback signal of output and preset state are not inconsistent, display control unit sends out alarm by display
The alarm signal is sent to the in-vehicle display system of tested vehicle, is shown by signal, display control unit simultaneously.
The engine testing system, further comprises：
If alarm signal occurs, according to pre-set diagnosis rule, the seriousness of failure is analyzed, according to failure classes
The difference of type carries out the prompting of alternative sounds.
The engine testing system, further comprises：
The display control unit controls the display in onboard system, identifies the display parameters in onboard system,
The display system of the display figure of fault detection address and onboard system is matched.
The engine testing system, further comprises：
In the display system of onboard system, simultaneous display and storage fault message preserve detection fault message daily record, and
It is shown in onboard system.
Description of the drawings
Embodiment of the present invention is described below in conjunction with attached drawing, wherein：
Fig. 1 is the system framework figure of this test system.
Fig. 2 is the flow diagram of this test system.
Specific implementation mode
The embodiment of the test system of the present invention is described in detail with reference to the accompanying drawings.
As shown in Figure 1, this test system includes a power unit and control unit and display control unit, control unit
Including central processing module, digital quantity expansion module, simulation expansion module, control unit has DO interfaces, is connect in its DO interface
There are 16 DC 24V relays；Display control unit, including display are specifically as follows the 7 cun of touch screens led to using prestige synthetic fibre
Curtain TK6071；Display is attached by the serial ports of control unit with touch screen, and display control unit further includes one external
Unit, the external unit are connected with the in-vehicle display system of tested vehicle, the display result for that will test display unit
Display in onboard system is compatible with, to realize display of the display result in in-vehicle display system, the outer order
Member has by test result in onboard system, carries out subregion and shows, shown subregion shows aobvious with onboard system
According to being mutually compatible with, external unit can be connected by interface with other devices registration, be convenient for load test program code or test
Sample.The S7-200CN series of PLC or others DSP of Siemens may be used in specific control unit.Between each unit
Connection can be attached by CAN bus mode.
Fig. 2 is the illustrative execution step of test system, and specific implementation steps can be：
Step 1：By external interface load test sample or directly initiate test sample in control unit.Control is single
Member identifies the type of engine, and loads corresponding test sample, to be modeled to the engine of detection vehicle.Needs are connect
The engine control module entered is detected and differentiates, when the type and existing wiring configuration for judging engine control module
It when mode mismatches, is prompted on the display in display control unit, prompt user and shows correct wire jumper
Mode, and display operation animation over the display carry out wire jumper operation convenient for user.
The On-off signal and output type of engine control module divide source type and leakage type, then the engine of different model
The On-off signal output of control module is then possible to four kinds of combinations (the i.e. output of source type input source type, source type input leakage type occur
Output, the output of leakage type input source type, the output of leakage type input leakage type), this test system need to only adjust two wire jumpers, and (control is defeated
Enter type, a control output type).It analog quantity part equally can be defeated to engine control module by way of wire jumper
Enter 4-20mA current signals, 0-5V voltage signals or resistance signal.By means of this, technical staff can hold for engine model
Row matching, the hardware modifications being arranged by wire jumper can test the engine control module of different model.
The signal of the wherein test sample is sent to engine control module, it may include reading automobile computer version information,
Automobile fault code is removed automobile fault code, car data current test, final element test, adaptive adjustment and is matched, and is elected to
After a fixed test event, control unit can directly invoke automobile electronic control unit by the external unit in display control unit
Internal data, to show dynamic result, subtest diagnostic operation on display or screen.
During control unit and engine control module are established and connected, if response message frame is incorrect, communicate
Connection count parameter adds one, then judges to get in touch with whether count parameter is more than setting value, determines whether to continue communication connection,
If not above continuing to get in touch with, back to the contact of selection test connection cables, continuing to initiate communication connection；If more than setting
Count parameter is got in touch with, then display can not establish communication connection over the display, while prompt is pressed " exiting " key and returned over the display
It returns and please investigate the cause or resurvey and is primary.By the monitoring of connection, avoid external unit with control unit of engine because not just
Really connect and feedback signal, the occupancy for causing " false-alarm " to be connected with system.Display can be touch display screen.
Step 2：By testing the command operation in sample, switching value or analog quantity are sent to engine control module
Signal.
Control unit sends accelerator pedal signal, the exhaust that simulation obtains by testing sample, to engine control module
Temperature signal, intake air temperature signals, boost pressure signal, oil temperature signal, engine oil pressure signal, rail pressure signal and in it is cold after
Water temperature signal etc. is fed back so that engine control module is after receiving corresponding signal.Analog signal or digital mould
Quasi- signal can be obtained by A/D converter.Those skilled in the art know that corresponding signal can pass through corresponding sensor
It obtains, can also be directly input to the parameter by Matla/simulink modeling and simulating softwares by the parameter set
Hardware platform obtains.
Step 3：The feedback signal for receiving engine control module, by the status display tested in real time in test system
On the display of display control unit, while by test signal by the pattern of wireless transmission, vehicle is sent to by external unit
On indicator screen in loading system, the display parameters of external unit identification onboard system are called, the status information of test is adjusted
Display in vehicle on-board system.Optionally, the external unit in the display control module can carry out the drafting of figure, according to
According to the signal of feedback, corresponding warning figure or the Long-term change trend figure of data are drawn.
Step 4：When the feedback signal of output and preset state are not inconsistent, the display in display control unit
Alarm signal is sent out, the alarm signal of the display can be supplied to survey in such a way that figure flickers or in the form of alarm ring
Examination personnel or user.Corresponding caution signal etc. can be sent to vehicle driver or in vehicle in a manner of data parameters
Display device in loading system is shown.The display device or display can be touch display screen.
Further, if alarm sounds be faulty generation, according to diagnosis rule, fault analysis and judgement it is serious
Property, if beyond the parameter area normally set, it is judged as catastrophe failure, shows catastrophe failure over the display, adjust simultaneously
Buzzer is set to send out rapid sound；If according to diagnosis rule or priority level, it can be determined that go out set fault type, then
Fault type title is shown over the display, while buzzer being made to send out different alarm sounds.
Step 5：When warning information is more, tester or user can export according to pre-set warning mode
The producing cause and code of test report and failure.The test report information can pass through mobile radio communication in a shared manner
Network or wifi etc. are shared with vehicle driver.
In conclusion the test system of the present invention, can be carried out by the control unit and display control unit that it includes
The detection of engine type matches, to when the type for detecting setting mismatches, be able to carry out the wire jumper setting of animation,
Convenient for tester carry out wire jumper configuration, while by the configuration of wire jumper but also user test device can adapt to it is different
Engine type can match the input and output signal of different engine control module without doing more hardware modifications
Pattern.Controlled simultaneously by the display of external unit, convenient for when engine is executed and is tested, with driver in the car into
Row is linked up, and simultaneous display and storage fault message, are also conducive to the storage for fault message daily record, convenient for driving in onboard system
The person of sailing understands the case where engine failure.Simultaneously by the sub- display control in external unit, test system is enabled to be based on
The figure of the display of web or http browser formats is mutually coordinated with the display figure in onboard system, is watched convenient for user.This
Field technology personnel know that after converting display system, layout can be all varied from different figures, to influence coordination
Match, and directly controlled in outer order member so that figure can match with onboard system, improve user experience.
It will be apparent that although attached drawing 1 is to be illustratively described vehicle testing system, the above technical scheme of the present invention equally makes
For launching system peculiar to vessel, those skilled in the art know, vehicle-mounted in Fig. 1 in the detection suitable for launching system peculiar to vessel
System could alternatively be shipborne system, and tested engine could be provided as the engine of tested ship, the then cooperation of display
It can be matched for the display system of shipborne system.
It is understood that although the present invention has been disclosed in the preferred embodiments as above, above-described embodiment not to
Limit the present invention.For any person skilled in the art, the case where not departing from technical solution of the present invention range
Under, many possible changes and modifications, or modification all are made to technical solution of the present invention using the technology contents of the disclosure above
For the equivalent embodiment of equivalent variations.Therefore, every content without departing from technical solution of the present invention, technology according to the present invention are real
It verifies any simple modifications, equivalents, and modifications made for any of the above embodiments, still falls within technical solution of the present invention protection
In range.
Claims (8)
1. a kind of engine testing system
It is characterised in that it includes：Control unit and display control unit, described control unit include central processing module, number
Expansion module and simulation expansion module；The central processing module is for loading corresponding test sample and being modeled to detected
Vehicle motor；Simulation expansion module and digital expansion module are connected with central processing unit, and digital extended module is for receiving
The digital signal exported when CPU module testing results sample, and export the digital signal and control mould to engine
Block；Expansion module, the analog signal of output when for receiving central processing unit testing results sample are simulated, and exports the mould
Intend signal to engine control module；Described control unit is connected with engine control module, and central processing module is additionally operable to
The type for judging engine control module calls corresponding test sample, simulated engine further to judge existing wire jumper side
Formula whether the type matching with engine control module；If mismatching, display control unit is notified to be shown, display control
Display included in unit prompts the jumper of mistake, and shows the animation of correct jumper, and guiding is used
Family carries out wire jumper operation；Also there is display control unit external unit, the external unit to be used for test result in vehicle-mounted system
In system, the test result that progress subregion shows, and subregion is shown is mutually compatible with onboard system others display data, outside
Order member has external interface, for loading extender script or test sample.
2. engine testing system as described in claim 1, further comprises：Control unit passes through the life in testing results sample
Operation is enabled, sends digital switch quantity signal or analog signal to engine control module, control unit receives engine and controls mould
The feedback signal of block, and by the status display of real-time testing on the display in display control unit.
3. the engine testing system as claimed in claim 2 further comprises：
Control unit sends accelerator pedal signal, the delivery temperature that simulation obtains by testing sample, to engine control module
Signal, intake air temperature signals, boost pressure signal, oil temperature signal and engine oil pressure signal.
4. engine testing system as claimed in claim 3, further comprises：Feedback signal when output and preset shape
When state is not inconsistent, display control unit sends out alarm signal by display, and display control unit sends the alarm signal simultaneously
To the display system of the onboard system of tested vehicle, shown.
5. engine testing system as claimed in claim 4, further comprises：
If alarm signal occurs, according to pre-set diagnosis rule, the seriousness of failure is analyzed, according to fault type
Difference carries out the prompting of alternative sounds.
6. engine testing system as claimed in claim 5, further comprises：The display control unit, in onboard system
Display controlled, the display parameters in onboard system are identified, by the display figure and onboard system of fault detection address
Display system matches.
7. engine testing system as claimed in claim 6, further comprises：In the display system of onboard system, synchronize aobvious
Show and store fault message, preserves detection fault message daily record, and be shown in the display system of onboard system.
8. such as the engine testing system of any one of claim 1-7, further comprises, onboard system is replaced with
Tested vehicle is replaced with tested ship by shipborne system, to by the engine testing system, be applied to shipborne system
In.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810368417.1A CN108490921B (en) | 2018-04-23 | 2018-04-23 | A kind of engine testing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810368417.1A CN108490921B (en) | 2018-04-23 | 2018-04-23 | A kind of engine testing system |
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| CN108490921A true CN108490921A (en) | 2018-09-04 |
| CN108490921B CN108490921B (en) | 2019-03-12 |
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| CN201810368417.1A Active CN108490921B (en) | 2018-04-23 | 2018-04-23 | A kind of engine testing system |
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| CN109799092A (en) * | 2018-12-17 | 2019-05-24 | 江苏恩达通用设备有限公司 | Engine control module testboard |
| CN112053039A (en) * | 2020-08-17 | 2020-12-08 | 安徽江淮汽车集团股份有限公司 | Engine oil dilution risk assessment method, device, equipment and storage medium |
| CN112179405A (en) * | 2020-09-01 | 2021-01-05 | 河北汉光重工有限责任公司 | Detection system for testing ship air intake and exhaust system |
| CN113341938A (en) * | 2021-07-01 | 2021-09-03 | 阳光电源股份有限公司 | Automobile controller test system and control method thereof |
| CN114610003A (en) * | 2022-04-18 | 2022-06-10 | 深圳市元征软件开发有限公司 | Vehicle diagnosis method, apparatus, device, and medium |
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|---|---|
| CN108490921B (en) | 2019-03-12 |
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Address after: 226600 No. 6 Xiyuan Avenue, Haian Town, Haian City, Nantong City, Jiangsu Province Patentee after: Jiangsu Enda General Equipment Group Co., Ltd Address before: No. 6 West Road Haian town Haian County Jiangsu city Nantong province 226600 Patentee before: JIANGSU ENDA GENERAL EQUIPMENT Co.,Ltd. |