CN107037741A - Marine diesel oil/LNG dual fuel engine ECU hardware-in-loop simulation systems - Google Patents
Marine diesel oil/LNG dual fuel engine ECU hardware-in-loop simulation systems Download PDFInfo
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- CN107037741A CN107037741A CN201710212114.6A CN201710212114A CN107037741A CN 107037741 A CN107037741 A CN 107037741A CN 201710212114 A CN201710212114 A CN 201710212114A CN 107037741 A CN107037741 A CN 107037741A
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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
- G05B17/00—Systems involving the use of models or simulators of said systems
- G05B17/02—Systems involving the use of models or simulators of said systems electric
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- Automation & Control Theory (AREA)
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Abstract
Dual fuel engine model is run the invention discloses a kind of marine diesel oil/LNG dual fuel engine ECU hardware-in-loop simulation systems, including industrial control system and PLC signal systems, in host computer, and slave computer is sent to by usb bus.Slave computer turns RS485 modules by USB and carries out usb data and the mutual conversion of RS485 data.USB turns RS485 modules and is connected with analog output module and OCROBOT microcontrollers by RS485 buses.OCROBOT microcontrollers are connected with PLC by optical coupling isolator.The current signal that PLC is received and processing OCROBOT microcontrollers and analog output module are produced.PLC is connected with Arduino microcontrollers by serial communication bus.Have the advantages that use is flexible, expansibility is good, stability is high, while reducing its development difficulty.
Description
Technical field
The present invention relates to engine hardware assemblage on-orbit technology, and in particular to a kind of marine diesel oil/LNG dual fuel engines
Electronic control unit (ECU) hardware-in-loop simulation system.
Background technology
Diesel oil/LNG the dual fuel engines for mixing burning natural gas are the study hotspots of current dual fuel engine.Traditional electricity
Control system design approach needs to carry out experiment repeatedly on test-bed, it is difficult to ensures the realization of all operating modes and debugged
The repeatability of operating mode needed for journey, while also extending the construction cycle, is unfavorable for electric-control system and is updated immediately following market.Cause
This hardware-in-loop simulation system by core of virtual engine turns into the inevitable requirement that dual fuel engine control strategy is developed.
The country has just just risen to the systematic research of dual fuel engine electronic control unit (ECU) hardware-in-loop simulation at present
Step, generally using PC+designed, designed control panel framework.In this frame construction, using PC so that system excessively
Burden；In the control panel that each function is concentrated on to a designed, designed, the difficulty of exploitation is not only added, the stability of its own
Yet need further checking, and after being unfavorable for hardware replacing and the popularization of whole system；Voluntarily set in mentality of designing
The control panel of meter is difficult to adapt to remaining engine model, and expansion is poor, while current dual fuel engine hardware-in-loop simulation system
The design of system does not all consider the simulation of progress engine dangerous working condition, and this causes the defencive function of electric control system of dual-fuel engine
It can not be verified.And this is all unfavorable for dual fuel engine electronic control unit (ECU) hardware-in-loop simulation system in the future
Industrialization.
The content of the invention
It is an object of the invention to overcome above-mentioned dual fuel engine electronic control unit (ECU) hardware-in-loop simulation system
The problem of mentality of designing is with structure uses flexible, the hardware-in-loop simulation system that expansibility is good, stability is high there is provided a kind of
System, while reducing its development difficulty.
The present invention realizes that the technical scheme of above-mentioned purpose is：Including industrial control system and programmable logic controller (PLC)
Signal system, industrial control system is divided into host computer and slave computer, and host computer is industrial computer, slave computer including USB turn RS485 modules,
Analog output module, OCROBOT microcontrollers, optical coupling isolator.PLC signal systems include programmable logic controller
(PLC), Arduino microcontrollers.Dual fuel engine model is run in host computer slave computer is sent to by usb bus.Under
Position machine turns RS485 modules by USB and carries out usb data and the mutual conversion of RS485 data.USB turns RS485 modules and analog quantity
Output module and OCROBOT microcontrollers are connected by RS485 buses.OCROBOT microcontrollers are controlled with programmable logic
Device (PLC) is connected by optical coupling isolator.Programmable logic controller (PLC) is received and processing OCROBOT microcontrollers
The current signal that device and analog output module are produced.Programmable logic controller (PLC) passes through with Arduino microcontrollers
Serial communication bus is connected.
By such scheme, described industrial computer is instructed as main website using MODBUS RTU master station protocols.The mould of slave computer
Analog quantity output module and OCROBOT microcontrollers are respectively as two slave stations.
By such scheme, the request message that described analog output module is sent according to slave station protocol, identification host computer,
The data of host computer transmission are handled, corresponding analog quantity current signal is exported.All analog signalses all define and are output as 0~
20mA current signal.
By such scheme, the request report that described OCROBOT microcontrollers are sent according to slave station protocol, identification host computer
Text, the data of processing host computer transmission export corresponding data signal, and control the work of every indicator lamp in industrial control box.
The control signal that OCROBOT microcontrollers processing programmable logic controller (PLC) is produced, MODBUS RTU are passed through by result
Agreement is returned to host computer.
By such scheme, the signal that described optical coupling isolator is inputted to OCROBOT microcontrollers is isolated, and plays guarantor
Protect the function of OCROBOT microcontrollers.The signal that OCROBOT microcontrollers are inputted is changed, and exports programmable logic
The electric signal that controller (PLC) signal system can be recognized.The signal that programmable logic controller (PLC) is inputted is turned
Change, the electric signal that output OCROBOT microcontrollers can be recognized.
By such scheme, described Arduino microcontrollers check request message check code by serial port communicating protocol
Afterwards, the data from programmable logic controller (PLC) are received, and return to control result.Programmable logic controller
(PLC) according to the corresponding control electric signal of control result output.
The present invention change before hardware-in-loop simulation system framework, foundation be more applicable for dual fuel engine electricity
The hardware-in-loop simulation system of sub-control unit (ECU) exploitation.In structure, using industrial computer add the flexibility ratio of system with
Stability；Independently developed control panel is replaced using the OCROBOT microcontrollers and analog output module of standardized production, will
Function is divided, and improves the stability of system, reduces development difficulty, shortens the construction cycle.Meanwhile, the framework, which has been reserved, to be connect
Mouthful, the emulation demand of different engine model can be satisfied with.Facilitate in the future hardware-in-loop simulation system batch production and
It is industrialized to use.Have the advantages that use is flexible, expansibility is good, stability is high, while reducing its development difficulty.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is industrial control system structural representation of the present invention.
Fig. 3 is industrial control system OCROBOT microcontroller architecture schematic diagrames of the present invention.
Fig. 4 is industrial control system analog output module structural representation of the present invention.
Fig. 5 is programmable logic controller of the present invention (PLC) signal system structural representation.
In figure：1. industrial computer, 2.USB turns RS485 modules, 3.OCROBOT microcontrollers, 4. analog output modules, 5.
Optical coupling isolator, 6. permission jet indicator lamps, 7. run indicator, 8. alarm lamps, 9. buzzers, 10. tach signals,
11. camshaft signal, 12. security protections shut-off button, 13.LNG duty cycle signals, 14. throttle rack position signals, 15. exhaust temperature
Spend signal, 16. coolant water temperature signals, 17. gaseous-pressure signals, 18. programmable logic controllers (PLC), 19.Arduino
Microcontroller.
Embodiment
For the 26S Proteasome Structure and Function of the present invention is expanded on further, the present invention is elaborated below in conjunction with accompanying drawing.
As shown in figure 1, the present invention includes industrial control system and programmable logic controller (PLC) signal system, industry control system
System includes industrial computer 1, USB and turns RS485 modules 2, OCROBOT microcontrollers 3, analog output module 4, optical coupling isolator 5.Work
Control machine 1 turns RS485 modules 2 and OCROBOT microcontrollers 3 and the structure communication network of analog output module 4 by USB, complete
Into data transfer；OCROBOT microcontrollers 3 export signal need by optical coupling isolator 5 carry out voltage conversion after input can
Programming logic controller (PLC) signal system；Programmable logic controller (PLC) signal system includes programmable and patrolled
Collect controller (PLC) 18, Arduino microcontrollers 19.Programmable logic controller (PLC) 18 is received from industrial control system production
Raw signal, by being connected with Arduino microcontrollers 19, completes data transmission and processing.Programmable logic controller (PLC)
The control signal of signal system output, which is also passed through, carries out voltage conversion after optical coupling isolator 5, OCROBOT microcontrollers are inputted afterwards
3；Optical coupling isolator 5 not only carries out voltage conversion, also functions to the effect of protection OCROBOT microcontrollers 3.
As shown in Fig. 2 industrial computer 1, will by way of USB turns RS485 modules 2 using Modbus communications in industrial control system
OCROBOT microcontrollers 3 and analog output module 4 combine composition communication network with industrial computer 1, complete data transfer.
As shown in figure 3, digital quantity signal all in industrial control system is all realized by OCROBOT microcontrollers 3.Wherein export
Signal have permission jet indicator lamp 6, run indicator 7, alarm lamp 8, buzzer 9, tach signal 10, camshaft signal
11；Input signal includes the security protection shut-off button 12 and programmable logic controller (PLC) for imitating security protection dangerous situation
The LNG duty cycle signals 13 of signal system output.When the state that engine mockup is run can be shown by every indicator lamp；Peace
Anti- shut-off button 12 is used for the dangerous working condition of simulated engine, and programmable logic controller (PLC) signal system is tested with this
The reaction made under dangerous industry control；OCROBOT microcontrollers 3 can be calculated LNG duty cycle signals 13, show that it sprays
Engine mockup is sent data back to by Modbus communication networks after pulsewidth, to change engine mockup operating condition.Simultaneously
OCROBOT microcontrollers 3 have reserved remaining interface, and different type of machines engine emulation experiment can be carried out directly on the framework.
As shown in figure 4, analog signalses all in the present invention are all realized by analog output module 4.Wherein export
Signal includes throttle rack position signal 14, exhaust temperature signal 15, coolant water temperature signal 16, gaseous-pressure signal 17.Together
When analog output module 4 reserved remaining interface, different type of machines engine emulation experiment can be carried out directly on the framework.
As shown in figure 5, tach signal 10, camshaft signal 11, throttle rack position signal 14 produced by industrial control system,
Exhaust temperature signal 15, coolant water temperature signal 16, input programmable logic controller (PLC) signal of gaseous-pressure signal 17 system
Programmable logic controller (PLC) 18 in system.Programmable logic controller (PLC) 18 and Arduino microcontrollers 19
After data exchange completes data calculating processing, LNG duty cycle signals are exported by programmable logic controller (PLC) 18
13。
Claims (6)
1. a kind of marine diesel oil/LNG dual fuel engine ECU hardware-in-loop simulation systems, it is characterised in that：Including industrial control system
With programmable logic controller (PLC) signal system, industrial control system is divided into host computer and slave computer, and host computer is industrial computer
(1), slave computer turns RS485 modules (2), analog output module (4), OCROBOT microcontrollers (3), light-coupled isolation including USB
Device (5)；Programmable logic controller (PLC) signal system includes programmable logic controller (PLC) (18), Arduino
Microcontroller (19)；Dual fuel engine model is run in host computer slave computer is sent to by usb bus；Slave computer passes through
USB turns RS485 modules (2) and carries out usb data and the mutual conversion of RS485 data；USB turns RS485 modules (2) and analog quantity is defeated
Go out module (4) and OCROBOT microcontrollers (3) are connected by RS485 buses；OCROBOT microcontrollers (3) are patrolled with programmable
Controller (PLC) (18) is collected by optical coupling isolator (5) to be connected；Programmable logic controller (PLC) (18) receive and
Handle the current signal that OCROBOT microcontrollers (3) and analog output module (4) are produced；Programmable logic controller
(PLC) (18) are connected with Arduino microcontrollers (19) by serial communication bus.
2. marine diesel oil according to claim 1/LNG dual fuel engine ECU hardware-in-loop simulation systems, its feature exists
In：Described industrial computer (1) is instructed as main website using MODBUS RTU master station protocols；The analog output module of slave computer
And OCROBOT microcontrollers (3) are respectively as two slave stations (4).
3. marine diesel oil according to claim 1 or 2/LNG dual fuel engine ECU hardware-in-loop simulation systems, it is special
Levy and be：The request message that described analog output module (4) is sent according to slave station protocol, identification host computer, is handled upper
The data of machine transmission, export corresponding analog quantity current signal；All analog signalses all define the electric current for being output as 0~20mA
Signal.
4. marine diesel oil according to claim 3/LNG dual fuel engine ECU hardware-in-loop simulation systems, its feature exists
In：The request message that described OCROBOT microcontrollers (3) are sent according to slave station protocol, identification host computer, processing host computer is passed
Defeated data, export corresponding data signal, and control the work of every indicator lamp in industrial control box；OCROBOT microcontrollers (3)
The control signal that programmable logic controller (PLC) (18) is produced is handled, result is returned to by MODBUS rtu protocols
Host computer.
5. marine diesel oil according to claim 4/LNG dual fuel engine ECU hardware-in-loop simulation systems, its feature exists
In：The signal that described optical coupling isolator (5) is inputted to OCROBOT microcontrollers (3) is isolated, and plays protection OCROBOT
The function of microcontroller (3)；The signal that OCROBOT microcontrollers (3) are inputted is changed, output programmable logic control
The electric signal that device (PLC) signal system can be recognized；The signal that programmable logic controller (PLC) (18) is inputted is turned
Change, the electric signal that output OCROBOT microcontrollers (3) can be recognized.
6. marine diesel oil according to claim 5/LNG dual fuel engine ECU hardware-in-loop simulation systems, its feature exists
In：Described Arduino microcontrollers (19) check after request message check code that reception comes from can by serial port communicating protocol
The data of programming logic controller (PLC) (18), and return to control result；Programmable logic controller (PLC) (18) root
According to the corresponding control electric signal of control result output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710212114.6A CN107037741A (en) | 2017-04-01 | 2017-04-01 | Marine diesel oil/LNG dual fuel engine ECU hardware-in-loop simulation systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710212114.6A CN107037741A (en) | 2017-04-01 | 2017-04-01 | Marine diesel oil/LNG dual fuel engine ECU hardware-in-loop simulation systems |
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| CN107037741A true CN107037741A (en) | 2017-08-11 |
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|---|---|---|---|
| CN201710212114.6A Pending CN107037741A (en) | 2017-04-01 | 2017-04-01 | Marine diesel oil/LNG dual fuel engine ECU hardware-in-loop simulation systems |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508840A (en) * | 2018-06-15 | 2018-09-07 | 顺德职业技术学院 | A kind of experimental provision of robot workstation's electric control system |
| CN109062192A (en) * | 2018-09-19 | 2018-12-21 | 中山市集效智能科技有限公司 | A kind of LNG ship security control system simulating test device |
| KR20200021632A (en) * | 2018-08-21 | 2020-03-02 | 주식회사 현대케피코 | Multiple access system and method for preventing time delay of automation calibration tool |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508840A (en) * | 2018-06-15 | 2018-09-07 | 顺德职业技术学院 | A kind of experimental provision of robot workstation's electric control system |
| KR20200021632A (en) * | 2018-08-21 | 2020-03-02 | 주식회사 현대케피코 | Multiple access system and method for preventing time delay of automation calibration tool |
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| CN109062192A (en) * | 2018-09-19 | 2018-12-21 | 中山市集效智能科技有限公司 | A kind of LNG ship security control system simulating test device |
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Application publication date: 20170811 |