CN104570762B - Electronic simulation system for electronic ejection controller operating environment of diesel locomotive - Google Patents
Electronic simulation system for electronic ejection controller operating environment of diesel locomotive Download PDFInfo
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- CN104570762B CN104570762B CN201410691654.3A CN201410691654A CN104570762B CN 104570762 B CN104570762 B CN 104570762B CN 201410691654 A CN201410691654 A CN 201410691654A CN 104570762 B CN104570762 B CN 104570762B
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Abstract
The invention discloses an electronic simulation system for an electronic ejection controller operating environment of a diesel locomotive. An upper computer is used for simulatting a man-machine interface of the locomotive, controlling a test platform, and receiving, processing, displaying and storing test information; a lower computer is used for executing a target working condition requirement instruction which is given by the upper computer, outputting simulated parameter signals of various parts of the locomotive to an electronic ejection controller, detecting and monitoring the operation conditions and the parameter conditions of the parts of the system, and submitting a control calculation result to the upper computer; the upper computer communicates with the lower computer by modbusRTU (remote terminal unit); the lower computer communicates with the electronic ejection controller by a CAN (controller area network); an electronic ejection executing simulation device adopts a structure of an electromagnetic valve simulation coil equipped with an armature and a closing switch circuit. Therefore, the real test experiment cost of a vehicle-mounted electronic ejection controller is greatly reduced, the safety accident risk in actual operation of the locomotive is completely avoided, a comprehensive examination of the operation conditions of the electronic ejection controller and a locomotive system by testing personnel is facilitated, and the reconnection experiment of the locomotive is greatly simplified.
Description
Technical field
The present invention relates to a kind of diesel locomotive EFI controller operational environment electronic simulation system, belongs to diesel locomotive manufacture
Technical field.
Background technology
Using the diesel locomotive of electronic injection diesel engine, EFI controller is one of its core component.Need to be made for different
Especially set with demand, running environment and accurate adjustment EFI controller parameter, substantial amounts of survey is carried out to the software and hardware of EFI controller
Examination and examination, precision calibration and amendment its parameter MAP up to up to a hundred.
Way general at present is the water resistance running experiment or actual track running experiment for carrying out locomotive whole-vehicle, by anti-
The ruuning situation of multiple many experiments examination locomotive electric spray control system and the possibility of improvement upgrading.Specific practice is by electricity to be measured
The actual electric spray control system for accessing locomotive of spray controller, the table of electric spray control system is observed by the actual motion of locomotive
It is existing, and then the parameter of EFI controller is finely tuned in small step, strive making locomotive to reach optimal operation and demand claimed condition.If electric
The hardware of spray controller has carried out change and adjustment also needs to carry out prolonged reliability operation to survey real, locomotive needs repeatedly,
Long-time is actual in orbit.This way there are problems that following some：
1. Expenses Cost is huge.Because locomotive operation needs a large amount of complementary conditions and facility, generally require to organize and dispatch
A large amount of staff and equipment are tested the goods and materials that are related to and department are often many to maintain the operation of locomotive whole-vehicle, thus experiment is prepared
Phase is often longer, it is difficult to which normality is frequently carried out.
2. security risk be present.If the EFI controller changed has been made to software and hardware system, and directly entrucking carries out operation in fact
Test, often there is larger failure risk.Even transport used EFI controller, the adjusting parameter in locomotive operation,
It is likely to, because parameter error causes failure, even result in locomotive operation security incident.
3. testing efficiency is relatively low.Due to the limitation in intra-locomotive space, it is difficult to which it is big to obtain to arrange enough testing equipments
Amount test data.And in view of locomotive operation safety, commissioning staff needs extremely carefully to adjust each parameter, is guarantee machine
Car safe operation often has to abandon the change trial to some parameters.
4. again connection experiment is difficult.Because inherently extremely complex, vehicle-mounted EFI under such conditions is tested in locomotive double heading
Controller experiment is then more difficult, it is difficult to repeats, persistently carry out.
In recent years, with the fast development of computer and electronic simulation technology, in technical field of diesel locomotive in EFI
The assemblage on-orbit of combustion locomotive car load environment has carried out exploration (Han Yinan etc., the diesel locomotive electronic injection diesel engine work of non-train experiment
Condition is changed and control strategy modeling and simulation. the online .2013.03.29 of Chinese science and technology paper).In diesel engine electric control system exploitation
During, in order to shorten the development time, attempt automatically controlled Imitation Development Platform (Liu Jianshe, the locomotive diesel of various experiment cell-types
Some problem research [D] of Electrical Control system development. Wuhan：Wuhan University of Technology, 2011.5).The typical hardware of one of which
Assemblage on-orbit development platform form, is exactly operational monitoring and communication program in PC, and engine mockup operates in independent design
Embedded system on (see Fig. 1).This emulation platform is by PC, Diesel Engine Model operation ECU and Diesel Engine Control ECU structure
Into, set up Diesel Engine Model and Controlling model using Matlab/Simulink, by model conversion it is embedded after software emulation checking
The processor of the program code that formula processor is supported, wherein Diesel Engine Model operation typically selects DSP, PC to adopt labview
Set up monitoring interface.But, there is problems with this scheme：
1. interrupt response ability is not possessed because windows systems belong to time sharing operating system, it is frequent when occurring in bus
And during substantial amounts of communication information, although many data are the communication between Diesel Engine Model and controller ECU, single
Still can judge that PC also can constantly gather judgement by each node response in bus.Windows systems are unable to interrupt response only
System resource allocation strategy can be constantly changing, response at times judges these communication informations.This can have a strong impact on PC operation
User program and data record, the efficiency of analysis, operating system time-sharing process is may also result in when high speed mass data is communicated
Difficult and failure, that is, PC deadlock.
2. same, based on the principle of windows Time-sharing controls, PC program can regularly send data to bus so as to it is total
Communicated between other nodes on line.And the unified buss in system are like busy A-road, each node
All the idle period in bus is being found to send the data of oneself.Ecu controllers and slave computer Single Chip Microcomputer (SCM) system are all bases
In form work is interrupted, other tasks are processed in bus busy, once bus free will produce interruption, send oneself
Data.This mode can use relatively nervous the resource of Single Chip Microcomputer (SCM) system with effectively.But pc machine windows systems are not
Possess interruption control ability, it can organize distributing system resource, be the transmission distribution of the data independent period, timing response is held
OK.And if now bus is in busy state, pc machines or waiting state is entered, or ignore this data is activation.This meeting
Cause communication efficiency to decline, lose data and the operation of PC program is slow.
The content of the invention
The purpose of the present invention is exactly the deficiency for overcoming above-mentioned prior art, there is provided a kind of diesel locomotive EFI controller operation
Ambient electronic analogue system.
The object of the present invention is achieved like this：A kind of diesel locomotive EFI controller operational environment electronic simulation system bag
Host computer and slave computer are included, wherein：
Host computer simulates locomotive man-machine interface, controls test platform, receives, processes, shows and store test information；
Slave computer performs the target operating condition requirement instruction that host computer is provided, and to EFI controller each portion of locomotive of simulation is exported
Point parameter signal, detection, the operating condition of monitoring system and each several part parameter situation, will control result of calculation submit to it is upper
Machine；
It is characterized in that：
Communicated using modbusRTU between host computer and slave computer, it is logical using CAN between slave computer and EFI controller
News；
Also include that EFI performs analog, the device is furnished with armature and adhesive on-off circuit knot for electromagnetic valve former-wound coil
Structure, during armature adhesive, normally opened contact closure, normally-closed contact disconnects；When removing ferrum release, normally opened contact disconnects, and normally-closed contact is closed
Close, former-wound coil input is connected to the outfan of EFI controller, contact circuit output is connected to the detection input of slave computer,
The work-based logic of simulation electric-spraying fuel pump,.
In order to the purpose of the present invention is better achieved, be serially connected with the electromagnetic valve former-wound coil circuit by adjustable resistance and
Tunable capacitor adjustment compensation circuit in parallel.
In order to be better achieved the purpose of the present invention, when locomotive double heading is tested, the host computer by using Modbus TCP
Two computers composition of IP communications protocol.
Technical scheme, with advantages below：
1st, can complete to carry out EFI controller test frequent, lasting in car load environment in laboratory and examination is real
Test.
2nd, the cost of vehicle-mounted EFI controller actual measurement experiment is greatly lowered, while also reduce being wanted to experimenter
Ask.
3rd, can with authentic simulation locomotive ruuning situation and environment, but the security incident wind without locomotive actual motion completely
Danger.
4th, operator carry out the experiment stride of EFI controller parameter setting can be bigger, it is in hgher efficiency.In addition this
Bright technical scheme is also equipped with parameter storage and experimental record function, can load various measuring instruments, facilitates tester complete
EFI controller and locomotive system ruuning situation are examined in face.
5th, the heavy joint-trial that enormously simplify locomotive is tested, it is ensured that the complete and no forbidden zone of vehicle-mounted EFI controller experiment.
Description of the drawings
Fig. 1 is the hardware-in-loop simulation platform theory diagram of prior art.
Fig. 2 is the diesel locomotive EFI controller operational environment electronic simulation system principle diagram of the embodiment of the present invention.
Fig. 3 is the host computer theory diagram in Fig. 2.
Fig. 4 is the slave computer theory diagram in Fig. 2.
Fig. 5 attach most importance to gang mould intend when host computer theory diagram.
Fig. 6 is that the EFI in Fig. 2 performs analog principle schematic.
Fig. 7 is that EFI performs analog adjustment compensation circuit principle schematic.
It is labeled as in figure：1- electromagnetic valve former-wound coils, 2- normally opened contacts, 3- armature, 4- normally-closed contacts, 5- slave computers, 6-
EFI controller, 7- tunable capacitors, 8- adjustable resistances, 9- man-machine interface operating consoles.Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Referring to accompanying drawing 2, the diesel locomotive EFI controller operational environment electronic simulation system of the present embodiment by host computer, under
Position machine and EFI perform analog composition.
Taken on by a special-purpose computer referring to the host computer of accompanying drawing 3, mainly realize following functions：
1st, the man-machine interactive system on locomotive is simulated, is communicated with EFI controller, send the control to EFI controller
System instruction, reading EFI controller feedback, state of reading locomotive electric-control system other parts and parameter feedback etc..
2nd, record and storage emulation system in each several part feedback information, storage EFI controller control instruction and correspondence
Feedback information, provide the real-time and history curve of various parameters for analysis.
3rd, host computer can be realized editing the operating mode list that will carry out of experiment, it is stipulated that the run time of each operating mode, order,
Major parameter requirement up to standard etc., after experiment starts, host computer can be by instruction control EFI controller and other locomotives simulations
Equipment carries out sequential experiment according to operating mode list automatically.
4th, it is logical using modbusRTU between host computer and slave computer (the locomotive analog systemss being mainly made up of single-chip microcomputer)
Communication is set up as needed and terminated to news, host computer as main website.It is logical using high speed can between slave computer and EFI controller
Letter.
When locomotive double heading experiment is carried out, host computer is then made up of two computers, is adopted between two computers
Modbus TCP IP communications protocol.See accompanying drawing 5.
Referring to accompanying drawing 4, slave computer is by MCU single-chip microcomputers and its style man-machine interactive interface circuit, signal imitation output interface circuit
Constitute with feedback monitoring interface circuit, the simulation and operation of main responsible locomotive electric-control system other parts in addition to EFI controller
Emulation, the test experiments operation for supporting EFI controller, monitoring EFI controller operational factor, the locomotive each several part of feedback analog
The parameter situation of electric control part, also state instruction, parameter regulation and command operating, experimenter can artificially change system mould
The locomotive each several part parameter of plan, pseudo instruction's simulation electric-control system enters various states, to the performance for investigating EFI controller
Ability.The major function of slave computer is as follows：
1st, receive the target operating condition requirement instruction that host computer is provided, drive analog signal output partial circuit to EFI control
The locomotive each several part parameter signal of device output simulation, to drive EFI controller to work.
2nd, operator can pass through the current operation of slave computer man-machine interface part monitors analogue system and working condition,
And can pass through to operate the part to instruct knob, array of buttons artificially to change the locomotive each several part parameter of emulation, examine EFI control
Working condition of the device processed under various limiting cases.
3rd, each several part parameter situation of whole simulation locomotive electric-control system is detected, feedack participates in control and calculates and carry
Master system is given, to record and to show.
4th, provide necessary monitoring for protection for whole analogue system and take necessary protection act to avoid loss.These guarantors
Shield includes earth leakage protective, short-circuit protection, the deadlock protection of EFI controller, EFI controller overtemperature protection, detection overspeed protection etc.
Deng sound and light alarm being taken when lower computer system detects these failure conditions and the protective measure such as cut off the electricity supply.
5th, the working condition of the execution analog systemss part that EFI controller drives is detected, to provide EFI controller is judged
Working condition and response effect data, be easy to analysis experiment.
Referring to accompanying drawing 6, the analog of EFI execution in the present embodiment simulates the work-based logic of 16 road electric-spraying fuel pumps.Should
Device is furnished with armature and adhesive switching circuit structure for electromagnetic valve former-wound coil, and during armature adhesive, normally opened contact closure is normally closed to touch
Point disconnects, and fully opens equivalent to electromagnetic valve；When removing ferrum release, normally opened contact disconnects, normally-closed contact closure, equivalent to electromagnetism
Valve starts flight.Former-wound coil input is connected to the outfan of EFI controller, and contact circuit output is connected to the inspection of slave computer
Survey input.These signals are detected by lower computer system, and then can draw the working condition for performing analog systemss, infer EFI
The working condition of controller.By the state for obtaining contact a, b, metering sequential and cycle, so as to calculate simulation electromagnetism is deduced out
The injection timing angle and fuel injection duration angle information of valve system.It is advantageous that need not really introduce the diesel oil of bulky
Machine electromagnetic valve and the electromagnetic valve motion detector circuit of corresponding load, and detection is equally reached with very succinct compact system
The purpose of EFI controller implementation status.
Referring to accompanying drawing 7, the driving and response effect for perfect simulation electric-spraying fuel pump, in electromagnetic valve former-wound coil electricity
It is serially connected with road by adjustable resistance and tunable capacitor adjustment compensation circuit in parallel.Operator can by adjusting in operating table surface
Become resistance and variable capacitance, change the size of current required for EFI controller drive magnetic valve former-wound coil and persistent period,
EFI controller is finally set to drive control electric current signal size and lasting sequential required for former-wound coil to reach true electromagnetic valve
Require or measured level.Various different type of machines diesel engines so can also be simulated in the case where system does not make any change different
The driving demand of the solenoid fuel injection valve of brand, so as to the electric spray control system for being directed to different automobile types is emulated and is examined.
Finally it should be noted that：Above example only to illustrate technical scheme, rather than a limitation；Although
The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (3)
1. a kind of diesel locomotive EFI controller operational environment electronic simulation system, including host computer and slave computer, wherein：
Host computer simulates locomotive man-machine interface, controls test platform, receives, processes, shows and store test information；
Slave computer performs the target operating condition requirement instruction that host computer is provided, and to EFI controller the locomotive each several part ginseng of simulation is exported
Number signal, control result of calculation is submitted to host computer by detection, the operating condition of monitoring system and each several part parameter situation；
It is characterized in that：
Communicated using modbusRTU between host computer and slave computer, CAN communication is adopted between slave computer and EFI controller；
Also include that EFI performs analog, the device is furnished with armature and adhesive switching circuit structure for electromagnetic valve former-wound coil,
During armature adhesive, normally opened contact closure, normally-closed contact disconnects；When removing ferrum release, normally opened contact disconnects, normally-closed contact closure,
Former-wound coil input is connected to the outfan of EFI controller, and contact circuit output is connected to the detection input of slave computer, mould
Intend the work-based logic of electric-spraying fuel pump.
2. diesel locomotive EFI controller operational environment electronic simulation system according to claim 1, it is characterised in that institute
State and be serially connected with electromagnetic valve former-wound coil circuit by adjustable resistance and tunable capacitor adjustment compensation circuit in parallel.
3. diesel locomotive EFI controller operational environment electronic simulation system according to claim 1, it is characterised in that machine
During car weight connection experiment, the host computer by using Modbus TCP two computers of IP communications protocol constitute.
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| CN201410691654.3A CN104570762B (en) | 2014-11-26 | 2014-11-26 | Electronic simulation system for electronic ejection controller operating environment of diesel locomotive |
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2014
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