CN109883717A - A kind of cylinder of internal-combustion engine simulator and control method - Google Patents
A kind of cylinder of internal-combustion engine simulator and control method Download PDFInfo
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- CN109883717A CN109883717A CN201910194136.3A CN201910194136A CN109883717A CN 109883717 A CN109883717 A CN 109883717A CN 201910194136 A CN201910194136 A CN 201910194136A CN 109883717 A CN109883717 A CN 109883717A
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Abstract
The invention belongs to field of internal combustion engine, and in particular to a kind of cylinder of internal-combustion engine simulator and control method.Including data acquisition module, live switch module, simulation control module, display control module etc.；Simulation control module is connected with data acquisition module；Simulation control module is connected with drive module；Drive module is connected with live switch module；Data acquisition module is connected with cylinder；Live switch module is connected with cylinder modules, data acquisition module；Generating digital quantity signal according to speed feedback by simulation control module is that 0-24V voltage signal goes to realize start and stop function, the size and direction for changing current signal can control the output signal of frequency converter and then control the rotation direction of motor, realize that piston does the purpose of linear reciprocating motion in cylinder.The present invention helps to analyze thickness of the oil film under different operating conditions between cylinder casing wall and piston, provides extremely important application value to further increase the efficiency of internal combustion engine, has a extensive future.
Description
Technical field
The invention belongs to field of internal combustion engine, and in particular to a kind of cylinder of internal-combustion engine simulator and control method.
Background technique
In modern industry, all there is friction between any two contact surface, friction will cause abrasion and reduce device
Operating accuracy even will cause machine breakdown when serious, in order to reduce abrasion and fever, extend the service life of machine, it is necessary to
Lubricant is added between two contact surfaces, reduces abrasion.Fluid lubrication is the most common lubricating system, micro- by one layer 1.5~2
Meter or more lubricating oil film two friction surfaces are completely separable, friction be produced from lubrication oil molecule between interior friction, effectively drop
Low abrasion improves working performance.Fluid lubrication is widely used in various fields, gear, bearing, and the mechanical parts such as piston are normal
The lubricating oil of micron order thickness is added, separated contact surfaces make component smooth motion.Lubrication failure is that machine run breaks down
One of the main reasons, therefore the greasy property for detecting mechanical equipment has important meaning, the thickness of lubricating oil film is that judgement is mechanical
The important parameter of equipment lubrication performance.
With industrial progress and Technological research, equipment is constantly to high power development, and the requirement to lubricating system is also increasingly
Height generates severe friction, lubricating difficulties if piston does linear reciprocating motion in cylinder in boat diesel engine between casing wall.
Internal cylinder temperature pressure is very high in real work engineering, and operating condition is severe, and load impacting is strong, is easy to cause lubricating oil film
Thinning, oil film is excessively thin to be will lead to piston and directly contacts with casing wall, and abrasion and the degree of heat sharply increase after a period of work, lead
Cause diesel engine damage；And when oil film is blocked up, and the bearing capacity of equipment can be reduced, prevent it from steady operation, meeting when serious
Cause oil leak and violent energy loss.To sum up, the oil film thickness between two rubbing surfaces is measured to monitoring state of runtime machine, is changed
There is important meaning into machine performance, many scholars conduct in-depth research oil film thickness measurement.
Summary of the invention
The purpose of the present invention is to provide a kind of cylinder of internal-combustion engine simulator and control methods, can analyze cylinder cylinder
Thickness of the oil film under different operating conditions between wall and piston provides reference value to further increase the efficiency of internal combustion engine.
A kind of cylinder of internal-combustion engine simulator, including it is data acquisition module, live switch module, simulation control module, aobvious
Control module, drive module and cylinder；The simulation control module is connected with data acquisition module；The simulation control module with
Drive module is connected；The drive module is connected with live switch module；The data acquisition module is connected with cylinder；
The scene switch module is connected with cylinder, data acquisition module.
A kind of cylinder of internal-combustion engine simulator, acquisition module acquire digital quantity and analog signals from scene, lead to
It crosses encoder and converts digital quantity signal for analog signals, and signal is passed into control module and carries out processing calculating.
A kind of cylinder of internal-combustion engine simulator, the signal that drive module receives control module generate lasting voltage letter
Number and current signal, voltage signal control frequency converter start and stop, current signal control motor rotation direction and rate, drive live
Fill in row linear reciprocating motion.
A kind of cylinder of internal-combustion engine simulator, simulation control module control revolving speed, guarantee piston linear reciprocating motion,
Simulate the state of control module real-time monitoring simulation cylinder cylinder wall temperature simulation internal combustion engine in the operating condition.
A kind of cylinder of internal-combustion engine simulator, display control module configuration ethernet unit, realize data upload and under
It carries.
A kind of cylinder of internal-combustion engine simulator, live switch module includes the electromagnetic valve switch at scene, heating sheet opens
It closes, the switch of frequency converter, each switch opening and closing operations is realized by the logical order of drive module.
A kind of cylinder of internal-combustion engine simulator, cylinder are connect with data acquisition module, cylinder and live switch module
It is connected, live switch module realizes the change of gas cylinder working condition by control valve, the state of frequency converter, heating sheet, number
The signal of sensor on simulation air cylinder device can be acquired according to acquisition module.
The purpose of the present invention is to provide a kind of cylinder of internal-combustion engine simulator control methods；
A kind of cylinder of internal-combustion engine simulator control method, comprising the following steps:
Step 1, the pressure value for obtaining oil pressure gauge monitor pressure fuel pump value to guarantee safety, if pressure value maintains properly
Within the scope of then carry out step 2, needed if having deviated from normal range (NR) by simulation control module start oil pump, keep its extensive
It is multiple to arrive in given section；
Step 2, the temperature value by data acquisition module acquisition cylinder cylinder, pressure value, if temperature value maintains simulation
Within the scope of under experiment condition, then step 3 is carried out, is needed if having deviated from normal range (NR) through simulation control module starting
Heating sheet makes it be restored to given value；
Step 3 goes to realize according to speed feedback generation digital quantity signal by simulation control module for 0-24V voltage signal
Start and stop function, the size and direction for changing current signal can control the output signal of frequency converter and then control the operating side of motor
To guaranteeing that motor is able to drive piston and does linear reciprocating motion, carry out step 4；
Step 4 is detected that the angular signal of crankshaft need to be after absolute encoder be encoded just by TDCS TDC Sensor
Simulation control module can be inputted, piston top dead center position can be detected according to this parameter, monitor the motion conditions of piston, if motor
Energy band piston does linear reciprocating motion, then maintains state this moment, if can not achieve, needs through control module adjusting pair
The control of frequency converter, returns to step 3.
The beneficial effects of the present invention are:
It is that 0-24V voltage signal goes to realize that the present invention, which generates digital quantity signal according to speed feedback by simulation control module,
Start and stop function, the size and direction for changing current signal can control the output signal of frequency converter and then control the operating side of motor
To realization piston does the purpose of linear reciprocating motion in cylinder.The present invention helps to analyze oil between cylinder casing wall and piston
Thickness of the film under different operating conditions provides extremely important application value to further increase the efficiency of internal combustion engine.
Detailed description of the invention
Fig. 1 is circuitry block schematic diagram of the present invention；
Fig. 2 is apparatus of the present invention figure；
Fig. 3 is present procedure flow diagram.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
It as shown in Fig. 1, is circuitry block schematic diagram of the present invention；It as shown in Fig. 2, is apparatus of the present invention figure.
It is a kind of simulation internal combustion engine piston movement basic control system, including 1 display control module, 2 data acquisition modules,
3 cylinders, 4 live switch modules, 5 drive modules, 6 simulation control modules.The simulation control module and data acquisition module phase
Connection；The simulation control module is connected with drive module；The drive module is connected with live switch module；The number
It is connected according to acquisition module with cylinder；The scene switch module is connected with cylinder modules, data acquisition module；
The data acquisition module can acquire digital quantity/analog signals from scene, and analog signals are passed through volume
Code device is converted into digital quantity signal, and signal is passed to simulation control module and carries out processing calculating；The drive module can
The signal for receiving control module generates the start and stop of lasting electric signal control scene switch and the Analog control letter of frequency converter
Number；The simulation control module can receive/send electric signal to data acquisition module, and be generated accordingly by logical operation
Control instruction, and then generate drive module control instruction.The control to revolving speed can not only be realized in simulation control module
Guarantee that piston can be realized linear reciprocating motion, and can real-time monitoring simulation cylinder cylinder wall temperature simulation internal combustion engine working
State under state.
It further further include that display control module (HMI touch screen) can receive the trigger signal from outside operator,
To generate corresponding response by control module.The module can also receive the signal from data acquisition module, to will show
The status display of field relevant device comes out；The scene switch module includes that the opening and closing of solenoid valve at scene, heating sheet are opened
It closes, start and stop of frequency converter etc., each switch opening and closing operations directly can be realized by the logical order from drive module.
The simulation air cylinder device is connected with data acquisition module and live switch module.Live switch module passes through
The change of the working condition of simulation air cylinder device may be implemented in the state of control valve, frequency converter, heating sheet.Data acquisition module
Block can acquire the signal of the various kinds of sensors on simulation air cylinder device.
It as shown in Fig. 3, is present procedure flow diagram；Control circuit sends control instruction to data module, reads
The parameter of spot sensor.After control unit obtains live cylinder cylinder wall temperature, pressure and other parameters, by logic calculation, thus
Further obtained parameter is calculated.It is handled by control unit, system will judge opening for heating sheet according to the actual situation
It closes.If temperature is excessively high, system is automatically stopped the heating function of heating sheet；If temperature is too low, system automatically turns on adding for heating sheet
Heat function.Control unit can send lasting electric signal starting frequency converter to frequency converter, to can control electricity by frequency converter
The rotation direction and velocity of rotation of machine.Meanwhile having speed feedback signal all the way via frequency converter and sending control unit back to, this sample prescription
Just control unit calculates again, and then adjusts the output of frequency converter.Operator can be sent by display and control panel to control unit
Signal starts electric frequency converter, and then motor is made to do linear reciprocating motion；Control unit can also be by the system such as temperature, pressure
The parameters such as power are presented on control panel in real time, so that operator checks.
A kind of cylinder of internal-combustion engine simulated experiment platform control method, comprising the following steps:
Step 1, the pressure value for obtaining oil pressure gauge monitor pressure fuel pump value to guarantee safety, if pressure value maintains properly
Within the scope of then carry out step 2, needed if having deviated from normal range (NR) by simulation control module start oil pump, keep its extensive
It is multiple to arrive in given section；
Step 2, the temperature value by data acquisition module acquisition cylinder cylinder, pressure value, if temperature value maintains simulation
Within the scope of under experiment condition, then step 3 is carried out, is needed if having deviated from normal range (NR) through simulation control module starting
Heating sheet makes it be restored to given value；
Step 3 goes to realize according to speed feedback generation digital quantity signal by simulation control module for 0-24V voltage signal
Start and stop function, the size and direction for changing current signal can control the output signal of frequency converter and then control the operating side of motor
To guaranteeing that motor is able to drive piston and does linear reciprocating motion, carry out step 4；
Step 4 is detected that the angular signal of crankshaft need to be after absolute encoder be encoded just by TDCS TDC Sensor
Simulation control module can be inputted, piston top dead center position can be detected according to this parameter, monitor the motion conditions of piston, if motor
Energy band piston does linear reciprocating motion, then maintains state this moment, if can not achieve, needs through control module adjusting pair
The control of frequency converter, returns to step 3.
What has been described above is only a preferred embodiment of the present invention, and present invention is not limited to the above embodiments.It is appreciated that this
Other improvements and changes that field technical staff directly exports or associates without departing from the basic idea of the present invention
It is considered as being included within protection scope of the present invention.
Claims (8)
1. a kind of cylinder of internal-combustion engine simulator, it is characterised in that: including data acquisition module, live switch module, simulation control
Molding block, display control module, drive module and cylinder；The simulation control module is connected with data acquisition module；The simulation
Control module is connected with drive module；The drive module is connected with live switch module；The data acquisition module with
Cylinder is connected；The scene switch module is connected with cylinder, data acquisition module.
2. a kind of cylinder of internal-combustion engine simulator according to claim 1, it is characterised in that: the acquisition module is from scene
Digital quantity and analog signals are acquired, digital quantity signal are converted for analog signals by encoder, and signal is passed to
Control module carries out processing calculating.
3. a kind of cylinder of internal-combustion engine simulator according to claim 1, it is characterised in that: the drive module receives control
The signal of module, generates lasting voltage signal and current signal, and voltage signal controls the start and stop of frequency converter, current signal control
The rotation direction and rate of motor, band piston carry out linear reciprocating motion.
4. a kind of cylinder of internal-combustion engine simulator according to claim 1, it is characterised in that: the simulation control module control
Revolving speed, guarantees piston linear reciprocating motion, and simulation control module real-time monitoring simulates cylinder cylinder wall temperature.
5. a kind of cylinder of internal-combustion engine simulator according to claim 1, it is characterised in that: the display control module configures ether
Net unit.
6. a kind of cylinder of internal-combustion engine simulator according to claim 1, it is characterised in that: it is described scene switch module include
The electromagnetic valve switch at scene, heating sheet switch, frequency converter switch, the opening and closing of each switch is realized by the logical order of drive module
Operation.
7. a kind of cylinder of internal-combustion engine simulator according to claim 1, it is characterised in that: the cylinder and data acquisition module
Block connection, cylinder are connect with live switch module, and live switch module is real by control valve, the state of frequency converter, heating sheet
The change of existing gas cylinder working condition, the data collecting module collected simulate the signal of sensor on air cylinder device.
8. a kind of cylinder of internal-combustion engine simulator control method, which comprises the following steps:
Step 1, obtain oil pressure gauge pressure value, monitor pressure fuel pump value, guarantee safety, if pressure value maintain normal range (NR) it
Inside then carry out step 2, if having deviated from normal range (NR), by simulation control module start oil pump, make pressure value be restored to
Determine in section；
Step 2, the temperature value by data acquisition module acquisition cylinder cylinder, pressure value, if temperature value maintains simulated experiment
Within the scope of under operating condition, then step 3 is carried out, if having deviated from normal range (NR), heating sheet is started by simulation control module,
Temperature is set to be restored to given value；
Step 3 passes through simulation control module, and generating digital quantity signal according to speed feedback is 0-24V voltage signal, realizes start and stop
Function, the size and direction that change current signal can control the output signal of frequency converter, and then control the rotation direction of motor, protect
Card motor energy band piston does linear reciprocating motion；
Step 4, the angular signal that crankshaft is detected by TDCS TDC Sensor, signal input after absolute encoder is encoded
Control module is simulated, piston top dead center position can be detected according to this parameter, monitor the motion conditions of piston, if motor can drive
Piston does linear reciprocating motion, then maintains state this moment, if can not achieve, adjusts the control to frequency converter by control module
System, returns to step 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910194136.3A CN109883717A (en) | 2019-03-14 | 2019-03-14 | A kind of cylinder of internal-combustion engine simulator and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910194136.3A CN109883717A (en) | 2019-03-14 | 2019-03-14 | A kind of cylinder of internal-combustion engine simulator and control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260803A (en) * | 2019-07-04 | 2019-09-20 | 哈尔滨工程大学 | TDLAS technology measures cylinder of internal-combustion engine oil film thickness simulator |
| CN111737830A (en) * | 2020-05-14 | 2020-10-02 | 广州明珞汽车装备有限公司 | Logic block generation method, system, device and storage medium of multi-axis cylinder |
| CN112114531A (en) * | 2020-08-10 | 2020-12-22 | 广州明珞装备股份有限公司 | Method, system, device and storage medium for rapid deployment of cylinder logic blocks |
| CN114173217A (en) * | 2021-11-09 | 2022-03-11 | 天津大学 | Wireless data transmission device and method for measurement information in piston of internal combustion engine cylinder |
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| CN103543015A (en) * | 2013-09-22 | 2014-01-29 | 华中科技大学 | Cooling experiment measuring device for oil injection of piston of internal combustion engine |
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| CN107576508A (en) * | 2017-09-15 | 2018-01-12 | 沈春钦 | A kind of internal combustion engine service condition data acquisition device and acquisition method |
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| EP0285556A1 (en) * | 1987-03-19 | 1988-10-05 | GebràDer Sulzer Aktiengesellschaft | Method for controlling the dynamic behaviour of a Diesel engine with an electronic speed regulator, and device for carrying out this method |
| CN1796823A (en) * | 2004-11-18 | 2006-07-05 | Smc株式会社 | Actuator control system |
| CN1940523A (en) * | 2006-09-26 | 2007-04-04 | 武汉理工大学 | Friction-loss and vibration analog experimental equipment for main motion components of IC engine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260803A (en) * | 2019-07-04 | 2019-09-20 | 哈尔滨工程大学 | TDLAS technology measures cylinder of internal-combustion engine oil film thickness simulator |
| CN111737830A (en) * | 2020-05-14 | 2020-10-02 | 广州明珞汽车装备有限公司 | Logic block generation method, system, device and storage medium of multi-axis cylinder |
| CN112114531A (en) * | 2020-08-10 | 2020-12-22 | 广州明珞装备股份有限公司 | Method, system, device and storage medium for rapid deployment of cylinder logic blocks |
| CN114173217A (en) * | 2021-11-09 | 2022-03-11 | 天津大学 | Wireless data transmission device and method for measurement information in piston of internal combustion engine cylinder |
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Application publication date: 20190614 |