CN208486948U - A kind of internal combustion engine inlet combustion adjuvant injection apparatus based on PLC - Google Patents
A kind of internal combustion engine inlet combustion adjuvant injection apparatus based on PLC Download PDFInfo
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- CN208486948U CN208486948U CN201820683174.6U CN201820683174U CN208486948U CN 208486948 U CN208486948 U CN 208486948U CN 201820683174 U CN201820683174 U CN 201820683174U CN 208486948 U CN208486948 U CN 208486948U
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 79
- 239000002671 adjuvant Substances 0.000 title claims abstract description 51
- 238000002347 injection Methods 0.000 title claims abstract description 12
- 239000007924 injection Substances 0.000 title claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 31
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 230000003993 interaction Effects 0.000 claims abstract description 20
- 230000004907 flux Effects 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 8
- 239000013589 supplement Substances 0.000 abstract description 4
- 239000013598 vector Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 34
- 238000000034 method Methods 0.000 description 4
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- 230000033228 biological regulation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 206010020852 Hypertonia Diseases 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A kind of internal combustion engine inlet combustion adjuvant injection apparatus category technical field of internal combustion engines based on PLC, signal acquiring system acquisition engine and the signal of combustion adjuvant gas circuit in the utility model, it is input in programmable logic controller (PLC) by signal conversion module, and combine on-off of the instruction of human-computer interaction touch screen by sequential operation by I/O mouthfuls of output levels control solid-state relays, and then the opening and closing of combustion adjuvant pressure-supplementing valve and modulation period and the duty ratio of high frequency valve are controlled, it is finally reached the purpose of accurate control combustion adjuvant supplement pressure and flow.The utility model can meet the needs of engine rig test and real steering vectors, compensate for previous combustion adjuvant supplementary device and only pass through pressure and control the problems such as combustion-supporting agent flux causes combustion adjuvant instability of flow, test accuracy to be difficult to ensure, is complicated for operation, the degree of automation is low.
Description
Technical field
A kind of the utility model category technical field of internal combustion engines, and in particular to internal combustion engine inlet combustion adjuvant spray based on PLC
Injection device.
Background technique
Internal combustion engine is as a kind of dynamic power machine, after application in over one hundred year, no matter in quantity and kind or in technology water
Square face has all obtained significant progress.Due to its good economy performance, power performance is excellent, and power bracket is broad, reliable durable,
Through becoming most widely used dynamic origin in the world.However as the increasingly strict of China's emission regulation, the warp of internal combustion engine
Ji property problem and pollutant emission problem become the principal element for currently limiting its development.
In order to cope with constantly stringent emission regulation, mainly takes improve internal combustion engine itself design or optimization internal combustion engine at present
The means such as control parameter improve the characteristics such as air-fuel mixture, burning and exhausting.Wherein regulated and controled by air intake duct combustion adjuvant spraying technique
Air-intake of combustion engine component and then regulates and controls air-fuel ratio and once become and grind to improve internal combustion engine thermal efficiency and reduce pollutant emission
Study carefully hot spot.Directly spraying combustion adjuvant (pure oxygen etc.) by air intake duct under specific operation to internal combustion engine can solve boosting internal combustion engine
The problems such as inefficient combustion caused by responding slowly existing under middle and slow speed of revolution and transient condition such as booster and burning deteriorate.
Current existing internal combustion engine combustion supporting agent injection apparatus is mostly used in engine test rack, generally uses high pressure gas
The mode that bottle cooperation manually-operated gate or electromagnetic valve are adjusted, structure is relatively easy, operates relatively cumbersome, adjusting relative difficulty,
And due in engine (especially single-cylinder engine) course of work admission pressure change greatly, lead to making-up air device flow not
Stablize, test accuracy cannot be guaranteed.And existing combustion adjuvant injection apparatus with internal combustion engine independent control, cannot achieve interior mostly
The coupling of combustion engine and combustion adjuvant postinjection device controls, and is not suitable for real train test.
Summary of the invention
The purpose of this utility model is to solve existing internal combustion engine combustion supporting agent supplementary device to be unable to accurately control combustion-supporting agent flux,
And internal combustion engine transient operating condition change procedure can not be adapted to meet engine rig test and the problem of real train test needs.It mentions
For a kind of internal combustion engine inlet combustion adjuvant injection apparatus based on PLC.
The utility model is made of PLC control module I, signal acquisition module II and high-pressure gas circuit and solenoid valve module III,
The signal acquisition module II is passed by crank angle sensor 13, throttle position switch 14, thermal flowmeter 15 and pressure
Sensor 16 forms, and wherein crank angle sensor 13 is Hall sensor, can be exported according to different engine speed different
The pulse signal of frequency.Throttle position switch 14, thermal flowmeter 15 and the exportable analog signals of pressure sensor 16.
These signals carry out operation by program by can be used as the input signal of programmable logic controller (PLC) 7 after processing.Signal acquisition
The entrance of the connecting terminal block 12 of the crank angle sensor 13 and PLC control module I of module II is connect；Signal acquisition module II
Throttle position switch 14 connect with the entrance of the connecting terminal block 12 of PLC control module I；The hot type of signal acquisition module II
The signal wire of flowmeter 15 is connect with the entrance of the connecting terminal block 12 of PLC control module I；15 import of thermal flowmeter and high pressure
Gas circuit is connect with multichannel block B17 in solenoid valve module III；The outlet of thermal flowmeter 15 is connect with engine inlets 27；Signal is adopted
The signal wire for collecting the pressure sensor 16 of module II is connect with the entrance of I middle connecting terminal of PLC control module row 12；Pressure sensing
The survey pressure probe of device 16 is connect with high-pressure gas circuit with the threaded hole of multichannel block A20 in solenoid valve module III；High-pressure gas circuit and electromagnetism
The I/O mouth company of the signal terminal of combustion adjuvant pressure-supplementing valve 24 and programmable logic controller (PLC) 7 in PLC control module I in valve module III
It connects；High-pressure gas circuit is patrolled with the signal terminal of No. four solid-state relays 19 in solenoid valve module III with programmable in PLC control module I
Collect the output terminal connection of controller 7.
The PLC control module I programs connection 3, man-machine friendship by direct current 12V regulated power supply 1, air switch 2, USB
Mutual touch screen 4, ethernet communication line 5, computer 6, programmable logic controller (PLC) 7, PLC Analog input mModule 8, PLC number
It measures conversion module A9, PLC digital quantity conversion module B10, PLC digital quantity conversion module C11 and connecting terminal block 12 forms, wherein
The power connection of human-computer interaction touch screen 4 and programmable logic controller (PLC) 7 connects through air switch 2 and direct current 12V regulated power supply 1
It connects；Human-computer interaction touch screen 4 is connect with programmable logic controller (PLC) 7 through ethernet communication line 5；Human-computer interaction touch screen 4 and can
Programmed logic controller 7 is connect through USB programming connection 3 with computer 6；Direct current 12V regulated power supply 1 is human-computer interaction touch
Screen 4 and programmable logic controller (PLC) 7 are powered, and air switch 2 can carry out short-circuit protection to entire circuit.Human-computer interaction touch screen
4 and programmable logic controller (PLC) 7 communicate by ethernet communication line 5 and connection 3 and computer 6 programmed by USB
Communication.PLC Analog input mModule 8 and PLC digital quantity conversion module 9-11 can be handled the signal of signal acquisition module,
Enable to be identified by programmable logic controller (PLC) 7.Connecting terminal block 12 can make wiring more convenient and more orderly, convenient for row
Look into failure and maintenance.PLC Analog input mModule 8, PLC digital quantity conversion module A9, PLC digital quantity conversion module B10 and PLC
The outlet of the entrance and connecting terminal block 12 of digital quantity conversion module C11 is electrically connected；PLC Analog input mModule 8, PLC number
The outlet and programmable logic control of word amount conversion module A9, PLC digital quantity conversion module B10 and PLC digital quantity conversion module C11
The signal acquisition Interface Electrical of device 7 processed connects.
The high-pressure gas circuit and solenoid valve module III is by multichannel block B17, four road high frequency valves 18, No. four solid-state relays
19, multichannel block A20, direct current 24V regulated power supply 21, threeway 22, low pressure gas cylinder 23, combustion adjuvant pressure-supplementing valve 24, second depressurized valve 25,
High pressure gas holder 26 forms, and solid-state relay is suitble to HF switch, therefore is controlled using solid-state relay due to its contactless characteristic
High frequency valve, combustion adjuvant pressure-supplementing valve 24 are controlled by programmable logic controller (PLC) 7, are opened when 23 pressure of low pressure gas cylinder is lower than setting pressure
It opens to supplement 23 pressure of low pressure gas cylinder.26 pressure of high pressure gas holder is up to 150bar, facilitates and is more helped with the storage of smaller space
Fire agent.Second depressurized valve 25 can detecte the pressure of high pressure gas holder 26, and can be depressurized, and pressure is 25bar after decompression
Hereinafter, can also prevent electric-controlled system fault from causing the destruction of equipment.Low pressure gas cylinder 23 is in order to keep the pressure of gas circuit to stablize, control
The pressure of gas circuit as combustion adjuvant supplement flow change and caused by fluctuate.Multichannel block A20 is used as the access of combustion adjuvant simultaneously
And the installation valve seat as combustion adjuvant pressure-supplementing valve 24, multichannel block B17 are used to that one will be combined by the combustion adjuvant of four road high frequency valves 18
Road.Wherein 25 input terminal of second depressurized valve is connect with high pressure gas holder 26；25 output end of second depressurized valve and combustion adjuvant pressure-supplementing valve 24
Entrance connection；22 one end of threeway is connect with the outlet of combustion adjuvant pressure-supplementing valve 26；The other both ends of threeway 22 respectively with low pressure gas cylinder
23 outlets are connected with multichannel block A20 entrance；The outlet multichannel block A20 is connect with four road high frequency valves, 18 entrance；Four road high frequency valves 18 go out
Mouth is connect with multichannel block B17 arrival end；21 output end of direct current 24V regulated power supply is through No. four solid-state relays 19 and four road high frequency valves
18 drive terminal connection；Since 7 driving capability of programmable logic controller (PLC) is poor, therefore passed through by direct current 24V regulated power supply 21
Solid-state relay carries out the driving of high frequency valve, I/O mouth of programmable logic controller (PLC) 7 as signal output to solid-state relay into
Row control.21 output end of direct current 24V regulated power supply is connect with the drive terminal of combustion adjuvant pressure-supplementing valve 24；Combustion adjuvant pressure-supplementing valve 24
The I/O mouth of signal terminal and programmable logic controller (PLC) 7 is electrically connected.A relay is equivalent in combustion adjuvant pressure-supplementing valve principle
Device, control mode are similar to the control of above-mentioned solid-state relay.It is bolted between four road high frequency valves 18.
The data and human-computer interaction that the program of the programmable logic controller (PLC) 7 is inputted according to pressure sensor 16 touch
The setup pressure value of screen 4 controls I/O mouthfuls of output levels；Programmable logic controller (PLC) 7 can be controlled by I/O mouthfuls of output low and high levels
Combustion adjuvant pressure-supplementing valve 23 opens and closes, and I/O mouthfuls of the data adjusting inputted using PID control logic according to pressure sensor 16 is defeated
Level out；Engine speed is calculated according to the signal of crank angle sensor 13；Since 13 output signal of crankshaft sensor is arteries and veins
Signal is rushed, engine speed can be calculated according to its signal frequency.According to 14 calculation of throttle pedal position of accelerator pedal position sensor
It sets；Combustion-supporting agent flux MAP based on engine speed and accelerator pedal position built in the program of programmable logic controller (PLC) 7；?
When carrying out real steering vectors, combustion-supporting agent flux MAP can be embedded in 7 program of programmable logic controller (PLC).According to engine speed and
Accelerator pedal position inquires combustion-supporting agent flux MAP and tentatively configures the corresponding I/O mouthfuls of modulating frequency of No. four solid-state relay 19 and tune
Duty ratio processed；According to the signal of thermal flowmeter 15 feed back carry out the corresponding I/O mouthfuls of modulating frequency of No. four solid-state relay 18 and
The accurate control of modulation duty cycle；Since the flow of inquiry MAP configuration may be different from and reality due to engine operating environments
Border flow has certain discrepancy, carries out closed-loop control by the signal of thermal flowmeter 15 feedback, it is accurate adjust four tunnel solid-states after
The corresponding I/O mouthfuls of modulating frequency of electric appliance and modulation duty cycle.
Compared with prior art, the utility model has the advantages that:
It is traditional that pressure is controlled by hand-operated valve since the fluctuation of engine (especially single cylinder engine) inlet pressure is bigger
And then the method for controlling combustion-supporting agent flux can cause instability of flow because pressure difference variation is relatively large.The utility model passes through
The mechanical and pressure controlled mode of electronics coupled, realizes the accurate control of combustion adjuvant supplement pressure, and passes through solid-state relay
Combustion-supporting agent flux is accurately adjusted with high-frequency electromagnetic valve.Pressure before the utility model high frequency valve is up to 25bar, though engine into
Airway pressure fluctuation is big, since pressure difference variation is relatively little, combustion-supporting agent flux can also be made relatively stable.And the utility model can be with
It is allowed to adapt to the admission pressure fluctuation of engine the modulation period for adjusting high frequency valve according to the revolving speed of engine.Traditional is combustion-supporting
Agent supplementary device and engine independent control, the degree of automation is low, is not able to satisfy the demand of real steering vectors.The utility model passes through
It is the human-computer interaction touch screen interface voluntarily worked out and programmable logic controller program cooperation solid-state relay, high frequency valve, combustion-supporting
The electronic equipments such as agent pressure-supplementing valve realize that Automatic Control can meet the needs of engine rig test and real steering vectors.
Detailed description of the invention
Fig. 1 is the internal combustion engine inlet combustion adjuvant injection apparatus schematic diagram based on PLC
Fig. 2 is human-computer interaction touch screen interface schematic diagram
Wherein: I .PLC control module, II, signal acquisition module, III, high-pressure gas circuit and 1. direct current 12V of solenoid valve module
2. air switch 3.USB of regulated power supply programs 4. human-computer interaction touch screen of connection, 5. ethernet communication line, 6. computer
7. programmable logic controller (PLC) 8.PLC Analog input mModule 9.PLC digital quantity conversion module A 10.PLC digital quantity is converted
13. crank angle sensor of module B 11.PLC digital quantity conversion module 12. connecting terminal block of C, 14. throttle position switch
15. 16. pressure sensor of thermal flowmeter, 17. multichannel block B, 18. 4 road high frequency valve, 19. No. four solid-state relay more than 20.
21. 24. combustion adjuvant pressure-supplementing valve of direct current 24V regulated power supply 22. threeway, 23. low pressure gas cylinder of road block A, 25. second depressurized valve
26. 29. battery main switch indicator light of high pressure gas holder 27. engine inlets, 28. battery main switch button, 30. combustion adjuvant is mended
31. combustion adjuvant pressure-supplementing valve force switch indicator light of pressure valve force switch, 32. high frequency valve input window modulation period 33. is current
The setting of 34. goal pressure of pressure display window and 35. four-way high frequency valve duty cycle adjustment window of display window, 36. four-way
The instruction of 37. 38. low pressure alarming indicator light of four-way high frequency threshold switch button of road high frequency threshold switch indicator light, 39. alarm for high voltage
Lamp
Specific embodiment
The utility model is described with reference to the accompanying drawing.
As shown in Figure 1, the utility model is by PLC control module I, signal acquisition module II and high-pressure gas circuit and solenoid valve mould
Block III forms, and the signal acquisition module II is by crank angle sensor 13, throttle position switch 14, thermal flowmeter 15
It is formed with pressure sensor 16, wherein the terminals of the crank angle sensor 13 of signal acquisition module II and PLC control module I
The entrance connection of son row 12；The throttle position switch 14 of signal acquisition module II and the connecting terminal block 12 of PLC control module I
Entrance connection；The connecting terminal block 12 of the signal wire and PLC control module I of the thermal flowmeter 15 of signal acquisition module II
Entrance connection；15 import of thermal flowmeter is connect with high-pressure gas circuit with multichannel block B17 in solenoid valve module III；Thermal flowmeter 15
Outlet is connect with engine inlets 27；In the signal wire and PLC control module I of the pressure sensor 16 of signal acquisition module II
The entrance of connecting terminal block 12 connects；The survey pressure probe of pressure sensor 16 and multichannel block in high-pressure gas circuit and solenoid valve module III
The threaded hole of A20 connects；The signal terminal and PLC control module of combustion adjuvant pressure-supplementing valve 24 in high-pressure gas circuit and solenoid valve module III
The I/O mouth connection of programmable logic controller (PLC) 7 in I；The letter of No. four solid-state relays 19 in high-pressure gas circuit and solenoid valve module III
Number terminal is connect with the output terminal of programmable logic controller (PLC) 7 in PLC control module I.
The PLC control module I programs connection 3, man-machine friendship by direct current 12V regulated power supply 1, air switch 2, USB
Mutual touch screen 4, ethernet communication line 5, computer 6, programmable logic controller (PLC) 7, PLC Analog input mModule 8, PLC number
It measures conversion module A9, PLC digital quantity conversion module B10, PLC digital quantity conversion module C11 and connecting terminal block 12 forms, wherein
The power connection of human-computer interaction touch screen 4 and programmable logic controller (PLC) 7 connects through air switch 2 and direct current 12V regulated power supply 1
It connects；The USB interface of human-computer interaction touch screen 4 is connect through USB programming connection 3 with the USB interface of computer 6；Computer 6
USB interface is connect with the programming interface of programmable logic controller (PLC) 7；Human-computer interaction touch screen 4 and programmable logic controller (PLC) 7 pass through
Ethernet communication line 5 connects；PLC Analog input mModule 8, PLC digital quantity conversion module A9, PLC digital quantity conversion module B10
Outlet with the entrance and connecting terminal block 12 of PLC digital quantity conversion module C11 is electrically connected；PLC Analog input mModule 8,
The outlet of PLC digital quantity conversion module A9, PLC digital quantity conversion module B10 and PLC digital quantity conversion module C11 and programmable
The signal acquisition Interface Electrical of logic controller 7 connects.
The high-pressure gas circuit and solenoid valve module III is by multichannel block B17, four road high frequency valves 18, No. four solid-state relays
19, multichannel block A20, direct current 24V regulated power supply 21, threeway 22, low pressure gas cylinder 23, combustion adjuvant pressure-supplementing valve 24, second depressurized valve 25,
High pressure gas holder 26 forms, and wherein 25 input terminal of second depressurized valve is connect with high pressure gas holder 26；25 output end of second depressurized valve with help
Fire the entrance connection of agent pressure-supplementing valve 24；22 one end of threeway is connect with the outlet of combustion adjuvant pressure-supplementing valve 26；The other both ends of threeway 22 point
It is not connect with the outlet of low pressure gas cylinder 23 and multichannel block A20 entrance；The outlet multichannel block A20 is connect with four road high frequency valves, 18 entrance；Four
The outlet of road high frequency valve 18 is connect with multichannel block B17 arrival end；21 output end of direct current 24V regulated power supply is through No. four solid-state relays 19
It is connect with the drive terminal of four road high frequency valves 18；The driving end of direct current 24V regulated power supply 21 output end and combustion adjuvant pressure-supplementing valve 24
Son connection；It is bolted between four road high frequency valves 18.
The data and human-computer interaction that the program of the programmable logic controller (PLC) 7 is inputted according to pressure sensor 16 touch
The setup pressure value of screen 4 controls I/O mouthfuls of output levels；Engine speed is calculated according to the signal of crank angle sensor 13；Root
According to 14 calculation of throttle pedal position of accelerator pedal position sensor；The program of programmable logic controller (PLC) 7 is built-in to be based on engine
The combustion-supporting agent flux MAP of revolving speed and accelerator pedal position inquires combustion-supporting agent flux according to engine speed and accelerator pedal position
MAP tentatively configures the corresponding I/O mouthfuls of modulating frequency of No. four solid-state relays and modulation duty cycle；According to the letter of thermal flowmeter 15
Number feedback, carries out the accurate control of the corresponding I/O mouthfuls of modulating frequency of No. four solid-state relay 18 and modulation duty cycle.
As shown in Fig. 2,4 interface of human-computer interaction touch screen has battery main switch button 28, battery main switch
Indicator light 29, combustion adjuvant pressure-supplementing valve force switch 30, combustion adjuvant pressure-supplementing valve force switch indicator light 31, high frequency valve are defeated modulation period
Enter window 32, current pressure display window 33, goal pressure setting and display window 34, four-way high frequency valve duty cycle adjustment window
Mouth 35, four-way high frequency threshold switch indicator light 36, four-way high frequency threshold switch button, 37 low pressure alarming indicator lights 38 and high pressure report
Alert indicator light 39.Battery main switch button 28 and switch indication light 29 control connecting and disconnecting of the circuit and the instruction of complete equipment.Combustion adjuvant
Pressure-supplementing valve force switch 30 and combustion adjuvant pressure-supplementing valve force switch indicator light 31 are due to safety concerns can be in program mal
Closing combustion adjuvant pressure-supplementing valve 25 by force prevents hypertonia in gas circuit from causing danger.Input high frequency valve modulation period is to be suitble to
The case where single-cylinder engine air inlet is with the fluctuation of speed, control are allowed to be suitble to engine (especially 18 modulation period of four road high frequency valves
Single-cylinder engine) charge pulsation frequency, maintain the stabilization of combustion-supporting agent flux.Four-way high frequency valve duty cycle adjustment window 35 can be with
The duty ratio of separately adjustable four-way high frequency valve 18 is allowed to accurately control the flow of combustion adjuvant.Current pressure display window 33 is aobvious
Show the pressure at pressure sensor, convenient for the pressure in monitoring gas circuit.Gas can be set in goal pressure setting and display window 34
Pressure value in road, convenient for the control of combustion-supporting agent flux.Low pressure alarming indicator light 38 and alarm for high voltage indicator light 39 are in current pressure
It alarms when more than or less than certain restrictions, prevents danger.
Claims (4)
1. a kind of internal combustion engine inlet combustion adjuvant injection apparatus based on PLC, which is characterized in that by PLC control module (I), letter
Number acquisition module (II) and high-pressure gas circuit and solenoid valve module (III) form, and the signal acquisition module (II) is by crank angle
Sensor (13), throttle position switch (14), thermal flowmeter (15) and pressure sensor (16) form, wherein signal acquisition
The entrance of the connecting terminal block (12) of the crank angle sensor (13) and PLC control module (I) of module (II) is connect；Signal is adopted
The throttle position switch (14) of collection module (II) is connect with the entrance of the connecting terminal block (12) of PLC control module (I)；Signal
The entrance of the connecting terminal block (12) of the signal wire and PLC control module (I) of the thermal flowmeter (15) of acquisition module (II) connects
It connects；Thermal flowmeter (15) import is connect with high-pressure gas circuit with multichannel block B (17) in solenoid valve module (III)；Thermal flowmeter
(15) outlet is connect with engine inlets (27)；The signal wire and PLC of the pressure sensor (16) of signal acquisition module (II)
Control module (I) middle connecting terminal arranges the entrance connection of (12)；Survey pressure probe and the high-pressure gas circuit and electricity of pressure sensor (16)
The threaded hole connection of multichannel block A (20) in magnet valve module (III)；High-pressure gas circuit and combustion adjuvant pressure-supplementing valve in solenoid valve module (III)
(24) signal terminal is connect with the I/O mouth of programmable logic controller (PLC) (7) in PLC control module (I)；High-pressure gas circuit and electromagnetism
The signal terminal of No. four solid-state relays (19) and programmable logic controller (PLC) (7) in PLC control module (I) in valve module (III)
Output terminal connection.
2. the internal combustion engine inlet combustion adjuvant injection apparatus according to claim 1 based on PLC, which is characterized in that described
PLC control module (I) is touched by direct current 12V regulated power supply (1), air switch (2), USB programming connection (3), human-computer interaction
Shield (4), ethernet communication line (5), computer (6), programmable logic controller (PLC) (7), PLC Analog input mModule (8), PLC
Digital quantity conversion module A (9), PLC digital quantity conversion module B (10), PLC digital quantity conversion module C (11) and connecting terminal block
(12) form, wherein the power connection of human-computer interaction touch screen (4) and programmable logic controller (PLC) (7) through air switch (2) with
Direct current 12V regulated power supply (1) connection；Human-computer interaction touch screen (4) and programmable logic controller (PLC) (7) are through ethernet communication line
(5) it connects；Human-computer interaction touch screen (4) and programmable logic controller (PLC) (7) are through USB programming connection (3) and computer (6)
Connection；PLC Analog input mModule (8), PLC digital quantity conversion module A (9), PLC digital quantity conversion module B (10) and PLC number
The entrance of word amount conversion module C (11) and the outlet of connecting terminal block (12) are electrically connected；PLC Analog input mModule (8),
The outlet of PLC digital quantity conversion module A (9), PLC digital quantity conversion module B (10) and PLC digital quantity conversion module C (11) with
The signal acquisition Interface Electrical of programmable logic controller (PLC) (7) connects.
3. the internal combustion engine inlet combustion adjuvant injection apparatus according to claim 1 based on PLC, which is characterized in that described
High-pressure gas circuit and solenoid valve module (III) are by multichannel block B (17), four road high frequency valves (18), No. four solid-state relays (19), multichannel
Block A (20), direct current 24V regulated power supply (21), threeway (22), low pressure gas cylinder (23), combustion adjuvant pressure-supplementing valve (24), second depressurized valve
(25), high pressure gas holder (26) forms, and wherein second depressurized valve (25) input terminal is connect with high pressure gas holder (26)；Second depressurized valve
(25) output end is connect with the entrance of combustion adjuvant pressure-supplementing valve (24)；The outlet of threeway (22) one end and combustion adjuvant pressure-supplementing valve (24) connects
It connects；In addition both ends are connect with low pressure gas cylinder (23) outlet and multichannel block A (20) entrance respectively for threeway (22)；Multichannel block A (20) goes out
The connection of tetra- road high frequency valve (18) entrance of Kou Yu；The outlet of four road high frequency valves (18) is connect with multichannel block B (17) arrival end；Direct current 24V
Regulated power supply (21) output end is connect through No. four solid-state relays (19) with the drive terminal of four road high frequency valves (18)；Direct current 24V
Regulated power supply (21) output end is connect with the drive terminal of combustion adjuvant pressure-supplementing valve (24)；Pass through bolt between four road high frequency valves (18)
Connection.
4. the internal combustion engine inlet combustion adjuvant injection apparatus according to claim 1 based on PLC, which is characterized in that described
Data that the program of programmable logic controller (PLC) (7) is inputted according to pressure sensor (16) and human-computer interaction touch screen (4) are set
Level pressure force value controls I/O mouthfuls of output levels；Engine speed is calculated according to the signal of crank angle sensor (13)；According to throttle
Position sensor (14) calculation of throttle pedal position；The program of programmable logic controller (PLC) (7) it is built-in based on engine speed and
It is preliminary to inquire combustion-supporting agent flux MAP according to engine speed and accelerator pedal position by the combustion-supporting agent flux MAP of accelerator pedal position
Configure the corresponding I/O mouthfuls of modulating frequency of No. four solid-state relays (19) and modulation duty cycle；According to the letter of thermal flowmeter (15)
Number feedback carries out the accurate control of the corresponding I/O mouthfuls of modulating frequency of No. four solid-state relays (19) and modulation duty cycle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820683174.6U CN208486948U (en) | 2018-05-09 | 2018-05-09 | A kind of internal combustion engine inlet combustion adjuvant injection apparatus based on PLC |
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| CN201820683174.6U CN208486948U (en) | 2018-05-09 | 2018-05-09 | A kind of internal combustion engine inlet combustion adjuvant injection apparatus based on PLC |
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| CN208486948U true CN208486948U (en) | 2019-02-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506106A (en) * | 2018-05-09 | 2018-09-07 | 吉林大学 | A kind of internal combustion engine inlet combustion adjuvant injection apparatus based on PLC |
-
2018
- 2018-05-09 CN CN201820683174.6U patent/CN208486948U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506106A (en) * | 2018-05-09 | 2018-09-07 | 吉林大学 | A kind of internal combustion engine inlet combustion adjuvant injection apparatus based on PLC |
| CN108506106B (en) * | 2018-05-09 | 2024-01-02 | 吉林大学 | Internal combustion engine air inlet channel combustion improver injection device based on PLC |
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