CN209398491U - A kind of control system that can effectively expand gasoline compression ignition high-efficiency cleaning range of operation - Google Patents
A kind of control system that can effectively expand gasoline compression ignition high-efficiency cleaning range of operation Download PDFInfo
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- CN209398491U CN209398491U CN201821617328.8U CN201821617328U CN209398491U CN 209398491 U CN209398491 U CN 209398491U CN 201821617328 U CN201821617328 U CN 201821617328U CN 209398491 U CN209398491 U CN 209398491U
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- 230000006835 compression Effects 0.000 title claims abstract description 24
- 238000007906 compression Methods 0.000 title claims abstract description 24
- 239000003502 gasoline Substances 0.000 title claims abstract description 23
- 238000004140 cleaning Methods 0.000 title claims abstract description 16
- 239000000446 fuel Substances 0.000 claims abstract description 32
- 238000002347 injection Methods 0.000 claims description 38
- 239000007924 injection Substances 0.000 claims description 38
- 238000011217 control strategy Methods 0.000 claims description 18
- 239000000498 cooling water Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000008187 granular material Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 18
- 238000002485 combustion reaction Methods 0.000 description 16
- 239000003921 oil Substances 0.000 description 8
- 239000004071 soot Substances 0.000 description 6
- 239000008246 gaseous mixture Substances 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000001535 kindling effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000036031 hyperthermia Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic 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
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The utility model discloses a kind of control system that can effectively expand gasoline compression ignition high-efficiency cleaning range of operation, each cylinder air inlet of double variable valve actuator for air is all connected with inlet manifold gas outlet, and inlet manifold's air inlet connects compressor；Each cylinder exhaust port is all connected with exhaust main air inlet, and exhaust main exhaust outlet connects turbine, and air intake heater is arranged in inlet manifold, and air intake heater flow control valve is arranged in air intake heater air inlet；By pipeline parallel connection intercooler between air intake heater air inlet and exhaust outlet, intercooler flow control valve is arranged in intercooler air inlet；Air intake duct low pressure fuel injector device, intake air temperature sensor, in-cylinder direct-jet high pressure fuel injector, air intake heater, air intake heater flow control valve, intercooler flow control valve, EGR check valve and high pressure EGR valve are electrically connected with electronic control unit.It is high that the utility model solves the problems, such as that granule number existing for current in-cylinder direct-jet technology discharges.
Description
Technical field
The utility model relates to field of internal combustion engine, are to be related to that a kind of effectively to expand gasoline compression ignition efficient more specifically
The control system of clean run range.
Background technique
It is increasing with car ownership, people's is increasingly subject to negative effect brought by the energy and environment
Pay attention to.Also more stringent emission regulation has been formulated in succession to limit noxious emission and CO in various countries2The discharge of isothermal chamber gas.
Therefore, the control technology for exploring the burning of internal combustion engine high-efficiency cleaning realizes that energy-saving and emission-reduction are of great importance to various countries.
Traditional gasoline engine is equivalent proportion Combustion System, and post-processing can fully rely on simple three-way catalyst, due to
Its is at low cost, control is simple, thus is widely used.But the load of conventional gasoline machine is by throttle control, in sub-load
Operating condition pumping loss is larger, and compression ratio is low, causes the thermal efficiency lower.In order to meet the following energy-efficient development trend,
What gasoline engine had been widely used at present is the control technology of " in-cylinder direct-jet, layering lean burn " (GDI), and GDI passes through oil spout
Amount directly controls load, eliminates the dependence to air throttle；GDI injection pressure is high, fuel oil can be made sufficiently to mix with air, made
Fuel combustion is more abundant；The layering Weak mixture that GDI is formed enhances the rejection ability of pinking, can suitably increase pressure
Contracting ratio.Therefore GDI, which compares traditional multi-point injection (MPI) gasoline engine, has the higher thermal efficiency.But there is also insufficient by GDI:
First some researches show that, the granule density in GDI tail gas is 10 times or more of traditional multi-point injection petrol engine, mainly due to
Its mixed Daqu time is short and high injection pressure makes the reasons such as fuel colliding wall form localized hyperthermia's overrich area leads to soot
It is formed；Secondly, plug ignition combustion mixture region is smaller in GDI engine, and higher injection pressure makes gaseous mixture
Air-fuel at diffusion term is relatively high, keeps flame gradually weak during propagating to periphery or even flame propagation is interrupted, make
Gaseous mixture is unable to full combustion；Finally, GDI lean burn is although energy-efficient, but air-fuel ratio is near chemically correct fuel,
Prevent the three-way catalytic converter being widely used from efficient operation.
A large number of studies show that soot emissions can be improved by improving uniformity coefficient of the gaseous mixture before kindling；Large scale is cooling
Ultra-low emission of NOx may be implemented in EGR；Fuel economy can be improved by improving compression ratio；Pass through internal EGR and Injection strategy coupling
Gasoline Smaller load may be implemented by the way of compression ignition and stablize burning for conjunction.Therefore, based on the above theory, exist for GDI
The problem of, the utility model proposes a kind of control system that can effectively expand gasoline compression ignition high-efficiency cleaning range of operation and sides
Method.
Utility model content
The purpose of this utility model is to overcome deficiency in the prior art, providing a kind of can effectively expand gasoline compression ignition
The control system of high-efficiency cleaning range of operation solves granule number existing for current in-cylinder direct-jet (GDI) technology and discharges high ask
Topic；It solves to improve gasoline compression ignition in Smaller load combustion instability, and the problem rough in big load operation.
The purpose of this utility model is achieved through the following technical solutions.
The utility model can effectively expand the control system of gasoline compression ignition high-efficiency cleaning range of operation, including be set to pressure
Each cylinder air inlet of double variable valve actuator for air in combustion engine, double variable valve actuator for air is respectively connected with air inlet discrimination
Pipe, all inlet manifold are all connected with inlet manifold gas outlet, and inlet manifold's air inlet connects compressor exhaust outlet, the pressure
Mechanism of qi air inlet connects air cleaner；Each cylinder exhaust port of double variable valve actuator for air is respectively connected with exhaust manifold,
All exhaust manifolds are all connected with exhaust main air inlet, and the exhaust main exhaust outlet connects turbine air inlet,
Be provided with air intake duct low pressure fuel injector device in each inlet manifold, the inlet manifold gas outlet be provided with into
Gas temperature sensor is provided with in-cylinder direct-jet high pressure fuel injector in each cylinder of double variable valve actuator for air；It is described into
Gas general pipeline is provided with air intake heater, and the air intake heater air inlet is provided with air intake heater flow control valve, it is described into
It is connected with exhaust branch between the inlet manifold and exhaust main of the connection of hot-air heater inlet port, the exhaust branch is provided with
EGR check valve and high pressure EGR valve；Intercooler is parallel with by pipeline between the air inlet and exhaust outlet of the air intake heater,
The intercooler air inlet is provided with intercooler flow control valve；
The air intake duct low pressure fuel injector device, intake air temperature sensor, in-cylinder direct-jet high pressure fuel injector, air intake heater, into
Hot-air heater flow control valve, intercooler flow control valve, EGR check valve and high pressure EGR valve pass through signal wire and electronics control
Unit electrical connection processed.
The intercooler tube side is connected with pipeline where it, and the intercooler shell side cooling water inlet is provided with intercooler
Cooling water flow control valve, the intercooler cooling water flow control valve are electrically connected by signal wire with electronic control unit.
The electronic control unit stores various control parameter target values and various control strategies under various operating conditions, institute
Stating control parameter includes intake air temperature, inlet and exhaust valve opening and closing moment, intake port injection oil mass, cylinder injection oil mass, cylinder injection
Timing, cylinder injection pressure, the control strategy include the injection strategies, internal EGR strategy, outside EGR of double injections it is tactful, into
Valve strategies, exhaust valve strategy and intake air temperature control strategy.
Compared with prior art, beneficial effect brought by the technical solution of the utility model is:
(1) the utility model gasoline eliminates ignition system by the way of pressuring combustion ignition, improves the reliable of engine
In property.
(2) the utility model uses double ejecting system, and premixed gas as much as possible is formed before kindling, realizes low temperature
Burning effectively reduces NOx and soot (Soot) discharge, cooperates valve strategies and intake air temperature control strategy, can be in full working scope
Cleaning burning is carried out in range.
(3) Miller cycle of the high geometrical compression ratio of the utility model has engine within the scope of full working scope higher swollen
Therefore swollen ratio can improve the thermal efficiency of engine.
Detailed description of the invention
Fig. 1 is the control system schematic diagram that the utility model can effectively expand gasoline compression ignition high-efficiency cleaning range of operation；
Fig. 2 is the engine operating condition decision logic figure of the utility model；
Fig. 3 is the logic chart of the injection strategy (a) of the utility model, EGR strategy (b) and exhaust valve control strategy (c)；
Fig. 4 is the intake air temperature control system logic chart of the utility model；
Fig. 5 is the inlet valve control strategy logic chart of the utility model.
Appended drawing reference: 1 pair of variable valve actuator for air, 2 in-cylinder direct-jet high pressure fuel injectors, 3 intake air temperature sensor, 4 air intake ducts
Low pressure fuel injector device, 6 air intake heaters, 7 intercooler cooling water flow control valves, 8 intercoolers, 9 air intake heater flow control valves,
10 intercooler flow control valves, 11 air cleaners, 12EGR check valve, 13 high pressure EGR valves, 14 compressors, 15 turbines,
ECU electronic control unit.
Specific embodiment
The utility model will be further described with reference to the accompanying drawing.
As shown in Figure 1, the control system that can effectively expand gasoline compression ignition high-efficiency cleaning range of operation of the utility model, packet
Double variable valve actuator for air 1 are included, double variable valve actuator for air 1 are set in compression ignition engine, and the compression ignition engine is
Conventional engine.The IC Intake Valve Closes moment can be adjusted flexibly in double variable valve actuator for air 5 within the scope of full working scope,
Also exhaust valve may be implemented and open (exhaust valve is additionally opened once when air inlet) twice.
Each cylinder air inlet of double variable valve actuator for air 1 is respectively connected with inlet manifold, and all inlet manifold connect
Inlet manifold gas outlet is connect, inlet manifold's air inlet connects 14 exhaust outlet of compressor, 14 air inlet of the compressor connection
Air cleaner 11.Each cylinder exhaust port of double variable valve actuator for air 1 is respectively connected with exhaust manifold, all exhaust manifolds
It is all connected with exhaust main air inlet, the exhaust main exhaust outlet connects 15 air inlet of turbine.The compressor 14 and turbine
Machine 15 passes through axis connection.Air intake duct low pressure fuel injector device 4, the inlet manifold gas outlet are provided in each inlet manifold
It is provided with intake air temperature sensor 3, is provided with in-cylinder direct-jet high pressure oil spout in each cylinder of double variable valve actuator for air 1
Device 2.
The inlet manifold is provided with air intake heater 6, and 6 air inlet of air intake heater is provided with air intake heater stream
Control valve 9 is connected with exhaust branch between the inlet manifold and exhaust main of 6 inlet port of the air intake heater connection,
The exhaust branch is provided with EGR check valve 12 and high pressure EGR valve 13.The air inlet and exhaust outlet of the air intake heater 6 it
Between intercooler 8 is parallel with by pipeline, 8 tube side of intercooler is connected with pipeline where it, and 8 air inlet of intercooler is set
It is equipped with intercooler flow control valve 10, the 8 shell side cooling water inlet of intercooler is provided with intercooler cooling water flow control valve
7。
The air intake duct low pressure fuel injector device 4, intake air temperature sensor 3, in-cylinder direct-jet high pressure fuel injector 2, air intake heater
6, intercooler cooling water flow control valve 7, air intake heater flow control valve 9, intercooler flow control valve 10, EGR check valve
12 and high pressure EGR valve 13 be electrically connected with electronic control unit ECU by signal wire.The electronic control unit ECU is stored
Various control parameter target values and various control strategies under various operating conditions, the control parameter includes intake air temperature, intake and exhaust
Door opening and closing moment, intake port injection oil mass, cylinder injection oil mass, cylinder injection timing, cylinder injection pressure, the control strategy
Injection strategy, internal EGR strategy, outside EGR strategy, inlet valve strategy, exhaust valve strategy and intake air temperature including double injections
Control strategy.
Engine Inlet Temperature can by 3 real-time monitoring of intake air temperature sensor, and by air intake heater 6,
Intercooler cooling water flow control valve 7, intercooler 8, air intake heater flow control valve 9, intercooler flow control valve 10 are realized
Flexible modulation.The in-cylinder direct-jet high pressure fuel injector 2 and air intake duct low pressure fuel injector device 4 form fuel double ejecting system, air intake duct
It can flexibly be controlled by electronic control unit ECU with internal combustion oil of cylinder injection proportion, cylinder injection timing, cylinder injection pressure
System.Double variable valve actuator for air 5, EGR check valve 12 and high pressure EGR valve 13 form inside and outside egr system.The air inlet temperature
Spend sensor 3, air intake heater 6, intercooler cooling water flow control valve 7, intercooler 8, air intake heater flow control valve 9,
Intercooler flow control valve 10 forms intake air temperature control system.
In-cylinder direct-jet high pressure fuel injector 2 and air intake duct low pressure fuel injector device 4 in fuel double ejecting system connect the same oil
Case.Engine rotational speed signal and accelerator pedal position signal are read by electronic control unit ECU, judges the current fortune of engine
Row operating condition (as shown in Figure 2) executes corresponding double injection strategies, in Fig. 3 shown in (a).In small load condition, only with air inlet
Road injection, and the higher internal EGR of temperature is coupled, it is overlapped gaseous mixture high concentration region and high-temperature region, is conducive to stabilization of gasoline
Kindling and burning；In moderate duty operating condition, the double injection strategies combined using intake port injection and in-cylinder direct-jet, in-cylinder direct-jet
The small scale local over-concentration gaseous mixture of formation is easy to be compression-ignited, so that the premixed gas for the intake port injection that ignites, realizes large scale
Pre-mixing combustion advantageously reduces the discharge of soot and granule number；In high load working condition, intake port injection ratio is reduced, is prevented
The rate of pressure rise is excessively high and leads to the damage of engine.
Double variable valve actuator for air include inlet valve variable system and exhaust valve variable system.Inlet valve variable system mainly leads to
Spending inlet valve evening closes premixed gas that tactful (Miller cycle) guarantees that intake port injection is formed will not realize under the premise of spontaneous combustion
Bigger effective compression ratio guarantees enough air inflows, to realize that high-efficiency cleaning burns.IC Intake Valve Closes moment and intake air temperature
There is substantial connection, the control strategy of inlet valve is as shown in Figure 5.Firstly, reading revolving speed and throttle position letter by control unit ECU
Number, judge the operating condition of current engine, the target inlet air temperature and best inlet valve evening obtained under the operating condition closes the moment.Into
Influence of the temperature degree to the IC Intake Valve Closes moment will appear following three kinds of situations: if (1) practical intake air temperature is in target inlet air
In temperature range (Flag=0), then the best IC Intake Valve Closes moment is executed.If in variable working condition either harsh environmental conditions feelings
Under condition, intake air temperature control system can not make immediately intake air temperature reach target temperature, then corrected by intake air temperature difference
The best IC Intake Valve Closes moment.(2) it if intake air temperature is greater than the highest threshold value (Flag=1) of target inlet air temperature, executes
With the temperature difference (Δ T=Ta-Tth, TaIndicate actual temperature, TthIndicate target temperature highest threshold value) corresponding IC Intake Valve Closes when
It carves.If temperature signal (the Δ T of this acquisitioni+1) it is greater than last temperature signal (Δ Ti), then continue to postpone valve-closing
Moment；If Δ Ti+1<ΔTi, then the IC Intake Valve Closes moment shifts to an earlier date；If Δ Ti+1=Δ Ti, then when maintaining the IC Intake Valve Closes
It carves constant.(3) it if intake air temperature is less than the lowest threshold (Flag=2) of target inlet air temperature, executes and the temperature difference (Δ T
=TTl-Ta, TtlIndicate target temperature lowest threshold) corresponding IC Intake Valve Closes moment.If Δ Ti+1>ΔTiThen valve-closing
Moment shifts to an earlier date；If Δ Ti+1<ΔTi, then the IC Intake Valve Closes moment is postponed；If Δ Ti+1=Δ Ti, then the inlet valve is maintained to close
It is constant to close the moment.Therefore, engine can be guaranteed in variable working condition or severe by the control strategy at the above IC Intake Valve Closes moment
Normal combustion is realized under the conditions of the intake air temperature such as environmental condition are more rambunctious, while guaranteeing the higher thermal efficiency.
In the control strategy such as Fig. 3 of exhaust valve variable system shown in (c), in Smaller load (State=1) or starting
(State=0) operating condition, the strategy opened twice using exhaust valve is (in addition to opening exhaust valve in instroke, in suction stroke
In additionally open an exhaust valve) realize internal EGR, according to the thermal stratification and internal egr amount to be realized, adjust second and arrange
Valve opening time and duration；If used in moderate duty (State=3) or big load (State=4) operating condition
Normal exhaust valve once opens strategy.
In the control strategy such as Fig. 3 of inside and outside egr system shown in (b), in Smaller load or start operating performance, using internal EGR,
Guarantee small load condition stablizes burning；In-cylinder combustion is reduced using the cooling EGR in outside in moderate duty or high load working condition
Temperature realizes low NOx combustion.External EGR systems include EGR check valve 12 and high pressure EGR valve 13, and EGR is discharged from exhaust valve, according to
It is secondary by high pressure EGR valve 13 and EGR check valve 12, after being mixed with fresh air, by temperature control system, finally again into
Enter into engine and participates in burning.
The intake air temperature control system of engine includes intake air temperature sensor 3, air intake heater 6, intercooler cooling water
Flow control valve 7, intercooler 8, air intake heater flow control valve 9 and intercooler flow control valve 10.The air inlet temperature of engine
Degree is obtained by the measurement of intake air temperature sensor 3, and control unit ECU is obtained under the operating condition according to engine locating operating condition at present
Target inlet air temperature range.Intake air temperature is controlled within the scope of target inlet air temperature by inlet air heating control system.Air inlet
The control strategy of temperature is as shown in Figure 4.Point or less three kinds of situations: if (1) intake air temperature be higher than highest threshold temperature, according to
Following control mode reduces intake air temperature, until intake air temperature is met the requirements.Inlet air heating power is reduced first.Work as heating power
When being reduced to zero, cold air flow control valve opening in increase allows a part of gas to be cooled down by intercooler.Cold air in the middle
When flow control valve standard-sized sheet, then reduce heating gas flow control valve opening, until heating gas flow control valve closes entirely.If
Intake air temperature is still higher at this time, then enables Flag=1, and executes inlet valve evening pass control strategy as shown in Figure 4.(2) if
Intake air temperature is lower than minimum threshold, then increases heating gas flow control valve opening, reduce the gas flow for passing through intercooler, make
Intake air temperature increases.When heating gas flow control valve standard-sized sheet, then cold air flow control valve opening in reduction, further drops
The low gas flow by intercooler, increases intake air temperature.Middle cold air temperature range then enables Flag=2, and executes such as Fig. 4
Shown in inlet valve evening close strategy.(3) if intake air temperature is within the scope of target inlet air temperature, Flag=0 is enabled, according to Fig. 4
It is found that executing close moment of most preferably entering under the operating condition.
The controlling party for being able to achieve full working scope range gasoline height premixing high-efficiency cleaning compression ignition low-temperature burning of the utility model
Method, electronic control unit ECU read engine rotational speed signal and throttle position signal first, judge that engine currently runs work
Condition determines the double injection strategies of fuel and inside and outside EGR strategy, determines inlet and exhaust valve strategy then in conjunction with intake air temperature signals.It is logical
It crosses exhaust valve and opens realization internal EGR and cylinder fuel spray regime twice, organize Gang Nei localized hyperthermia rich mixture, improve small
Load condition combustion stability；High load working condition closes the cooling EGR of tactful coupled external and the spray of fuel air flue using inlet valve evening
Injection strategy based on penetrating realizes the big ratio of gas-duct jetting fuel small part direct injection fuel triggering in compression heated reformate, cylinder
Example premixing low-temperature burning, the explosion pressure and NOx and soot emissions for inhibiting big load excessively high；To realize full working scope range
Gasoline height is pre-mixed high-efficiency cleaning compression ignition low-temperature burning.
The utility model can also make several simple deduction or replace, such as above only describe is fired using gasoline
Material still uses the way of thinking of the utility model according to other antiknock gasolines (such as methanol, ethyl alcohol, natural gas),
It all shall be regarded as belonging to the utility model patent protection scope.
Claims (3)
1. a kind of control system that can effectively expand gasoline compression ignition high-efficiency cleaning range of operation, including it is set to compression ignition engine
Each cylinder air inlet of interior double variable valve actuator for air (1), double variable valve actuator for air (1) is respectively connected with inlet manifold,
All inlet manifold are all connected with inlet manifold gas outlet, and inlet manifold's air inlet connects compressor (14) exhaust outlet, described
Compressor (14) air inlet connects air cleaner (11)；Each cylinder exhaust port of double variable valve actuator for air (1) connects
It is connected to exhaust manifold, all exhaust manifolds are all connected with exhaust main air inlet, and the exhaust main exhaust outlet connects turbine
(15) air inlet, which is characterized in that
Be provided with air intake duct low pressure fuel injector device (4) in each inlet manifold, the inlet manifold gas outlet be provided with into
Gas temperature sensor (3) is provided with in-cylinder direct-jet high pressure fuel injector in each cylinder of double variable valve actuator for air (1)
(2)；The inlet manifold is provided with air intake heater (6), and air intake heater (6) air inlet is provided with air intake heater stream
Control valve (9) is connected with exhaust branch between the inlet manifold and exhaust main of air intake heater (6) the inlet port connection
Road, the exhaust branch are provided with EGR check valve (12) and high pressure EGR valve (13)；The air inlet of the air intake heater (6) and
It is parallel with intercooler (8) between exhaust outlet by pipeline, intercooler (8) air inlet is provided with intercooler flow control valve
(10)；
The air intake duct low pressure fuel injector device (4), intake air temperature sensor (3), in-cylinder direct-jet high pressure fuel injector (2), inlet air heating
Device (6), air intake heater flow control valve (9), intercooler flow control valve (10), EGR check valve (12) and high pressure EGR valve
(13) it is electrically connected by signal wire with electronic control unit ECU.
2. the control system according to claim 1 that can effectively expand gasoline compression ignition high-efficiency cleaning range of operation, feature
It is, intercooler (8) tube side pipeline where with it is connected, during intercooler (8) the shell side cooling water inlet is provided with
Cooler cooling water flow control valve (7), the intercooler cooling water flow control valve (7) pass through signal wire and electronic control unit
ECU electrical connection.
3. the control system according to claim 1 that can effectively expand gasoline compression ignition high-efficiency cleaning range of operation, feature
It is, the electronic control unit ECU stores control parameter target value and control strategy, and the control parameter includes air inlet temperature
Degree, inlet and exhaust valve are opened and closed moment, intake port injection oil mass, cylinder injection oil mass, cylinder injection timing, cylinder injection pressure, institute
State injection strategy, the internal EGR strategy, outside EGR strategy, inlet valve strategy, exhaust valve strategy that control strategy includes double injections
With intake air temperature control strategy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821617328.8U CN209398491U (en) | 2018-09-30 | 2018-09-30 | A kind of control system that can effectively expand gasoline compression ignition high-efficiency cleaning range of operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821617328.8U CN209398491U (en) | 2018-09-30 | 2018-09-30 | A kind of control system that can effectively expand gasoline compression ignition high-efficiency cleaning range of operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209398491U true CN209398491U (en) | 2019-09-17 |
Family
ID=67877474
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821617328.8U Expired - Fee Related CN209398491U (en) | 2018-09-30 | 2018-09-30 | A kind of control system that can effectively expand gasoline compression ignition high-efficiency cleaning range of operation |
Country Status (1)
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| CN (1) | CN209398491U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538347A (en) * | 2018-09-30 | 2019-03-29 | 天津大学 | It is able to achieve the control system and method for full working scope range gasoline high-efficiency cleaning compression ignition |
| CN111140338A (en) * | 2019-12-02 | 2020-05-12 | 潍柴动力股份有限公司 | Engine protection method and system based on air inlet temperature |
| CN113074056A (en) * | 2021-03-31 | 2021-07-06 | 潍柴重机股份有限公司 | Full-working-condition diesel micro-injection ignition control method |
-
2018
- 2018-09-30 CN CN201821617328.8U patent/CN209398491U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538347A (en) * | 2018-09-30 | 2019-03-29 | 天津大学 | It is able to achieve the control system and method for full working scope range gasoline high-efficiency cleaning compression ignition |
| CN109538347B (en) * | 2018-09-30 | 2021-12-14 | 天津大学 | Control method capable of realizing efficient clean compression ignition of gasoline in full working condition range |
| CN111140338A (en) * | 2019-12-02 | 2020-05-12 | 潍柴动力股份有限公司 | Engine protection method and system based on air inlet temperature |
| CN113074056A (en) * | 2021-03-31 | 2021-07-06 | 潍柴重机股份有限公司 | Full-working-condition diesel micro-injection ignition control method |
| CN113074056B (en) * | 2021-03-31 | 2022-08-19 | 潍柴重机股份有限公司 | Full-working-condition diesel micro-injection ignition control method |
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