CN110043384A - One kind being used for GDI supercharging gasoline engine dual-fuel control system - Google Patents
One kind being used for GDI supercharging gasoline engine dual-fuel control system Download PDFInfo
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- CN110043384A CN110043384A CN201910173920.6A CN201910173920A CN110043384A CN 110043384 A CN110043384 A CN 110043384A CN 201910173920 A CN201910173920 A CN 201910173920A CN 110043384 A CN110043384 A CN 110043384A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/027—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using knock sensors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/3094—Controlling fuel injection the fuel injection being effected by at least two different injectors, e.g. one in the intake manifold and one in the cylinder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/1518—Digital data processing using two or more central computing units, e.g. interpolation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/152—Digital data processing dependent on pinking
- F02P5/1527—Digital data processing dependent on pinking with means allowing burning of two or more fuels, e.g. super or normal, premium or regular
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P9/00—Electric spark ignition control, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The present invention relates to one kind to be used for GDI supercharging gasoline engine dual-fuel control system, including original machine electronic control unit, additional electronic control unit, air cleaner, electronic throttle, air flow meter, mixer, natural gas injector, E-Gas, GDI fuel injector, dual fuel engine and fault diagnosis system, original machine electronic control unit control electronic throttle and adjust total air inflow of dual fuel engine, the amount of injection of the gasoline of additional electronic control unit control dual fuel engine and the amount of injection of natural gas, original machine electronic control unit is communicated with additional electronic control unit by can line, the original machine electronic control unit and additional electronic control unit control dual fuel engine according to dual fuel engine because introducing the combustion boundary that natural gas re-scales in-cylinder combustion situation due to changing.The present invention makes natural gas-gasoline dual fuel engine be mixed in a certain ratio the purpose that energy saving reduction discharge is realized in the two kinds of fuel combustions of natural gas and gasoline under the control of the electric control unit by Bench calibration.
Description
Technical field
It is the invention belongs to dual fuel engine control technology field, in particular to a kind of for the double combustions of GDI supercharging gasoline engine
Expect control system.
Background technique
Corresponding natural gas injection system is generally all installed on dual fuel engine and control unit realizes air-fuel mixture
Burning.It is existing much about the patent of dual fuel injection system, but the place that all comes with some shortcomings mostly, comprehensively in view of double
The controlling difficulties of fuel.Such as a kind of gasoline natural gas double fuel is disclosed in the patent of notification number CN207093214U and is started
Electrical Control system, but the system only joined a set of air supply system on the basis of original machine, not account for this life of natural gas
For gas and burning velocity it is low, natural gas introducing directly will be will cause under power settling-discharging in this way and be deteriorated.In publication number
A kind of dual-fuel control system for automobile is proposed in the patent of CN104879226A, joined a combustion within the system
Gas ECU and original machine ECU are mutually communicated for controlling air inlet, igniting and the injection of combustion gas；But the system does not consider that combustion gas is added
The fault diagnosis system that will lead to original machine after ECU frequently reports an error and causes engine that cannot normally run.In publication number
It discloses a set of natural gas gasoline injection system in the patent of CN104806352A to realize while using vapour oil and gas, still
It is two kinds of fuel of sequence-injection in recycling at one, and there is no oily gentle be sufficiently mixed is reached optimum efficiency.
In the prior art, direct injection technology possesses that fuel consumption is low and the high feature of power output.Therefore, GDI engine
(gasoline direct injection engine) is the hot spot of recent domestic internal combustion engine research and development.The present invention is attempted GDI skill
Art is applied in dual fuel engine.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of double fuel control system for GDI supercharging gasoline engine
System, it is contemplated that GDI supercharging gasoline engine is changed to the controlling difficulties after double fuel, comprehensively in view of in-cylinder combustion shape after introducing natural gas
The variation of condition leads to the deterioration of GDI engine performance and discharge, so that engine high-efficiency low-emission under double fuel
Operation.
The invention is realized in this way providing a kind of for GDI supercharging gasoline engine dual-fuel control system, including original machine electricity
Control unit, additional electronic control unit, air cleaner, electronic throttle, air flow meter, mixer, natural gas injector, electronics
Throttle, GDI fuel injector, dual fuel engine and fault diagnosis system, outside air successively pass through air cleaner, electronic throttle
Enter mixer after door and air flow meter, is mixed in mixer with the natural gas sprayed from natural gas injector, after mixing
Gas enter in dual fuel engine and be easily ignited by the spark plug burning, GDI fuel injector is arranged in dual fuel engine, original machine electricity
Total air inflow that unit controls electronic throttle and adjusts dual fuel engine is controlled, electronic control unit is added and controls dual fuel engine
Gasoline the amount of injection and natural gas the amount of injection, original machine electronic control unit is communicated with additional electronic control unit by can line, described attached
Adding electronic control unit includes that intake flow sensor signal acquisition module, natural gas injector drive module, E-Gas signal are adopted
Collect module, knock sensor signal acquisition module, fuel injector drive control module and ignition module, the original machine electronic control unit and
The combustion that additional electronic control unit re-scales in-cylinder combustion situation due to changing because introducing natural gas according to dual fuel engine
Boundary is burnt to control dual fuel engine.
Further, the combustion boundary of the re-calibration includes catching fire and limit of detonability, ignition temperature limit and igniting
Energy limit.
Further, described catch fire takes following method to determine with limit of detonability: testing out primary motivation first in difference
Then mixture strength, engine power and discharge under operating condition test dual fuel engine under certain operating condition and are introducing natural gas
Correspondence parameter afterwards compares；The electronic throttle for adjusting dual fuel engine changes air inflow and adjustment GDI fuel injector drives
Dynamic signal changes distributive value, finds a most dilute mixture strength, and every 50 cylinders pressure and heat release are recorded in 2 minutes
Rate data；If this group of data mean value and the comparison decline of primary motivation are within 50%, which is limit of misfire；Phase
With ground, the air inflow and distributive value of dual fuel engine are gradually changed, is monitored by knock sensor signal acquisition module double
Whether engine fuel explodes, and finds the limit of detonability under the operating condition.
Further, the ignition temperature limit takes following method to determine: testing out primary motivation first in different works
Average combustion temperature under condition, then, tested under certain operating condition correspondence parameter of the dual fuel engine after introducing natural gas into
Row comparison；Under different operating conditions by control the natural gas injector drive module of dual fuel engine introduce it is different natural
Gas, while at the time of adjust ignition signal, and record in 2 minutes the data of mean temperature in every 50 cylinders；If the group
Data mean value and the comparison of primary motivation rise within 10%, then it is also ignition temperature limit that the ignition temperature, which is safe temperature,.
Further, the ignition energy limit takes following method to determine: testing out primary motivation first in different works
Then the torque and emissions data of engine under condition test pair of the dual fuel engine after introducing natural gas under certain operating condition
Parameter is answered to compare；Adjust the ignition module of dual fuel engine gradually to increase required voltage of lighting a fire, and at 2 points
The torque and emissions data of every 50 dual fuel engines are recorded in clock, if this group of data mean value and the comparison of primary motivation decline
It is then ignition energy limit within 5%.
Further, the additional electronic control unit further includes engine speed acquisition module and oxygen sensor signal acquisition mould
Block, the output revolving speed of the engine speed acquisition module acquisition dual fuel engine crankshaft, the speed feedback signal of acquisition
To additional electronic control unit, the oxygen sensor signal acquisition module is used to acquire the oxygen concentration in dual fuel engine cylinder,
The oxygen sensor signal of acquisition is fed back to additional electronic control unit.
Further, the GDI supercharging gasoline engine dual-fuel control system further includes fuel injector simulator, due to real
Gasoline injection amount is controlled by additional electronic control unit, in order not to allow fault diagnosis system to report an error, the oil spout of original machine electronic control unit
Driving signal will be given to fuel injector simulator.
Further, the original machine electronic control unit is in addition to directly receiving E-Gas signal and electronic throttle position sensing
Outside device signal, also by receive by add electronic control unit by can line it is copied come tach signal, oxygen sensor signal, air inlet
Flow sensor signal is for calculating total air inflow and gasoline injection amount.
Further, the additional electronic control unit judges dual fuel engine by tach signal and E-Gas signal
Operating condition is to calculate a gasoline substitution rate, then, calculates natural gas and gasoline point according to intake flow sensor signal
Other the amount of injection.
Compared with prior art, of the invention to be used for GDI supercharging gasoline engine dual-fuel control system, GDI is considered comprehensively
Supercharging gasoline engine is changed to the controlling difficulties after double fuel, both can solve conventional internal combustion using the natural gas petrol engine after repacking
Machine discharges high problem, and can solve the bad problem of natural gas engine accelerating ability, makes natural gas-vapour by Bench calibration
Oily dual fuel engine is mixed in a certain ratio the two kinds of fuel combustions of natural gas and gasoline under the control of the electric control unit and realizes section
About the energy reduces the purpose discharged.The present invention also has the following characteristics that
1. considering when additional electronic control unit is added can cause former engine failure diagnosis system to report an error, the program is improved
Feasible degree；
2. after replacing gasoline in view of natural gas, exhaust energy variation causes turbine enthalpy difference to change, and then causes charge flow rate
Variation avoids the reduction for introducing natural gas after-combustion efficiency；
3. after combustion gas replacing gasoline, flame propagation velocity is reduced, ignition energy need to be increased and improve flame propagation velocity；
4. considering calorific intensity suffered by engine body and thermic load under dual fuel mode to increase, control in-cylinder combustion makes to send out
Motivation reliability service.
Detailed description of the invention
Fig. 1 is that control principle of the present invention for one preferred embodiment of GDI supercharging gasoline engine dual-fuel control system is illustrated
Figure.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It please referring to shown in Fig. 1, the present invention is used for the preferred embodiment of GDI supercharging gasoline engine dual-fuel control system, including
It is original machine electronic control unit 1, additional electronic control unit 2, air cleaner 3, electronic throttle 4, air flow meter 5, mixer 6, natural
Gas blowout emitter 7, E-Gas 8, GDI fuel injector 9, dual fuel engine 10, fuel injector simulator 11 and fault diagnosis system (figure
In be not shown).
The additional electronic control unit 2 includes engine speed acquisition module, oxygen sensor signal acquisition module, charge flow rate
Collecting sensor signal module, natural gas injector drive module, E-Gas signal acquisition module, knock sensor signal are adopted
Collect module, fuel injector drive control module and ignition module.Above-mentioned module is not shown in FIG. 1.The engine speed is adopted
Collect the output revolving speed of module acquisition dual fuel engine crankshaft, the speed feedback signal acquired to additional electronic control unit 2.It is described
Oxygen sensor signal acquisition module is used to acquire the oxygen concentration in dual fuel engine cylinder, and the oxygen sensor signal of acquisition is anti-
It is fed to additional electronic control unit 2.Intake flow sensor signal acquisition module is responsible for acquiring the charge flow rate letter of air flow meter 5
Number, the intake flow sensor signal of acquisition is fed back to additional electronic control unit 2.Natural gas injector drive module is for driving
Natural gas injector 7.E-Gas signal acquisition module is used to acquire the opened and closed positions signal of E-Gas 8, the electricity of acquisition
Seed oil gate signal is fed back respectively to original machine electronic control unit 1 and additional electronic control unit 2.The knock sensor signal acquisition module is used
It feeds back in the knock sensor signal of the detonation signal of acquisition dual fuel engine 10, acquisition to additional electronic control unit 2.It is described
Fuel injector drive control module is for driving GDI fuel injector 9.The ignition module issues igniting letter to dual fuel engine 10
Number.The feedback signal of each module according in Fig. 1 dotted line and arrow direction shown in carry out.
The additional electronic control unit 2 is responsible for receiving the control signal of above-mentioned each module, and by the communication of can line to original machine electricity
Control unit 1 is controlled.Original machine electronic control unit 1 controls electronic throttle 4 and adjusts total air inflow of dual fuel engine 10.It is attached
Electronic control unit 2 is added to control the amount of injection of the gasoline of dual fuel engine 10 and the amount of injection of natural gas.
Outside air successively enters mixer 6 after air cleaner 3, electronic throttle 4 and air flow meter 5, with
From natural gas injector 7 spray natural gas mixed in mixer 6, as shown in filled arrows in figure, mixed gas into
Enter in dual fuel engine 10 and burning is lighted by spark plug 12.GDI fuel injector 9 is arranged in dual fuel engine 10.
The original machine electronic control unit 1 issues electronic throttle driving to control the opening and closing of electronic throttle 4, electronic throttle
4 are fed back its position signal to original machine electronic control unit 1 by throttle position sensor.
Crankshaft sensor 13, oxygen sensor 14 and detonation sensor are also provided on the dual fuel engine 10
15.The crankshaft sensor 13 exports speed feedback signal to additional electronic control unit 2 for the crankshaft of dual fuel engine 10.Institute
It states oxygen sensor 14 and the oxygen concentration signals in 10 cylinder of dual fuel engine is fed back into additional electronic control unit 2.The pinking
Detonation signal in 10 cylinder of dual fuel engine is fed back to additional electronic control unit 2 by sensor 15.
Since real gasoline injection amount is controlled by additional electronic control unit 2, in order not to allow fault diagnosis system to report an error,
The oil spout driving signal of original machine electronic control unit 1 will be given to fuel injector simulator 11.
The original machine electronic control unit 1 is in addition to directly receiving the E-Gas signal of E-Gas 8 and the section of electronic throttle 4
Outside valve position sensor signal, also by receive by add electronic control unit 2 by can line it is copied come tach signal, oxygen biography
Sensor signal, intake flow sensor signal are for calculating total air inflow and gasoline injection amount.
The additional electronic control unit 2 judges the operating condition of dual fuel engine 10 by tach signal and E-Gas signal
To calculating a gasoline substitution rate, then, natural gas and gasoline are calculated respectively according to intake flow sensor signal
The amount of injection.Since GDI fuel injector 9 needs to cool down, which has the upper limit.
On the other hand, the original machine electronic control unit 1 and additional electronic control unit 2 are natural because introducing according to dual fuel engine 10
Gas makes in-cylinder combustion situation change and the combustion boundary that re-scales controls dual fuel engine 10.
The combustion boundary of the re-calibration includes catching fire and limit of detonability, ignition temperature limit and ignition energy limit.
In the present invention, described catch fire takes following method to determine with limit of detonability: testing out primary motivation first not
With mixture strength, engine power and discharge under operating condition, then, dual fuel engine is tested under certain operating condition and is being introduced naturally
Correspondence parameter after gas compares.The electronic throttle 4 for adjusting dual fuel engine 10 changes air inflow and adjustment GDI oil spout
9 driving signal of device changes distributive value, finds a most dilute mixture strength, and every 50 cylinder pressures are recorded in 2 minutes
With heat liberation rate, heat release rate data；If this group of data mean value and the comparison decline of primary motivation are within 50%, which is the pole that catches fire
Limit.In the same manner, the air inflow and distributive value for gradually changing dual fuel engine 10, by knock sensor signal acquisition module come
Whether monitoring dual fuel engine 10 explodes, and finds the limit of detonability under the operating condition.
In the present invention, the ignition temperature limit takes following method to determine: testing out primary motivation first in difference
Then average combustion temperature under operating condition tests correspondence parameter of the dual fuel engine after introducing natural gas under certain operating condition
It compares.Different days is introduced by controlling the natural gas injector drive module of dual fuel engine 10 under different operating conditions
Right gas, while at the time of adjust ignition signal, and record in 2 minutes the data of mean temperature in every 50 cylinders；If should
Group data mean value and the comparison of primary motivation rise within 10%, then the ignition temperature is safe temperature, are also ignition temperature limit
Degree.
In the present invention, the ignition energy limit takes following method to determine: testing out primary motivation first in difference
Then the torque and emissions data of engine under operating condition test dual fuel engine after introducing natural gas under certain operating condition
Corresponding parameter compares.Adjust the ignition module of dual fuel engine 10 gradually to increase required voltage of lighting a fire, and
The torque and emissions data of every 50 dual fuel engines are recorded in 2 minutes, if this group of data mean value and primary motivation pair
It is then ignition energy limit than declining within 5%.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. one kind is used for GDI supercharging gasoline engine dual-fuel control system, which is characterized in that including original machine electronic control unit, additional electrical
Control unit, air cleaner, electronic throttle, air flow meter, mixer, natural gas injector, E-Gas, GDI oil spout
Device, dual fuel engine and fault diagnosis system, outside air successively pass through air cleaner, electronic throttle and air mass flow
Enter mixer after meter, mixed in mixer with the natural gas sprayed from natural gas injector, mixed gas enters double
Burning is easily ignited by the spark plug in engine fuel, GDI fuel injector is arranged in dual fuel engine, original machine electronic control unit control electricity
Sub- air throttle and the total air inflow for adjusting dual fuel engine add the injection of the gasoline of electronic control unit control dual fuel engine
The amount of injection of amount and natural gas, original machine electronic control unit are communicated with additional electronic control unit by can line, the additional electronic control unit packet
Include intake flow sensor signal acquisition module, natural gas injector drive module, E-Gas signal acquisition module, pinking biography
Sensor signal acquisition module, fuel injector drive control module and ignition module, the original machine electronic control unit and additional electronic control unit
It is controlled according to dual fuel engine because introducing the natural gas combustion boundary that re-scales in-cylinder combustion situation due to changing
Dual fuel engine.
2. being used for GDI supercharging gasoline engine dual-fuel control system as described in claim 1, which is characterized in that described to mark again
Fixed combustion boundary includes catching fire and limit of detonability, ignition temperature limit and ignition energy limit.
3. as claimed in claim 2 be used for GDI supercharging gasoline engine dual-fuel control system, which is characterized in that it is described catch fire with
Limit of detonability takes following method to determine: testing out primary motivation mixture strength, engine power under different operating conditions first
And then discharge is tested correspondence parameter of the dual fuel engine after introducing natural gas under certain operating condition and is compared；Adjustment is double
The electronic throttle of engine fuel changes air inflow and adjustment GDI injector driving signal changes distributive value, finds one most
Dilute mixture strength, and every 50 cylinders pressure and heat liberation rate, heat release rate data are recorded in 2 minutes；If this group of data mean value with it is primary
Motivation comparison decline is within 50%, then the mixture strength is limit of misfire；In the same manner, dual fuel engine is gradually changed
Air inflow and distributive value, monitor whether dual fuel engine explodes by knock sensor signal acquisition module, find
Limit of detonability under the operating condition.
4. being used for GDI supercharging gasoline engine dual-fuel control system as claimed in claim 2, which is characterized in that the burning temperature
Degree limit takes following method to determine: average combustion temperature of the primary motivation under different operating conditions is tested out first, then, at certain
Correspondence parameter of the dual fuel engine after introducing natural gas is tested under operating condition to compare；It is double by control under different operating conditions
The natural gas injector drive module of engine fuel introduces different natural gases, while at the time of adjust ignition signal, and
The data of mean temperature in every 50 cylinders are recorded in 2 minutes；If this group of data mean value and the comparison of primary motivation rise 10%
Within, then it is also ignition temperature limit that the ignition temperature, which is safe temperature,.
5. being used for GDI supercharging gasoline engine dual-fuel control system as claimed in claim 2, which is characterized in that the ignition energy
Amount limit takes following method to determine: the torque and emissions data of primary motivation engine under different operating conditions are tested out first,
Then, correspondence parameter of the dual fuel engine after introducing natural gas is tested under certain operating condition to compare；The gradually double combustions of adjustment
The ignition module of engine is expected to increase required voltage of lighting a fire, and is recorded every 50 double fuels in 2 minutes and started
The torque and emissions data of machine, if this group of data mean value and the comparison of primary motivation decline within 5%, for ignition energy limit.
6. being used for GDI supercharging gasoline engine dual-fuel control system as described in claim 1, which is characterized in that the additional electrical
Controlling unit further includes engine speed acquisition module and oxygen sensor signal acquisition module, and the engine speed acquisition module is adopted
Collect the output revolving speed of dual fuel engine crankshaft, the speed feedback signal acquired to additional electronic control unit, the lambda sensor
Signal acquisition module is used to acquire the oxygen concentration in dual fuel engine cylinder, and the oxygen sensor signal of acquisition is fed back to additional
Electronic control unit.
7. being used for GDI supercharging gasoline engine dual-fuel control system as described in claim 1, which is characterized in that the GDI pressurization
Gasoline engine dual-fuel control system further includes fuel injector simulator, since real gasoline injection amount is by adding electronic control unit control
System, in order not to allow fault diagnosis system to report an error, the oil spout driving signal of original machine electronic control unit will be given to fuel injector simulator.
8. being used for GDI supercharging gasoline engine dual-fuel control system as described in claim 1, which is characterized in that the original machine electricity
Unit is controlled other than directly receiving E-Gas signal and position sensor for electronic throttle valve signal, will also be received automatically controlled by adding
Unit by can line it is copied come tach signal, oxygen sensor signal, intake flow sensor signal is for calculating total air inlet
Amount and gasoline injection amount.
9. being used for GDI supercharging gasoline engine dual-fuel control system as described in claim 1, which is characterized in that the additional electrical
Control unit judges dual fuel engine operating condition by tach signal and E-Gas signal to calculate a gasoline substitution
Then rate calculates the amount of injection of natural gas and gasoline respectively according to intake flow sensor signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910173920.6A CN110043384A (en) | 2019-03-08 | 2019-03-08 | One kind being used for GDI supercharging gasoline engine dual-fuel control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910173920.6A CN110043384A (en) | 2019-03-08 | 2019-03-08 | One kind being used for GDI supercharging gasoline engine dual-fuel control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110043384A true CN110043384A (en) | 2019-07-23 |
Family
ID=67274639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910173920.6A Pending CN110043384A (en) | 2019-03-08 | 2019-03-08 | One kind being used for GDI supercharging gasoline engine dual-fuel control system |
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| CN (1) | CN110043384A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110067674A1 (en) * | 2004-11-18 | 2011-03-24 | Massachusetts Institute Of Technology | Spark ignition engine that uses intake port injection of alcohol to extend knock limits |
| CN102486124A (en) * | 2010-12-03 | 2012-06-06 | 现代自动车株式会社 | System for preventing knocking and method for controlling same |
| CN103498732A (en) * | 2013-10-23 | 2014-01-08 | 深圳市国炬天然气汽车技术有限公司 | Oil control system of diesel/natural gas dual-fuel internal combustion engine |
| CN108691674A (en) * | 2018-06-13 | 2018-10-23 | 西华大学 | A kind of GDI engine natural gas-gasoline double-fuel electric-control system and control strategy |
-
2019
- 2019-03-08 CN CN201910173920.6A patent/CN110043384A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110067674A1 (en) * | 2004-11-18 | 2011-03-24 | Massachusetts Institute Of Technology | Spark ignition engine that uses intake port injection of alcohol to extend knock limits |
| CN102486124A (en) * | 2010-12-03 | 2012-06-06 | 现代自动车株式会社 | System for preventing knocking and method for controlling same |
| CN103498732A (en) * | 2013-10-23 | 2014-01-08 | 深圳市国炬天然气汽车技术有限公司 | Oil control system of diesel/natural gas dual-fuel internal combustion engine |
| CN108691674A (en) * | 2018-06-13 | 2018-10-23 | 西华大学 | A kind of GDI engine natural gas-gasoline double-fuel electric-control system and control strategy |
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