CN110107413B - A kind of calculation method of injection advance angle, device and electronic equipment - Google Patents
A kind of calculation method of injection advance angle, device and electronic equipment Download PDFInfo
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- CN110107413B CN110107413B CN201910588335.2A CN201910588335A CN110107413B CN 110107413 B CN110107413 B CN 110107413B CN 201910588335 A CN201910588335 A CN 201910588335A CN 110107413 B CN110107413 B CN 110107413B
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- diesel oil
- oil injection
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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
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0626—Measuring or estimating parameters related to the fuel supply system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
- F02D19/0649—Liquid fuels having different boiling temperatures, volatilities, densities, viscosities, cetane or octane numbers
- F02D19/0652—Biofuels, e.g. plant oils
- F02D19/0655—Biofuels, e.g. plant oils at least one fuel being an alcohol, e.g. ethanol
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/08—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0614—Actual fuel mass or fuel injection amount
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
Abstract
The present invention provides a kind of calculation method of injection advance angle, device and electronic equipments, alcohol ratio is mixed based on described, determine the corresponding advance angle correction value of diesel oil injection advance angle, based on the advance angle correction value, the advance angle basic value is modified, revised diesel oil injection advance angle is obtained.Through the invention the economy, dynamic property and safety of engine can be improved according to alcohol is mixed than adjustment diesel oil injection advance angle.
Description
Technical field
The present invention relates to engine arts, more specifically, being related to a kind of calculation method of injection advance angle, device and electricity
Sub- equipment.
Background technique
When methanol diesel-oil dual fuel engine enters dual fuel mode, since methanol has, the latent heat of vaporization is larger and itself contains
The higher equal fuel characteristics of oxygen amount, engine operate under different operating conditions, and with alcohol is mixed than variation, the diesel oil ignited moment is to engine
Economy, dynamic property and safety all have a major impact.
For current methanol diesel-oil dual fuel engine in dual fuel mode, diesel oil injection advance angle uses specific empirical value
Constant can not be adjusted according to alcohol ratio is mixed.
Summary of the invention
In view of this, the present invention provides calculation method, device and the electronic equipment of a kind of injection advance angle, it can not with solution
According to mixing the problem of alcohol ratio is adjusted diesel oil injection advance angle.
In order to solve the above technical problems, present invention employs following technical solutions:
A kind of calculation method of injection advance angle, comprising:
In methanol diesel-oil dual fuel mode, obtains engine speed, distributive value setting value and mix alcohol ratio；
According to the engine speed and the distributive value setting value, the corresponding advance angle base of diesel oil injection advance angle is determined
Plinth value；
Alcohol ratio is mixed based on described, determines the corresponding advance angle correction value of diesel oil injection advance angle；
Based on the advance angle correction value, the advance angle basic value is modified, obtains revised diesel oil oil spout
Advance angle.
Preferably, described according to the engine speed and the distributive value setting value, determine diesel oil injection advance angle pair
The advance angle basic value answered, comprising:
Engine speed, distributive value setting value are obtained, the between the corresponding advance angle basic value of diesel oil injection advance angle
One corresponding relationship；
It is searched from first corresponding relationship corresponding with the engine speed and the distributive value setting value described
Advance angle basic value.
Preferably, described to mix alcohol ratio based on described, it determines the corresponding advance angle correction value of diesel oil injection advance angle, wraps
It includes:
Obtain the second corresponding relationship mixed between alcohol ratio advance angle correction value corresponding with diesel oil injection advance angle；
It is searched from second corresponding relationship and mixes the corresponding advance angle correction value of alcohol ratio with described.
Preferably, described to be based on the advance angle correction value, the advance angle basic value is modified, after obtaining amendment
Diesel oil injection advance angle, comprising:
It regard the sum of the advance angle correction value and the advance angle basic value as the revised diesel oil injection advance
Angle.
A kind of computing device of injection advance angle, comprising:
Data acquisition module, in methanol diesel-oil dual fuel mode, obtain engine speed, distributive value setting value with
And mix alcohol ratio；
Basic value computing module, for determining diesel oil oil spout according to the engine speed and the distributive value setting value
The corresponding advance angle basic value of advance angle；
Correction value computing module determines that the corresponding advance angle of diesel oil injection advance angle is repaired for mixing alcohol ratio based on described
Positive value；
Correction module is modified the advance angle basic value, is corrected for being based on the advance angle correction value
Diesel oil injection advance angle afterwards.
Preferably, the basic value computing module is used for according to the engine speed and the distributive value setting value, really
When determining the corresponding advance angle basic value of diesel oil injection advance angle, it is specifically used for:
Engine speed, distributive value setting value are obtained, the between the corresponding advance angle basic value of diesel oil injection advance angle
One corresponding relationship；Institute corresponding with the engine speed and the distributive value setting value is searched from first corresponding relationship
State advance angle basic value.
Preferably, the correction value computing module is used to mix alcohol ratio based on described, determines that diesel oil injection advance angle is corresponding
Advance angle correction value when, be specifically used for:
Obtain the second corresponding relationship mixed between alcohol ratio advance angle correction value corresponding with diesel oil injection advance angle；From institute
It states to search in the second corresponding relationship and mixes the corresponding advance angle correction value of alcohol ratio with described.
Preferably, the correction module is used to be based on the advance angle correction value, repairs to the advance angle basic value
Just, when obtaining revised diesel oil injection advance angle, it is specifically used for:
It regard the sum of the advance angle correction value and the advance angle basic value as the revised diesel oil injection advance
Angle.
A kind of electronic equipment, comprising: memory and processor；
Wherein, the memory is for storing program；
Processor caller is simultaneously used for:
In methanol diesel-oil dual fuel mode, obtains engine speed, distributive value setting value and mix alcohol ratio；
According to the engine speed and the distributive value setting value, the corresponding advance angle base of diesel oil injection advance angle is determined
Plinth value；
Alcohol ratio is mixed based on described, determines the corresponding advance angle correction value of diesel oil injection advance angle；
Based on the advance angle correction value, the advance angle basic value is modified, obtains revised diesel oil oil spout
Advance angle.
Compared to the prior art, the invention has the following advantages:
The present invention provides a kind of calculation method of injection advance angle, device and electronic equipments, mix alcohol ratio based on described,
It determines the corresponding advance angle correction value of diesel oil injection advance angle, the advance angle correction value is based on, to the advance angle basic value
It is modified, obtains revised diesel oil injection advance angle.Through the invention diesel oil injection advance can be adjusted according to alcohol ratio is mixed
The economy, dynamic property and safety of engine are improved in angle.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of method flow diagram of the calculation method of injection advance angle provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the computing device of injection advance angle provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Engine operates under different operating conditions, as methanol ratio changes, warp of the diesel oil ignited moment to engine
Ji property, dynamic property and safety all have a major impact, when the diesel oil ignited moment is that diesel oil is sprayed according to diesel oil injection advance angle
It carves.It easily causes engine operation rough when diesel oil injection advance angle is excessive, engine knock phenomenon occurs, when diesel oil injection advance angle mistake
It is small, it is possible to occur catching fire too late, the heat that fuel combustion is released cannot efficiently use, and make dual fuel engine dynamic property economy
Property decline.Therefore, in order to improve the economy, dynamic property and safety of engine, the embodiment of the present invention is proposed.
The embodiment of the invention provides a kind of calculation method of injection advance angle, the calculation method of the injection advance angle can be with
Applied to electronic control unit ECU.Referring to Fig.1, the calculation method of injection advance angle may include:
S11, in methanol diesel-oil dual fuel mode, obtain engine speed, distributive value setting value and mix alcohol ratio.
Wherein, both of which is set in the embodiment of the present invention, one is methanol diesel-oil dual fuel mode, dual fuel modes
Refer in cylinder while spraying into the combustion mode of two kinds of fuel of diesel oil and methanol.In this mode using in the embodiment of the present invention
Injection advance angle carries out diesel injection.Another mode is pure diesel fuel mode, and in this mode, injection advance angle is to be based on starting
Machine operating condition changes and searches and obtain in the arteries and veins spectrogram demarcated.
In methanol diesel-oil dual fuel mode, can be obtained from CAN bus engine speed, distributive value setting value and
Mix alcohol ratio.Wherein, it mixes alcohol and sprays into cylinder the methanol and total quality of fuel ratio that participate in burning than referring to.
S12, according to the engine speed and the distributive value setting value, determine that diesel oil injection advance angle is corresponding in advance
Angle basic value.
Wherein, when injection advance angle refers to fuel injector commencement of fuel injection, the crank angle of plunger distance compression top center.
Specifically, the corresponding advance angle basic value of diesel oil injection advance angle is determined in the present embodiment first, then to this
Value is modified, and can be obtained according to mixing alcohol than obtained injection advance angle.
S13, alcohol ratio is mixed based on described, determines the corresponding advance angle correction value of diesel oil injection advance angle.
Engine operating condition is assured that out based on engine speed and distributive value setting value, in the engine operating condition, just
It can be calculated and mix alcohol ratio, by mixing alcohol ratio, determine advance angle correction value.
S14, it is based on the advance angle correction value, the advance angle basic value is modified, revised diesel oil is obtained
Injection advance angle.
Optionally, on the basis of the present embodiment, the sum of the advance angle correction value and the advance angle basic value are made
For the revised diesel oil injection advance angle.
In the present embodiment, alcohol ratio is mixed based on described, the corresponding advance angle correction value of diesel oil injection advance angle is determined, is based on
The advance angle correction value is modified the advance angle basic value, obtains revised diesel oil injection advance angle.Pass through this
Invention can improve the economy, dynamic property and safety of engine according to alcohol is mixed than adjustment diesel oil injection advance angle.
In addition, the embodiment of the present invention can adjust automatically methanol diesel-oil dual fuel engine diesel oil under dual fuel mode draw
Fire the moment, due to changing with methanol ratio, the diesel oil ignited moment to the economy, dynamic property and safety of engine all
It has a major impact, synthesis improves the dynamic property, economy and reliability of dual fuel engine through the embodiment of the present invention.Separately
Outside, in order to save fuel, exhaust emission is reduced, methanol dual fuel engine application is further extensive, diesel oil when dual fuel mode
Moment of igniting adjusts not only protect engine in real time, but also is guaranteeing that rough running and good engine warp do not occur for engine
It is as much as possible under the premise of Ji property to mix burning methanol.Therefore this technology has vast market prospect.
Third, function of the embodiment of the present invention is simple, Yi Shixian, at low cost.And can according to engine fuel mode and
Operating condition automatically switches, and can be applicable on existing type.
Optionally, based on any of the above embodiments, step S12 may include:
Engine speed, distributive value setting value are obtained, the between the corresponding advance angle basic value of diesel oil injection advance angle
One corresponding relationship；Institute corresponding with the engine speed and the distributive value setting value is searched from first corresponding relationship
State advance angle basic value.
Specifically, engine speed, distributive value setting value, between the corresponding advance angle basic value of diesel oil injection advance angle
First corresponding relationship can be embodied in a manner of arteries and veins spectrogram, and arteries and veins spectrogram in different operating conditions and can mix alcohol ratio according to engine model
Flexible calibration is carried out, to accurately control economy, dynamic property and the safety of dual fuel engine.
After arteries and veins spectrogram has been determined, engine speed, the distributive value setting value with current time are searched from arteries and veins spectrogram
Corresponding advance angle basic value.
Optionally, on the basis of the present embodiment, step S13 may include:
Obtain the second corresponding relationship mixed between alcohol ratio advance angle correction value corresponding with diesel oil injection advance angle；From institute
It states to search in the second corresponding relationship and mixes the corresponding advance angle correction value of alcohol ratio with described.
Specifically, the second corresponding relationship mixed between alcohol ratio advance angle correction value corresponding with diesel oil injection advance angle can
It is shown by a manner of advance angle fair curve, advance angle fair curve in different operating conditions and can mix alcohol ratio according to engine model
Flexible calibration is carried out, to accurately control economy, dynamic property and the safety of dual fuel engine.
After advance angle fair curve has been determined, is searched from advance angle fair curve and mix alcohol ratio with current time
Corresponding advance angle correction value.
In the present embodiment, on the basis of former ECU is to methanol, diesel dual-fuel control logic, when detecting dual fuel mode
Automatically switch diesel oil injection advance angle calculation, i.e., by the injection advance angle basic value based on engine operating condition and based on mixing alcohol
Injection advance angle correction value than variation is added as diesel oil injection advance angle, ensure that dynamic property, economy that double fuel starts
Property and safety.
Optionally, on the basis of the embodiment of the calculation method of above-mentioned injection advance angle, another embodiment of the present invention
A kind of computing device of injection advance angle is provided, referring to Fig. 2, may include:
Data acquisition module 101, in methanol diesel-oil dual fuel mode, obtaining engine speed, distributive value setting
It is worth and mixes alcohol ratio；
Basic value computing module 102, for determining that diesel oil is sprayed according to the engine speed and the distributive value setting value
The corresponding advance angle basic value of advance angle oil；
Correction value computing module 103 determines the corresponding advance angle of diesel oil injection advance angle for mixing alcohol ratio based on described
Correction value；
Correction module 104 is modified the advance angle basic value, obtains for being based on the advance angle correction value
Revised diesel oil injection advance angle.
Optionally, on the basis of the present embodiment, the correction module is used to be based on the advance angle correction value, to described
Advance angle basic value is modified, and when obtaining revised diesel oil injection advance angle, is specifically used for:
It regard the sum of the advance angle correction value and the advance angle basic value as the revised diesel oil injection advance
Angle.
In the present embodiment, alcohol ratio is mixed based on described, the corresponding advance angle correction value of diesel oil injection advance angle is determined, is based on
The advance angle correction value is modified the advance angle basic value, obtains revised diesel oil injection advance angle.Pass through this
Invention can improve the economy, dynamic property and safety of engine according to alcohol is mixed than adjustment diesel oil injection advance angle.
In addition, the embodiment of the present invention can adjust automatically methanol diesel-oil dual fuel engine diesel oil under dual fuel mode draw
Fire the moment, due to changing with methanol ratio, the diesel oil ignited moment to the economy, dynamic property and safety of engine all
It has a major impact, synthesis improves the dynamic property, economy and reliability of dual fuel engine through the embodiment of the present invention.Separately
Outside, in order to save fuel, exhaust emission is reduced, methanol dual fuel engine application is further extensive, diesel oil when dual fuel mode
Moment of igniting adjusts not only protect engine in real time, but also is guaranteeing that rough running and good engine warp do not occur for engine
It is as much as possible under the premise of Ji property to mix burning methanol.Therefore this technology has vast market prospect.
Third, function of the embodiment of the present invention is simple, Yi Shixian, at low cost.And can according to engine fuel mode and
Operating condition automatically switches, and can be applicable on existing type.
It should be noted that the course of work of the modules in the present embodiment, please refers to corresponding in above-described embodiment
Illustrate, details are not described herein.
Optionally, on the basis of the embodiment of any of the above-described computing device, the basic value computing module is used for foundation
The engine speed and the distributive value setting value, when determining the corresponding advance angle basic value of diesel oil injection advance angle, specifically
For:
Engine speed, distributive value setting value are obtained, the between the corresponding advance angle basic value of diesel oil injection advance angle
One corresponding relationship；Institute corresponding with the engine speed and the distributive value setting value is searched from first corresponding relationship
State advance angle basic value.
Optionally, on the basis of the present embodiment, the correction value computing module is used to mix alcohol ratio based on described, determines
When the corresponding advance angle correction value of diesel oil injection advance angle, it is specifically used for:
Obtain the second corresponding relationship mixed between alcohol ratio advance angle correction value corresponding with diesel oil injection advance angle；From institute
It states to search in the second corresponding relationship and mixes the corresponding advance angle correction value of alcohol ratio with described.
In the present embodiment, on the basis of former ECU is to methanol, diesel dual-fuel control logic, when detecting dual fuel mode
Automatically switch diesel oil injection advance angle calculation, i.e., by the injection advance angle basic value based on engine operating condition and based on mixing alcohol
Injection advance angle correction value than variation is added as diesel oil injection advance angle, ensure that dynamic property, economy that double fuel starts
Property and safety.
It should be noted that the course of work of the modules in the present embodiment, please refers to corresponding in above-described embodiment
Illustrate, details are not described herein.
Optionally, on the basis of the calculation method of above-mentioned injection advance angle and the embodiment of device, of the invention is another
Embodiment provides a kind of electronic equipment, comprising: memory and processor；
Wherein, the memory is for storing program；
Processor caller is simultaneously used for:
In methanol diesel-oil dual fuel mode, obtains engine speed, distributive value setting value and mix alcohol ratio；
According to the engine speed and the distributive value setting value, the corresponding advance angle base of diesel oil injection advance angle is determined
Plinth value；
Alcohol ratio is mixed based on described, determines the corresponding advance angle correction value of diesel oil injection advance angle；
Based on the advance angle correction value, the advance angle basic value is modified, obtains revised diesel oil oil spout
Advance angle.
Further, described according to the engine speed and the distributive value setting value, determine diesel oil injection advance angle pair
The advance angle basic value answered, comprising:
Engine speed, distributive value setting value are obtained, the between the corresponding advance angle basic value of diesel oil injection advance angle
One corresponding relationship；
It is searched from first corresponding relationship corresponding with the engine speed and the distributive value setting value described
Advance angle basic value.
Further, described to mix alcohol ratio based on described, it determines the corresponding advance angle correction value of diesel oil injection advance angle, wraps
It includes:
Obtain the second corresponding relationship mixed between alcohol ratio advance angle correction value corresponding with diesel oil injection advance angle；
It is searched from second corresponding relationship and mixes the corresponding advance angle correction value of alcohol ratio with described.
Further, described to be based on the advance angle correction value, the advance angle basic value is modified, after obtaining amendment
Diesel oil injection advance angle, comprising:
It regard the sum of the advance angle correction value and the advance angle basic value as the revised diesel oil injection advance
Angle.
In the present embodiment, alcohol ratio is mixed based on described, the corresponding advance angle correction value of diesel oil injection advance angle is determined, is based on
The advance angle correction value is modified the advance angle basic value, obtains revised diesel oil injection advance angle.Pass through this
Invention can improve the economy, dynamic property and safety of engine according to alcohol is mixed than adjustment diesel oil injection advance angle.
In addition, the embodiment of the present invention can adjust automatically methanol diesel-oil dual fuel engine diesel oil under dual fuel mode draw
Fire the moment, due to changing with methanol ratio, the diesel oil ignited moment to the economy, dynamic property and safety of engine all
It has a major impact, synthesis improves the dynamic property, economy and reliability of dual fuel engine through the embodiment of the present invention.Separately
Outside, in order to save fuel, exhaust emission is reduced, methanol dual fuel engine application is further extensive, diesel oil when dual fuel mode
Moment of igniting adjusts not only protect engine in real time, but also is guaranteeing that rough running and good engine warp do not occur for engine
It is as much as possible under the premise of Ji property to mix burning methanol.Therefore this technology has vast market prospect.
Third, function of the embodiment of the present invention is simple, Yi Shixian, at low cost.And can according to engine fuel mode and
Operating condition automatically switches, and can be applicable on existing type.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of calculation method of injection advance angle characterized by comprising
In methanol diesel-oil dual fuel mode, obtains engine speed, distributive value setting value and mix alcohol ratio；It is described to mix alcohol ratio
Refer to the methanol and total quality of fuel ratio for spraying into cylinder and participating in burning；
According to the engine speed and the distributive value setting value, the corresponding advance angle basis of diesel oil injection advance angle is determined
Value；
Alcohol ratio is mixed based on described, determines the corresponding advance angle correction value of diesel oil injection advance angle；
Based on the advance angle correction value, the advance angle basic value is modified, obtains revised diesel oil injection advance
Angle.
2. calculation method according to claim 1, which is characterized in that described according to the engine speed and the oil spout
Setting value is measured, determines the corresponding advance angle basic value of diesel oil injection advance angle, comprising:
Obtain engine speed, distributive value setting value, first pair between the corresponding advance angle basic value of diesel oil injection advance angle
It should be related to；
Described shift to an earlier date corresponding with the engine speed and the distributive value setting value is searched from first corresponding relationship
Angle basic value.
3. calculation method according to claim 1, which is characterized in that it is described to mix alcohol ratio based on described, determine that diesel oil sprays
The corresponding advance angle correction value of advance angle oil, comprising:
Obtain the second corresponding relationship mixed between alcohol ratio advance angle correction value corresponding with diesel oil injection advance angle；
It is searched from second corresponding relationship and mixes the corresponding advance angle correction value of alcohol ratio with described.
4. calculation method according to claim 1, which is characterized in that it is described to be based on the advance angle correction value, to described
Advance angle basic value is modified, and obtains revised diesel oil injection advance angle, comprising:
It regard the sum of the advance angle correction value and the advance angle basic value as the revised diesel oil injection advance angle.
5. a kind of computing device of injection advance angle characterized by comprising
Data acquisition module, in methanol diesel-oil dual fuel mode, obtaining engine speed, distributive value setting value and mixing
Alcohol ratio；The alcohol of mixing is than referring to the methanol and total quality of fuel ratio that spray into cylinder and participate in burning；
Basic value computing module, for determining diesel oil injection advance according to the engine speed and the distributive value setting value
The corresponding advance angle basic value in angle；
Correction value computing module determines the corresponding advance angle correction value of diesel oil injection advance angle for mixing alcohol ratio based on described；
Correction module is modified the advance angle basic value, obtains revised for being based on the advance angle correction value
Diesel oil injection advance angle.
6. computing device according to claim 5, which is characterized in that the basic value computing module is used for according to the hair
Motivation revolving speed and the distributive value setting value are specifically used for when determining the corresponding advance angle basic value of diesel oil injection advance angle:
Obtain engine speed, distributive value setting value, first pair between the corresponding advance angle basic value of diesel oil injection advance angle
It should be related to；From first corresponding relationship search it is corresponding with the engine speed and the distributive value setting value described in mention
Anterior angle basic value.
7. computing device according to claim 5, which is characterized in that the correction value computing module is used to mix based on described
Alcohol ratio is specifically used for when determining the corresponding advance angle correction value of diesel oil injection advance angle:
Obtain the second corresponding relationship mixed between alcohol ratio advance angle correction value corresponding with diesel oil injection advance angle；From described
It is searched in two corresponding relationships and mixes the corresponding advance angle correction value of alcohol ratio with described.
8. computing device according to claim 5, which is characterized in that the correction module is used to repair based on the advance angle
Positive value is modified the advance angle basic value, when obtaining revised diesel oil injection advance angle, is specifically used for:
It regard the sum of the advance angle correction value and the advance angle basic value as the revised diesel oil injection advance angle.
9. a kind of electronic equipment characterized by comprising memory and processor；
Wherein, the memory is for storing program；
Processor caller is simultaneously used for:
In methanol diesel-oil dual fuel mode, obtains engine speed, distributive value setting value and mix alcohol ratio；It is described to mix alcohol ratio
Refer to the methanol and total quality of fuel ratio for spraying into cylinder and participating in burning；
According to the engine speed and the distributive value setting value, the corresponding advance angle basis of diesel oil injection advance angle is determined
Value；
Alcohol ratio is mixed based on described, determines the corresponding advance angle correction value of diesel oil injection advance angle；
Based on the advance angle correction value, the advance angle basic value is modified, obtains revised diesel oil injection advance
Angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910588335.2A CN110107413B (en) | 2019-07-02 | 2019-07-02 | A kind of calculation method of injection advance angle, device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910588335.2A CN110107413B (en) | 2019-07-02 | 2019-07-02 | A kind of calculation method of injection advance angle, device and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110107413A CN110107413A (en) | 2019-08-09 |
| CN110107413B true CN110107413B (en) | 2019-11-05 |
Family
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| CN110778434B (en) * | 2019-09-25 | 2020-09-29 | 潍柴动力股份有限公司 | Method and device for determining oil injection angle of diesel engine in single camshaft mode |
| CN112302819B (en) * | 2020-10-30 | 2022-09-20 | 中国航空工业集团公司西安航空计算技术研究所 | Method for obtaining fuel injection advance angle based on multi-parameter electronic control diesel engine starting |
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