CN110273773A - The control method and device of natural gas engine injection - Google Patents
The control method and device of natural gas engine injection Download PDFInfo
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- CN110273773A CN110273773A CN201910581135.4A CN201910581135A CN110273773A CN 110273773 A CN110273773 A CN 110273773A CN 201910581135 A CN201910581135 A CN 201910581135A CN 110273773 A CN110273773 A CN 110273773A
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- injection
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- injection duration
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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
- F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
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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
- F02D41/30—Controlling fuel injection
- F02D41/32—Controlling fuel injection of the low pressure type
- F02D41/34—Controlling fuel injection of the low pressure type with means for controlling injection timing or duration
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The present invention provides a kind of control methods of natural gas engine injection, comprising: obtains injection signal；It wherein, include: nozzle parameter and the first injection duration in the injection signal；The second injection duration is calculated according to the nozzle parameter；Judge whether the second injection duration and the first injection duration are consistent；If judging, the second injection duration is greater than the first injection duration, the second injection duration is replaced the first injection duration in the injection signal, and control the natural gas engine and sprayed in third injection duration；Wherein, the difference of a length of second injection duration and the first injection duration when third is sprayed.If by judging that the second injection duration is greater than the first injection duration, second injection duration is updated to injection signal, and control natural gas engine and sprayed in third injection duration, it allows the amount of injection more to match current working, improves the followability of excess air coefficient.
Description
Technical field
The present invention relates to natural gas engine field, in particular to a kind of the control method and dress of natural gas engine injection
It sets.
Background technique
With the development of economy, almost every household can all have an one's own automobile, lead to oil price also increasingly
Height, in comparison the price of natural gas is more much lower than gasoline and diesel oil, and fuel cost generally saves 50% or so, makes operation costs
It is greatly reduced.Due to the presence of oil gas price difference, and changes fare and can be withdrawn within 1 year.So natural gas engine is got over
Come more welcomed by the people.
Currently, natural gas engine is to be sprayed according to the ejection information got from air intake duct, before each injection,
It will be gone to calculate this amount of injection according to the nozzle parameter in ejection information, and the ejection information including nozzle parameter is in a day
It is only updated once in right gas engine operational cycle, if after the completion of the calculating of nozzle parameter, and detect that operating condition becomes
Change (having impact or anticlimax), since the nozzle parameter to be executed has been updated completion, the amount of injection of this execution of the cylinder is still
According to what is calculated before operating condition variation.When leading to occur transient condition, the followability of excess air coefficient is bad.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of control method and device of natural gas engine injection, hair is improved
When raw transient condition, the followability of excess air coefficient.
To achieve the above object, the embodiment of the present invention provides the following technical solutions:
A kind of control method of natural gas engine, comprising:
Obtain injection signal；It wherein, include: nozzle parameter and the first injection duration in the injection signal；
The second injection duration is calculated according to the nozzle parameter；
Judge whether the second injection duration and the first injection duration are consistent；
If judging, the second injection duration is greater than the first injection duration, and the second injection duration is replaced institute
The first injection duration in injection signal is stated, and controls the natural gas engine and is sprayed in third injection duration
It penetrates；Wherein, the difference of a length of second injection duration and the first injection duration when the third is sprayed.
Optionally, the acquisition injection signal, comprising:
In a working cycles of the natural gas engine, the injection signal is repeatedly obtained；Wherein, described adjacent
It obtains twice and is divided into the first preset interval between the injection signal.
Optionally, described that the second injection duration is replaced into the first injection duration in the injection signal, and
The natural gas engine is controlled to be sprayed in third injection duration, comprising:
The second injection duration is replaced to the first injection duration in the injection signal；
The difference for calculating the second injection duration and the first injection duration obtains the third injection duration；
According to it is described second injection duration at the end of the natural gas engine eject position, the minimum interval of injection and
Injection prepares the duration range that duration calculation goes out the third injection duration；
Judge the third injection duration whether within the scope of the duration of third injection duration；
If judging, the third injection duration within the scope of the duration of third injection duration, controls the natural gas
Engine is sprayed in third injection duration.
Optionally, the control method of the natural gas engine injection, further includes:
If judging, the second injection duration is less than or equal to the first injection duration, by the second injection duration
Replace the first injection duration in the injection signal.
Optionally, it is described by it is described second injection duration replace in the injection signal it is described first injection duration it
Before, further includes:
Judge whether the injection valve of the natural gas engine is being opened；
If judging, the injection valve is being opened, and closes the injection valve.
A kind of control device of natural gas engine injection, comprising:
Acquiring unit, for obtaining injection signal；It wherein, include: nozzle parameter and the first injection in the injection signal
Duration；
First computing unit, for the second injection duration to be calculated according to the nozzle parameter；
First judging unit, for judging whether the second injection duration and the first injection duration are consistent；
Control unit, if judging for first judging unit, the second injection duration is greater than first spray
Duration is penetrated, the second injection duration is replaced into the first injection duration in the injection signal, and control described natural
Gas engine is sprayed in third injection duration；Wherein, a length of second injection duration and the when the third is sprayed
The difference of one injection duration.
Optionally, acquiring unit, comprising:
Subelement is obtained, in a working cycles of the natural gas engine, repeatedly obtaining the injection letter
Number；Wherein, adjacent obtain twice is divided into the first preset interval between the injection signal.
Optionally, described control unit, comprising:
First replacement unit, when for the second injection duration to be replaced the described first injection in the injection signal
It is long；
Second computing unit is obtained for calculating the difference of the second injection duration and the first injection duration
The third sprays duration；
Third computing unit, for the injection position according to the natural gas engine at the end of the second injection duration
It sets, the minimum interval of injection and injection prepare the duration range that duration calculation goes out the third injection duration；
Second judgment unit, for judge third injection duration whether third injection duration duration range
It is interior；
Subelement is controlled, if judging for the second judgment unit, the third injection duration is sprayed in the third
It penetrates within the scope of the duration of duration, controls the natural gas engine and sprayed in third injection duration.
Optionally, the device of the control injection of natural gas engine, further includes:
Second replacement unit, if judging that the second injection duration is less than or equal to institute for first judging unit
The first injection duration is stated, the second injection duration is replaced to the first injection duration in the injection signal.
Third judging unit, for judging whether the injection valve of the natural gas engine is being opened；
Closing unit then closes the spray if judging that the injection valve is being opened for the third judging unit
Penetrate valve.
As it can be seen from the above scheme being obtained in a kind of control method and device of natural gas engine injection provided by the present application
Take injection signal；It wherein, include: nozzle parameter and the first injection duration in the injection signal；According to the nozzle parameter meter
Calculation obtains the second injection duration；Judge whether the second injection duration and the first injection duration are consistent；If judging institute
State the second injection duration be greater than it is described first injection duration, by it is described second injection duration replace in the injection signal described in
First injection duration, and control the natural gas engine and sprayed in third injection duration；Wherein, the third injection
The difference of second injection duration described in Shi Changwei and the first injection duration.If by judging that the second injection duration is greater than institute
The first injection duration is stated, the second injection duration is updated to the injection signal, and control the natural gas engine and exist
It is sprayed in third injection duration, allows the amount of injection more to match current working, improve the followability of excess air coefficient.
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 specific flow chart of the control method of natural gas engine injection provided in an embodiment of the present invention；
Fig. 2 be another embodiment of the present invention provides a kind of natural gas engine injection control method detailed process
Figure；
Fig. 3 be another embodiment of the present invention provides a kind of natural gas engine injection control method detailed process
Figure；
Fig. 4 be another embodiment of the present invention provides a kind of natural gas engine injection control device schematic diagram；
Fig. 5 be another embodiment of the present invention provides a kind of natural gas engine injection control device schematic diagram；
Fig. 6 be another embodiment of the present invention provides a kind of natural gas engine injection control device schematic diagram.
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.
The embodiment of the present invention provides a kind of control method of natural gas engine injection, as shown in Figure 1, comprising:
S101, injection signal is obtained.
Wherein, injection signal includes nozzle parameter and the first injection duration.
Specifically, nozzle parameter includes injection advance angle, the amount of injection that this time natural gas engine needs to spray etc.；First
The time that a length of natural gas engine is sprayed in the upper a cycle when this obtains injection signal when injection.
Optionally, in another embodiment of the present invention, a kind of embodiment of step S101, comprising:
In a working cycles of natural gas engine, injection signal is repeatedly obtained.
Wherein, the first preset interval is divided between the adjacent injection signal of acquisition twice.
Specifically, a working cycles of natural gas engine are 720 °, it is more during the specific implementation of the present embodiment
The secondary angle interval for obtaining injection signal is identical, for 180 ° but can be not limited to injection signal of every 180 ° of acquisitions.
S102, the second injection duration is calculated according to nozzle parameter.
Wherein, a length of natural gas engine carries out the duration sprayed at this when second sprays, i.e.,
Natural gas engine carries out the theoretical value of injection duration in this injection.
Specifically, this time natural gas engine needs the injection sprayed according to the injection advance angle for including in injection signal
The second injection duration is calculated in amount.
S103, judge whether the second injection duration and the first injection duration are consistent.
Specifically, if judging, the second injection duration is greater than the first injection duration, executes step 104.
During the specific implementation of the present embodiment, if the second injection duration is greater than the first injection duration, illustrate,
Nozzle parameter in this injection signal got is changed, and thens follow the steps 104.
Optionally, in another embodiment of the invention, a kind of embodiment of step 103, further includes:
If judging, the second injection duration is less than or equal to the first injection duration, and the second injection duration is replaced injection signal
In first injection duration.
During the specific implementation of the present embodiment, if the second injection duration is less than or equal to the first injection duration,
It illustrates, the nozzle parameter in this injection signal got is changed；Due to a length of being less than or waiting when, the second injection
Duration is sprayed in first, only needs to protect the second injection duration replacement of the first injection duration in injection signal at this time
Demonstrate,proving injection duration of the next natural gas engine in injection is correct injection duration.
Optionally, in another embodiment of the invention, by the first injection in the second injection duration replacement injection signal
Before duration, as shown in Figure 2, further includes:
S201, judge whether the injection valve of natural gas engine is being opened；
Specifically, if judging, injection valve is being opened, and thens follow the steps S202.
S202, injection valve is closed.
During the specific implementation of the present embodiment, due to, second injection when it is a length of be less than or equal to the first injection duration,
If natural gas engine, which continues injection, will lead to the amount of injection greater than the amount of injection that should be sprayed, injection is closed at this time
Valve, so that the amount of injection more matches current operating condition.
S104, first in the second injection duration replacement injection signal is sprayed into duration, and controls natural gas engine and exists
It is sprayed in third injection duration.
Wherein, the difference of a length of second injection duration and the first injection duration when third is sprayed.
Specifically, ought judge in step s 103, the second injection duration is greater than the first injection duration, first passes through calculating
To second injection duration with first injection duration difference, in order to make the amount of injection more match current operating condition, need into
The duration of row postinjection, i.e. third spray duration.
Optionally, in another embodiment of the present invention, a kind of embodiment of step S104, as shown in Figure 3, comprising:
S301, first in the second injection duration replacement injection signal is sprayed into duration.
During the specific implementation of the present embodiment, the first injection duration in injection signal is replaced with the second injection duration
It changes, guarantees that injection duration of the next natural gas engine in injection is correct injection duration.
S302, the difference for calculating the second injection duration with the first injection duration, obtain third injection duration.
Wherein, a length of natural gas engine carries out the duration sprayed at this when second sprays, i.e.,
Natural gas engine carries out the theoretical value of injection duration in this injection；And when the first injection on a length of natural gas engine
The duration sprayed in a period.
Specifically, the difference of the second injection duration with the first injection duration is obtained by calculation, when obtained third is sprayed
A length of, natural gas engine needs to carry out within this period the injection duration of postinjection.
S303, according to second injection duration at the end of natural gas engine eject position, the minimum interval of injection and
Injection prepares the duration range that duration calculation goes out third injection duration.
Wherein, the duration range of third injection duration is natural gas engine when carrying out postinjection when the injection of permission
Long range.
It, can be according to the natural gas engine at the end of the second injection duration during the specific implementation of the embodiment of the present invention
The eject position of machine, the minimum interval of injection and injection prepare the duration range that duration calculation goes out third injection duration, calculate
The duration range of third injection duration.
S304, judge third injection duration whether within the scope of the duration of third injection duration.
Specifically, if illustrating that third is sprayed when judging that third injection duration is within the scope of the duration of third injection duration
Duration within the scope of the injection duration of permission, thens follow the steps S305 when carrying out postinjection in natural gas engine；If third
Spray duration not third injection duration duration within the scope of when, then natural gas engine in this injection cycle, without
Postinjection.
S305, control natural gas engine are sprayed in third injection duration.
As it can be seen from the above scheme passing through acquisition in a kind of control method of natural gas engine injection provided by the present application
Injection signal；It wherein, include: nozzle parameter and the first injection duration in the injection signal；It is calculated according to the nozzle parameter
Obtain the second injection duration；Judge whether the second injection duration and the first injection duration are consistent；If judging described
Second injection duration is greater than the first injection duration, and the second injection duration is replaced to described the in the injection signal
One injection duration, and control the natural gas engine and sprayed in third injection duration；Wherein, when the third is sprayed
The difference of a length of second injection duration and the first injection duration.If by judging that it is described that the second injection duration is greater than
The second injection duration is updated to the injection signal, and controls the natural gas engine the by the first injection duration
It is sprayed in three injection durations, allows the amount of injection more to match current working, improve the followability of excess air coefficient.
The embodiment of the present invention provides a kind of control device of natural gas engine injection, as shown in Figure 4, comprising:
Acquiring unit 401, for obtaining injection signal.
It wherein, include: nozzle parameter and the first injection duration in injection signal.
Optionally, in another embodiment of the invention, a kind of embodiment of acquiring unit 401, comprising:
Subelement is obtained, for repeatedly obtaining injection signal in a working cycles of natural gas engine.
Wherein, the first preset interval is divided between the adjacent injection signal of acquisition twice.
Specifically, a working cycles of natural gas engine are 720 °, it is more during the specific implementation of the present embodiment
The secondary angle interval for obtaining injection signal is identical, for 180 ° but can be not limited to injection signal of every 180 ° of acquisitions.
First computing unit 402, for the second injection duration to be calculated according to nozzle parameter.
First judging unit 403, for judging whether the second injection duration and the first injection duration are consistent.
Control unit 404, if judging for the first judging unit 403, the second injection duration is greater than the first injection duration,
By the first injection duration in the second injection duration replacement injection signal, and natural gas engine is controlled in third injection duration
It is sprayed；Wherein, the difference of a length of second injection duration and the first injection duration when third is sprayed.
The specific work process of unit disclosed in the above embodiment of the present invention, reference can be made to corresponding embodiment of the method content,
As shown in Figure 1, details are not described herein again.
Optionally, in another embodiment of the invention, the control device of natural gas engine injection, further includes:
Second replacement unit, if judging that the second injection duration is less than or equal to the first spray for the first judging unit 403
Duration is penetrated, by the first injection duration in the second injection duration replacement injection signal.
Optionally, in another embodiment of the invention, a kind of embodiment of the second replacement unit, as shown in figure 5, also
Include:
Third judging unit 501, for judging whether the injection valve of natural gas engine is being opened.
Specifically, being utilized if the first judging unit 403 judges that the second injection duration is less than or equal to the first injection duration
Judging unit 501 judges whether the injection valve of natural gas engine is opened.
Closing unit 502 then closes injection valve if judging that injection valve is being opened for third judging unit 501.
During the specific implementation of the present embodiment, no matter whether judging unit 501 judges that injection valve is being opened, all
The second above-mentioned replacement unit is utilized, by the first injection duration in the second injection duration replacement injection signal.
The specific work process of unit disclosed in the above embodiment of the present invention, reference can be made to corresponding embodiment of the method content,
As shown in Fig. 2, details are not described herein again.
Optionally, in another embodiment of the invention, a kind of embodiment of control unit 404, as shown in fig. 6, packet
It includes:
First replacement unit 601, for first in the second injection duration replacement injection signal to be sprayed duration.
Second computing unit 602 obtains third spray for calculating the difference of the second injection duration with the first injection duration
Penetrate duration.
Third computing unit 603, for the eject position according to the natural gas engine at the end of the second injection duration, injection
Minimum interval and injection prepare duration calculation go out third injection duration duration range.
Second judgment unit 604, for judging third injection duration whether within the scope of the duration of third injection duration.
Subelement 605 is controlled, if judging for second judgment unit 604, third sprays duration and sprays duration in third
Duration within the scope of, control natural gas engine third injection duration in sprayed.
The specific work process of unit disclosed in the above embodiment of the present invention, reference can be made to corresponding embodiment of the method content,
As shown in figure 3, details are not described herein again.
As it can be seen from the above scheme passing through acquisition in a kind of control injection apparatus of natural gas engine provided by the present application
Unit 401 obtains injection signal；It wherein, include: nozzle parameter and the first injection duration in the injection signal；Pass through the first meter
It calculates unit 402 and second injection duration is calculated according to the nozzle parameter；Described second is judged by the first judging unit 403
It sprays duration and whether the first injection duration is consistent；If third judging unit 403 is judged, described second grows up when spraying
In it is described first injection duration, by control unit 404 by it is described second injection duration replace in the injection signal described in
First injection duration, and control the natural gas engine and sprayed in third injection duration；Wherein, the third injection
The difference of second injection duration described in Shi Changwei and the first injection duration.If by judging that the second injection duration is greater than institute
The first injection duration is stated, the second injection duration is updated to the injection signal, and control the natural gas engine and exist
It is sprayed in third injection duration, allows the amount of injection more to match current working, improve the followability of excess air coefficient.
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 (10)
1. a kind of control method of natural gas engine injection characterized by comprising
Obtain injection signal；It wherein, include: nozzle parameter and the first injection duration in the injection signal；
The second injection duration is calculated according to the nozzle parameter；
Judge whether the second injection duration and the first injection duration are consistent；
If judging, the second injection duration is greater than the first injection duration, and the second injection duration is replaced the spray
The first injection duration in signal is penetrated, and controls the natural gas engine and is sprayed in third injection duration；Its
In, the difference of the third a length of second injection duration and the first injection duration when spraying.
2. the method according to claim 1, wherein the acquisition injection signal, comprising:
In a working cycles of the natural gas engine, the injection signal is repeatedly obtained；Wherein, it is described it is adjacent twice
It obtains and is divided into the first preset interval between the injection signal.
3. the method according to claim 1, wherein described replace the injection letter for the second injection duration
The first injection duration in number, and control the natural gas engine and sprayed in third injection duration, comprising:
The second injection duration is replaced to the first injection duration in the injection signal；
The difference for calculating the second injection duration and the first injection duration obtains the third injection duration；
According to the eject position of the natural gas engine at the end of the second injection duration, the minimum interval of injection and injection
Prepare the duration range that duration calculation goes out the third injection duration；
Judge the third injection duration whether within the scope of the duration of third injection duration；
If judging, the third injection duration within the scope of the duration of third injection duration, controls the natural gas engine
Machine is sprayed in third injection duration.
4. the method according to claim 1, wherein further include:
If judging, the second injection duration is less than or equal to the first injection duration, by the second injection duration replacement
The first injection duration in the injection signal.
5. according to the method described in claim 4, it is characterized in that, described replace the injection letter for the second injection duration
Before the first injection duration in number, further includes:
Judge whether the injection valve of the natural gas engine is being opened；
If judging, the injection valve is being opened, and closes the injection valve.
6. a kind of control device of natural gas engine injection characterized by comprising
Acquiring unit, for obtaining injection signal；It wherein, include: nozzle parameter and the first injection duration in the injection signal；
First computing unit, for the second injection duration to be calculated according to the nozzle parameter；
First judging unit, for judging whether the second injection duration and the first injection duration are consistent；
Control unit, if judging for first judging unit, when the second injection duration is greater than the described first injection
It is long, the second injection duration is replaced into the first injection duration in the injection signal, and control the natural gas hair
Motivation is sprayed in third injection duration；Wherein, a length of second injection duration and the first spray when the third is sprayed
Penetrate the difference of duration.
7. device according to claim 6, which is characterized in that the acquiring unit, comprising:
Subelement is obtained, for repeatedly obtaining the injection signal in a working cycles of the natural gas engine；Its
In, adjacent obtain twice is divided into the first preset interval between the injection signal.
8. device according to claim 6, which is characterized in that described control unit, comprising:
First replacement unit, for the second injection duration to be replaced to the first injection duration in the injection signal；
Second computing unit obtains described for calculating the difference of the second injection duration and the first injection duration
Third sprays duration；
Third computing unit, for the eject position according to the natural gas engine at the end of the second injection duration, spray
The minimum interval and injection penetrated prepare the duration range that duration calculation goes out the third injection duration；
Second judgment unit, for judging the third injection duration whether within the scope of the duration of third injection duration；
Subelement is controlled, if judging for the second judgment unit, the third injection duration is when the third is sprayed
Within the scope of long duration, controls the natural gas engine and sprayed in third injection duration.
9. device according to claim 6, which is characterized in that further include:
Second replacement unit, if judging that the second injection duration is less than or equal to described for first judging unit
The second injection duration is replaced the first injection duration in the injection signal by one injection duration.
10. device according to claim 9, which is characterized in that further include:
Third judging unit, for judging whether the injection valve of the natural gas engine is being opened；
Closing unit then closes the injection if judging that the injection valve is being opened for the third judging unit
Valve.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102093A (en) * | 2019-12-13 | 2020-05-05 | 潍柴动力股份有限公司 | Method and system for improving injection quantity control precision of natural gas engine |
| CN113153554A (en) * | 2021-05-07 | 2021-07-23 | 潍柴动力股份有限公司 | Control method, device and system for natural gas injection during sudden load shedding of engine |
| CN113431693A (en) * | 2021-08-05 | 2021-09-24 | 潍柴动力股份有限公司 | Control method for transient working condition of engine, engine and engineering machinery |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0942162A1 (en) * | 1998-03-11 | 1999-09-15 | Renault-Automation | Method of controling injection in a gas engine, the gas being liquid or gaseous |
| CN101903629A (en) * | 2007-12-20 | 2010-12-01 | 卡明斯公司 | System and method for adjusting fuel injector on-times |
| CN102705110A (en) * | 2012-06-12 | 2012-10-03 | 北京朗第伦索汽车燃气系统有限公司 | Method and device for obtaining practical fuel gas injection time |
| CN103016168A (en) * | 2011-09-22 | 2013-04-03 | 北京易控凌博汽车电子技术有限公司 | Diesel engine/natural gas dual-fuel engine electric control system |
| US20130325301A1 (en) * | 2010-12-24 | 2013-12-05 | Delphi Technologies, Inc. | Method of controlling an internal combustion engine |
| CN107636284A (en) * | 2015-04-07 | 2018-01-26 | 西港能源有限公司 | The operation of gaseous-fuel injector |
| DE102018105707A1 (en) * | 2017-03-21 | 2018-09-27 | Honda Motor Co., Ltd. | Fuel injection control device |
-
2019
- 2019-06-29 CN CN201910581135.4A patent/CN110273773B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0942162A1 (en) * | 1998-03-11 | 1999-09-15 | Renault-Automation | Method of controling injection in a gas engine, the gas being liquid or gaseous |
| CN101903629A (en) * | 2007-12-20 | 2010-12-01 | 卡明斯公司 | System and method for adjusting fuel injector on-times |
| US20130325301A1 (en) * | 2010-12-24 | 2013-12-05 | Delphi Technologies, Inc. | Method of controlling an internal combustion engine |
| CN103016168A (en) * | 2011-09-22 | 2013-04-03 | 北京易控凌博汽车电子技术有限公司 | Diesel engine/natural gas dual-fuel engine electric control system |
| CN102705110A (en) * | 2012-06-12 | 2012-10-03 | 北京朗第伦索汽车燃气系统有限公司 | Method and device for obtaining practical fuel gas injection time |
| CN107636284A (en) * | 2015-04-07 | 2018-01-26 | 西港能源有限公司 | The operation of gaseous-fuel injector |
| DE102018105707A1 (en) * | 2017-03-21 | 2018-09-27 | Honda Motor Co., Ltd. | Fuel injection control device |
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| CN111102093A (en) * | 2019-12-13 | 2020-05-05 | 潍柴动力股份有限公司 | Method and system for improving injection quantity control precision of natural gas engine |
| CN113153554A (en) * | 2021-05-07 | 2021-07-23 | 潍柴动力股份有限公司 | Control method, device and system for natural gas injection during sudden load shedding of engine |
| CN113153554B (en) * | 2021-05-07 | 2023-01-20 | 潍柴动力股份有限公司 | Method, device and system for controlling natural gas injection during sudden load unloading of engine |
| CN113431693A (en) * | 2021-08-05 | 2021-09-24 | 潍柴动力股份有限公司 | Control method for transient working condition of engine, engine and engineering machinery |
| CN113431693B (en) * | 2021-08-05 | 2023-01-20 | 潍柴动力股份有限公司 | Control method for transient working condition of engine, engine and engineering machinery |
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