CN107237700A - Method for adjusting fuel dosage - Google Patents
Method for adjusting fuel dosage Download PDFInfo
- Publication number
- CN107237700A CN107237700A CN201710193598.4A CN201710193598A CN107237700A CN 107237700 A CN107237700 A CN 107237700A CN 201710193598 A CN201710193598 A CN 201710193598A CN 107237700 A CN107237700 A CN 107237700A
- Authority
- CN
- China
- Prior art keywords
- fuel
- fuel injector
- internal combustion
- combustion engine
- fuel quantity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
- F02D41/2464—Characteristics of actuators
- F02D41/2467—Characteristics of actuators for injectors
-
- 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
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D2041/3088—Controlling fuel injection for air assisted injectors
Landscapes
- 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)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention relates to a kind of method for being used to adjust fuel dosage in internal combustion engine, in the internal combustion engine, introduced a fuel into by least two different fuel injectors at least one cylinder, wherein, for having to be introduced at least one described cylinder（102）In total fuel quantity（MG）Adjustment carried out by means of the adjustment to single fuel quantity, total fuel quantity is assigned to the corresponding single fuel quantity of described at least two different fuel injectors（MS1、MS2、MD）On, and wherein, the adjustment of each single fuel quantity is carried out only by means of corresponding fuel injector in the following cases：In said case, it is considered to which being used for of corresponding fuel injector introduces corresponding single fuel quantity（MS1、MS2、MD）Corresponding dosage duration and corresponding fuel injector introducing total fuel quantity（MG）When the corresponding dosage duration ratio.
Description
Technical field
It is used to adjust the method for fuel dosage in internal combustion engine and for implementing methods described the present invention relates to a kind of
Computing unit and computer program.
Background technology
For Otto motor, commonly known two kinds are used for the method for fuel injection, that is, intake manifold injection and straight
Connect injection.But, intake manifold injection is substituted by directly injection more and more, because especially in the fortune with high load capacity demand
In row region, directly injection can facilitate higher power income in the case of lower fuel consumption and can facilitate more
Targetedly injection strategy.
In addition, there is also with intake manifold injection with directly spray combine, the Otto motor of so-called dual system.This mirror
In increasingly stricter emission request, emission limit is just favourable in other words, because compared with directly spraying, air inlet pipe spray
Penetrate for example in medium load area and with lower load dynamic（Lastdynamik）Operation area in cause
More preferable discharge value, and it is in other words favourable in load area to inject directly on high rotating speed.Equally, by directly spraying reality
Showed the reduction of pinking tendency, when pinking tendency or even pinking be identified in itself in specific operating point or
When saying very possible generation, then the reduction of pinking tendency can targetedly be used to protect internal combustion engine.Two kinds of spray regimes
Coupling thus the corresponding advantage of each spraying system is combined in different operation areas, and realize to horse
Up to the new optimization of characteristic.
Another internal combustion engine is following such internal combustion engines, in the internal combustion engine, is provided with for a kind of spray regime
Multiple fuel injectors, the fuel injector is used to introduce a fuel into cylinder.For example, can be with intake manifold injection
Internal combustion engine in set two be used for injection of the same race（Namely intake manifold injection）Fuel injector, have to be introduced into cylinder
Fuel quantity be assigned on described two fuel injectors.In this case, what is referred to is so-called multipoint injection system
（Mehreinspritzsystem）.
The content of the invention
Proposed according to the present invention is used for the side of the adjustment fuel dosage in internal combustion engine with the feature according to the present invention
Method and computing unit and computer program for implementing methods described.Favourable design be preferred embodiment and with
The theme of lower explanation.
The method according to the invention is used to especially adjust fuel dosage in internal combustion engine in the range of mixture adaptation,
In the internal combustion engine, introduced a fuel into by least two different fuel injectors at least one cylinder.Here, being directed to
Have carried out to be introduced into the adjustment of total fuel quantity at least one described cylinder by means of the adjustment to single fuel quantity,
Exactly for each fuel path, each single cylinder is carried out in other words, and total fuel quantity is assigned to described at least two
On the corresponding single fuel quantity of different fuel injectors, wherein, to the adjustment of each single fuel quantity in the following cases
Carried out only by means of corresponding fuel injector：In said case, it is considered to which being used for of corresponding fuel injector draws
Enter corresponding dosage duration of corresponding single fuel quantity with corresponding fuel injector in introducing total fuel quantity
The corresponding dosage duration ratio.
When regulation is used for Fuel-air-ratio of internal combustion engine it is possible that by pre-control and adjusting superimposed.It is described
Pre-control is mainly used in：The system deviation come by means of fuel quantity adjustment in correction fuel-air-ratio, and the regulation is then
Amendment（ausregeln）Actual interference.But --- especially because used component aging or abrasion --- may go out
Existing situations below：Due to the service condition of change, the pre-control remains deviation and therefore the pre-control in itself should
Corrected and " be adapted to " in other words again.
Enable in particular to be adapted to the whole deviation in other words of mistuning to compensate the pre-control using so-called mixture（By institute
The possible aging effect referred to）, the whole deviation in other words of the mistuning occurs in the range of the longer duration of operation.When
Preferable λ value is measured after being combusted（Namely 1 λ value）Deviation and thus --- exclude air path error it
Afterwards --- the fuel quantity precomputed deviates preferable for example due to dynamic effects or enduringly in the operating point of stable state
During situation, the mixture adaptation for example corrects the deviation of the Fuel-air-ratio.Thus to the adjustment of fuel path（
It is exactly fuel quantity adjustment）It is necessary, enduringly to reach 1 λ value again in operation.Preferably, the dosage is held
The continuous time includes：Duration, namely following duration are manipulated, manipulation signal is applied to described within the duration
On injector；And/or duration, namely following duration are opened, the injector is actual within the duration
Open.
It is that each cylinder sets a fuel injector respectively to introduce fuel in traditional internal combustion engine, or
Also one fuel injector is only for example set for all cylinders on the whole, for traditional internal combustion engine, mixture
Adaptation for example can be particularly simple linearly associated with the opening duration of corresponding fuel injector, so as to
To the adjustment to the corresponding pre- control value for the fuel dosage.
In internal combustion engine, by two or more different fuel injector introduce a fuel into cylinder combustion chamber or
Say in combustion chamber, the fuel injector exports total fuel quantity for relevant cylinder jointly, for the internal combustion engine,
In the presence of the different feasible programs being assigned to total fuel quantity on each fuel injector.According to operation area, different points
With ratio（Aufteilung）Can be it is favourable, such as it is minimum for fuel consumption and/or hazardous emission are reduced to
Limit.For now for a kind of allocation proportion, a fuel injector in fuel injector at limit area, also
It is when for example being run in the region that its minimum can adjust the opening duration set, for fuel dosage, and longer
The opening duration in the case of compare, significantly bigger unreliability occurs at limit area.The reason for this
Such as it is to be difficult to adjust the short opening duration set.When now adjustment fuel dosage in the range of, to the phase of fuel dosage
The adjustment for the pre- control value answered and the allocation proportion（The single fuel quantity of namely corresponding fuel injector is described total
Shared corresponding share in fuel quantity）When linearly realizing, then just fuel injector manipulation limit area
It is middle possible unreliability occur.Compared with the case of in the fuel injector for directly spraying, this effect for
It is even also bigger for the fuel injector of intake manifold injection.Reason for this is that, with phase in the case of direct injection
Than for intake manifold injection usually using less accurate injector.For example using piezo jet for directly spraying
Device, but without using piezoelectric injector for intake manifold injection because historically there injector due to preceding
Put（Vorlagerungen）And longer time and therefore fineness should be opened（Feinheit）Being with faster opening need not
It is wanting or become unnecessary.Another reason is, smaller electricity is used for the injector of intake manifold injection
Unreliability is opened and therefore yet more tempestuously occurred in the case of underload to stream.
The present invention starts herein now, and method is：Adjusting the fuel dosage and adjusting therewith for described single
The pre- control value of fuel quantity is for reaching during total fuel quantity, it is considered to which the mentioned dosage of relevant fuel injector continues
The ratio of time.In this way it is possible that in the operation of corresponding fuel injector, being held with longer dosage
The continuous time is compared, and the limit area is especially considered in a different manner.For example, for a kind of allocation proportion --- for institute
State for allocation proportion, fuel injector is run at its minimum possible limit area for opening the duration --- for institute
Very small adjustment can only be carried out for fuel injector by stating, and then be carried out for other fuel injector more violent
Adjustment so that as desired on the whole adjust total fuel quantity.Thus unreliability is significantly reduced.Herein
Advantageously can just it be obtained before internal combustion engine is normally used first, for example in the range of testing stand measurement
The corresponding dosage duration and it is correspondingly preserved on the controller, so as to be able to access that during the adjustment is implemented
The controller.
Preferably, the adjustment to each single fuel quantity is realized by means of the adjustment to adaptation value, the adaptation value
Obtained in the following cases only by means of corresponding fuel injector：In said case, it is considered to corresponding combustion
Corresponding dosage duration of the material ejector when introducing total fuel quantity.In this way it is possible that very simple
Single ground and the ratio for rapidly considering the corresponding dosage duration.
Advantageously, the adaptation value is in the following cases only by means of corresponding fuel injector with weighted factor
Form adjust：In said case, it is considered to the phase for being used to introduce corresponding single fuel quantity of corresponding fuel injector
Corresponding dosage duration of the dosage duration answered with corresponding fuel injector when introducing total fuel quantity
Ratio.It is existing when adjusting the corresponding single fuel quantity corresponding dosage duration in other words by this weighting
Consideration that is simple and being adapted with corresponding unreliability can realized.
Advantageously, the acquisition of the adaptation value is in one or more predetermined operation area of the internal combustion engine
It is middle to carry out.This operation area for example determined by means of the rotating speed and/or workload demand of the internal combustion engine can for example be closed
Selected in stable operation, in the stable operation, can simply obtain deviation.
Preferably, the acquisition of the adaptation value is considering the situation of the λ value of the waste gas of the internal combustion engine and especially λ regulations
It is lower to carry out.Also advantageously corresponding operation area, for example following this operation areas can be selected, in this operation herein
1 λ value is provided with region.In this way it is possible that particularly simple obtaining deviation and correspondingly adjusting
The dosage duration.
Advantageously, following internal combustion engines are used as internal combustion engine, in the internal combustion engine, described at least two different combustions
Material ejector includes：At least one fuel injector and at least one fuel for being used to directly spray for being used for intake manifold injection spray
Emitter, and/or at least two fuel injectors for intake manifold injection, and/or at least two fuel for directly spraying
Injector.As already mentioned, for particularly with the fuel injector for intake manifold injection, transported in limit area
In the presence of big unreliability during row.Nevertheless, even for for the fuel injector for directly spraying in limit area
Also unreliability occurs during middle operation.Thus, the method proposed all has for following any kind of internal combustion engines
Profit, introduce fuel by means of two or more fuel injector for cylinder in the internal combustion engine.
Especially it is configured for according to the controller of the computing unit of the present invention, such as motor vehicle in program technic：It is real
Apply the method according to the invention.
Realize that methods described is also advantageous in the form of a computer program, because this causes especially low cost, especially
Its when perform controller be additionally operable to other tasks and therefore natively in the presence of.Conjunction for providing the computer program
Suitable data medium especially magnetic, optical and electric memory picture for example hard disk, flash memory, EEPROM, DVD and its
Its memory.Pass through computer network（Internet, Intranet etc.）It is also feasible to download.
Brief description of the drawings
The further advantage and design of the present invention is drawn from specification and drawings.
The present invention is schematically depicted in the drawings by means of embodiment and is described hereinafter with reference to accompanying drawing.It is attached
In figure：
Fig. 1 a and 1b schematically show the schematic diagram of two internal combustion engines, and the internal combustion engine can use the side according to the present invention
Method；
Fig. 2 schematically illustrates a cylinder of internal combustion engine, and the cylinder can use the method according to the invention；
Fig. 3 with it is a kind of preferred embodiment schematically show implement the method according to the invention when total fuel quantity can
The allocation proportion of energy；And
Fig. 4 is preferred embodiment schematically shown when implementing the method according to the invention to being held as dosage using one kind
The adjustment of the opening duration of continuous time.
Embodiment
An internal combustion engine 100 is shown schematically and simplifiedly in fig 1 a, the internal combustion engine can use basis
The method of the present invention.The internal combustion engine 100 exemplarily has four cylinders 102 and air inlet pipe 106, and the air inlet pipe is connected
To at each cylinder of the cylinder 102.
The air inlet pipe 106 has a fuel injector 107 and a fuel injector for each cylinder 102 herein
113, the two fuel injectors are in being nearby arranged in the corresponding section of the air inlet pipe before the cylinder.For letter
For the sake of bright, corresponding only one fuel injector is provided with reference in all fuel injectors 107,113.
The two all serve intake manifold injection for such as gasoline with the fuel injector 107 and 113, and only use
In this spray regime.The fuel injector 107 and 113 supplies gasoline by low pressure line 151 by low-lift pump 150.For letter
For the sake of bright, the low pressure line 151 towards the corresponding fuel injector in the fuel injector 107 and 113 is illustrate only,
It is clear that each fuel injector in the fuel injector 107 and 113 is connected at low pressure line.
In addition, each cylinder 102 has the fuel injector 111 for being used for directly spraying.For simplicity, the fuel
Only one fuel injector in injector 111 is provided with reference.The fuel injector 111 is only used for the direct spray of gasoline
Penetrate, and be connected to using pressure duct 162 at high pressure accumulator 161, so-called rail or common rail.For simplicity, only
The pressure duct 162 of a fuel injector towards in the fuel injector 111 is shown, it is clear that described
Each fuel injector in fuel injector 111 is connected at pressure duct.
The high pressure accumulator 161 supplies gasoline further through high-pressure pump 160.The high-pressure pump 160 is herein generally by described
Internal combustion engine drives.The fuel injector 111, the pressure duct 162, the high pressure accumulator 16 and the high-pressure pump
160 be the part of the high-pressure system 165 of the internal combustion engine 100 herein.The not only low-lift pump 150 but also the high-pressure pump 160
It can such as be connected at the storage tank common, not shown here for gasoline.
It is currently shown go out example in, by three different fuel injectors, namely intake manifold injection is corresponding
Fuel injector 107 and 113 and introduce a fuel into each cylinder for the corresponding fuel injector 111 directly sprayed
In 102.But also it is contemplated that and in practice also commonly, such as correspondingly only by two fuel of intake manifold injection
Injector is introduced a fuel into each cylinder.It is further possible to contemplate and in practice equally commonly, such as phase
Ground is answered to be introduced a fuel into often by a fuel injector of intake manifold injection and for the fuel injector directly sprayed
In individual cylinder.
Another internal combustion engine 200 is shown schematically and simplifiedly in Figure 1b, the internal combustion engine can use root
According to the method for the present invention.The internal combustion engine 200 exemplarily has four cylinders 102 and air inlet pipe 206, and the air inlet pipe is connected
It is connected at each cylinder in the cylinder 102.
The air inlet pipe 206 has two fuel injections common, for such as gasoline for all cylinders 102 herein
Device 207 and 213, the fuel injector is for example arranged in after air throttle not shown here nearby.The fuel spray
Thus emitter 207 and 213 serves intake manifold injection.In addition, there is each cylinder 102 one to be used for the direct of such as gasoline
The fuel injector 111 of injection.
On fuel feed system, the internal combustion engine 200 is equivalent to the internal combustion engine 100.Thus, with reference to there
Explanation.Herein also it is contemplated that and commonly, as explained also referring to Fig. 1 a, be only provided with for air inlet pipe
The fuel injector of injection；Or correspondingly sprayed by the fuel injector and a fuel directly spraying of intake manifold injection
Emitter is introduced a fuel into each cylinder, and this is in the current situation it is meant that be only provided with two fuel of intake manifold injection
A fuel injector in injector.
Difference between the internal combustion engine 100 and 200 is the mode of intake manifold injection.For example, shown in Fig. 1 a
Intake manifold injection allows to carry out fuel dosage personalizedly for each cylinder, and such as this for example can be used in more senior（hö
herwertig）Internal combustion engine like that, and intake manifold injection shown in Fig. 1 b in terms of its construction and in terms of its manipulation more
Simply.It is self-evident, can also be combined according to Fig. 1 a intake manifold injection with according to Fig. 1 b intake manifold injection and otherwise also
Can, that is, for example, each cylinder be provided with for one of intake manifold injection single fuel injector and be extraly
All cylinders are provided with a common fuel injector for intake manifold injection.
In fig. 2 schematically and simplifiedly but than illustrating in greater detail the one of the internal combustion engine 100 in Fig. 1 a
Individual cylinder 102.The cylinder 102 has combustion chamber 103, and the combustion chamber is increased or reduced by the motion of piston 104.
The position of the piston herein for example can be with reference to so-called top dead centre（OT）To provide, in the top dead centre, the piston
Have arrived at it（Referring to the drawings）Peak.
The cylinder 102 has inlet valve 105, so as to which air or Fuel-air-mixture are introduced into the burning
In room 103.Air is conveyed by air inlet pipe 106, and the air inlet pipe is used as the part of air delivery section, the fuel injector
107 and 113 at the air inlet pipe.The air sucked is introduced into the combustion of the cylinder 102 by the inlet valve 105
Burn in room 103.Air throttle 112 is used to adjust the air mass flow for being set to and needing in the cylinder 102 in gas handling system.
The internal combustion engine can be run during intake manifold injection.Existed by means of the fuel injector 107 and 113
During this intake manifold injection will such as gasoline as fuel injection into the air inlet pipe 106, so as to be formed there
Air-fuel-mixture, the air-fuel-mixture is introduced into the combustion of the cylinder 102 by the inlet valve 105
Burn in room 103.The fuel quantity of institute's dosage can be assigned on two fuel injectors 107 and 113 according to demand herein.
The internal combustion engine can also be run during direct injection.For this purpose, the fuel injector 111 is pacified
Put at the cylinder 102, so as to which such as gasoline is directly injected in the combustion chamber 103 as fuel.For this straight
For connecing injection, for air-fuel-mixture required for burning directly in the combustion chamber 103 of the cylinder 102 shape
Into.
In addition, the cylinder 102 is provided with igniter 110, to be produced to start to burn in the combustion chamber 103
Raw pilot spark.
After being combusted, burning waste gas is discharged by blast pipe 108 from the cylinder 102.The discharge is dependent on same
Sample is arranged in the opening of the exhaust valve 109 at the cylinder 102 to realize.Inlet valve and exhaust valve 105,109 are opened and closed,
The four strokes operation of the internal combustion engine 100 is performed so as in known manner.
The internal combustion engine 100 can directly to spray, intake manifold injection or run with mixed running.This, which is depended on, works as
Preceding operating point realizes the selection of the corresponding optimal method of operation for running the internal combustion engine 100.Therefore, when described interior
Combustion engine 100 in the case of the slow-speed of revolution and underload when being run, and the internal combustion engine can be run with intake manifold injection operation, and
And when the internal combustion engine is with high rotating speed and heavy-duty service, the internal combustion engine can be run with direct injection operation.
But, in the range of big operation area meaningfully, the internal combustion engine 100 is run with mixed running,
For the mixed running, there is fuel quantity to be delivered to the combustion chamber 103 to pass through intake manifold injection and straight by share
Injection is connect to convey, wherein, the fuel quantity conveyed by means of intake manifold injection can pass through intake manifold injection by share again
Two fuel injectors are guided.
In addition, there is provided the computing unit of controller 115 is configured to, for controlling the internal combustion engine 100.The control
Device 115 can make the internal combustion engine 100 directly to spray, intake manifold injection or mixed running are run.Furthermore it is possible to pass through
The controller 115 reads the lambda probe 120 being arranged in the blast pipe 108.
The functional mode that the reference picture 2 of the internal combustion engine 100 is explained in detail can also cover the internal combustion engine used according to Fig. 1 b
On 200, following differences are only had according to Fig. 1 b internal combustion engine：For institute's combuster, cylinder is provided with for air inlet pipe spray in other words
The two common fuel injectors penetrated.
Preferred embodiment schematically shown and always fired when implementing the method according to the invention with one kind in figure 3
The possible allocation proportion of doses.
For for example previously given specific fortune can be carried out by means of rotating speed and load area or rotating speed and load point
For row region or operating point, total fuel quantity M can be setG, total fuel quantity should be introduced in a cylinder or
In each cylinder of cylinder described in person.
This total fuel quantity MGIt can then be assigned on each fuel injector, be sprayed by means of each described fuel again
Emitter is introduced a fuel into one or more relevant cylinder.In current example, with single fuel quantity MS1And MS2Come
The distribution on two fuel injectors of intake manifold injection is realized, and with single fuel quantity MDTo realize what is directly sprayed
Distribution on one fuel injector.
It is self-evident, for only two fuel injectors altogether, that is, two for example for intake manifold injection
For fuel injector, or a fuel injector for intake manifold injection and a fuel injector directly spraying come
Say, correspondingly there will be the distribution on only two fuel injectors.
Here, the single fuel quantity MS1、MS2And MDPass through the suitable opening duration of affiliated fuel injector、WithTo realize.It is self-evident, it is necessary to the corresponding manipulation duration of the fuel injector.
Now also can be in mentioned operation area or operating point without to corresponding fuel injector
On distribution, but total fuel quantity MGAlso can be by only one fuel injector be come dosage.Here, for corresponding selected
Fuel injector, correspondingly need the opening duration、And/orIn one open continue when
Between.
These opening duration can obtain and be stored in the range of testing stand measurement in an advantageous manner and hold
In memory on capable computing unit.
By the opening duration corresponding with corresponding single fuel quantity and in use only one fuel injector
In the case of belonging to the opening duration, now can be for example with GS1=/、GS2=/And GD=
/Form obtain weighted factor.
Preferred embodiment schematically shown and fought each other when implementing the method according to the invention with one kind in Fig. 4
Open the adjustment of duration.
In specific operation area or operating point, preferably in the operating point of stable state --- in the work of the stable state
In point, λ value should be maintained on 1 --- mixture adaptation or the adjustment to fuel dosage can be carried out now.As started
As being already mentioned above, although the fuel dosage can be adjusted in the range of regulation, but adjust pre-control every now and then
Value is meaningful and is favourable.
Total fuel quantity M individually exported by a fuel injector in the fuel injector, previously givenGNow
Successively detected for each fuel injector in the fuel injector, the detection is for example by means of λ value in other words in λ
Carried out in the range of regulation.Thus it is for example possible to determine：Reality is by means of one in the fuel injector of intake manifold injection
Total fuel quantity M' of fuel injector institute dosageG,S1Above or below original desired total fuel quantity MG.This can for example be borrowed
Help the deviation of the λ value λ and rated value to determine.Other fuel that corresponding situation can also be applied to intake manifold injection spray
Total fuel quantity M' of actual institute's dosage of the fuel injector of emitter or direct injectionG,S2And M'G,D。
The reason for causing this deviation for instance it can be possible that the aging or pollution of the fuel injector so that for example in phase
With the opening duration in the case of, the less fuel of dosage compared with set situation.
By means of current λ value λ and the rated value（Typically λ=1）Deviation and be present in motor control part
, can be with the nominal fuel amount on the understanding of nominal fuel amount（From motor control part）With natural fuel amount（From λ
Value）Poor form it is poor to calculate fuel quantity.
In the opening duration of the fuel injector belonging to consideration、WithAnd corresponding fuel quantity
Difference --- Δ M is illustrate only herein in corresponding fuel quantity differenceS1--- in the case of, adaptation value can be obtained now
AS1、AS2Or AD, in the case where considering the adaptation value, the opening duration can be adjusted、With, to be reached total fuel quantity M again by means of each fuel injector in the fuel injectorG.For example,
It may need slightly to improve these opening duration for this（For example to extend as the adaptation value A of the factor as amplitude）.
When described each of adjustment opens duration, for by total fuel quantity MGIt is assigned to the single fuel quantity
MS1、MS2And MDFor upper the fact that, as shown by its left side in figure 3, the adaptation value can be also used now
AS1、AS2And/or AD, but now with weighted factor GS1、GS2And/or GDTo realize weighting.
In this way, it can be considered that the opening duration of each fuel injector and combustion especially in limit area
The correlation of doses it is possible non-linear.
Claims (11)
1. in internal combustion engine（100、200）The method of middle adjustment fuel dosage, in the internal combustion engine, by least two not
Same fuel injector（107、111、113、207、213）Introduce a fuel at least one cylinder（102）In,
Wherein, for having to be introduced at least one described cylinder（102）In total fuel quantity（MG）Adjustment by means of to single
Fuel quantity（MS1、MS2、MD）Adjustment carry out, total fuel quantity is assigned to described at least two different fuel injectors
（107、111、113、207、213）Corresponding single fuel quantity on, and
Wherein, to the adjustment of each single fuel quantity in the following cases only by means of corresponding fuel injector（107、111、
113、207、213）Come carry out：In said case, it is considered to corresponding fuel injector（107、111、113、207、213）Use
In the corresponding single fuel quantity of introducing（MS1、MS2、MD）The corresponding dosage duration and corresponding fuel injector（107、
111、113、207、213）Introducing total fuel quantity（MG）When the corresponding dosage duration ratio.
2. the method as described in claim 1, wherein, to each single fuel quantity（MS1、MS2、MD）Adjustment by means of right
Adaptation value（AS1、AS2、AD）Adjustment realize that the adaptation value is in the following cases only by means of corresponding fuel injection
Device（107、111、113、207、213）To obtain：In said case, it is considered to corresponding fuel injector（107、111、
113、207、213）Introducing total fuel quantity（MG）When the corresponding dosage duration.
3. the method as described in claim 2, wherein, the adaptation value（AS1、AS2、AD）In the following cases only by means of described
Corresponding fuel injector（107、111、113、207、213）With weighted factor（GS1、GS2、GD）Form adjust：Described
In the case of, it is considered to corresponding fuel injector（107、111、113、207、213）Be used for introduce corresponding single fuel quantity
（MS1、MS2、MD）The corresponding dosage duration and corresponding fuel injector（107、111、113、207、213）Introducing institute
State total fuel quantity（MG）When the corresponding dosage duration ratio.
4. the method as any one of preceding claims, wherein, the adaptation value（AS1、AS2、AD）Acquisition described
Internal combustion engine（100、200）One or more predetermined operation area in carry out.
5. the method as described in claim 4, wherein, the adaptation value（AS1、AS2、AD）Acquisition considering the internal combustion engine
（100、200）Waste gas λ value（λ）Especially λ is carried out in the case of adjusting.
6. the method as any one of preceding claims, wherein, the adjustment with additive or multiplies according to operation area
The mode of method is carried out.
7. the method as any one of preceding claims, wherein, it is used as internal combustion engine（100、200）Use following internal combustion engines
（100、200）, in the internal combustion engine（100、200）In, described at least two different fuel injectors include：
At least one is used for the fuel injector of intake manifold injection（107、113、207、213）It is used to directly spray with least one
Fuel injector（111）, and/or
At least two are used for the fuel injector of intake manifold injection（107、113、207、213）And/or
At least two fuel injectors for directly spraying.
8. the method as any one of preceding claims, wherein, the dosage duration includes opening the duration（、、）And/or the manipulation duration.
9. computing unit（115）, the computing unit is configured for：Implement the side as any one of preceding claims
Method.
10. computer program, when the computer program is in computing unit（115）During upper execution, the computer program promotes
The computing unit（115）Implement the method as any one of claim 1 to 8.
11. machine readable storage medium, the machine readable storage medium have be stored thereon by claim 10
Described computer program.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016205107.5A DE102016205107A1 (en) | 2016-03-29 | 2016-03-29 | Method for adjusting a fuel metering |
| DE102016205107.5 | 2016-03-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107237700A true CN107237700A (en) | 2017-10-10 |
| CN107237700B CN107237700B (en) | 2022-04-26 |
Family
ID=59885648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710193598.4A Active CN107237700B (en) | 2016-03-29 | 2017-03-28 | Method for adjusting fuel metering |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107237700B (en) |
| DE (1) | DE102016205107A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058973A (en) * | 2018-10-17 | 2020-04-24 | 罗伯特·博世有限公司 | Method for determining water in fuel |
| CN112412634A (en) * | 2019-08-23 | 2021-02-26 | 罗伯特·博世有限公司 | Method for operating an injection device of an internal combustion engine, injection device and internal combustion engine |
| CN115667690A (en) * | 2020-05-25 | 2023-01-31 | 标致雪铁龙汽车股份有限公司 | Vehicle with a gasoline internal combustion engine and with a check for the type of fuel used, and associated checking method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006132400A (en) * | 2004-11-04 | 2006-05-25 | Toyota Motor Corp | Fuel injection control method of internal combustion engine |
| US20090299611A1 (en) * | 2008-05-30 | 2009-12-03 | Denso Corporation | Fuel injection controller for internal combustion engine |
| JP2010242647A (en) * | 2009-04-07 | 2010-10-28 | Toyota Motor Corp | Fuel injection control device for internal combustion engine |
| CN102162402A (en) * | 2010-02-17 | 2011-08-24 | 通用汽车环球科技运作有限责任公司 | Method for metering a fuel mass using a controllable fuel injector |
-
2016
- 2016-03-29 DE DE102016205107.5A patent/DE102016205107A1/en active Pending
-
2017
- 2017-03-28 CN CN201710193598.4A patent/CN107237700B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006132400A (en) * | 2004-11-04 | 2006-05-25 | Toyota Motor Corp | Fuel injection control method of internal combustion engine |
| US20090299611A1 (en) * | 2008-05-30 | 2009-12-03 | Denso Corporation | Fuel injection controller for internal combustion engine |
| JP2010242647A (en) * | 2009-04-07 | 2010-10-28 | Toyota Motor Corp | Fuel injection control device for internal combustion engine |
| CN102162402A (en) * | 2010-02-17 | 2011-08-24 | 通用汽车环球科技运作有限责任公司 | Method for metering a fuel mass using a controllable fuel injector |
Non-Patent Citations (1)
| Title |
|---|
| 樊继东: "《汽车电子控制技术》", 28 February 2015 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111058973A (en) * | 2018-10-17 | 2020-04-24 | 罗伯特·博世有限公司 | Method for determining water in fuel |
| CN112412634A (en) * | 2019-08-23 | 2021-02-26 | 罗伯特·博世有限公司 | Method for operating an injection device of an internal combustion engine, injection device and internal combustion engine |
| CN115667690A (en) * | 2020-05-25 | 2023-01-31 | 标致雪铁龙汽车股份有限公司 | Vehicle with a gasoline internal combustion engine and with a check for the type of fuel used, and associated checking method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102016205107A1 (en) | 2017-10-05 |
| CN107237700B (en) | 2022-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9822727B2 (en) | Method and systems for adjusting engine cylinder operation based on a knock sensor output | |
| CN102477909B (en) | The method judging fuel injector | |
| US10151257B2 (en) | Systems and methods to reduce torsional conditions in an internal combustion engine | |
| CN103946528B (en) | Method and apparatus for controlling internal combustion engine | |
| CN105556100A (en) | Operation of a quantity-controlled internal combustion engine having cylinder deactivation | |
| CN107237700A (en) | Method for adjusting fuel dosage | |
| US8281768B2 (en) | Method and apparatus for controlling fuel rail pressure using fuel pressure sensor error | |
| CN102734031B (en) | The HCCI fuel injector propagated for sane spontaneous combustion and flame | |
| CN104343559B (en) | Method and system for transient condition fuel control | |
| CN107816390A (en) | Automated calibration system and method for bi-fuel internal combustion engine | |
| US20160363074A1 (en) | Combustion system controller | |
| KR20060015466A (en) | Method for optimizing the operating mode and combustion mode of a diesel engine | |
| CN103097698B (en) | For controlling the system and method for multiple fuel system | |
| KR20160060575A (en) | Method for operating an engine and control device thereof | |
| US20160169134A1 (en) | Method for operation of an internal combustion engine | |
| CN110914527B (en) | Transient estimation and compensation techniques for dedicated EGR engine control parameters | |
| CN112240248B (en) | Apparatus and method for controlling purging of a vehicle | |
| US9518516B2 (en) | State-based diesel fueling for improved transient response in dual-fuel engine | |
| US20170342918A1 (en) | Hydrocarbon vapor control using purge pump and hydrocarbon sensor to decrease particulate matter | |
| US9835111B2 (en) | Method and device for operating an internal combustion engine | |
| CN106855019B (en) | Method for operating an engine | |
| JP4285224B2 (en) | Fuel injection control device for internal combustion engine | |
| CN107110036A (en) | Method for determining moment of torsion deposit | |
| US10533507B2 (en) | Systems and methods for controlling air-fuel ratio in dedicated EGR engine | |
| CN108291492A (en) | Method for running internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |