CN107781050A - Method for running the internal combustion engine with intake manifold injection - Google Patents
Method for running the internal combustion engine with intake manifold injection Download PDFInfo
- Publication number
- CN107781050A CN107781050A CN201710729753.XA CN201710729753A CN107781050A CN 107781050 A CN107781050 A CN 107781050A CN 201710729753 A CN201710729753 A CN 201710729753A CN 107781050 A CN107781050 A CN 107781050A
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- CN
- China
- Prior art keywords
- internal combustion
- combustion engine
- injection
- state
- value
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- 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.)
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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
- 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
- F02D41/345—Controlling injection timing
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/045—Detection of accelerating or decelerating state
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/047—Taking into account fuel evaporation or wall wetting
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/10—Introducing corrections for particular operating conditions for acceleration
- F02D41/107—Introducing corrections for particular operating conditions for acceleration and deceleration
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
- F02D41/182—Circuit arrangements for generating control signals by measuring intake air flow for the control of a fuel injection device
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1432—Controller structures or design the system including a filter, e.g. a low pass or high pass filter
-
- 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
-
- 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
- F02D2200/1012—Engine speed gradient
-
- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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)
Abstract
Describe a kind of method for being used to run the internal combustion engine with intake manifold injection.The dynamical state of the internal combustion engine is identified by load value.In the dynamical state of internal combustion engine, enter the fuel injection in air inlet pipe and start to offset into optimal region for dynamic state.
Description
Technical field
The present invention is in a kind of method for being used to run the internal combustion engine with intake manifold injection as starting point.
Background technology
It is injected into gasoline in the internal combustion engine of air inlet pipe, mixture is formed and carried out in air inlet pipe.Here, mixture shape
Into quality depend on many factors.These factors are optimized in research and development for steady state engine operation.Controller
Parameter setting（Bedatung）Carried out for steady state engine operation.Here, few combustion of this optimization in each operating point
Carried out in the meaning of material consumption and the discharge of few waste gas.In the operation of internal combustion engine, when only time for spraying and injection continue
Between be to change.Other values determine basically by the geometry of internal combustion engine.
According to selected time for spraying, there are the different droplet formations in the different faces in admittance area
（Tropenbildung）And wetting（Benetzung）.This especially air inlet pipe, air intake duct and intake valve.This is equally in injection
During the optimization at quarter by with respect to.For time for spraying, the amount that respectively, may be stored in characteristic field for corresponding operating point
It is read and uses.
Recognize according to of the invention：In dynamic engine operating state, important for mixture formation,
The state of the corresponding factor not engine operation with appearing in stable state is corresponding.This is especially adapted for use in intake valve or entered
The temperature of tracheae.Substantially change the slow of progress than operating point to these temperature changes.This can result in：Local in intake valve
The evaporation behavior of fuel and lower state are extremely different.It consequently leads to enter droplet in combustion chamber or at valve gap
Fuel deposit, the fuel deposit result in the granular material discharged of short time, until temperature reaches steady-state level.
The content of the invention
Invention advantage
Feature, the method according to the invention with independent claims 1 have on the other hand to be had the advantage that：Recognize dynamic
The engine operation of state, and time for spraying is so changed：So that minimize particulate matter row for this intermediateness
Put.This is realized according to of the invention whereby：So that the dynamical state of internal combustion engine is identified to by load value, and enter
Fuel injection in air inlet pipe starts to be shifted by into for the optimal region of dynamical state.It is preferred that injection starts to delay partially
Move.However, it is also possible to consider following running statuses：It is initially favourable to injection described in advance offset in the running status.
It is provided that in a kind of particularly advantageous embodiment：Using air quality and/or engine speed as load
Value is assessed.These values are available for controller to use, and are the dynamic good standards for internal combustion engine.Whereby can be special
The dynamical state of internal combustion engine is not identified simply：Carry out filtration load value by means of the filter with DT1- behaviors.It is particularly advantageous
Be：By the initial signal of the filter with DT1- behaviors, the dynamic spy for characterizing engine status is determined
Value indicative.This characteristic value be interpretation internal combustion engine whether be in dynamic state in good standard.Here, it can set：Only
Using a load value or use multiple load values.
It is provided that in a kind of particularly simple embodiment：When more than threshold value, known by the characteristic value
Not dynamic state, and by preposition injection（vorgelagerte Einspritzung）It is changed into the injection of air inlet synchronous mode.One
Denier characteristic value just in changing again into original state or changes into utilizing current running status to carry out again above threshold value
In the state of optimization.It is provided that in another embodiment：Injection start according to the characteristic value using certain numerical value as
Degree is towards lingeringly offseting.
On the other hand, the present invention relates to a kind of new, related process instruction --- and the process instruction is used to establish and existed
The computer program that can be run on controller --- program code, especially have compiling-and/or link instruction source generation
Code, wherein, described program code building is used for the computer program for implementing all steps of described method, when the journey
When sequence code is changed into the computer program that can be run according to process instruction, i.e., when being especially compiled and/or be linked.This
Kind of program code can especially provide for example, by the source code that can be downloaded in the server from internet.
Brief description of the drawings
Embodiments of the invention are illustrated in the accompanying drawings, and are set forth in ensuing explanation.Accompanying drawing is shown：
The main element of Fig. 1 apparatus according to the invention；With
Fig. 2 is used for the flow chart for illustrating the method according to the invention approach.
Embodiment
Figure 1 illustrates a kind of device for being used to run the internal combustion engine with intake manifold injection.Marked using 100
Internal combustion engine.Fresh air is supplied to the internal combustion engine by air inlet pipe 110.Supply is capable of determining that by means of sensor 115
To the air capacity of the internal combustion engine, and can be supplied the air capacity as signal ML to controller 150.In addition, institute
State and speed probe 130 is arranged at internal combustion engine, the speed probe transmits tach signal N to controller 150.The control
Device 150 puts on injection valve 120 by signal is manipulated, and the manipulation signal determines time for spraying and injection duration, and by
This determines the emitted dose of the fuel in a cylinder in the cylinder for entering internal combustion engine.In controller 150, with internal combustion engine
The unrelated time for spraying of operating point is stored in the characteristic field being not shown.This amount so optimizes：So that to the greatest extent may be used
Can few consumption when waste gas discharge as few as possible be ensured that.Generally implement so-called preposition injection, in the preposition spray
So sprayed in advance when penetrating：So that just finish to spray when intake valve is still closed.This preposition injection has
Waste gas discharge, especially granular material discharged aspect the advantages of.Recognize according to of the invention：In dynamic state of run, such as
Jumped in load（Lastsprung）Period, granular material discharged in preposition injection tempestuously raise.
For the injection of air inlet synchronous mode --- when air inlet synchronous mode sprays, at least a portion fuel quantity enters unlatching
Sprayed during air valve, the granular material discharged particulate matter injection slightly higher than in preposition injection in steady-state operation.But
Recognize according to of the invention：During jump is loaded, there is not the too high of particulate matter.Recognize according to of the invention：
It is favourable that the injection of air inlet synchronous mode is converted in dynamic state of run, because, in dynamical state, air inlet synchronous mode injection phase
Had the advantage that for preposition injection.
The DT1- for being identified by load value of dynamic engine operation is filtered to carry out.Pass through subsequent weight
（Gewichtung）Determine the characteristic value for the operation of dynamic engine.If multiple load values are used, then just will
The multiple characteristic value is summarized as a characteristic value.This is preferably by the way that two characteristic value phase Calais are carried out.If this feature
Value is more than threshold value, then with regard to changing optimal time for spraying to for for the operation of dynamic engine.It is preferred that change to air inlet
Synchronous mode sprays.
It is provided that in a kind of alternative embodiment：By the characteristic value run for dynamic engine, really
Make the skew of time for spraying.Therefore, it is possible to which one amount is proceeded by into skew around injection in characteristic field, the amount should
Independently stored with the characteristic value.This skew is added with the time for spraying for steady-state operation.Whereby, sprayed
Penetrate skew of the moment on retarding direction.
Figure 2 illustrates the embodiment with two load values.Also it can be considered that other load values, in this feelings
Under condition, other load values are correspondingly processed, and are similarly supplied to point 220.Alternatively it can also set
It is：Using only a load value, such as air capacity ML or rotating speed N.
The initial signal ML of air amount sensor 115 reaches weight 210 by the first DT1- sections 200.Speed probe 130
Initial signal N pass through the 2nd DT1- section 205 reach the second weights 215.The initial value of weight 210 and 215 converges in point 220
It is bonded to characteristic value.Two initial values of weight 215 and 210 preferably additively converge.Next, check in block 230：Feature
Whether value is more than threshold value.If characteristic value is more than threshold value, just implement preposition injection in step 240；If characteristic value is small
If threshold value, just implement the injection of air inlet synchronous mode in step 245.
Claims (10)
1. the method for running the internal combustion engine with intake manifold injection, wherein, the internal combustion engine is identified by load value
Dynamical state, and cause in the dynamical state of internal combustion engine, enter the fuel injection in air inlet pipe start to offset into pair
For the dynamic state in optimal region.
2. according to the method for claim 1, it is characterised in that in the dynamic state of the internal combustion engine, enter air inlet
Fuel injection in pipe is offset initially towards delay.
3. according to the method for claim 1, it is characterised in that using air quality and/or engine speed as load value
Assessed.
4. method according to claim 1 or 2, it is characterised in that by load value by means of the filtering with DT1- behaviors
Device carries out filtering and set out, and determines the dynamic characteristic value of the state for characterizing internal combustion engine.
5. according to the method for claim 3, it is characterised in that when threshold value is exceeded by characteristic value, from preposition injection conversion
Air inlet synchronous mode sprays.
6. the method according to any one of the claims, it is characterised in that injection starts according to characteristic value with certain
Numerical value be degree towards lingeringly offseting.
7. computer program, it is configured to implement all steps of method according to any one of claim 1 to 5.
8. the storage medium of machine-readable, computer program according to claim 6 is stored on the storage medium.
9. controller, it is configured to implement all steps of method according to any one of claim 1 to 5.
10. the program code of related process instruction, the process instruction is used to establish the computer that can be run on the controller
Program, wherein, described program code building computer program according to claim 6, when described program code is according to place
When reason instruction is changed into the computer program that can be run.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016215856.2 | 2016-08-24 | ||
| DE102016215856.2A DE102016215856A1 (en) | 2016-08-24 | 2016-08-24 | Method for operating an internal combustion engine with intake manifold injection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107781050A true CN107781050A (en) | 2018-03-09 |
| CN107781050B CN107781050B (en) | 2022-03-04 |
Family
ID=61166358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710729753.XA Active CN107781050B (en) | 2016-08-24 | 2017-08-23 | Method for operating an internal combustion engine with intake manifold injection |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107781050B (en) |
| DE (1) | DE102016215856A1 (en) |
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| DE102013201135B4 (en) | 2013-01-24 | 2022-07-14 | Robert Bosch Gmbh | Method for operating an internal combustion engine with manifold injection and means for its implementation |
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2016
- 2016-08-24 DE DE102016215856.2A patent/DE102016215856A1/en active Pending
-
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- 2017-08-23 CN CN201710729753.XA patent/CN107781050B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| DE102016215856A1 (en) | 2018-03-01 |
| CN107781050B (en) | 2022-03-04 |
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