CN107013354A - Internal combustion engine is directly initiated - Google Patents
Internal combustion engine is directly initiated Download PDFInfo
- Publication number
- CN107013354A CN107013354A CN201611096686.4A CN201611096686A CN107013354A CN 107013354 A CN107013354 A CN 107013354A CN 201611096686 A CN201611096686 A CN 201611096686A CN 107013354 A CN107013354 A CN 107013354A
- Authority
- CN
- China
- Prior art keywords
- fuel
- internal combustion
- combustion engine
- injection
- directly
- 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
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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
- F02D41/38—Controlling fuel injection of the high pressure type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
-
- 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
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
-
- 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
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N99/00—Subject matter not provided for in other groups of this subclass
- F02N99/002—Starting combustion engines by ignition means
- F02N99/006—Providing a combustible mixture inside the cylinder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N99/00—Subject matter not provided for in other groups of this subclass
- F02N99/002—Starting combustion engines by ignition means
- F02N99/008—Providing a combustible mixture outside 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
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D2041/389—Controlling fuel injection of the high pressure type for injecting directly into the cylinder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
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)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
A kind of internal combustion engine（2）, wherein, for internal combustion engine（2）Fuel distributing, define directly injection and intake manifold injection so that at least in internal combustion engine（2）A kind of mode of operation under, the Part I of fuel can give dispensing by direct injection, and Part II can give dispensing by intake manifold injection, in order to directly initiate the internal combustion engine, propose：Fuel is introduced at least one cylinder by direct injection（4）In, fuel is lighted, and once there is enough torques, a part for fuel is just given into dispensing by intake manifold injection, wherein, 0% should be partially larger than and less than or equal to 100%.
Description
Technical field
The present invention relates to a kind of method for directly initiating internal combustion engine particularly gasoline engine, wherein, for internal combustion engine
Fuel distributing, defines directly injection and intake manifold injection so that at least under a kind of mode of operation of internal combustion engine, and the of fuel
A part gives dispensing by direct injection, and Part II gives dispensing by intake manifold injection.
In addition, the present invention relates to it is a kind of be used to performing device that internal combustion engine directly initiates, it is a kind of be used to controlling and adjust in
The controller of the operation of combustion engine and a kind of computer program that can be run on the controller.
Background technology
In order to reduce the consumption of fuel, start-stop-system is used in internal combustion engine, the system can be realized in automobile
During brake internal combustion engine is automatically stopped, and directly initiated automatically by so-called for example when pilot control gas pedal
Ground is again started up.
A kind of method directly initiated for internal combustion engine as known to the A1 of DE 10 2,009 046 473, in the method, hair
Motivation controlling organization and fuel-spraying system are touched in the case of engine stop so that in the combustion chamber of a cylinder
In or in the combustion chamber of multiple cylinders ensuing after being automatically stopped directly initiates the moment, exist sufficiently uniform
Fuel-air mixture.Known method can be especially useful for following internal combustion engine：In the internal combustion engine, the dispensing of fuel was both
Define directly injection and define intake manifold injection.Substantially, the combination of both spray regimes can be realized using optimal
Mixture formation and the corresponding advantage of burning.In the case of full load, if the dynamic property to internal combustion engine is required, directly
Connect spraying system advantageously, such as because pinking trend is smaller there.In the case of partial load region, the spray of air inlet tubular type
Penetrate advantageous, because then the quantity and hydrocarbon of particulate are less in waste gas.
The part that automobile increases is so-called flexible fuel vehicle（FFV）, flexible fuel vehicle can use gasoline, alcohol first
Any combination drive of alcohol and ethanol and these three fuel.The automobile preferably by（It is biological）Alcohol drives, wherein, having
When or some regions it is unavailable when, it would however also be possible to employ pure gasoline driven, thus also cause mobility be guaranteed.It is also known that institute
The dual system of meaning, alcohol and gasoline dividually give dispensing by each spraying system in this dual system.
Relative to traditional fuel, alcohol substantially has double vaporization enthalpy.So, when containing higher concentration in fuel
Alcohol when, to mixture prepare have special requirement.Directly initiated especially for progress and generate higher requirement.Example
Such as, a kind of method for being directly initiated as known to the A1 of DE 10 2,009 046 473, in the method, in engine
Targetedly spray fuel during coasting, this method is only capable of conditionally in the alcohol of the higher concentration in using fuel
Use.
The content of the invention
The method according to the invention and device with independent claims feature, which can be realized, to be directly initiated, this straight
On the one hand connect startup realizes so that also can reliably start when alcohol concentration of the internal combustion engine in fuel is higher, the opposing party
Face make it that discharge of poisonous waste and/or Particulate Emission are reduced relative to known method in burning.This is preferably by with lower section
Formula is realized：Fuel is introduced at least one cylinder by direct injection, fuel is lighted, and once there is enough turn
Square, just by intake manifold injection gives dispensing for the cylinder at least 50% fuel.This can be for example for first cylinder
Carried out in 360 ° of KW of evening after having carried out air-breathing and compression.During this period, other cylinders can be by directly spray
Penetrate operation.Then preferably all major part is caused to give dispensing by intake manifold injection under any circumstance, once ensure internal combustion engine
Start reliably and promptly, this may require that some other strokes.
It is preferred that carrying out position identification when starting, and suitable cylinder is identified, then will be fired by direct injection valve
Material, which is matched somebody with somebody, to be given in the cylinder.Because scavenging air valve is closed in this case, it can not almost realize by intake manifold injection
Directly initiate.
Advantageously, for when directly initiating first time spray, select a cylinder, the cylinder be in top dead centre it
Afterwards nearby.After prepared by of short duration mixture, fuel is next lighted, and by subsequent burning bent axle is in
In rotation.Now, otherwise directly in next stroke, or by after of short duration time interval so that fuel distributing
Leave directly injection and shifted towards intake manifold injection.It means that fuel mixture as most as possible is as rapid as possible
Ground gives dispensing by intake manifold injection.Thus achieve improved mixture to prepare, for ensuing driving stroke, pass through
This mode enables to particle number to significantly reduce.
In addition by reducing as early as possible using directly injection, the reduction of noise level is caused.
Particularly in the alcohol of the higher concentration in using fuel, had the advantage that according to the way of the present invention, because logical
Cross alcohol and generate the other conditions prepared for mixture.If fuel is by straight for example in the time longer during starting
Connect spraying system and give dispensing, then this can have adverse effect on to the discharge of hydrocarbon and particulate, because directly spraying
When penetrating, mixture prepares substantially more crucial.
For following situation：Cylinder is in unfavorable position for directly spraying, and carries out the direct of so-called extension
Start, in the directly initiating of the extension, spray and light for the first time and carried out in unpressed compression stroke, pass through this side
Formula, carries out the reversion of engine and the precommpression of expansion stroke.This is realized again by directly injection.Next, being described above
Be used to directly initiating be injected in the expansion stroke compressed now and same carried out by direct spraying system.
Combustion process in the cylinder terminated and internal combustion engine in rotate in after, as far as possible at once ground, but
Sometimes ground can also be somewhat postponed, so-called shunting operation is switched to（Splitbetrieb）, it is with high share by entering
Tracheae sprays the fuel of dispensing.It can also provide, in ensuing stroke, fuel is matched somebody with somebody by intake manifold injection completely
Give, uniform mixture can be realized in this way.
Favourable design substitute and/or supplement is provided in the dependent claims.
Other features, application feasibility and the advantage of the present invention is provided by the ensuing description to embodiment, these
Embodiment by brief description of the drawings, wherein, these features are for the present invention either individually or in different combinations
All it is important, without being explicitly pointed out again to this.
Brief description of the drawings
Fig. 1 shows the simplification view of internal combustion engine, and the internal combustion engine can directly spray and intake manifold injection work by gasoline；
Fig. 2 shows the flow chart of the possible embodiment of the method according to the invention.
Embodiment
Automobile 1 is schematically shown in Fig. 1, and the automobile includes internal combustion engine 2 and is particularly gasoline engine for driving automobile
1.Controller 3 is provided with automobile 1, the controller can realize the control to internal combustion engine 2 and/or regulation, particularly realization pair
The control of mixture formation.Internal combustion engine 2 has cylinder 4.Each cylinder 4 is equipped with least one direct injection valve 5.By straight
Connecing injection valve 5 can realize that gasoline directly sprays.Therefore, each directly in injection valve 5 passes through signal wire 16 and controller 3
Connection.
By high-pressure fuel pump 6, fuel is conveyed by fuel reserve container 7 by fuel conduit 20a and fuel high pressure pipeline 8
To direct injection valve 5.High-pressure fuel pump 6 is connected by signal wire 20 with controller 3.
In addition, automobile 1 has air inlet pipe 9, intake manifold injection valve 10 is arranged in the air inlet pipe.Intake manifold injection valve 10 with
Fuel low pressure line 14 is connected.Fuel low-lift pump 13 is arranged on fuel low pressure line 14, by the fuel low-lift pump, fuel by
Fuel reserve container 7 is transported to intake manifold injection valve 10.Therefore, fuel low-lift pump 13 passes through fuel conduit 20b and fuel reserve
Container 7 is connected.It can also imagine, fuel conduit 20a and 20b is realized by unique fuel conduit.Fuel low-lift pump
13 are connected by signal wire 19 with controller 3.
Controller 3 has processor 11 and memory unit 12.For example, store computer program in memory unit 12
25, the computer program is programmed to carry out the method according to the invention.Then, when computer program 25 is on processor 11
During operation, the method according to the invention is implemented by controller 3.
Fig. 2 shows a possible embodiment of this method by flow chart.This method starts from step 100 will
Ask and directly initiate.This can for example work as driver occurs when manipulating gas pedal after stopping traffic lights.
In a step 101, position identification is carried out to internal combustion engine 2, so as in distinguishing and being suitable for starting by lighting fuel
The cylinder 4 of combustion engine 2.Therefore, one cylinder 4 of selection, in the cylinder, piston is in top dead centre（OT）Scope not far afterwards
It is interior.
Suitable cylinder 4 can be identified by checking whether in a step 102.If it could not, so performing the direct of extension
Start.Therefore, one cylinder 4 of selection, the cylinder is in unpressed compression stroke.
In step 103 by direct injection nozzle 5 fuel injection into selected cylinder 4, and in step 104
In light.Thus, internal combustion engine 2 is inverted first.Then this method continues in step 106, in this step, by directly injection
Valve 5 is fuel injection into the combustion chamber of selected cylinder 4.
If recognized in a step 102, to directly initiate be feasible, and step 105 is branched to by step 102, and
A suitable cylinder 4 is selected, the cylinder is in top dead centre（OT）Afterwards nearby.For example, bent axle may be at lighting-OT
About 100 ° afterwards.Then in step 106 by direct injection valve 5 fuel injection to the combustion chamber of selected cylinder 4
In.
If necessary, in order to realize that sufficient mixture is formed, after of short duration time interval, in step 107
Middle execution is lighted.Thus, bent axle is in rotation, and starts internal combustion engine 2.In next possible stroke（This depends in addition
In number of cylinders）In, fuel distributing changes as follows, and the fuel required for currently the majority gives dispensing by intake manifold injection.
This is, for example, more than the 50% of required fuel.Can especially imagine, in ensuing stroke, 100% or
Almost 100% required fuel gives dispensing by intake manifold injection.This is illustrated as method and step 108 in fig. 2.
Shunt volume has the following advantages that towards intake manifold injection transfer：Mixture can be improved now to prepare for following
Driving stroke, in this way, particle number can be substantially reduced.In addition, run by only of short duration direct injection,
Cause the reduction of noise level.
In step 109, following internal combustion engine is in a known manner according to the strategy operation being consistent with present operating point.
The method according to the invention has particular advantage in the alcohol of the higher concentration in using fuel, because alcohol
There is obviously higher vaporization enthalpy relative to usual fuel, and the higher requirement of proposition is therefore prepared to mixture.If
Abandon step 108 and most fuel gives dispensing also by direct injection in addition, then this discharge for HC- and particulate
With passive consequence.
Therefore, the method according to the invention and the apparatus according to the invention in fuel even for having high wine
The FFV of essence, which can also be realized, reliably to be directly initiated, while the discharge for reducing and being produced by burning can be realized.
Claims (11)
1. one kind is used to directly initiate internal combustion engine（2）The particularly method of gasoline engine, wherein, for internal combustion engine（2）Fuel match somebody with somebody
Give, define directly injection and intake manifold injection so that at least in internal combustion engine（2）A kind of mode of operation under, the first of fuel
Part gives dispensing by direct injection, and Part II gives dispensing by intake manifold injection, it is characterised in that fuel is borrowed
Directly injection is helped to be introduced at least one cylinder（4）In, fuel is lighted, and once there is enough torques, just by fuel
A part gives dispensing by intake manifold injection, wherein, 0% should be partially larger than and less than or equal to 100%.
2. according to the method for claim 1, it is characterised in that directly initiating period first time point in next possible follow
In stroke after combustion, for the cylinder（4）By at least the 50% of intake manifold injection dispensing fuel.
3. according to the method for claim 1 or 2, it is characterised in that the fuel being dispensed is gasoline and/or alcohol.
4. according to the method for claim 3, it is characterised in that internal combustion engine（2）It can be worked by flexible fuel system.
5. according to the method for any one of preceding claims, it is characterised in that put identification directly initiating advance line position
（101）, and identify at least one and be suitable for performing the cylinder for directly initiating mesh and spray fuel（105）.
6. according to the method for any one of preceding claims, it is characterised in that what is be extended directly initiates（103,104,
106,107）, and by directly injection dispensing for internal combustion engine（2）Reversion required for fuel.
7. a kind of internal combustion engine（2）Particularly gasoline engine, wherein, for internal combustion engine（2）Fuel distributing, define directly injection and
Intake manifold injection so that at least in internal combustion engine（2）A kind of mode of operation under, the Part I of fuel can be by directly spraying
Give dispensing, and Part II can give dispensing by intake manifold injection, it is characterised in that, can in order to be directly initiated
So that fuel is introduced at least one cylinder by direct injection（4）In and can light, and be provided with some mechanisms, with
Just by least the 50% of intake manifold injection dispensing fuel once it there is enough torques.
8. according to the internal combustion engine of claim 7（2）, it is characterised in that the internal combustion engine is designed to implement according to claim 1
To any one of 6 method.
9. one kind is used to controlling and adjusting internal combustion engine（2）The particularly controller of the operation of gasoline engine（3）, wherein, for internal combustion
Machine（2）Fuel distributing, define directly injection and intake manifold injection so that at least in internal combustion engine（2）A kind of mode of operation
Under, the Part I of fuel can give dispensing by direct injection, and Part II can be matched somebody with somebody by intake manifold injection
Give, it is characterised in that the controller（3）It is programmed for implementing the method according to any one of claim 1 to 6.
10. a kind of computer program（25）, it can be for controlling and adjusting internal combustion engine（2）Operation controller（3）Upper fortune
OK, it is characterised in that the computer program（25）It is programmed for when it is in controller（3）Performed during upper operation according to right
It is required that any one of 1 to 6 method.
11. according to the computer program of claim 10（25）, it is characterised in that the computer program（25）It is stored in storage
On part, wherein, the memory unit is implemented as being associated with controller（3）Memory area（12）A part, by reality
It is now random access memory, read-only storage, optical storage medium, or is implemented as a part for virtual memory.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015224145.9 | 2015-12-03 | ||
| DE102015224145.9A DE102015224145A1 (en) | 2015-12-03 | 2015-12-03 | Direct start of an internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107013354A true CN107013354A (en) | 2017-08-04 |
| CN107013354B CN107013354B (en) | 2022-06-14 |
Family
ID=58722375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611096686.4A Active CN107013354B (en) | 2015-12-03 | 2016-12-02 | Direct start of internal combustion engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107013354B (en) |
| DE (1) | DE102015224145A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1664340A (en) * | 2004-03-03 | 2005-09-07 | 丰田自动车株式会社 | Engine fuel injection device and engine fuel injection method |
| CN101091050A (en) * | 2005-03-18 | 2007-12-19 | 丰田自动车株式会社 | Control apparatus for vehicle |
| CN102374013A (en) * | 2010-08-16 | 2012-03-14 | 福特环球技术公司 | Method for operating an internal combustion engine with gas as a fuel, and internal combustion engine executing the method |
| CN103883387A (en) * | 2014-03-25 | 2014-06-25 | 清华大学 | Combustion organizing method and combustion system |
| JP2015129489A (en) * | 2014-01-08 | 2015-07-16 | 本田技研工業株式会社 | Vehicle controller |
| US20150285139A1 (en) * | 2014-04-07 | 2015-10-08 | The Board Of Trustees Of The Leland Stanford Junior University | Stoichiometric High-Temperature Direct-Injection Compression-Ignition Engine |
| CN105089903A (en) * | 2014-05-15 | 2015-11-25 | 福特环球技术公司 | Method and system for ignition engine control |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009046473A1 (en) | 2009-11-06 | 2011-05-12 | Robert Bosch Gmbh | Method for direct starting of internal combustion engine of motor vehicle, involves injecting fuel immediately before or during engine runout, particularly during automatic stop of internal combustion engine |
-
2015
- 2015-12-03 DE DE102015224145.9A patent/DE102015224145A1/en not_active Withdrawn
-
2016
- 2016-12-02 CN CN201611096686.4A patent/CN107013354B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1664340A (en) * | 2004-03-03 | 2005-09-07 | 丰田自动车株式会社 | Engine fuel injection device and engine fuel injection method |
| CN101091050A (en) * | 2005-03-18 | 2007-12-19 | 丰田自动车株式会社 | Control apparatus for vehicle |
| CN102374013A (en) * | 2010-08-16 | 2012-03-14 | 福特环球技术公司 | Method for operating an internal combustion engine with gas as a fuel, and internal combustion engine executing the method |
| JP2015129489A (en) * | 2014-01-08 | 2015-07-16 | 本田技研工業株式会社 | Vehicle controller |
| CN103883387A (en) * | 2014-03-25 | 2014-06-25 | 清华大学 | Combustion organizing method and combustion system |
| US20150285139A1 (en) * | 2014-04-07 | 2015-10-08 | The Board Of Trustees Of The Leland Stanford Junior University | Stoichiometric High-Temperature Direct-Injection Compression-Ignition Engine |
| CN105089903A (en) * | 2014-05-15 | 2015-11-25 | 福特环球技术公司 | Method and system for ignition engine control |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102015224145A1 (en) | 2017-06-08 |
| CN107013354B (en) | 2022-06-14 |
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