CN107366586A - Method for adjusting the nozzle for spray fuel - Google Patents
Method for adjusting the nozzle for spray fuel Download PDFInfo
- Publication number
- CN107366586A CN107366586A CN201710325874.8A CN201710325874A CN107366586A CN 107366586 A CN107366586 A CN 107366586A CN 201710325874 A CN201710325874 A CN 201710325874A CN 107366586 A CN107366586 A CN 107366586A
- Authority
- CN
- China
- Prior art keywords
- regulating system
- nozzle
- computer program
- running status
- rated value
- 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.)
- Pending
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
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
-
- 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
- F02D2041/1409—Introducing closed-loop corrections characterised by the control or regulation method using at least a proportional, integral or derivative controller
-
- 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
- F02D2041/1418—Several control loops, either as alternatives or simultaneous
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2037—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit for preventing bouncing of the valve needle
-
- 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
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2055—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit with means for determining actual opening or closing time
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0602—Fuel pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/063—Lift of the valve needle
-
- 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)
- Fuel-Injection Apparatus (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
Describe a kind of method for being used to adjust the nozzle for spray fuel.There is provided the first regulating system, first regulating system adjusts the run case of nozzle to rated value.In addition, it is also provided with the second regulating system.According to running status, switched between first regulating system and second regulating system.
Description
Technical field
The present invention is in method as described in the preamble according to claim 1 as starting point.Subject of the present invention further relates to
A kind of computer program and a kind of control device.
Background technology
The A1 of DE 10 2,014 204 098 disclose a kind of nozzle for being used for regulation and being used to inject fuel into internal combustion engine
Method.Here, being provided with sensor, the sensor provides a kind of signal of the proportional pressure with the valve chamber of nozzle.
By identifying the run case of nozzle according to the signal is temporally analyzed.Here, the unlatching for being related to such as switch valve continues
Time, close duration, opening time point and shut-in time point or the unlatching duration, the opening time that are related to needle-valve
Point, shut-in time point.
The nozzle is so constructed:So that switch valve is manipulated by magnet valve or by piezoelectric activated device.According to this
The position of individual switch valve, in the so-called control room of valve(Steuerraum)In pressure take different values.According in the control
Pressure in room processed, the needle-valve move between its open position and its closed position, and the needle-valve passes through The fuel stream described
Nozzle is discharged into the combustion chamber of internal combustion engine.Can provide signal using sensor, the injection of the signal display switch valve or
The beginning and end that person manipulates.This tittle or the amount being derived there are then able to be adjusted on prespecified rated value.
The tolerance related to emitted dose of nozzle depends on operating point, that is to say, that different depending on pressure and emitted dose
Effect occupy an leading position and different amount varying strengths it is associated with emitted dose.
If adjust one in these amounts associated with emitted dose amount now, then such regulation only it is determined that fortune
It is optimal in line range.
The content of the invention
Advantages of the present invention
In contrast, with independent claims feature, the method according to the invention with advantages below:With not being conditioned
State is compared, and reduces emitted dose distribution as much as possible in all running statuses.According to the present invention, this is realized whereby:According to
Running status, switched between the regulating system for the run case that two are respectively used to nozzle.It is preferred that use nozzle, spray
Penetrate system or internal combustion engine running status.Here, hereinafter, by " run case " this concept as this operation thing
The synonym at the time point that part occurs uses.So, run case " closing needle-valve " and meanwhile also illustrate that this close carry out when
Between point.Using this synonymy, each run case can be used as using for the regulated quantity of regulating system.
By introduce the second regulating system and between these regulating systems, considered according to the switching of operating point described in
The tolerance contribution of nozzle(Toleranzbeiträge), and realize subtracting for the distribution of the emitted dose in whole spray characteristic field
It is small.The preferred difference of described two regulating systems is used actual value and rated value, i.e. difference is used regulation
Amount.
Particularly advantageously:Described two regulating system differences are used regulated quantity.It is that is, described two
Regulating system adjusts different run case to respective rated value.It means that prespecified be used for the first operation thing
First rated value of part, and will be adjusted for the actual value of this run case to this rated value.It is in addition, prespecified
It is used for the second rated value of the second run case, and this rated value is arrived into the actual value regulation for this run case
On.
It is particularly advantageous:According to the running status, switched between different regulator parameters.Here, this
Can instead of regulated quantity switching be set, or be provided as addition thereto.
Particularly advantageously:The running status of the running status of internal combustion engine or the nozzle is made as running status
With fuel is injected into the internal combustion engine.Particularly advantageously:According to fuel quantity to be sprayed, between the regulating system
Realize switching.By fuel pressure and/or temperature value be used as it is other, it is determined that the running status and therefore in the switching
When the amount that is advantageously taken into account that.
Particularly advantageously:Feature in the behavior of nozzle in switching is thought of as running status.
Particularly advantageously:According to running status, different regulator parameters is used.
In a kind of particularly advantageous embodiment, switch valve is opened into duration and the unlatching duration of needle-valve
Used as run case.In small emitted dose, by the unlatching duration regulation of the switch valve to rated value;Also,
In big emitted dose, by the unlatching duration regulation of the needle-valve to rated value.
On the other hand, the present invention relates to a kind of new program code, can be transported together with for creating on control device
The process instruction of capable computer program, especially there is the source code of compiling instruction and/or link instruction, wherein, the journey
Sequence code building is used for the computer program for implementing a kind of all steps of method in described method, when it(Program generation
Code)When being converted into the computer program that can be run according to the process instruction, i.e., especially it is compiled and/or is linked
When.This program code enables in particular to provide for example, by the source code that can be downloaded at the server from internet.
Brief description of the drawings
A kind of embodiment of the present invention is shown in the drawings, the embodiment is in ensuing explanation by by further
Illustrate.
Embodiment
The essential element of the method according to the invention is shown in the drawings.
Nozzle represents using 100.The nozzle includes actuator(Steller)102, the actuator is especially by structure
Make as magnet valve or piezoelectric activated device, and also referred to as switch valve.It can be influenceed in unshowned control by the actuator
Pressure in room, the pressure are obtained by sensor 104.According to the pressure in the control room, unshowned needle-valve is opened,
And during the needle-valve discharges The fuel stream into the combustion chamber of internal combustion engine or interrupt this The fuel stream.For the actuator 102
Apply controlled quentity controlled variable(Stellgröße)SG, the controlled quentity controlled variable are provided by adjuster 110.It is the adjuster by selector 115
Supply the first adjusting deviation R1 or the second adjusting deviation R2.The first adjusting deviation R1 gives regulation device in advance by the first rated value
120 and first the prespecified device 125 of actual value formed by means of tie point 128.The prespecified device 125 of first actual value
So analyze the output signal from 104 sensor:So that the first regulated quantity is available.
In addition.The output signal of the sensor 104 also reaches the second actual value determiner 135, the sensor it is defeated
Go out signal in the second tie point 138 with the prespecified device 130 of second rated value to be connected, to form the second adjusting deviation
R2.The second actual value determiner 135 determines the second regulated quantity by the sensor signal of the sensor 104.
By identifying the run case of the nozzle according to the signal is temporally analyzed.This run case is especially
The opening time point and/or shut-in time point of the switch valve or the opening time point and/or shut-in time point of the needle-valve.
This run case can use directly as regulated quantity.However, it is also possible to it will derive from these run case
Value(Such as the unlatching duration of the needle-valve and/or the switch valve)Used as regulated quantity.When the unlatching continues
Between correspond to time interval between the opening time point and shut-in time point.Also others can also be run thing
Part(Such as the valve components of described two valves rise time point or described two valves valve components flight time)As tune
Section amount uses.
The selector 115 selects the described first or second adjusting deviation to be transferred to adjuster according to its input signal
110, the input signal is provided by characteristic field 140.Fuel quantity QK to be sprayed enters the spy as important input value
In property field 140, the fuel quantity to be sprayed is provided by the internal control unit 145 of the control device.In the characteristic field
In 140, according to the fuel quantity to be sprayed and other amounts(Such as fuel temperature or the fuel pressure in oily rail)To protect
Deposit test value.Described first or second adjusting deviation are supplied to described by the selector 115 according to the experiment value
Adjuster 110.
It means that according to the input value of the characteristic field 140, i.e., according to the running status of the internal combustion engine, from described
First rated value and first actual value are set out or from second rated value and second actual value, advised in advance
The fixed controlled quentity controlled variable for being used to load the actuator 102.According to the running status of the internal combustion engine, another by the nozzle is special
Value indicative is adjusted to prespecified rated value.
In a kind of particularly advantageous embodiment, it can also be provided that:The characteristic field 140 influences the adjuster
110 transport behavior.According to the test value, from the rated value and the actual value, joined using different adjusters
Number calculates the controlled quentity controlled variable.Here it is particularly advantageous that the adjuster is implemented as integration-adjuster(Integral-
Regler).On the other hand, the difference between the regulated quantity and its rated value is supplied to integrator, by the output of the integrator
Value uses as the corrected value for the controlled quentity controlled variable.It is also advantageous that:Also implemented using a kind of Proctor Central described
Adjuster, the value of the Proctor Central output control amount, nozzle of the Proctor Central with regard to average value(100)For be it is required,
So that the regulated quantity corresponds to its rated value.In favourable mode, by the defeated of the integrator and the Proctor Central
Go out value and use as controlled quentity controlled variable.According to selected regulated quantity, the time constant of such as integrator can be changed.
In a kind of particularly simple embodiment, it can also be provided that:Characteristic field 140 is not provided with, but is only set
Threshold query device, the threshold query device check whether operation characteristic value(Such as the fuel quantity to be sprayed or the oily rail
Pressure)Switched over more than threshold value, and thus according to this result between the different regulating system.
Preferably, the switching between regulating system is achieved in that:So that this regulated quantity is used:The regulation
Measure and the emitted dose of part is spread with maximum influence.
It can be also provided that in a kind of alternative embodiment:It is that all nozzles determine in operational mode:
A regulated quantity is used only in whole characteristic field.If the feature for recognizing determination is appeared in the behavior of nozzle, activate to it
The switching of his regulator parameter.Therefore, can be point according to the nozzle behavior being identified out from identical base state
Not Yong Yu each nozzle regulation determine regulation strategy.Here it is particularly advantageous that:By the switch valve when it is closed
Strong vibration uses as feature.Such strong vibration can recognize from the process of the signal of the sensor 104.
In the case where recognizing strong vibration, second regulating system is switched to.In addition, it is particularly advantageous that:By the switch
The strong vibration of valve identifies with the combination of small amount to be sprayed as running status, according to switching to the running status
Second regulating system.
It is provided that in a kind of particularly advantageous embodiment:The unlatching duration of the needle-valve is used into first to adjust
Section amount.As the second regulated quantity, used using the unlatching duration of the switch valve as regulated quantity, and therefore as real
Actual value or rated value use.It is preferred that in small emitted dose or when recognizing the strong vibration of the switch valve, carry out
To the switching of second regulated quantity.
Claims (13)
1. the method for adjusting the nozzle for spray fuel, methods described has the first regulating system, first regulation
System adjusts the run case of nozzle to rated value, it is characterised in that there is provided the second regulating system, and according to operation shape
State switches between first regulating system and second regulating system.
2. according to the method for claim 1, it is characterised in that first regulating system and second regulating system
Difference is the use of regulated quantity.
3. method according to claim 1 or 2, it is characterised in that first regulating system and the second regulation system
System is distinguished by their regulator parameter.
4. according to the method for claim 1, it is characterised in that used using fuel quantity to be sprayed as running status.
5. the method according to claim 1 or 4, it is characterised in that using fuel pressure and/or temperature value as running status
To use.
6. according to the method for claim 1, it is characterised in that come the feature in the behavior of nozzle as running status
Use.
7. according to the method for claim 1, it is characterised in that first regulating system is by the unlatching duration of needle-valve
Regulation is to rated value, and second regulating system adjusts the unlatching duration of switch valve to rated value.
8. according to the method for claim 7, it is characterised in that in small emitted dose, use second regulating system.
9. the method according to claim 7 or 8, it is characterised in that when recognizing the vibration increased of the switch valve,
Use second regulating system.
10. computer program, the computer program is configured to implement side according to any one of claim 1 to 9
A kind of all steps of method in method.
11. the storage medium that machine can be read, computer according to claim 10 is stored on the storage medium
Program.
12. control device, the control device is configured to implement in the method according to any one of claim 1 to 9
A kind of all steps of method.
13. program code is together with for creating the process instruction of computer program that can be run on control device, wherein, institute
State program code and generate computer program according to claim 10, when it is converted into what can be run according to the process instruction
During computer program.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016208086.5A DE102016208086A1 (en) | 2016-05-11 | 2016-05-11 | Method for controlling an injector for injecting fuel |
DE102016208086.5 | 2016-05-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107366586A true CN107366586A (en) | 2017-11-21 |
Family
ID=60163571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710325874.8A Pending CN107366586A (en) | 2016-05-11 | 2017-05-10 | Method for adjusting the nozzle for spray fuel |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN107366586A (en) |
DE (1) | DE102016208086A1 (en) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5531204A (en) * | 1994-08-10 | 1996-07-02 | Zexel Corporation | Injection timing device for fuel injection system |
US7047943B1 (en) * | 1999-07-27 | 2006-05-23 | Yamaha Marine Kabushiki Kaisha | Engine control system for outboard motor |
JP2009068503A (en) * | 2009-01-08 | 2009-04-02 | Denso Corp | Control device of cylinder injection internal combustion engine |
US20090198430A1 (en) * | 2008-01-08 | 2009-08-06 | Honda Motor Co., Ltd. | Control apparatus and method and control unit |
JP2009243408A (en) * | 2008-03-31 | 2009-10-22 | Honda Motor Co Ltd | Fuel injection control apparatus for multi-fuel engine |
JP4373474B2 (en) * | 2004-12-28 | 2009-11-25 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Method of operating an internal combustion engine |
DE102008054405A1 (en) * | 2008-12-09 | 2010-06-10 | Robert Bosch Gmbh | Method for controlling internal-combustion engine, involves discarding reference value in two characteristic diagrams, where one of characteristic diagrams is selected depending on operating mode and injection sample of reference value |
CN101871401A (en) * | 2009-04-21 | 2010-10-27 | 日立汽车***株式会社 | The fuel injection control system of internal-combustion engine and method |
DE102011004190A1 (en) * | 2011-02-16 | 2012-08-16 | Bayerische Motoren Werke Aktiengesellschaft | Method for specifying injection pulses for injecting fuel into cylinder of direct injection internal combustion engine for vehicle, involves shifting injection position of injection pulses based on predetermined time or crank angle range |
CN104929793A (en) * | 2014-03-17 | 2015-09-23 | 通用汽车环球科技运作有限责任公司 | Method of operating a fuel injector |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014204098A1 (en) | 2014-03-06 | 2015-09-10 | Robert Bosch Gmbh | Method for controlling a common rail injector |
-
2016
- 2016-05-11 DE DE102016208086.5A patent/DE102016208086A1/en not_active Withdrawn
-
2017
- 2017-05-10 CN CN201710325874.8A patent/CN107366586A/en active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5531204A (en) * | 1994-08-10 | 1996-07-02 | Zexel Corporation | Injection timing device for fuel injection system |
US7047943B1 (en) * | 1999-07-27 | 2006-05-23 | Yamaha Marine Kabushiki Kaisha | Engine control system for outboard motor |
JP4373474B2 (en) * | 2004-12-28 | 2009-11-25 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Method of operating an internal combustion engine |
US20090198430A1 (en) * | 2008-01-08 | 2009-08-06 | Honda Motor Co., Ltd. | Control apparatus and method and control unit |
JP2009243408A (en) * | 2008-03-31 | 2009-10-22 | Honda Motor Co Ltd | Fuel injection control apparatus for multi-fuel engine |
DE102008054405A1 (en) * | 2008-12-09 | 2010-06-10 | Robert Bosch Gmbh | Method for controlling internal-combustion engine, involves discarding reference value in two characteristic diagrams, where one of characteristic diagrams is selected depending on operating mode and injection sample of reference value |
JP2009068503A (en) * | 2009-01-08 | 2009-04-02 | Denso Corp | Control device of cylinder injection internal combustion engine |
CN101871401A (en) * | 2009-04-21 | 2010-10-27 | 日立汽车***株式会社 | The fuel injection control system of internal-combustion engine and method |
DE102011004190A1 (en) * | 2011-02-16 | 2012-08-16 | Bayerische Motoren Werke Aktiengesellschaft | Method for specifying injection pulses for injecting fuel into cylinder of direct injection internal combustion engine for vehicle, involves shifting injection position of injection pulses based on predetermined time or crank angle range |
CN104929793A (en) * | 2014-03-17 | 2015-09-23 | 通用汽车环球科技运作有限责任公司 | Method of operating a fuel injector |
Also Published As
Publication number | Publication date |
---|---|
DE102016208086A1 (en) | 2017-11-16 |
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Application publication date: 20171121 |