EP2652301A1 - Procédé d'exécution coordonnée d'un nombre de processus d'étalonnage d'injecteur - Google Patents
Procédé d'exécution coordonnée d'un nombre de processus d'étalonnage d'injecteurInfo
- Publication number
- EP2652301A1 EP2652301A1 EP11794077.5A EP11794077A EP2652301A1 EP 2652301 A1 EP2652301 A1 EP 2652301A1 EP 11794077 A EP11794077 A EP 11794077A EP 2652301 A1 EP2652301 A1 EP 2652301A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- injector
- calibration operations
- combustion engine
- internal combustion
- injector calibration
- 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.)
- Withdrawn
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
- F02D41/24—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
- F02D41/2432—Methods of calibration
-
- 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
- F02D41/2441—Methods of calibrating or learning characterised by the learning conditions
- F02D41/2445—Methods of calibrating or learning characterised by the learning conditions characterised by a plurality of learning conditions or ranges
-
- 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
Definitions
- the present invention relates to a method of coordinating a number of injector calibration operations.
- Fuel injection pads allow the metering of the fuel required for combustion in an internal combustion engine by means of one or more injectors.
- gasoline direct injection and common rail injection the fuel is injected directly into the combustion chamber.
- the metered amount of fuel is of crucial importance.
- injector calibration methods are used in which a connection between activation duration and injection quantity is produced individually for each injector in order to be able to use it for future injections.
- An injector calibration method is presented in DE 10 2005 051 701 A1. Such methods are also described in DE 10 2009 003 212 A1 and DE 10 2009 003 211 A1. It is desirable to further improve injector calibration.
- the invention is based on the measure of performing a number of injector calibration operations in a priority-dependent order. Effectively, operating points and / or drive times are prioritized and handled in order of priority.
- the advantage of the proposed method lies in the fact that in particular those operating points or drive periods, which - bpsw. for emission or running rest reasons - have a particular relevance to the vehicle operation, early measured or calibrated.
- the present invention can be used in any combustion process - whether port injection or direct injection - and leads by early calibration of prioritized injector calibration operations to improved operation of the internal combustion engine in cases where these injections are then requested during operation.
- the improvement can be shown, for example, in an exhaust gas and / or noise emission reduction.
- Today's methods only measure operating points or activation periods, however, if they result randomly. A concrete prioritization does not take place.
- the prioritization is selected so that emission is reduced, smoothness is increased, durability and / or life is increased, and / or wear is reduced.
- cross influences are becoming increasingly important for the actual injector behavior.
- temperature of the internal combustion engine injection pressure, aging effects or pauses between two activations may be mentioned.
- these cross-influences are mapped in functionality, i. the injector calibration is performed depending on the operating point.
- An arithmetic unit according to the invention e.g. a control device of a motor vehicle is, in particular programmatically, configured to perform a method according to the invention.
- Suitable data carriers for the provision of the computer program are, in particular, floppy disks, hard disks, flash memories, EEPROMs, CD-ROMs, DVDs and the like. It is also possible to download a program via computer networks (Internet, intranet, etc.). Further advantages and embodiments of the invention will become apparent from the description and the accompanying drawings.
- Figure 1 shows a highly schematic representation of an internal combustion engine with a fuel injection system and a plurality of injectors.
- FIG. 2 shows a flowchart for illustrating an embodiment of the invention.
- FIG. 1 shows an internal combustion engine 10 which comprises a fuel reservoir 12, from which fuel is conveyed into a high-pressure fuel line 16 by means of a delivery system 14.
- the high pressure line 16 is formed for example as a common rail.
- the high-pressure line 16 is connected to injectors 18, which make it possible to inject fuel directly into the injectors 18 each associated combustion chambers 20.
- the operation of the internal combustion engine 10 and in particular the fuel injection system, which is formed for example by the conveyor system 14, the high pressure line 16 and the injectors 18 is controlled by a computing unit, here a controller 22.
- the controller 22 allows the detection of input values and the provision of output values or the actuation of actuators, in particular the control of the injectors 18th
- the control unit 22 is program-technically designed to carry out a method according to the invention. For this purpose, for example, in the
- Control unit uses a memory device are stored in the calibrated injection operations with associated priority values. These can be stored, for example, before the delivery of the internal combustion engine. Alternatively or additionally, the data may be stored in the event of scheduled maintenance, e.g. Workshop visits, customer service, etc., to be renewed.
- scheduled maintenance e.g. Workshop visits, customer service, etc.
- the invention begins at a step 200 where certain priority values are assigned to particular injector calibration operations to determine an order of calibrations to be performed.
- the order of the calibrations to be performed is expediently to be determined within the scope of the application and may be e.g. based on findings of the combustion process development.
- Preferably, particularly critical operating states of the injector are calibrated early with regard to the effects of emissions.
- the step 200 usually takes place at the manufacturer or in a workshop.
- a step 201 according to the prioritization, specific operating points and / or activation periods, which are assigned to the prioritized injector calibration processes, are targeted during the operation of the internal combustion engine.
- the control unit 22 controls the internal combustion engine 10 accordingly.
- Katforming operation heating of the catalytic converter after the cold start
- these short injections advantageously at an operating point characterizing the cold start - are assigned higher priority values than long injection periods. tions.
- the Katching operation uses a certain pressure.
- the injector calibration is expediently controlled by a coordinator (filed as a program part in the control unit).
- the role of the coordinator is to monitor the switch-on conditions for the functions, to trigger the calibration and to release correction values.
- the coordinator is adapted so that it proceeds depending on priority.
- a step 202 the calibration process is then performed.
- known methods are available, as described, for example, in the introduction.
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)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
La présente invention concerne un procédé d'exécution coordonnée d'un nombre de processus d'étalonnage d'un injecteur d'un moteur à combustion interne, selon lequel une valeur de priorité est attribuée à chacun des différents processus d'étalonnage d'injecteur à exécuter, les processus d'étalonnage d'injecteur étant exécutés dans l'ordre correspondant aux valeurs de priorité qui leur ont été attribuées.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010063344.5A DE102010063344B4 (de) | 2010-12-17 | 2010-12-17 | Verfahren zum koordinierten Durchführen einer Anzahl von Injektorkalibrierungsvorgängen |
PCT/EP2011/071253 WO2012079968A1 (fr) | 2010-12-17 | 2011-11-29 | Procédé d'exécution coordonnée d'un nombre de processus d'étalonnage d'injecteur |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2652301A1 true EP2652301A1 (fr) | 2013-10-23 |
Family
ID=45315746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11794077.5A Withdrawn EP2652301A1 (fr) | 2010-12-17 | 2011-11-29 | Procédé d'exécution coordonnée d'un nombre de processus d'étalonnage d'injecteur |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2652301A1 (fr) |
CN (1) | CN103249935B (fr) |
DE (1) | DE102010063344B4 (fr) |
WO (1) | WO2012079968A1 (fr) |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4115211C2 (de) * | 1991-05-10 | 2003-04-30 | Bosch Gmbh Robert | Verfahren zum Steuern der Kraftstoffzumessung bei einer Brennkraftmaschine |
IT1284681B1 (it) | 1996-07-17 | 1998-05-21 | Fiat Ricerche | Procedimento di taratura per un sistema di iniezione provvisto di iniettori. |
JP3838526B2 (ja) * | 1997-04-10 | 2006-10-25 | 株式会社デンソー | 内燃機関の燃料噴射制御装置及び燃料噴射制御方法 |
US6904354B2 (en) | 2001-04-10 | 2005-06-07 | Robert Bosch Gmbh | System and methods for correcting the injection behavior of at least one injector |
JP4016633B2 (ja) * | 2001-10-19 | 2007-12-05 | 日産自動車株式会社 | 内燃機関の燃料噴射制御装置 |
JP4449706B2 (ja) * | 2004-11-11 | 2010-04-14 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
DE102005051701A1 (de) | 2005-10-28 | 2007-05-03 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine |
DE102006002738A1 (de) * | 2006-01-20 | 2007-08-02 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine |
DE102007015654B4 (de) * | 2006-04-11 | 2019-03-28 | Conti Temic Microelectronic Gmbh | Verfahren und Vorrichtung zum Abgleichen eines Einspritzsystems einer Brennkraftmaschine |
JP4899791B2 (ja) * | 2006-10-30 | 2012-03-21 | 株式会社デンソー | 燃料噴射制御装置及び燃料供給系の診断方法 |
DE102007019640A1 (de) * | 2007-04-26 | 2008-10-30 | Robert Bosch Gmbh | Verfahren und Steuergerät zur Steuerung der Einspritzung bei einer Brennkraftmaschine |
JP4715821B2 (ja) | 2007-08-29 | 2011-07-06 | 株式会社デンソー | 噴射量学習装置 |
JP4428427B2 (ja) * | 2007-08-31 | 2010-03-10 | 株式会社デンソー | 燃料噴射特性検出装置及び燃料噴射指令補正装置 |
DE102008002482A1 (de) * | 2008-06-17 | 2009-12-24 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Kalibrierung eines Kraftstoffzumesssystems einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs |
DE102009003212A1 (de) | 2009-05-19 | 2010-11-25 | Robert Bosch Gmbh | Verfahren und Steuergerät zum Betreiben eines Einspritzventils |
DE102009003211B4 (de) | 2009-05-19 | 2019-08-01 | Robert Bosch Gmbh | Verfahren zur Ansteuerung von Injektoren in einer Brennkraftmaschine |
-
2010
- 2010-12-17 DE DE102010063344.5A patent/DE102010063344B4/de active Active
-
2011
- 2011-11-29 EP EP11794077.5A patent/EP2652301A1/fr not_active Withdrawn
- 2011-11-29 WO PCT/EP2011/071253 patent/WO2012079968A1/fr active Application Filing
- 2011-11-29 CN CN201180060768.2A patent/CN103249935B/zh active Active
Non-Patent Citations (1)
Title |
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See references of WO2012079968A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102010063344B4 (de) | 2023-03-23 |
DE102010063344A1 (de) | 2012-06-21 |
CN103249935B (zh) | 2016-08-10 |
CN103249935A (zh) | 2013-08-14 |
WO2012079968A1 (fr) | 2012-06-21 |
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