EP1464834A1 - Verfahren zum Optimieren der Zündung eines Luft-Kraftstoff-Gemisches für Direktstarts einer Brennkraftmaschine - Google Patents
Verfahren zum Optimieren der Zündung eines Luft-Kraftstoff-Gemisches für Direktstarts einer Brennkraftmaschine Download PDFInfo
- Publication number
- EP1464834A1 EP1464834A1 EP04100978A EP04100978A EP1464834A1 EP 1464834 A1 EP1464834 A1 EP 1464834A1 EP 04100978 A EP04100978 A EP 04100978A EP 04100978 A EP04100978 A EP 04100978A EP 1464834 A1 EP1464834 A1 EP 1464834A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ignition
- combustion engine
- correction function
- value
- internal combustion
- 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
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Classifications
-
- 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
- F02N99/004—Generation of the ignition spark
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/025—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures
-
- 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
- F02D41/065—Introducing corrections for particular operating conditions for engine starting or warming up for starting at hot start or restart
-
- 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
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
- F02P15/12—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits having means for strengthening spark during starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
- F02P3/04—Layout of circuits
- F02P3/045—Layout of circuits for control of the dwell or anti dwell time
-
- 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
Definitions
- the present invention relates to a method for optimization the ignition of an air-fuel mixture for direct starts a spark-ignition internal combustion engine with fuel injection.
- Such starting methods are known and for example in DE 197 41 294 A1 and DE 197 43 492 A1.
- she are an integral part of a start-stop strategy for the internal combustion engine and come mainly in city operations for use (stop and go). They serve to save fuel and avoiding or reducing pollutant emissions.
- the present invention is based on the object Procedure for optimizing the ignition energy for direct starts one spark ignition internal combustion engine with fuel injection specify.
- a corrected value for the ignition energy is determined and the Ignition of the air-fuel mixture with an ignition energy according to this corrected value.
- the pressure in the combustion chamber is the first commissioned cylinder comparatively low.
- This reduced pressure compared to normal operating conditions in the combustion chamber leads to other combustion properties and / or operating states of the internal combustion engine.
- Through the correction function provided according to the invention it ensures that for each direct start the optimal ignition energy is provided, which is special is important for the first combustion in the first in Commissioned cylinder.
- the method according to the invention is for every type of ignition system including flame beam, plasma and laser ignition systems suitable. However, it is preferably used in conjunction with coil ignition systems with electrical ignition coil and spark plug used.
- coil ignition systems that of Ignition coil to be delivered to the spark plug by the properties and charging time of the ignition coil determined. Because the coil properties are unchangeable, is therefore usually the charging time of the ignition coil is used to change the ignition energy.
- standard value and corrected value for the ignition energy a standard value and corrected value of the charging time of the ignition coil used.
- the predefined correction function can be any correction function be how to correct and adjust others Operating parameters of internal combustion engines are generally known is.
- the correction function can one additively or multiplicatively linked to the standard value Correction value or from an interpolation two maps obtained during calibration exist.
- the The simplest case is one of the operating parameters of the internal combustion engine independent correction function, e.g. B. a fixed multiplicative or additive correction value, used.
- the Correction function of pressure and / or temperature of the air-fuel mixture dependent in the combustion chamber of the internal combustion engine is.
- the method according to the invention ensures that the right ignition energy for direct starts a safe ignition of the air-fuel mixture is provided to trigger self-sustaining combustion. In the case of a coil ignition system, this is achieved by the invention intended correction of the charging time of the ignition coil reached. In addition to a perfect ignition and The mixture according to the invention burns the mixture The protection of the ignition coil against overheating is also achieved. Another advantage of the method according to the invention is that it is extremely simple from the electronic Operating control unit (EMS) can be carried out can. Even if the correction function is adapted to pressure and / or temperature of the mixture in the combustion chamber is only one relatively low computing effort of the electronic operating control device required.
- EMS Electronic Operating control unit
- curve a represents a voltage signal which requests a specific charging of an ignition coil (not shown) of a spark-ignition internal combustion engine with fuel injection.
- the charging of the ignition coil thus begins at time t 1 and ends at time t 2 .
- Curve b shows the energy generated in the ignition coil, which according to curve c is emitted to the spark plug (not shown) in an energy surge in order to generate a corresponding ignition spark.
- the time period t 2 - t 1 thus represents the charging time TD (dwell time) of the ignition coil, which determines the size of the energy stored in the ignition coil.
- time period t 2 - t 1 represents the standard value for the charging time IP_TD in normal operation of the internal combustion engine.
- this standard value is corrected according to the invention (normally increased) in order to ensure that the air-fuel mixture is properly ignited despite the comparatively low pressure in the combustion chamber.
- the correction function used for this exists, for example from a fixed correction factor.
- B the default value for the loading time 3 milliseconds and the correction factor 1.5
- the corrected loading time is 4.5 milliseconds.
- FIG. 1 shows that the corrected (increased) loading time at a corresponding one Increases the energy generated in the ignition coil leads.
- Fig. 2 illustrates for this an embodiment in which an additive Correction factor of the temperature and pressure in the Combustion chamber depends.
- IP TD the loading time the ignition coil during normal operation of the internal combustion engine entered.
- charging time TD the ignition coil uses the default value IP_TD.
- IP_TD becomes the Corrected loading time with an additive correction value IP_TD_COR.
- This additive correction value becomes apparent during calibration extracted map 5 in which the correction value over temperature and pressure (inputs 3 and 4) is applied.
- the one obtained in step 6 by addition corrected loading time TD is then at output 1 for the purpose of further Processing available.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
- Fig. 1
- ein Diagramm, in dem die Spannung V bzw. Energie E einer Zündspule über der Zeit t aufgetragen ist und das zur Erläuterung von mit der Ladezeit einer Zündspule zusammenhängenden Parametern dient, und
- Fig. 2
- eine schematische Darstellung eines Ausführungsbeispiels des erfindungsgemäßen Verfahrens.
Claims (6)
- Verfahren zum Optimieren der Zündung eines Luft-Kraftstoff-Gemisches für Direktstarts einer fremdgezündeten Brennkraftmaschine mit Kraftstoffeinspritzung, bei dem für jeden Direktstart aus einem im Normalbetrieb verwendeten Standardwert für die Zündenergie mittels einer vorgegebenen Korrekturfunktion ein korrigierter Wert für die Zündenergie ermittelt und die Zündung des Gemisches mit einer Zündenergie entsprechend diesem korrigierten Wert durchgeführt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Korrekturfunktion unabhängig von Betriebsparametern der Brennkraftmaschine ist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Korrekturfunktion abhängig von Druck und/oder Temperatur des Luft-Kraftstoff-Gemisches im Brennraum der Brennkraftmaschine bei dem jeweiligen Direktstart ist.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die vorgegebene Korrekturfunktion aus einem mit dem Standardwert additiv oder multiplikativ verknüpften Korrekturwert besteht.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die vorgegebene Korrekturfunktion aus einer Interpolation zweier beim Kalibrieren gewonnener Kennfelder besteht.
- Verfahren nach einem der vorhergehenden Ansprüche für ein Spulenzündsystem mit Zündspule und Zündkerze, dadurch gekennzeichnet, dass als Standardwert und korrigierter Wert für die Zündenergie ein Standardwert und ein korrigierter Wert der Ladezeit der Zündspule verwendet werden.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003115283 DE10315283B3 (de) | 2003-04-03 | 2003-04-03 | Verfahren zum Optimieren der Zündung eines Luft-Kraftstoff-Gemisches für Direktstarts einer Brennkraftmaschine |
DE10315283 | 2003-04-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1464834A1 true EP1464834A1 (de) | 2004-10-06 |
EP1464834B1 EP1464834B1 (de) | 2006-11-22 |
Family
ID=32478249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20040100978 Expired - Lifetime EP1464834B1 (de) | 2003-04-03 | 2004-03-10 | Verfahren zum Optimieren der Zündung eines Luft-Kraftstoff-Gemisches für Direktstarts einer Brennkraftmaschine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1464834B1 (de) |
DE (2) | DE10315283B3 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2941501A1 (fr) * | 2009-01-28 | 2010-07-30 | Renault Sas | Systeme et procede de controle de demarrage de moteur a combustion interne |
DE102017010300A1 (de) | 2017-11-07 | 2019-05-09 | Daimler Ag | Verfahren zum Entflammen eines Kraftstoff-Luft-Gemisches in einem Brennraum einer Verbrennungskraftmaschine |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58140475A (ja) * | 1982-02-15 | 1983-08-20 | Nippon Denso Co Ltd | 内燃機関用点火装置 |
WO1995018644A1 (en) | 1994-01-07 | 1995-07-13 | Abbott Laboratories | Anesthetic transfer system |
US5674381A (en) | 1993-03-29 | 1997-10-07 | Doctro A.V.V. | Assembly of filtering apparatus and replaceable filter; and filtering apparatus and filter for use therein |
DE19743492A1 (de) * | 1997-10-01 | 1999-04-15 | Bosch Gmbh Robert | Verfahren zum Starten einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs |
DE19748051A1 (de) * | 1997-10-30 | 1999-05-06 | Schubert Mario | Zündanlage für Verbrennungsmotoren |
DE20113789U1 (de) | 2001-01-10 | 2002-05-23 | B. Braun Melsungen Ag, 34212 Melsungen | Medizingerät |
EP1284363A2 (de) * | 2001-08-15 | 2003-02-19 | Nissan Motor Co., Ltd. | Zündzeitpunktsteuervorrichtung für einen Verbrennungsmotor |
US6626355B2 (en) | 2000-02-07 | 2003-09-30 | W.O.M. World Of Medicine Gmbh | Medical device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2825830C3 (de) * | 1978-06-13 | 1993-12-02 | Bosch Gmbh Robert | Zündeinrichtung für Brennkraftmaschinen |
DE19741294A1 (de) * | 1997-09-19 | 1999-03-25 | Bosch Gmbh Robert | Antrieb eines Kraftfahrzeuges |
-
2003
- 2003-04-03 DE DE2003115283 patent/DE10315283B3/de not_active Expired - Fee Related
-
2004
- 2004-03-10 DE DE200450002048 patent/DE502004002048D1/de not_active Expired - Lifetime
- 2004-03-10 EP EP20040100978 patent/EP1464834B1/de not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58140475A (ja) * | 1982-02-15 | 1983-08-20 | Nippon Denso Co Ltd | 内燃機関用点火装置 |
US5674381A (en) | 1993-03-29 | 1997-10-07 | Doctro A.V.V. | Assembly of filtering apparatus and replaceable filter; and filtering apparatus and filter for use therein |
WO1995018644A1 (en) | 1994-01-07 | 1995-07-13 | Abbott Laboratories | Anesthetic transfer system |
DE19743492A1 (de) * | 1997-10-01 | 1999-04-15 | Bosch Gmbh Robert | Verfahren zum Starten einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs |
DE19748051A1 (de) * | 1997-10-30 | 1999-05-06 | Schubert Mario | Zündanlage für Verbrennungsmotoren |
US6626355B2 (en) | 2000-02-07 | 2003-09-30 | W.O.M. World Of Medicine Gmbh | Medical device |
DE20113789U1 (de) | 2001-01-10 | 2002-05-23 | B. Braun Melsungen Ag, 34212 Melsungen | Medizingerät |
EP1284363A2 (de) * | 2001-08-15 | 2003-02-19 | Nissan Motor Co., Ltd. | Zündzeitpunktsteuervorrichtung für einen Verbrennungsmotor |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 007, no. 257 (M - 256) 16 November 1983 (1983-11-16) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2941501A1 (fr) * | 2009-01-28 | 2010-07-30 | Renault Sas | Systeme et procede de controle de demarrage de moteur a combustion interne |
WO2010086535A1 (fr) * | 2009-01-28 | 2010-08-05 | Renault S.A.S. | Systeme et procede de controle de demarrage de moteur a combustion interne |
DE102017010300A1 (de) | 2017-11-07 | 2019-05-09 | Daimler Ag | Verfahren zum Entflammen eines Kraftstoff-Luft-Gemisches in einem Brennraum einer Verbrennungskraftmaschine |
Also Published As
Publication number | Publication date |
---|---|
EP1464834B1 (de) | 2006-11-22 |
DE502004002048D1 (de) | 2007-01-04 |
DE10315283B3 (de) | 2004-07-08 |
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