DE102013019738B3 - Method for operating an internal combustion engine - Google Patents
Method for operating an internal combustion engine Download PDFInfo
- Publication number
- DE102013019738B3 DE102013019738B3 DE201310019738 DE102013019738A DE102013019738B3 DE 102013019738 B3 DE102013019738 B3 DE 102013019738B3 DE 201310019738 DE201310019738 DE 201310019738 DE 102013019738 A DE102013019738 A DE 102013019738A DE 102013019738 B3 DE102013019738 B3 DE 102013019738B3
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- DE
- Germany
- Prior art keywords
- manipulated variable
- ignition
- knock
- knock level
- influenced
- 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.)
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Classifications
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- 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
- F02P5/00—Advancing or retarding ignition; Control therefor
- F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
- F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
- F02P5/15—Digital data processing
- F02P5/152—Digital data processing dependent on pinking
- F02P5/1523—Digital data processing dependent on pinking with particular laws of return to advance, e.g. step by step, differing from the laws of retard
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- 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
- F02D35/027—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using knock sensors
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- 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
- F02D41/1402—Adaptive control
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- 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
Abstract
Es ist Aufgabe der vorliegenden Erfindung, ein Verfahren bereitzustellen, was einen sicheren Betrieb einer Brennkraftmaschine möglichst nahe der Klopfgrenze erlaubt. Diese Aufgabe wird erfindungsgemäß mittels eines Verfahrens zum Betrieb einer Brennkraftmaschine mit einer Fremdzündung gelöst, mit einem Regelkreis, wobei ein Klopfpegel-Istwert ermittelt und mit einem Klopfpegel-Sollwert verglichen wird, wobei eine Abweichung zwischen Klopfpegel-Istwert und dem Klopfpegel-Sollwert einem Regler zugeführt wird, der daraus eine Stellgröße bildet, wobei die Stellgröße der Zündzeitpunkt ist oder die Stellgröße den Zündzeitpunkt beeinflusst, wobei die Stellgröße oder der von der Stellgröße beeinflusste Zündzeitpunkt überwacht wird, wobei in Abhängigkeit der Überwachung der Klopfpegel-Sollwert beeinflusst wird.It is an object of the present invention to provide a method which allows safe operation of an internal combustion engine as close as possible to the knock limit. This object is achieved by means of a method for operating an internal combustion engine with a spark ignition, with a control loop, wherein a knock level feedback is determined and compared with a knock level setpoint, wherein a deviation between the knock level feedback and the knock level setpoint supplied to a controller is, which forms a manipulated variable, wherein the manipulated variable is the ignition timing or the manipulated variable affects the ignition timing, wherein the manipulated variable or the affected by the manipulated variable ignition timing is monitored, depending on the monitoring of the knocking level setpoint is influenced.
Description
Die vorliegende Erfindung betrifft ein Verfahren zum Betrieb einer Brennkraftmaschine mit den Merkmalen gemäß Patentanspruch 1.The present invention relates to a method for operating an internal combustion engine having the features according to
Gemäß dem Dokument
Weiterhin ist es gemäß der nachveröffentlichten
Weiterhin ist gemäß der
Der Zündwinkel wird vom Endzündwinkel in Dekrementen in Richtung ”früh” verstellt, bis Klopfen und/oder Verbrennungsaussetzer festgestellt werden. Dabei wird die Stellzeit für die Zündwinkelverstellung lastabhängig festgelegt und an jedem Meßpunkt werden die Meßwerte jeweils während einer Zeitdauer abgetastet.The ignition angle is adjusted from the final ignition angle in decrements in the direction of "early" until knocking and / or misfiring are detected. The positioning time for the ignition angle adjustment is determined depending on the load and at each measuring point, the measured values are each sampled during a period of time.
Darüber hinaus ist gemäß der
Es ist daher Aufgabe der vorliegenden Erfindung ein Verfahren bereitzustellen, was einen sicheren Betrieb einer Brennkraftmaschine möglichst nahe der Klopfgrenze erlaubt.It is therefore an object of the present invention to provide a method which allows safe operation of an internal combustion engine as close as possible to the knock limit.
Diese Aufgabe wird erfindungsgemäß mittels eines Verfahrens zum Betrieb einer Brennkraftmaschine mit einer Fremdzündung gelöst, mit einem Regelkreis, wobei ein Klopfpegel-Istwert ermittelt und mit einem Klopfpegel-Sollwert verglichen wird, wobei eine Abweichung zwischen Klopfpegel-Istwert und dem Klopfpegel-Sollwert einem Regler zugeführt wird, der daraus eine Stellgröße bildet, wobei die Stellgröße der Zündzeitpunkt ist oder die Stellgröße den Zündzeitpunkt beeinflusst, wobei die Stellgröße oder der von der Stellgröße beeinflusste Zündzeitpunkt überwacht wird, wobei in Abhängigkeit der Überwachung der Klopfpegel-Sollwert beeinflusst wird. Insbesondere wird in Abhängigkeit der Überwachung eine Korrekturgröße gebildet und der Klopfpegel-Sollwert in Abhängigkeit von der Korrekturgröße beeinflusst.This object is achieved by means of a method for operating an internal combustion engine with a spark ignition, with a control loop, wherein a knock level actual value is determined and compared with a knock level setpoint, wherein a deviation between the knock level feedback and the knock level setpoint supplied to a controller is, which forms a manipulated variable, wherein the manipulated variable is the ignition timing or the manipulated variable affects the ignition timing, wherein the manipulated variable or the Controlled by the manipulated variable ignition timing is monitored, depending on the monitoring of the knocking level setpoint is influenced. In particular, a correction variable is formed as a function of the monitoring, and the knock level set value is influenced as a function of the correction variable.
Die Stellgröße kann wie beschrieben der Zündzeitpunkt selbst sein oder aber die Stellgröße beeinflusst den Zündzeitpunkt, beispielsweise dadurch, dass die Stellgröße ein Faktor ist, mit dem der Zündzeitpunkt multipliziert wird oder die Stellgröße ist ein Term, der zu dem Zündzeitpunkt hinzuaddiert bzw. von dem Zündzeitpunkt abgezogen wird. Insbesondere wird der Klopfpegel-Sollwert entsprechend der Korrekturgröße vermindert. Auf diese Weise wird sicher verhindert, dass die Brennkraftmaschine zu nahe an der Klopfgrenze betrieben oder die Klopfgrenze überschritten wird, da die Stellgröße oder der von der Stellgröße beeinflusste Zündzeitpunkt überwacht wird und in Abhängigkeit von dieser Überwachung insbesondere bei zu großen Stellbewegungen der Stellgröße bzw. zu großen Stellbewegungen des durch die Stellgröße beeinflussten Zündzeitpunktes der Klopfpegel-Sollwert vermindert wird. Ohne viel Aufwand ist durch die Überwachung der Stellgröße oder des durch die Stellgröße beeinflussten Zündzeitpunktes der sichere Betrieb einer Brennkraftmaschine mit einer Fremdzündung mit einem Regler mit bestimmten Parametern möglich, auch wenn der Zusammenhang zwischen dem Klopfpegel und dem Zündzeitpunkt im Bereich um den Klopfpegel-Sollwert einen großen Anstieg aufweist und der Anstieg beispielsweise in Abhängigkeit des jeweiligen Betriebspunktes unterschiedlich groß ist.The manipulated variable may, as described, be the ignition time itself or the manipulated variable influences the ignition time, for example by the manipulated variable being a factor with which the ignition point is multiplied or the manipulated variable being a term added to the ignition point or from the ignition point is deducted. In particular, the knock level setpoint is decreased according to the correction amount. In this way, it is reliably prevented that the internal combustion engine is operated too close to the knock limit or the knock limit is exceeded, since the manipulated variable or the controlled by the manipulated variable ignition timing is monitored and in response to this monitoring in particular at too large actuating movements of the manipulated variable or large adjusting movements of the manipulated variable influenced by the ignition timing of the knock level setpoint is reduced. Without much effort is the monitoring of the manipulated variable or influenced by the manipulated variable ignition timing safe operation of an internal combustion engine with spark ignition with a controller with certain parameters possible, even if the relationship between the knock level and the ignition in the range around the knock level setpoint has large increase and the increase, for example, depending on the operating point varies.
Weitere vorteilhafte Ausgestaltungen der vorliegenden Erfindung sind dem nachfolgenden Ausführungsbeispiel sowie den abhängigen Patentansprüchen zu entnehmen. In
In Anlehnung an
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310019738 DE102013019738B3 (en) | 2013-11-27 | 2013-11-27 | Method for operating an internal combustion engine |
PCT/DE2014/000611 WO2015078433A2 (en) | 2013-11-27 | 2014-11-27 | Method for operating an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE201310019738 DE102013019738B3 (en) | 2013-11-27 | 2013-11-27 | Method for operating an internal combustion engine |
Publications (1)
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DE102013019738B3 true DE102013019738B3 (en) | 2015-04-02 |
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DE201310019738 Active DE102013019738B3 (en) | 2013-11-27 | 2013-11-27 | Method for operating an internal combustion engine |
Country Status (2)
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DE (1) | DE102013019738B3 (en) |
WO (1) | WO2015078433A2 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10219659A1 (en) * | 2002-05-02 | 2003-12-04 | Bayerische Motoren Werke Ag | Determining ignition angle for internal combustion engine electronic controller, involves retarding ignition angle in increments until component threshold temperature reached and/or misfiring detected |
DE10260012A1 (en) * | 2002-12-17 | 2004-07-08 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Piston knocking avoidance method for an internal combustion engine in which evaluation and comparison units are used with measured and calculated parameters to determine a knocking tendency and thus prevent it |
DE102011103427A1 (en) * | 2011-06-07 | 2012-12-13 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Method for knock control of internal combustion engine, involves assigning knocking limit, and determining operating point and cylinder-selective default value for gradient of knock level curve in response to firing angle |
WO2014071900A1 (en) * | 2012-11-12 | 2014-05-15 | Iav Gmbh | Adaptation of a knock control |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6408242B1 (en) * | 1997-12-11 | 2002-06-18 | Cummins, Inc. | Apparatus and method for diagnosing and controlling an ignition system of an internal combustion engine |
JP3851583B2 (en) * | 2002-03-28 | 2006-11-29 | 三菱電機株式会社 | Knock control device for internal combustion engine |
US7134423B2 (en) * | 2002-11-01 | 2006-11-14 | Visteon Global Technologies, Inc. | Ignition diagnosis and combustion feedback control system using an ionization signal |
JP4535051B2 (en) * | 2006-09-28 | 2010-09-01 | トヨタ自動車株式会社 | Multi-fuel internal combustion engine |
DE102008042475B4 (en) * | 2008-09-30 | 2019-10-24 | Robert Bosch Gmbh | Method and device for determining a knocking event during a switching operation between operating modes of an internal combustion engine |
ITBO20090308A1 (en) * | 2009-05-13 | 2010-11-14 | Magneti Marelli Spa | METHOD OF CHECKING DETONATION IN AN INTERNAL COMBUSTION ENGINE |
DE102010063975B4 (en) * | 2010-12-22 | 2022-05-19 | Robert Bosch Gmbh | Controlling an internal combustion engine to account for fuel properties |
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2013
- 2013-11-27 DE DE201310019738 patent/DE102013019738B3/en active Active
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2014
- 2014-11-27 WO PCT/DE2014/000611 patent/WO2015078433A2/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10219659A1 (en) * | 2002-05-02 | 2003-12-04 | Bayerische Motoren Werke Ag | Determining ignition angle for internal combustion engine electronic controller, involves retarding ignition angle in increments until component threshold temperature reached and/or misfiring detected |
DE10260012A1 (en) * | 2002-12-17 | 2004-07-08 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Piston knocking avoidance method for an internal combustion engine in which evaluation and comparison units are used with measured and calculated parameters to determine a knocking tendency and thus prevent it |
DE102011103427A1 (en) * | 2011-06-07 | 2012-12-13 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Method for knock control of internal combustion engine, involves assigning knocking limit, and determining operating point and cylinder-selective default value for gradient of knock level curve in response to firing angle |
WO2014071900A1 (en) * | 2012-11-12 | 2014-05-15 | Iav Gmbh | Adaptation of a knock control |
Also Published As
Publication number | Publication date |
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WO2015078433A2 (en) | 2015-06-04 |
WO2015078433A3 (en) | 2015-11-26 |
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