DE10256241A1 - Method and device for controlling an internal combustion engine having exhaust gas recirculation - Google Patents
Method and device for controlling an internal combustion engine having exhaust gas recirculation Download PDFInfo
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- DE10256241A1 DE10256241A1 DE10256241A DE10256241A DE10256241A1 DE 10256241 A1 DE10256241 A1 DE 10256241A1 DE 10256241 A DE10256241 A DE 10256241A DE 10256241 A DE10256241 A DE 10256241A DE 10256241 A1 DE10256241 A1 DE 10256241A1
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- exhaust gas
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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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/005—Controlling exhaust gas recirculation [EGR] according to engine operating conditions
- F02D41/0052—Feedback control of engine parameters, e.g. for control of air/fuel ratio or intake air amount
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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
- F02D23/00—Controlling engines characterised by their being supercharged
-
- 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
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1466—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being a soot concentration or content
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
- F02M26/19—Means for improving the mixing of air and recirculated exhaust gases, e.g. venturis or multiple openings to the intake system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/28—Layout, e.g. schematics with liquid-cooled heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
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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
- F02D2041/141—Introducing closed-loop corrections characterised by the control or regulation method using a feed-forward control element
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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
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/38—Control for minimising smoke emissions, e.g. by applying smoke limitations on the fuel injection amount
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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
- F02D41/0002—Controlling intake air
- F02D41/0007—Controlling intake air for control of turbo-charged or super-charged engines
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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
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
- F02D41/1441—Plural 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
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
-
- 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
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/146—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an NOx content or concentration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
- F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/09—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine
- F02M26/10—Constructional details, e.g. structural combinations of EGR systems and supercharger systems; Arrangement of the EGR and supercharger systems with respect to the engine having means to increase the pressure difference between the exhaust and intake system, e.g. venturis, variable geometry turbines, check valves using pressure pulsations or throttles in the air intake or exhaust system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/23—Layout, e.g. schematics
- F02M26/25—Layout, e.g. schematics with coolers having bypasses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
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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
- Y02T10/12—Improving ICE efficiencies
-
- 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)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Bei einem Verfahren und einer Vorrichtung zur Steuerung einer Brennkraftmaschine (100) mit einer Abgasrückführung ist zur verbesserten Reduktion der Abgasemission einschließlich der Partikelrohemission sowie der Emission weiterer Bestandteile des Abgases insbesondere vorgesehen, dass die Menge rückgeführten Abgases in Abhängigkeit von der vor und/oder nach einer Abgasenergierückführvorrichtung (140) erfassten Abgasrohemission und/oder von weiteren Abgasbestandteilen geregelt wird (320).In a method and a device for controlling an internal combustion engine (100) with an exhaust gas recirculation, in order to improve the reduction of the exhaust gas emission, including the raw particle emission and the emission of further components of the exhaust gas, it is provided in particular that the amount of recirculated exhaust gas depends on the before and / or after Exhaust gas recirculation device (140) detected raw emissions and / or of other exhaust gas components is regulated (320).
Description
HINTERGRUND DER ERFINDUNGBACKGROUND THE INVENTION
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Steuerung einer eine Abgasrückführung aufweisenden Brennkraftmaschine.The invention relates to a method and a device for controlling an exhaust gas recirculation system Internal combustion engine.
Ein Verfahren und eine Vorrichtung
zur Steuerung einer Brennkraftmaschine mit einem Steller zur Beeinflussung
der Menge an rückgeführtem Abgas gehen
aus der
Beim Betrieb einer rauch- bzw. rußemittierenden Brennkraftmaschine mit einer Abgasrückführung, wie bspw. eines Dieselmotors oder eines direkteinspritzenden Benzinmotors im Schichtbetrieb, muss zur Einhaltung vorgegebener Emissionsgrenzwerte vermieden werden, dass eine zu hohe Abgasrückführrate zur übermäßigen Rußemission führt. Die erhöhte Rußemission tritt verstärkt bei Lastwechseln zu einer höheren Last nahe der Volllast ein.When operating a smoke or soot emitting Internal combustion engine with exhaust gas recirculation, such as a diesel engine or a direct-injection petrol engine in shift operation to avoid compliance with specified emission limit values, that an excessively high exhaust gas recirculation rate leads to excessive soot emission leads. The increased soot emission occurs more intensely when the load changes to a higher one Load close to full load.
Die Rauch- bzw. Rußbegrenzung begrenzt die Kraftstoffmengenzufuhr abhängig von der im Zylinder zur Verfügung stehenden Sauerstoffkonzentration, charakterisiert durch den an sich bekannten Lambdawert. Dadurch wird vermieden, dass bei geringem Lambdawert eine zu hohe Menge an Kraftstoff zur Verfügung gestellt wird, was zu einer unzulässig hohen Rußemission führen würde. Dabei wird ein minimaler Lambdawert mittels eines Kennfeldes abhängig vom Betriebspunkt der Brennkraftmaschine vorgegeben. Ferner ist eine Funktion vorhanden, die nach Vergleich des in an sich bekannter Weise bspw. mittels einer Breitband-Lambdasonde gemessenen Lambdawertes mit dem vorgegeben minimalen Lambdawert die zugemessene Kraftstoffmenge anpasst. Jedoch liefert der Lambdawert nur ein indirektes Maß für die Rußemission, so dass der Reduktion der Rußemission hier Grenzen gesetzt sind.The smoke or soot limitation limits the fuel supply depending on that in the cylinder disposal standing oxygen concentration, characterized by the known lambda value. This avoids that at low Lambda value provided too much fuel becomes what becomes inadmissible high soot emission to lead would. A minimum lambda value is dependent on a map Operating point of the internal combustion engine specified. Furthermore, one Function available after comparing the known in itself For example, the lambda value measured by means of a broadband lambda probe adjusts the metered amount of fuel with the specified minimum lambda value. However, the lambda value only provides an indirect measure of the soot emission, so the reduction of soot emission there are limits here.
ZUSAMMENFASSUNG DER ERFINDUNGSUMMARY THE INVENTION
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung der eingangs genannten Art dahingehend zu verbessern, dass die Abgasemission, einschließlich der Partikelrohemission sowie der Emission weiterer Bestandteile des Abgases, insbesondere im Hinblick auf zukünftige verschärfte Emissionsgrenzwerte weiter reduziert wird.The present invention lies the task of a method and an apparatus of the beginning to improve the type mentioned so that the exhaust gas emission, including particle emissions and the emission of other components of the exhaust gas, especially with regard to future stricter emission limits is further reduced.
Diese Aufgabe wird gelöst durch die Merkmale der unabhängigen Ansprüche. Vorteilhafte Ausgestaltungen und Weiterbildungen sind Gegenstand der Unteransprüche.This task is solved by the characteristics of the independent Expectations. Advantageous refinements and developments are the subject of Dependent claims.
Die Besonderheit der Erfindung liegt in der Regelung des Anteils an rückgeführtem Abgas in Abhängigkeit der Abgasemission der Brennkraftmaschine, welche in Abgasströmungsrichtung vor und/oder nach einer Abgasenergierückführvorrichtung wie bspw. einer Turbine eines Abgasturboladers, einem Kompressor oder dgl. erfasst wird. Die Abgasrohemission umfasst in den Ausgestaltungsvarianten sowohl Partikelrohemissionen wie bspw. von Ruß als auch die Schadstoffemission bspw. von NOx.The peculiarity of the invention lies in the regulation of the proportion of recirculated exhaust gas dependent on the exhaust gas emission of the internal combustion engine, which is in the exhaust gas flow direction before and / or after an exhaust gas recirculation device such as one Turbine of an exhaust gas turbocharger, a compressor or the like becomes. The raw exhaust emissions include in the design variants both raw particle emissions such as soot and pollutant emissions e.g. of NOx.
Durch Verwendung von Sensormitteln zur Erfassung der Abgasrohemission wird eine gezielte und hocheffiziente Regelung der Abgasrückführung ermöglicht. Dadurch können bevorzugt Rußemissionen und/oder NOx-Emissionen optimiert werden. Die Regelung kann dabei als Voll- oder unterlagerte Regelung oder als Überwachungsinstanz der Abgasrückführregelung verwendet werden. Sie kann zusätzlich durch eine Vorsteuerung bspw. zur Verbesserung der Dynamik der Abgasrückführung ergänzt werden.By using sensor means A targeted and highly efficient method is used to record the raw emissions Control of exhaust gas recirculation enables. This allows prefers soot emissions and / or NOx emissions can be optimized. The regulation can as a full or subordinate control or as a monitoring body for the exhaust gas recirculation control be used. You can additionally can be supplemented by a pilot control, for example to improve the dynamics of exhaust gas recirculation.
Die genannten Sensormittel ermöglichen ferner, zu einer vorgegebenen Abgasemissionsgrenze die der Brennkraftmaschine zur Verfügung gestellte Kraftstoffmenge abhängig von der tatsächlichen Abgasrohemission anzupassen. Dies ermöglicht eine Einengung von Flottentoleranzen in der Produktion von Brennkraftmaschinen der hier betroffenen Art insbesondere bzgl. der Rußemission. Dadurch kann die Abgasemissionsgrenze selbst noch angehoben werden.Enable the sensor means mentioned furthermore, at a predetermined exhaust emission limit that of the internal combustion engine to disposal amount of fuel depends from the actual Adjust raw emissions. This enables fleet tolerances to be narrowed in the production of internal combustion engines of the type concerned here in particular regarding the soot emission. As a result, the exhaust gas emission limit itself can still be raised.
Um die Abgasrohemission weiter zu reduzieren, kann vorgesehen sein, dass zusätzlich die der Brennkraftmaschine zugeführte Frischluftmasse, der in einem Abgasturbolader aufgebaute Ladedruck und/oder die Menge zugemessenen Kraftstoffs, wie vorbeschrieben, geregelt werden.To further increase the exhaust emissions reduce, it can be provided that that of the internal combustion engine supplied Fresh air mass, the boost pressure built up in an exhaust gas turbocharger and / or the amount of metered fuel is regulated as described above become.
Eine noch weitere Reduzierung der Abgasrohemission kann dadurch erreicht werden, dass die Abgasrohemission hinter einem Abgasnachbehandlungssystem, wie bspw. einem Abgaskatalysator oder einem Rußfilter, gemessen wird und die Menge rückgeführten Abgases in Abhängigkeit von der in Abgasströmungsrichtung hinter dem Abgasnachbehandlungssystem gemessenen Abgasrohemission geregelt wird.Yet another reduction in Raw emissions can be achieved in that the raw emissions behind an exhaust gas aftertreatment system, such as an exhaust gas catalytic converter or a soot filter, is measured and the amount of recirculated exhaust gas dependent on from that in the exhaust gas flow direction regulated exhaust emissions measured behind the exhaust aftertreatment system becomes.
Weiter kann vorgesehen sein, dass die Abgasrohemission auch vor dem Abgasnachbehandlungssystem erfasst wird und durch Vergleich der Messwerte der Abgasrohemission vor und hinter dem Abgasnachbehandlungssystem zusätzlich auf die Funktionsfähigkeit des Abgasnachbehandlungssystems geschlossen wird.It can also be provided that the raw emissions also recorded upstream of the exhaust aftertreatment system and by comparing the measured values of the raw emissions and behind the exhaust gas aftertreatment system also on the functionality of the exhaust gas aftertreatment system is closed.
KURZBESCHREIBUNG DER ZEICHNUNGBRIEF DESCRIPTION OF THE DRAWING
Die Erfindung wird nachfolgend, unter Bezugnahme auf die Zeichnung, anhand bevorzugter Ausführungsbeispiele eingehender beschrieben, aus denen sich weitere Merkmale und Vorteile der Erfindung ergeben. Im Einzelnen zeigenThe invention is more preferred below with reference to the drawing Exemplary embodiments are described in more detail, from which further features and advantages of the invention result. Show in detail
DETAILLIERTE BESCHREIBUNG BEVORZUGTER AUSFÜHRUNGSBEISPIELEDETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
In der
In der Zuführleitung
Es ist bereits hier anzumerken, dass in der genannten Regelung verarbeitete Signale wie bspw. der Sollwert der Luftmenge MLS, im Gegensatz zur jeweils zugrundeliegenden physikalischen Größe wie vorliegend die Frischluftmenge mL, zur besseren Unterscheidbarkeit in Großbuchstaben gesetzt sind.It should already be noted here that signals processed in the aforementioned regulation, such as, for example, the setpoint value for the air quantity MLS, in contrast to the underlying physical quantity such as the fresh air quantity m L in the present case, are set in capital letters for better differentiation.
Die Menge an zugeführter Frischluft
mL wird mittels eines als Luftmengenmesser
fungierenden Sensors
Das Ausgangssignal FP des Fahrpedalstellungsgebers
Diese vorbeschriebene Vorrichtung
arbeitet wie folgt. Die über
die Zuführleitung
Ein Teil des Abgases gelangt über die
Rückführleitung
Die Kraftstoffmengensteuerung
Die
In der Abgasrückführleitung ist ein AGR-Kühler
Mit Bezugszeichen
Anhand der
In der
In einem weiteren Ausführungsbeispiel
wird das Verhältnis
von NOx und Ruß zueinander und/oder
zu anderen messbaren oder durch modellbasierte Rechnungen erhaltenen
Parametern zu Zwecken einer Plausibilitätsprüfung verwendet. Hierdurch kann
bspw. geprüft
werden, ob die erfindungsgemäße Regelung
fehlerfrei und/oder effizient arbeitet. Im Falle, dass die Plausibilitätsprüfung ergibt, dass
sich die Messempfindlichkeit der beiden Sensoren
Bei einem etwa vorhandenen Abgasnachbehandlungssystem (AGN-System) und einer Anordnung der Sensoren hinter dem AGN-System ist eine (hier nicht gezeigte) Bypassleitung, und zwar unter Umgehung des AGN-Systems, angeordnet. Diese Bypassleitung wird zeitweilig geöffnet, um die vorbeschriebene Regelung der Abgasrückführung zu ermöglichen. Zusätzlich zu der AGR-Regelung können die Sensoren bei geschlossener Bypassleitung zur Feststellung der Effizienz oder einer möglichen Funktionsstörung des AGN-Systems genutzt werden.With an existing exhaust aftertreatment system (AGN system) and an arrangement of the sensors behind the AGN system is a bypass line (not shown here), bypassing it of the AGN system. This bypass line becomes temporary open, to enable the above-described regulation of exhaust gas recirculation. additionally to the EGR regulation can Sensors with closed bypass line to determine efficiency or a possible one dysfunction of the AGN system can be used.
Durch gleichzeitige Anordnung von Sensoren vor und hinter dem AGN-System wird ermöglicht, die Funktionsüberwachung der AGR-Regelung und des AGN-Systems miteinander zu kombinieren.By arranging Functional monitoring enables sensors in front of and behind the AGN system the EGR control and the AGN system to combine.
In den
Die
Die beschriebene Regelung wird nur im Betrieb der Brennkraftmaschine an einer vorgegebenen Emissionsgrenze aktiviert.The scheme described is only during operation of the internal combustion engine at a predetermined emission limit activated.
In der
Claims (13)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10256241A DE10256241A1 (en) | 2002-12-02 | 2002-12-02 | Method and device for controlling an internal combustion engine having exhaust gas recirculation |
FR0314058A FR2847941B1 (en) | 2002-12-02 | 2003-12-01 | METHOD AND DEVICE FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE EQUIPPED WITH AN EXHAUST GAS REINSTATEMENT SYSTEM |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10256241A DE10256241A1 (en) | 2002-12-02 | 2002-12-02 | Method and device for controlling an internal combustion engine having exhaust gas recirculation |
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Publication Number | Publication Date |
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DE10256241A1 true DE10256241A1 (en) | 2004-06-09 |
Family
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DE10256241A Withdrawn DE10256241A1 (en) | 2002-12-02 | 2002-12-02 | Method and device for controlling an internal combustion engine having exhaust gas recirculation |
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DE (1) | DE10256241A1 (en) |
FR (1) | FR2847941B1 (en) |
Cited By (12)
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EP1731743A2 (en) * | 2005-06-10 | 2006-12-13 | Frank Hille | Method for controlling an injection system and injection system with particle sensor arrangement for internal combustion engines |
FR2897108A1 (en) * | 2006-02-03 | 2007-08-10 | Valeo Sys Controle Moteur Sas | Exhaust gas recirculation valve opening control method for internal combustion engine, involves opening recirculation valve according to value representative of nitrogen oxide emission rate, which is measured in exhaust circuit of engine |
CN101737180A (en) * | 2008-11-13 | 2010-06-16 | 福特环球技术公司 | Residual gas composition control of internal combustion engine with exhaust gas recirculation |
DE102009058713A1 (en) * | 2009-12-17 | 2011-06-22 | Deutz Ag, 51149 | Method for exhaust gas recirculation |
DE102010012140A1 (en) * | 2010-03-20 | 2011-09-22 | Volkswagen Ag | Method for operating internal-combustion engine, particular diesel internal-combustion engine of motor vehicle, involves determining lambda actual value and lambda desired value of exhaust gas in exhaust gas tract |
FR2985781A1 (en) * | 2012-01-13 | 2013-07-19 | Renault Sa | Method for controlling internal combustion engine i.e. diesel engine in car, involves choosing lowest value among threshold fuel flow value and fuel flow value estimated from position of accelerator pedal as effective fuel flow value |
CN104121071A (en) * | 2013-04-28 | 2014-10-29 | 常州市利众环保科技有限公司 | Automobile exhaust gas circulating combustion green emission |
DE102004020123B4 (en) * | 2004-04-24 | 2015-07-09 | Conti Temic Microelectronic Gmbh | Method for adjusting the operation of an internal combustion engine |
DE102016105095A1 (en) * | 2016-03-18 | 2017-09-21 | Sick Engineering Gmbh | internal combustion engine |
DE102004035316B4 (en) | 2004-07-21 | 2018-10-18 | Robert Bosch Gmbh | Method and device for controlling an internal combustion engine |
DE102004035317B4 (en) * | 2004-07-21 | 2020-10-01 | Robert Bosch Gmbh | Method and device for controlling an internal combustion engine |
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FR2931887B1 (en) * | 2008-05-27 | 2010-05-07 | Renault Sas | METHOD FOR CONTROLLING THE TEMPERATURE OF EXHAUST GASES INJECTED IN A COMBUSTION CHAMBER |
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US4485794A (en) * | 1982-10-04 | 1984-12-04 | United Technologies Diesel Systems, Inc. | Method and apparatus for controlling diesel engine exhaust gas recirculation partly as a function of exhaust particulate level |
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US6301888B1 (en) * | 1999-07-22 | 2001-10-16 | The United States Of America As Represented By The Administrator Of The Environmental Protection Agency | Low emission, diesel-cycle engine |
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US6422003B1 (en) * | 2000-11-15 | 2002-07-23 | General Motors Corporation | NOX catalyst exhaust feedstream control system |
-
2002
- 2002-12-02 DE DE10256241A patent/DE10256241A1/en not_active Withdrawn
-
2003
- 2003-12-01 FR FR0314058A patent/FR2847941B1/en not_active Expired - Fee Related
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DE102004020123B4 (en) * | 2004-04-24 | 2015-07-09 | Conti Temic Microelectronic Gmbh | Method for adjusting the operation of an internal combustion engine |
DE102004035317B4 (en) * | 2004-07-21 | 2020-10-01 | Robert Bosch Gmbh | Method and device for controlling an internal combustion engine |
DE102004035316B4 (en) | 2004-07-21 | 2018-10-18 | Robert Bosch Gmbh | Method and device for controlling an internal combustion engine |
EP1731743A3 (en) * | 2005-06-10 | 2007-02-14 | Frank Hille | Method for controlling an injection system and injection system with particle sensor arrangement for internal combustion engines |
EP1731743A2 (en) * | 2005-06-10 | 2006-12-13 | Frank Hille | Method for controlling an injection system and injection system with particle sensor arrangement for internal combustion engines |
FR2897108A1 (en) * | 2006-02-03 | 2007-08-10 | Valeo Sys Controle Moteur Sas | Exhaust gas recirculation valve opening control method for internal combustion engine, involves opening recirculation valve according to value representative of nitrogen oxide emission rate, which is measured in exhaust circuit of engine |
DE112007001009B4 (en) * | 2006-04-27 | 2021-01-07 | Caterpillar Inc. | Engine emission control system |
CN101737180A (en) * | 2008-11-13 | 2010-06-16 | 福特环球技术公司 | Residual gas composition control of internal combustion engine with exhaust gas recirculation |
DE102009058713A1 (en) * | 2009-12-17 | 2011-06-22 | Deutz Ag, 51149 | Method for exhaust gas recirculation |
US8800266B2 (en) | 2009-12-17 | 2014-08-12 | Deutz Aktiengesellschaft | Method for exhaust gas-recirculation |
DE102010012140B4 (en) * | 2010-03-20 | 2019-08-01 | Volkswagen Ag | Method for operating an internal combustion engine |
DE102010012140A1 (en) * | 2010-03-20 | 2011-09-22 | Volkswagen Ag | Method for operating internal-combustion engine, particular diesel internal-combustion engine of motor vehicle, involves determining lambda actual value and lambda desired value of exhaust gas in exhaust gas tract |
FR2985781A1 (en) * | 2012-01-13 | 2013-07-19 | Renault Sa | Method for controlling internal combustion engine i.e. diesel engine in car, involves choosing lowest value among threshold fuel flow value and fuel flow value estimated from position of accelerator pedal as effective fuel flow value |
CN104121071A (en) * | 2013-04-28 | 2014-10-29 | 常州市利众环保科技有限公司 | Automobile exhaust gas circulating combustion green emission |
CN104121071B (en) * | 2013-04-28 | 2019-01-29 | 常州市利众环保科技有限公司 | A kind of vehicle exhaust circulating combustion method in green emissions |
DE102016105095A1 (en) * | 2016-03-18 | 2017-09-21 | Sick Engineering Gmbh | internal combustion engine |
CN107201959A (en) * | 2016-03-18 | 2017-09-26 | 西克工程有限公司 | Internal combustion engine |
DE102016105095B4 (en) | 2016-03-18 | 2020-07-30 | Sick Engineering Gmbh | Internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
FR2847941A1 (en) | 2004-06-04 |
FR2847941B1 (en) | 2006-04-28 |
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