DE102006003488A1 - Operating method for controller for use in internal combustion engine, involves supplying air-fuel mixture with air ratio, production of exhaust gas with exhaust gas temperature and adjustment of ignition angle based on torque requirement - Google Patents
Operating method for controller for use in internal combustion engine, involves supplying air-fuel mixture with air ratio, production of exhaust gas with exhaust gas temperature and adjustment of ignition angle based on torque requirement Download PDFInfo
- Publication number
- DE102006003488A1 DE102006003488A1 DE200610003488 DE102006003488A DE102006003488A1 DE 102006003488 A1 DE102006003488 A1 DE 102006003488A1 DE 200610003488 DE200610003488 DE 200610003488 DE 102006003488 A DE102006003488 A DE 102006003488A DE 102006003488 A1 DE102006003488 A1 DE 102006003488A1
- Authority
- DE
- Germany
- Prior art keywords
- exhaust gas
- internal combustion
- combustion engine
- temperature
- air
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D37/00—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for
- F02D37/02—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for one of the functions being ignition
-
- 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
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
- F02D41/0235—Introducing corrections for particular conditions exterior to the engine in relation with the state of the exhaust gas treating apparatus
-
- 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
- F02D41/1446—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 exhaust temperatures
-
- 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
- F02D2200/08—Exhaust gas treatment apparatus parameters
- F02D2200/0802—Temperature of the exhaust gas treatment apparatus
-
- 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
- F02D41/22—Safety or indicating devices for abnormal conditions
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)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Stand der TechnikState of technology
Die Erfindung betrifft ein Verfahren zum Betrieb einer Steuerung einer Brennkraftmaschine, der ein Kraftstoff-Luft-Gemisch mit einem Luftverhältnis Lambda zugeführt wird, wobei die Brennkraftmaschine Abgas mit einer Abgastemperatur erzeugt und wobei aufgrund einer Momentenanforderung eine Zündwinkelausgabe eine Zündwinkelspätverstellung vornimmt.The The invention relates to a method for operating a controller of a Internal combustion engine, which is a fuel-air mixture with an air ratio lambda supplied is, wherein the internal combustion engine exhaust gas with an exhaust gas temperature generated and wherein due to a torque request a Zündwinkelausgabe a Zündwinkelspätverstellung performs.
Eine
schnelle Verringerung des Drehmoments einer Brennkraftmaschine durch
eine Verstellung eines Zündzeitpunktes
in Richtung spät
dient beispielsweise der Verringerung von Momentensprüngen bei
einem manuellen oder automatischen Gangwechsel. Die
Katalysatoren zur Reinigung des Abgases von Brennkraftmaschinen werden möglichst nahe zum Brennraum angebracht, um eine schnelle Aufheizung und damit eine schnelle Betriebsbereitschaft zu erreichen. Es ist allerdings eine thermische Überlastung zu vermeiden, da hierdurch die Reinigungswirkung dauerhaft geschädigt werden kann. Turbolader zur Erhöhung des Ladedrucks der Zuluft von Brennkraftmaschinen sind ein weiteres motornahe im Abgasstrang eingesetztes Bauteil. Auch diese müssen wegen der hohen mechanischen Belastung im Betrieb gegen Übertemperatur geschützt werden.catalysts for cleaning the exhaust gas of internal combustion engines are possible attached to the combustion chamber to heat up quickly and thus to achieve a quick operational readiness. It is, however a thermal overload to avoid, since thereby the cleaning effect are permanently damaged can. Turbocharger to increase the boost pressure of the supply air of internal combustion engines are another close to the engine component used in the exhaust system. These must also because the high mechanical load during operation against overtemperature protected become.
Eine Zündzeitpunktspätverstellung zur Reduzierung des Motormoments führt zu einer Erhöhung der Abgastemperatur, da der nicht als mechanische Leistung abgegebene Energieinhalt des Kraftstoffs als Wärmeenergie mit dem Abgas abgeführt werden muss. Ist nun der Katalysator oder eine andere motornahe im Abgasstrang eingebaute Einrichtung wie ein Turbolader bereits nahe der thermischen Belastungsgrenze, ist eine weitere Erhöhung der Abgastemperatur unerwünscht. Im Falle einer Momentensteuerung durch Zündwinkelverstellung ist eine Begrenzung der Abgastemperatur und damit auch der Temperatur des Katalysators und/oder des Turboladers möglich, indem die Zündwinkelspätverstellung begrenzt wird. Hierdurch wird jedoch die Momentenreduktion ebenfalls begrenzt.A spark retard to reduce the engine torque leads to an increase in the Exhaust gas temperature, since the not delivered as mechanical power Energy content of the fuel can be dissipated as heat energy with the exhaust gas got to. Is now the catalyst or another close to the engine in the exhaust system built-in device like a turbocharger already close to the thermal load limit, is another increase the exhaust gas temperature undesirable. In the case of torque control by ignition angle adjustment is a limitation the exhaust gas temperature and thus also the temperature of the catalyst and / or the turbocharger possible by the ignition angle retard is limited. As a result, however, the torque reduction also limited.
Die
Es ist Aufgabe der Erfindung, eine zu starke Temperaturerhöhung als Folge einer Zündwinkelspätverstellung zu vermeiden und dennoch eine Momentenreduktion zu erlauben.It Object of the invention, too high a temperature increase than Result of ignition retardation to avoid and still allow a torque reduction.
Vorteile der ErfindungAdvantages of invention
Die Aufgabe der Erfindung wird dadurch gelöst, dass bei Überschreitung einer vorbestimmten Grenztemperatur des Abgases und/oder eines motornahe im Abgasstrang eingesetzten Bauteils und gleichzeitiger Zündwinkelspätverstellung das Luftverhältnis Lambda des Kraftstoff-Luft-Gemischs in Richtung fett verschoben wird. Durch den höheren zur Verdampfung des Kraftstoffs erforderlichen Energiebedarf wird das Abgas gekühlt und die Temperatur sinkt. Die Anreicherung des Gemischs kann dabei gegebenenfalls in mehreren Stufen erfolgen, so dass der Kraftstoff-Mehrverbrauch unter Beachtung des Kühlungsbedarfs optimiert werden kann.The The object of the invention is achieved in that when exceeded a predetermined limit temperature of the exhaust gas and / or a close-to-the-engine used in the exhaust system and simultaneous Zündwinkelspätverstellung the air ratio Lambda of the fuel-air mixture shifted in the direction of rich becomes. By the higher required to vaporize the fuel required energy the exhaust gas cooled and the temperature drops. The enrichment of the mixture can optionally take place in several stages, so that the fuel extra consumption taking into account the cooling requirements can be optimized.
Ein Schutz der am stärksten von einer thermischen Überlastung betroffenen Bauelemente wird erreicht, indem die Bauteiltemperatur einer Einrichtung zur Erhöhung eines Ladedrucks einer Zuluft der Brennkraftmaschine und/oder einer Vorrichtung zur Abgasreinigung als Grenztemperaturen berücksichtigt werden.A protection of the most affected by a thermal overload components is achieved by the component temperature of a device for increasing a boost pressure of a supply air of the internal combustion engine and / or a device for Emission control can be considered as limit temperatures.
Eine Ausführungsform mit besonders zuverlässiger Überwachung sieht vor, dass die Abgastemperatur und/oder die Bauteiltemperatur gemessen werden. In vielen Brennkraftmaschinen sind Temperatursensoren an den zur Durchführung des erfindungsgemäßen Verfahrens erforderlichen Stellen bereits vorhanden, so dass kein zusätzlicher Aufwand erforderlich ist. Es müssen in einer Motorsteuerung vorhandene Informationen lediglich nach den zusätzlichen Kriterien bewertet werden.A embodiment with particularly reliable monitoring provides that the exhaust gas temperature and / or the component temperature be measured. In many internal combustion engines are temperature sensors to carry out the method according to the invention required places already in place, so no additional Effort is required. To have to in an engine control information available only after the additional Criteria are evaluated.
Werden die Abgastemperatur und/oder die Bauteiltemperatur modelliert, können Temperatursensoren entfallen und insbesondere auch Temperaturverläufe erkannt werden, die eine Tendenz zu kritischen Werten erkennen lassen. In diesem Fall kann frühzeitig einer unerwünschten Temperaturerhöhung entgegengewirkt werden.Become modeled the exhaust gas temperature and / or the component temperature, temperature sensors omitted and in particular also temperature profiles are recognized, the one Tendency to recognize critical values. In this case can be early an undesirable Temperature increase counteracted become.
Wird das Verfahrens nach einem der vorhergehenden Ansprüche zum Betrieb einer Steuerung einer Brennkraftmaschine in einem Fahrzeug angewendet, das ein automatisiertes Schaltgetriebe aufweist. kann erreicht werden, dass zum einen Schaltvorgänge mit geringen Momentensprüngen erfolgen und zum anderen unerwünscht hohe Temperaturen von motornahe in der Abgasanlage eingebauten Einrichtungen sicher verhindert werden.Becomes the method according to any one of the preceding claims for Operation of a control of an internal combustion engine in a vehicle applied, which has an automated transmission. can be achieved that on the one hand switching operations with small momentary jumps done and to the other undesirable high temperatures of near-engine equipment installed in the exhaust system safely prevented.
Zeichnungdrawing
Die Erfindung wird im Folgenden anhand eines in der Figur dargestellten Ausführungsbeispiels näher erläutert. Es zeigt:The Invention will be described below with reference to one shown in the figure Embodiment explained in more detail. It shows:
Beschreibung des Ausführungsbeispielsdescription of the embodiment
Claims (5)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610003488 DE102006003488A1 (en) | 2006-01-25 | 2006-01-25 | Operating method for controller for use in internal combustion engine, involves supplying air-fuel mixture with air ratio, production of exhaust gas with exhaust gas temperature and adjustment of ignition angle based on torque requirement |
ITMI20070051 ITMI20070051A1 (en) | 2006-01-25 | 2007-01-16 | PROCEDURE FOR OPERATING AN INTERNAL COMBUSTION CONTROL SYSTEM |
FR0752787A FR2896543B1 (en) | 2006-01-25 | 2007-01-22 | METHOD FOR MANAGING INTERNAL COMBUSTION ENGINE CONTROL. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200610003488 DE102006003488A1 (en) | 2006-01-25 | 2006-01-25 | Operating method for controller for use in internal combustion engine, involves supplying air-fuel mixture with air ratio, production of exhaust gas with exhaust gas temperature and adjustment of ignition angle based on torque requirement |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102006003488A1 true DE102006003488A1 (en) | 2007-07-26 |
Family
ID=38219775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200610003488 Ceased DE102006003488A1 (en) | 2006-01-25 | 2006-01-25 | Operating method for controller for use in internal combustion engine, involves supplying air-fuel mixture with air ratio, production of exhaust gas with exhaust gas temperature and adjustment of ignition angle based on torque requirement |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE102006003488A1 (en) |
FR (1) | FR2896543B1 (en) |
IT (1) | ITMI20070051A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008028354A1 (en) * | 2008-06-13 | 2009-12-17 | GM Global Technology Operations, Inc., Detroit | Device for reducing exhaust gas temperature of motor vehicle engine, has temperature sensor arranged in exhaust gas system, where temperature sensor is connected with engine control unit |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62241738A (en) * | 1986-04-14 | 1987-10-22 | Toyota Motor Corp | Integral controller for automatic transmission and engine |
JP2524246B2 (en) * | 1990-06-13 | 1996-08-14 | 本田技研工業株式会社 | Drive wheel slip control device |
DE10110500A1 (en) * | 2001-02-28 | 2002-10-02 | Volkswagen Ag | Process for temperature control of a catalyst system |
FR2838779B1 (en) * | 2002-04-22 | 2004-09-03 | Siemens Vdo Automotive | METHOD FOR CONTROLLING THE TORQUE OF AN INTERNAL COMBUSTION ENGINE |
-
2006
- 2006-01-25 DE DE200610003488 patent/DE102006003488A1/en not_active Ceased
-
2007
- 2007-01-16 IT ITMI20070051 patent/ITMI20070051A1/en unknown
- 2007-01-22 FR FR0752787A patent/FR2896543B1/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008028354A1 (en) * | 2008-06-13 | 2009-12-17 | GM Global Technology Operations, Inc., Detroit | Device for reducing exhaust gas temperature of motor vehicle engine, has temperature sensor arranged in exhaust gas system, where temperature sensor is connected with engine control unit |
Also Published As
Publication number | Publication date |
---|---|
FR2896543B1 (en) | 2016-09-30 |
FR2896543A1 (en) | 2007-07-27 |
ITMI20070051A1 (en) | 2007-07-26 |
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R012 | Request for examination validly filed |
Effective date: 20121011 |
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R016 | Response to examination communication | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |