DE102004029857A1 - Driving method for turbocharger in internal combustion engine involves analyzing sensory signal to detect pumping limit of compressor - Google Patents
Driving method for turbocharger in internal combustion engine involves analyzing sensory signal to detect pumping limit of compressor Download PDFInfo
- Publication number
- DE102004029857A1 DE102004029857A1 DE102004029857A DE102004029857A DE102004029857A1 DE 102004029857 A1 DE102004029857 A1 DE 102004029857A1 DE 102004029857 A DE102004029857 A DE 102004029857A DE 102004029857 A DE102004029857 A DE 102004029857A DE 102004029857 A1 DE102004029857 A1 DE 102004029857A1
- Authority
- DE
- Germany
- Prior art keywords
- turbocharger
- signal
- internal combustion
- combustion engine
- compressor
- 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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/007—Engines characterised by provision of pumps driven at least for part of the time by exhaust with exhaust-driven pumps arranged in parallel, e.g. at least one pump supplying alternatively
-
- 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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
-
- 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
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/16—Other safety measures for, or other control of, pumps
-
- 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
-
- 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
- F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
- F01N13/107—More than one exhaust manifold or exhaust collector
-
- 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)
- Supercharger (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Betreiben eines Turboladers sowie eine Anordnung zum Betreiben eines Turboladers gemäß den Oberbegriffen des Patentanspruchs 1 und des Patentanspruchs 7.The The invention relates to a method for operating a turbocharger and an arrangement for operating a turbocharger according to the preambles of patent claim 1 and claim 7.
Nahe
der Pumpgrenze eines Verdichters ist dessen Wirkungsgrad bekanntermaßen ungünstig. Aus
der
Bei hochaufgeladenen Motoren, beispielsweise Dieselmotoren, sind die Turbolader im unteren Drehzahlbereich üblicherweise dicht an der Pumpgrenze des Verdichters ausgelegt. Schon bei leichten Abweichungen von einem Normalbetrieb, z.B. durch verschmutzte Luftfilter, kann es zum Strömungsabriss am Verdichter kommen. Im folgenden instabilen Betrieb kann der Turbolader und auch der Motor beschädigt werden.at supercharged engines, such as diesel engines, are the Turbocharger in the lower speed range usually close to the surge line designed the compressor. Even with slight deviations from one Normal operation, e.g. due to dirty air filters, it can cause stall come on the compressor. In the following unstable operation, the turbocharger and also the engine is damaged become.
Aufgabe der vorliegenden Erfindung ist es, ein Verfahren und eine Anordnung zum Betreiben eines Turboladers anzugeben, mit dem die Betriebssicherheit des Turboladers bei Erreichen der Pumpgrenze des Turboladers erhöht ist.task It is the object of the present invention to provide a method and an arrangement to indicate the operation of a turbocharger, with the reliability of the turbocharger is increased upon reaching the surge line of the turbocharger.
Die Aufgabe wird erfindungsgemäß mit den Merkmalen des Patentanspruchs 1 und des Patentanspruchs 7 gelöst.The Task is according to the invention with the features of claim 1 and claim 7 solved.
Bei dem erfindungsgemäßen Verfahren zum Betreiben eines Turboladers einer Brennkraftmaschine wird ein Signal eines Luftmassensensors im Ansaugrohr der Brennkraftmaschine zum Erkennen einer Pumpgrenze eines Verdichters des Turboladers ausgewertet. Es ist kein zusätzlicher Sensor notwendig, sondern es kann der übliche Luftmassensensor zur Fehlerdetektion verwendet werden. Ferner entfällt eine aufwändige Fehlerdetektionsschaltung, da eine einfache Modifikation eines üblichen Motorsteuergeräts ausreichend ist, um den Fehlerzustand zu erkennen und geeignete Maßnahmen zum Schutz des Turboladers einzuleiten. Die Fehlererkennung ist schnell und sicher. Eine unerwünschte Beeinträchtigung des Laufverhaltens der Brennkraftmaschine wie Ruckeln, laute Geräusche, Durchschlagen der Motorlagerung durch starken Lastwechsel, werden durch Schutzmaßnahmen sicher vermieden und Schäden am Turbolader und auch an der Brennkraftmaschine verhindert.at the method according to the invention for operating a turbocharger of an internal combustion engine is a Signal of an air mass sensor in the intake pipe of the internal combustion engine evaluated to detect a surge line of a compressor of the turbocharger. It is not an additional one Sensor necessary, but it can be the usual air mass sensor for Error detection can be used. Furthermore, a complex error detection circuit is eliminated, as a simple modification of a conventional engine control unit is sufficient is to detect the fault condition and appropriate action to protect the turbocharger. Error detection is fast and sure. An undesirable impairment the running behavior of the internal combustion engine such as jerking, loud noises, strike through The engine storage due to heavy load changes, are protected by protective measures safely avoided and damage on the turbocharger and also on the internal combustion engine prevented.
Vorteilhafte Weiterbildungen der Erfindung sind in Unteransprüchen angegeben.advantageous Further developments of the invention are specified in subclaims.
Vorzugsweise wird als Pumpgrenze des Verdichters bewertet, wenn ein Oszillieren des Signals des Luftmassensensors um einen Mittelwert beobachtet wird, das größer ist als ein übliches Rauschen des Signals. Bei einem Einsetzen des Verdichterpumpens, d.h. bei Erreichen oder Unterschreiten der Pumpgrenze gibt es wegen der zusammenbrechenden und sich wieder aufbauenden Luftsäule im Ansaugrohr der Brennkraftmaschine starke Änderungen im Signal des üblichen Luftmassensensors. Vorzugsweise ist der Luftmassensensor ein so genannter Heißfilm-Luftmassensensor. Mit einer entsprechenden Ergänzung einer Software des Motorsteuergeräts kann dieser Zustand sicher vom Motorsteuergerät erkannt werden. Günstig wird dabei als Fehlerzustand erkannt, wenn die Amplitude des Signals um mindestens 50% größer ist als das Rauschen des Signals, bevorzugt größer als 100% des Rauschens.Preferably is rated as the pumping limit of the compressor when oscillating the signal of the air mass sensor is observed around an average value that's bigger as a usual Noise of the signal. At an onset of compressor pumping, i.e. when reaching or falling below the surge limit, there are the collapsing and reconstructing column of air in the intake manifold the internal combustion engine changes greatly in the signal of the usual Air mass sensor. Preferably, the air mass sensor is one called hot film air mass sensor. With an appropriate supplement Software of the engine control unit, this state can be safe from the engine control unit be recognized. Cheap is recognized as an error condition when the amplitude of the signal is at least 50% larger as the noise of the signal, preferably greater than 100% of the noise.
Es ist vorteilhaft, bei Erkennen der Pumpgrenze Schutzmaßnahmen zum Schutz des Turboladers einzuleiten. Ein günstige Maßnahme besteht darin, den Ladedruck des Turboladers zu reduzieren, bis wieder ein normaler Betrieb möglich ist. Alternativ oder zusätzlich kann eine Einspritzmenge von Kraftstoff in die Brennkraftmaschine reduziert werden. Eine Überlastung des Turboladers, insbesondere seiner Wellenlagerung, wird vermieden.It is advantageous in detecting the surge limit protective measures to protect the turbocharger. A favorable measure is the boost pressure reduce the turbocharger until normal operation is possible again. Alternatively or in addition can inject an amount of fuel into the internal combustion engine be reduced. An overload the turbocharger, in particular its shaft bearing is avoided.
Die erfindungsgemäße Vorrichtung zur Durchführung des Verfahrens zum Betreiben eines Turboladers einer Brennkraftmaschine sieht vor, dass ein Signal eines Luftmassensensors im Ansaugrohr der Brennkraftmaschine zum Erkennen einer Pumpgrenze eines Verdichters des Turboladers auswertbar ist. Bevorzugt ist ein Motorsteuergerät zur Erkennung des Fehlerzustands durch Beobachten des Signals des Luftmassensensors ausgelegt. Vorzugsweise ist ein Mittel vorgesehen, um bei Erreichen oder Unterschreiten der Pumpgrenze einen Ladedruck des Turboladers und/oder eine Einspritzmenge von Kraftstoff in die Brennkraftmaschine zu reduzieren. Es sind keine zusätzlichen Bauteile nötig, sondern es kann mit üblicherweise bereits vorhandenen Komponenten, nämlich einem Luftmassensensor, der bei einer Lambdaregelung obligatorisch ist und einem Motorsteuergerät, das geeignet angepasst ist, insbesondere dessen Software an die Messaufgabe adaptiert ist, ein sicherer Betrieb des Turboladers auch an der Pumpgrenze ermöglicht werden.The inventive device to carry out the method of operating a turbocharger of an internal combustion engine provides that a signal of an air mass sensor in the intake manifold the internal combustion engine for detecting a surge line of a compressor the turbocharger is evaluable. Preferred is an engine control unit for detection the fault condition by observing the signal of the air mass sensor designed. Preferably, a means is provided for upon reaching or below the pumping limit a boost pressure of the turbocharger and / or an injection amount of fuel in the internal combustion engine to reduce. There are no additional ones Components needed, but it can be done with usually already existing components, namely an air mass sensor, which is mandatory in a lambda control and an engine control unit, the appropriate is adapted, in particular its software adapted to the measurement task is a safe operation of the turbocharger also at the surge line allows become.
Weitere Ausbildungsformen und Aspekte der Erfindung werden unabhängig von einer Zusammenfassung in den Patentansprüchen ohne Beschränkung der Allgemeinheit im Folgenden anhand einer Zeichnung näher erläutert. Dabei zeigenFurther Embodiments and aspects of the invention will be independent of a summary in the claims without limitation of the Generality explained in more detail below with reference to a drawing. there demonstrate
Eine
bevorzugte Anordnung zur Durchführung
des Verfahrens ist aus
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004029857A DE102004029857A1 (en) | 2004-06-19 | 2004-06-19 | Driving method for turbocharger in internal combustion engine involves analyzing sensory signal to detect pumping limit of compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004029857A DE102004029857A1 (en) | 2004-06-19 | 2004-06-19 | Driving method for turbocharger in internal combustion engine involves analyzing sensory signal to detect pumping limit of compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004029857A1 true DE102004029857A1 (en) | 2006-01-05 |
Family
ID=35483374
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102004029857A Ceased DE102004029857A1 (en) | 2004-06-19 | 2004-06-19 | Driving method for turbocharger in internal combustion engine involves analyzing sensory signal to detect pumping limit of compressor |
Country Status (1)
Country | Link |
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DE (1) | DE102004029857A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007144274A1 (en) * | 2006-06-13 | 2007-12-21 | Continental Automotive Gmbh | Method and device for monitoring an exhaust-gas turbocharger |
-
2004
- 2004-06-19 DE DE102004029857A patent/DE102004029857A1/en not_active Ceased
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007144274A1 (en) * | 2006-06-13 | 2007-12-21 | Continental Automotive Gmbh | Method and device for monitoring an exhaust-gas turbocharger |
JP2009540207A (en) * | 2006-06-13 | 2009-11-19 | コンチネンタル オートモーティヴ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Exhaust gas turbocharger monitoring device and monitoring method |
US8291752B2 (en) | 2006-06-13 | 2012-10-23 | Continental Automotive Gmbh | Method and device for monitoring an exhaust-gas turbocharger |
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---|---|---|---|
8110 | Request for examination paragraph 44 | ||
R012 | Request for examination validly filed |
Effective date: 20110205 |
|
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |