DE102018207843A1 - Method for operating an internal combustion engine - Google Patents
Method for operating an internal combustion engine Download PDFInfo
- Publication number
- DE102018207843A1 DE102018207843A1 DE102018207843.2A DE102018207843A DE102018207843A1 DE 102018207843 A1 DE102018207843 A1 DE 102018207843A1 DE 102018207843 A DE102018207843 A DE 102018207843A DE 102018207843 A1 DE102018207843 A1 DE 102018207843A1
- Authority
- DE
- Germany
- Prior art keywords
- internal combustion
- combustion engine
- exhaust gas
- operating
- 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.)
- Pending
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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
- 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
- F02B37/005—Exhaust driven pumps being combined with an exhaust driven auxiliary apparatus, e.g. a ventilator
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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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
- F02B37/10—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump
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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
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/02—Drives of pumps; Varying pump drive gear ratio
- F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
- F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0261—Surge control by varying driving speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
Abstract
Verfahren zum Betreiben einer Brennkraftmaschine mit einem Abgasturbolader, dessen Verdichterrad und/oder Turbinenrad von einer elektrischen Maschine antreibbar ist,gekennzeichnet durch folgenden Verfahrensschritt:- Bei einem Lastabwurf der Brennkraftmaschine Betreiben der elektrischen Maschine als ein Generator.Mit der erfindungsgemäßen Ausgestaltung kann ein Schubumluftventil eingespart werden.Method for operating an internal combustion engine having an exhaust gas turbocharger whose compressor wheel and / or turbine wheel can be driven by an electric machine, characterized by the following method step: - In a load shedding of the internal combustion engine operating the electric machine as a generator. With the embodiment according to the invention, a diverter valve can be saved ,
Description
Die Erfindung betrifft ein Verfahren zum Betreiben einer Brennkraftmaschine mit einem Abgasturbolader mit den Merkmalen aus dem Oberbegriff des Patentanspruchs 1.The invention relates to a method for operating an internal combustion engine with an exhaust gas turbocharger having the features of the preamble of patent claim 1.
Aus der Deutschen Offenlegungsschrift
Weiter ist aus der Deutschen Offenlegungsschrift
Weiter sind aus der Deutschen Offenlegungsschrift
Nachteilig an all diesen bekannten Abgasturboladern ist bei einem Lastabwurf, d. h. wenn spontan eine Gaswegnahme stattfindet, dass der Verdichter seine Pumpgrenze erreicht.A disadvantage of all these known exhaust gas turbochargers is in a load shedding, d. H. if a gas take-off takes place spontaneously, that the compressor reaches its surge limit.
Damit der Verdichter eines Abgasturboladers nicht die Pumpgrenze erreicht, wird in der Deutschen Offenlegungsschrift
Nachteilig an dieser Lösung sind jedoch, der erhöhte Bauteilaufwand für die Bypassleitung und das Schubumluftventil und die dafür anzusetzenden Bauteil- und Montagekosten.A disadvantage of this solution, however, are the increased component costs for the bypass line and the diverter valve and to be applied for this component and installation costs.
Aufgabe der vorliegenden Erfindung ist es, eine Maßnahme aufzuzeigen, um die oben genannten Nachteile zu vermeiden.Object of the present invention is to show a measure to avoid the above-mentioned disadvantages.
Diese Aufgabe wird durch das Verfahren gemäß Patentanspruch 1 gelöst.This object is achieved by the method according to claim 1.
Durch das erfindungsgemäße Verfahren erfolgt bei einem Lastabwurf, einer spontanen Gaswegnahme, ein Abbremsen des Verdichterrades durch die E-Maschine, sodass der Verdichter in vorteilhafter Weise abgebremst wird und nicht die Pumpgrenze erreicht. Somit kann auf einen Verdichterbypass und ein, beispielsweise in diesem angeordnetes Schubumluftventil verzichtet werden. Dies spart Herstell- und Montagekosten. Gleichzeitig dient dieses Verfahren in vorteilhafter Weise zusätzlich der elektrischen Energiegewinnung.By the method according to the invention takes place at a load shedding, a spontaneous Gaswegnahme, a deceleration of the compressor wheel by the electric motor, so that the compressor is braked in an advantageous manner and does not reach the surge limit. Thus it can be dispensed with a compressor bypass and, for example, arranged in this diverter valve. This saves manufacturing and assembly costs. At the same time, this method additionally advantageously serves to generate electrical energy.
Im Folgenden ist die Erfindung anhand von zwei Figuren näher erläutert.
-
1 zeigt einen schematischen Schnitt durch einen Abgasturbolader. -
2 zeigt ein typisches Verdichtungskennfeld für einen Abgasturbolader.
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1 shows a schematic section through an exhaust gas turbocharger. -
2 shows a typical compression map for an exhaust gas turbocharger.
Auch wenn es sich bei diesem beispielhaften Abgasturbolader
Es ist wie üblich das Druckverhältnis über einer Y-Achse dargestellt. Über einer X-Achse ist ein durch den Verdichter durchgesetzter Volumenstrom [m3/h], bzw. im vorliegenden Ausführungsbeispiel ein Massenstrom [kg/s] dargestellt. Das Druckverhältnis ist durch gestrichelte Linien in dem Verdichtungskennfeld dargestellt. Der tatsächlich nutzbare Kennfeldbereich von Verdichtern von Abgasturboladern
Hierbei begrenzt die Pumpgrenze
Auf der anderen Seite des Kennfeldes findet sich die sog. Stopfgrenze
In
Durch das erfindungsgemäße Verfahren, dass bei einem Lastabwurf der Brennkraftmaschine die elektrische Maschine als ein Generator betrieben wird, wird das Verdichterrad
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1.1.
- Abgasturboladerturbocharger
- 2.Second
- Verdichterrad mit WelleCompressor wheel with shaft
- 3.Third
- Turbinenrad mit WelleTurbine wheel with shaft
- 4.4th
- Lagerungstorage
- 5.5th
- Freilauffreewheel
- 6.6th
- Läuferrunner
- 7.7th
- Statorstator
- 8.8th.
- Pumpgrenzesurge line
- 9.9th
- Stopfgrenzechoke
- 10.10th
- max. DrehzahlMax. rotation speed
- 11.11th
- DrehzahlreduzierungSpeed reduction
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 19518317 A1 [0002]DE 19518317 A1 [0002]
- DE 19938624 A1 [0003]DE 19938624 A1 [0003]
- DE 3618449 A1 [0004]DE 3618449 A1 [0004]
- DE 10450014 A1 [0006]DE 10450014 A1 [0006]
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018207843.2A DE102018207843A1 (en) | 2018-05-18 | 2018-05-18 | Method for operating an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018207843.2A DE102018207843A1 (en) | 2018-05-18 | 2018-05-18 | Method for operating an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102018207843A1 true DE102018207843A1 (en) | 2019-11-21 |
Family
ID=68419747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102018207843.2A Pending DE102018207843A1 (en) | 2018-05-18 | 2018-05-18 | Method for operating an internal combustion engine |
Country Status (1)
Country | Link |
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DE (1) | DE102018207843A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021001363A1 (en) | 2021-03-15 | 2022-09-15 | Mercedes-Benz Group AG | Method for operating an internal combustion engine of a motor vehicle, in particular a motor vehicle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3199819A1 (en) * | 2016-01-28 | 2017-08-02 | Aisin Seiki Kabushiki Kaisha | Electric supercharging apparatus and electric supercharging system |
-
2018
- 2018-05-18 DE DE102018207843.2A patent/DE102018207843A1/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3199819A1 (en) * | 2016-01-28 | 2017-08-02 | Aisin Seiki Kabushiki Kaisha | Electric supercharging apparatus and electric supercharging system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021001363A1 (en) | 2021-03-15 | 2022-09-15 | Mercedes-Benz Group AG | Method for operating an internal combustion engine of a motor vehicle, in particular a motor vehicle |
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