DE102008049020A1 - Electrically adjustable waste gate valve position adjusting method for internal-combustion engine of motor vehicle, involves adjusting position of valve depending on load requirement of engine and independent of temperature of engine - Google Patents
Electrically adjustable waste gate valve position adjusting method for internal-combustion engine of motor vehicle, involves adjusting position of valve depending on load requirement of engine and independent of temperature of engine Download PDFInfo
- Publication number
- DE102008049020A1 DE102008049020A1 DE102008049020A DE102008049020A DE102008049020A1 DE 102008049020 A1 DE102008049020 A1 DE 102008049020A1 DE 102008049020 A DE102008049020 A DE 102008049020A DE 102008049020 A DE102008049020 A DE 102008049020A DE 102008049020 A1 DE102008049020 A1 DE 102008049020A1
- Authority
- DE
- Germany
- Prior art keywords
- temperature
- engine
- combustion engine
- internal combustion
- wastegate valve
- 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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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
- F02B37/12—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
- 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
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/021—Engine temperature
- F02D2200/022—Estimation of engine temperature
-
- 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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Einstellen einer Stellung eines Wastegateventils in einem Bypasskanal einer Turbine eines Abgasturboladers einer Brennkraftmaschine, insbesondere eines Kraftfahrzeugs, wobei die Stellung des Wastegateventils in Abhängigkeit von einer Lastanforderung an die Brennkraftmaschine eingestellt wird, gemäß dem Oberbegriff des Patentanspruchs 1.The The invention relates to a method for adjusting a position of a Wastegateventils in a bypass duct of a turbine of an exhaust gas turbocharger an internal combustion engine, in particular a motor vehicle, wherein the position of the wastegate valve in response to a Load request is set to the internal combustion engine, according to the preamble of claim 1
Bei
bisherigen pneumatischen Stellern für das Wastegateventil
kann dieses nicht unabhängig vom Betriebsdruck gestellt
werden. In der
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der o. g. Art hinsichtlich Kraftstoffverbrauch und Schadstoffemissionen zu verbessern.Of the Invention is based on the object, a method of o. G. kind in terms of fuel consumption and pollutant emissions.
Diese Aufgabe wird erfindungsgemäß durch ein Verfahren der o. g. Art mit den in Anspruch 1 gekennzeichneten Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den weiteren Ansprüchen beschrieben.These The object is achieved by a method the o. g. Art solved with the features characterized in claim 1. Advantageous embodiments of the invention are in the other Claims described.
Dazu ist es bei einem Verfahren der o. g. Art erfindungsgemäß vorgesehen, dass die Stellung des Wastegateventils zusätzlich in Abhängigkeit von einer Temperatur der Brennkraftmaschine eingestellt wird.To it is in a method of o. g. Art provided according to the invention, that the position of the wastegate valve in addition depending is set by a temperature of the internal combustion engine.
Dies hat den Vorteil, dass die Stellung des Wastegateventils auf einfache Weise noch besser auf den momentanen Betriebszustand der Brennkraftmaschine abgestimmt werden kann.This has the advantage that the position of the wastegate valve to simple Way even better on the current operating condition of the internal combustion engine can be coordinated.
Die Temperatur ist beispielsweise eine Kühlwassertemperatur der Brennkraftmaschine oder eine Motoröltemperatur der Brennkraftmaschine.The Temperature is, for example, a cooling water temperature the internal combustion engine or an engine oil temperature of Internal combustion engine.
In einer bevorzugten Ausführungsform wird die Stellung des Wastegateventils zusätzlich in Abhängigkeit von einer Temperatur der Brennkraftmaschine ausschließlich unterhalb eines vorbestimmten Temperaturwertes eingestellt.In In a preferred embodiment, the position of the Wastegateventils additionally depending on a temperature of the internal combustion engine exclusively set below a predetermined temperature value.
Dadurch, dass unterhalb einer vorbestimmten Lastanforderung an die Brennkraftmaschine das Wastegateventil offen gehalten wird, wenn die Temperatur einen Wert unterhalb eines vorbestimmten Temperaturwertes hat und das Wastegateventil geschlossen oder wenigstens teilweise geschlossen gehalten wird, wenn die Temperatur einen Wert oberhalb eines vorbestimmten Temperaturwertes hat, wird im kalten Betriebszustand der Brennkraftmaschine weniger Grundladedruck vor einer Drosselklappe erzeugt, der nicht für diesen Betriebspunkt als Fahrerwunsch benötigt wird. Hierdurch fällt weniger Ladungswechselarbeit an und es wird eine Kraftstoffersparnis sowie ein geringerer Schadstoffausstoß erzielt.Thereby, that below a predetermined load request to the internal combustion engine the wastegate valve is kept open when the temperature is a Has value below a predetermined temperature value and that Wastegateventil closed or kept at least partially closed when the temperature exceeds a predetermined value Temperature value has, is in the cold operating condition of the internal combustion engine less basic boost pressure generated before a throttle that does not needed for this operating point as a driver's request becomes. As a result, less charge switching work and It is achieved a fuel economy and a lower pollutant emissions.
Beispielsweise liegt der vorbestimmte Temperaturwert in einem Bereich von 50°C bis 70°C, vorzugsweise 55°C bis 65°C, insbesondere beträgt er 60°C.For example the predetermined temperature value is in a range of 50 ° C up to 70 ° C, preferably 55 ° C to 65 ° C, in particular, it is 60 ° C.
Die Erfindung wird im Folgenden anhand der Zeichnung näher erläutert. Diese zeigt inThe The invention will be explained in more detail below with reference to the drawing explained. This shows in
Die
Erfindung wird nachfolgend unter Bezugnahme auf die
Der Zweck der temperaturabhängigen Steuerung des Wastegateventils ist eine Verbrauchssenkung während des Warmlaufs der Brennkraftmaschine bis zum Erreichen der Betriebstemperatur in Verbindung mit einer Spontaneität, vergleichbar derer im warmen Bereich der Brennkraftmaschine.Of the Purpose of the temperature-dependent control of the wastegate valve is a reduction in consumption during the warm-up of the internal combustion engine until reaching the operating temperature in conjunction with a Spontaneity, comparable to those in the warm area of Internal combustion engine.
Wie
insbesondere aus
Bei
einem bekannten pneumatischen Wastegate schließt die Wastegateklappe
mit Federkraft, wenn kein Ladedruck vorhanden ist. Es findet eine Korrektur
des Sollwertes (Wastegateklappenstellung) statt, d. h. nicht die
Füllung RL sondern nur der Wastegateklappenwinkel wird
in Abhängigkeit von einem Fahrerwunschmoment begrenzt.
Der Verbrennungsmotor muss in beiden Betriebsbereichen (warm/kalt)
eine Ladungswechselarbeit leisten. Im warmen Zustand bzw. bei angestellter
Wastegateklappe derart, dass bei geringer Fahrerwunschmomentenanforderung
der Grundladedruck über Drosselklappe
Im
kalten Betriebsbereich der Brennkraftmaschine, in dem das Ansprechverhalten
des Abgasturboladers noch nicht gegeben ist (vgl.
Das
Wastegateventil wird temperaturabhängig und abhängig
vom Fahrerwunschmoment aus Spontaneitätsgründen
angestellt (bei Brennkraftmaschine mit Betriebstemperatur (warm))
oder möglichst lange und weit offen gehalten (bei Brennkraftmaschine
unterhalb Betriebstemperatur (kalt)). Darüber hinaus greifen
die bisherigen Wastegateventil-Steuerungen ein. Der Druck, der von
der Brennkraftmaschine nicht erzeugt werden muss, spart etwa 1–3%
Kraftstoff und vermindert somit auch den CO2-Ausstoß.
Die Entscheidung darüber, ob ein kalter oder warmer Betriebsbereich
der Brennkraftmaschine vorliegt, erfolgt durch die Messung der Temperatur
des Motors (Wassertemperatur oder Öltemperatur). Im Endeffekt
wird weniger Druck als Grundladedruck vor der Drosselklappe
Bei
dem eWG ist der Grundladedruck der Druck, der sich bei voll geöffneter
Wastegateklappe hinter dem Verdichter des Abgasturboladers
Über eine Software lässt sich die Brennkraftmaschine den Fahrerwünschen anpassen, d. h. beispielsweise an einen verbrauchsorientierten Fahrer oder einen Fahrer, der gleich die volle Leistung der Maschine in Anspruch nehmen möchte.about Software allows the engine to meet the driver's wishes adjust, d. H. For example, to a consumption-oriented driver or a driver who is about to use the full power of the machine would like to take.
Bei
der zweiten Ausführungsform gemäß
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES 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 The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102005023260 A1 [0002] - DE 102005023260 A1 [0002]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008049020A DE102008049020A1 (en) | 2008-09-25 | 2008-09-25 | Electrically adjustable waste gate valve position adjusting method for internal-combustion engine of motor vehicle, involves adjusting position of valve depending on load requirement of engine and independent of temperature of engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008049020A DE102008049020A1 (en) | 2008-09-25 | 2008-09-25 | Electrically adjustable waste gate valve position adjusting method for internal-combustion engine of motor vehicle, involves adjusting position of valve depending on load requirement of engine and independent of temperature of engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008049020A1 true DE102008049020A1 (en) | 2010-04-01 |
Family
ID=41719776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008049020A Withdrawn DE102008049020A1 (en) | 2008-09-25 | 2008-09-25 | Electrically adjustable waste gate valve position adjusting method for internal-combustion engine of motor vehicle, involves adjusting position of valve depending on load requirement of engine and independent of temperature of engine |
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DE (1) | DE102008049020A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2961264A1 (en) * | 2010-06-09 | 2011-12-16 | Peugeot Citroen Automobiles Sa | Method for controlling combustion of thermal engine to determine instantaneous temperature of water of engine according to request and operating conditions of engine, involves applying instantaneous adjustments to engine in real-time |
CN104343529A (en) * | 2013-07-26 | 2015-02-11 | 三菱自动车工业株式会社 | Control apparatus of engine |
US11098640B2 (en) | 2017-08-03 | 2021-08-24 | Volkswagen Aktiengesellschaft | Method for determining a basic boost pressure of a gas conducting system of an internal combustion engine, and engine controller for carrying out a method of this type |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2650033C2 (en) * | 1976-10-30 | 1984-12-20 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Device for regulating the charge air pressure in an internal combustion engine equipped with an exhaust gas turbocharger |
DE3246483C2 (en) * | 1981-12-30 | 1985-10-17 | Aisin Seiki K.K., Kariya, Aichi | Control device for a turbine bypass valve of an exhaust gas-charged internal combustion engine |
DE3437497C2 (en) * | 1983-10-13 | 1990-02-08 | Honda Giken Kogyo K.K., Tokio/Tokyo, Jp | |
DE4002081C2 (en) * | 1990-01-25 | 1995-03-09 | Opel Adam Ag | Method for controlling a bypass of a turbocharger and diesel internal combustion engine for carrying out this method |
DE19620778C1 (en) * | 1996-05-23 | 1997-08-21 | Daimler Benz Ag | Method of pressure control for intake port of vehicle IC engine operating with turbocharger |
DE102004009791A1 (en) * | 2004-02-28 | 2005-09-22 | Daimlerchrysler Ag | A method for accelerated heating of a cleaning device in the exhaust system of an internal combustion engine and internal combustion engine |
DE102005023260A1 (en) | 2005-05-20 | 2006-11-23 | Daimlerchrysler Ag | Regulating process for exhaust gas supercharger involves using quotient from air mass flow and compression ratio at compressor as guide value |
EP1741895A1 (en) * | 2005-07-05 | 2007-01-10 | Magneti Marelli Powertrain S.p.A. | A method and device for controlling the speed of rotation of a turbosupercharger in an internal-combustion engine |
-
2008
- 2008-09-25 DE DE102008049020A patent/DE102008049020A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2650033C2 (en) * | 1976-10-30 | 1984-12-20 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Device for regulating the charge air pressure in an internal combustion engine equipped with an exhaust gas turbocharger |
DE3246483C2 (en) * | 1981-12-30 | 1985-10-17 | Aisin Seiki K.K., Kariya, Aichi | Control device for a turbine bypass valve of an exhaust gas-charged internal combustion engine |
DE3437497C2 (en) * | 1983-10-13 | 1990-02-08 | Honda Giken Kogyo K.K., Tokio/Tokyo, Jp | |
DE4002081C2 (en) * | 1990-01-25 | 1995-03-09 | Opel Adam Ag | Method for controlling a bypass of a turbocharger and diesel internal combustion engine for carrying out this method |
DE19620778C1 (en) * | 1996-05-23 | 1997-08-21 | Daimler Benz Ag | Method of pressure control for intake port of vehicle IC engine operating with turbocharger |
DE102004009791A1 (en) * | 2004-02-28 | 2005-09-22 | Daimlerchrysler Ag | A method for accelerated heating of a cleaning device in the exhaust system of an internal combustion engine and internal combustion engine |
DE102005023260A1 (en) | 2005-05-20 | 2006-11-23 | Daimlerchrysler Ag | Regulating process for exhaust gas supercharger involves using quotient from air mass flow and compression ratio at compressor as guide value |
EP1741895A1 (en) * | 2005-07-05 | 2007-01-10 | Magneti Marelli Powertrain S.p.A. | A method and device for controlling the speed of rotation of a turbosupercharger in an internal-combustion engine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2961264A1 (en) * | 2010-06-09 | 2011-12-16 | Peugeot Citroen Automobiles Sa | Method for controlling combustion of thermal engine to determine instantaneous temperature of water of engine according to request and operating conditions of engine, involves applying instantaneous adjustments to engine in real-time |
CN104343529A (en) * | 2013-07-26 | 2015-02-11 | 三菱自动车工业株式会社 | Control apparatus of engine |
CN104343529B (en) * | 2013-07-26 | 2017-04-12 | 三菱自动车工业株式会社 | Control apparatus of engine |
US11098640B2 (en) | 2017-08-03 | 2021-08-24 | Volkswagen Aktiengesellschaft | Method for determining a basic boost pressure of a gas conducting system of an internal combustion engine, and engine controller for carrying out a method of this type |
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Legal Events
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R005 | Application deemed withdrawn due to failure to request examination |