DE10140987B4 - Internal combustion engine and diagnostic method for this - Google Patents
Internal combustion engine and diagnostic method for this Download PDFInfo
- Publication number
- DE10140987B4 DE10140987B4 DE2001140987 DE10140987A DE10140987B4 DE 10140987 B4 DE10140987 B4 DE 10140987B4 DE 2001140987 DE2001140987 DE 2001140987 DE 10140987 A DE10140987 A DE 10140987A DE 10140987 B4 DE10140987 B4 DE 10140987B4
- Authority
- DE
- Germany
- Prior art keywords
- crankcase
- fuel
- tank
- combustion engine
- internal combustion
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0438—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a filter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0483—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil using catalysis
Abstract
Brennkraftmaschine, insbesondere eines Kraftfahrzeuges, mit einem Kraftstofftank (20), einem mit diesem verbundenen Aktivkohlebehälter (22), welcher über ein Tankentlüftungsventil (24) mit einem Ansaugrohr (12) verbunden ist, und mit einer Kurbelgehäuseentlüftung (26), dadurch gekennzeichnet, daß die Kurbelgehäuseentlüftung (26) über ein Rückschlagventil (28) mit einer Drossel mit dem Aktivkohlebehälter (22) verbunden ist.Internal combustion engine, in particular of a motor vehicle, comprising a fuel tank (20), an activated charcoal canister (22) connected thereto, which is connected to an intake pipe (12) via a tank vent valve (24), and a crankcase breather (26), characterized in that the crankcase ventilation (26) via a check valve (28) with a throttle to the activated carbon container (22) is connected.
Description
Die Erfindung betrifft eine Brennkraftmaschine, insbesondere eines Kraftfahrzeuges, mit einem Kraftstofftank, einem mit diesem verbundenen Aktivkohlebehälter, welcher über ein Tankentlüftungsventil mit einem Ansaugrohr verbunden ist, und mit einer Kurbelgehäuseentlüftung, gemäß dem Oberbegriff des Anspruchs 1. Die Erfindung betrifft ferner ein Diagnoseverfahren für eine Brennkraftmaschine gemäß dem Oberbegriff des Anspruchs 3.The The invention relates to an internal combustion engine, in particular a motor vehicle, with a fuel tank, an activated charcoal container connected thereto, which has a Tank venting valve with a suction pipe is connected, and with a crankcase ventilation, according to the preamble of Claim 1. The invention further relates to a diagnostic method for one Internal combustion engine according to the preamble of claim 3.
Seit 1994 verlangt die ”CARB” (California Air Resource Board) in den USA ein On Board Diagnosesystem für Kraftfahrzeuge. Dieses System hat die Aufgabe Fehlfunktionen am Fahrzeug, welche zur Überschreitung von Abgasgrenzwerten führen, dem Fahrer anzuzeigen. Daraufhin sind sogenannte ”OBDII-Diagnosen” entstanden, die alle abgasrelevanten Bauteile im Fahrzeug, wie beispielsweise Katalysator, Kraftstoffsystem, Lambdasonde etc., auf Funktion und Plausibilität überwachen. Um die Akzeptanz des OBD-Systems bei den Benutzern zu gewährleisten legt die CARB großes Gewicht auf die Zuverlässigkeit des Systems. Gleichzeitig liegt dies auch im Interesse des Herstellers, da für OBD-Fehler eine 10-jährige Garantie gegeben werden muß, so daß Fehldiagnosen zu erheblichen Kosten, beispielsweise bei staatlich angeordneten Rückrufaktionen, führen können.since In 1994, the "CARB" (California Air Resource Board) in the US an on-board diagnostic system for motor vehicles. This system has the task malfunctions on the vehicle, which to exceed lead to emission limits, to indicate to the driver. As a result, so-called "OBDII diagnoses" have emerged the all exhaust relevant components in the vehicle, such as Catalyst, fuel system, lambda probe etc., on function and Monitor plausibility. To ensure the acceptance of the OBD system among the users puts the CARB big Weight on the reliability of the system. At the same time, this is also in the interest of the manufacturer, for this OBD error a 10-year-old Warranty must be given so that misdiagnoses at considerable cost, for example, at state-ordered Recalls, to lead can.
Derartige
Fehldiagnosen können
sich beispielsweise durch einen unkontrollierten Kraftstoffstrom
aus dem Kurbelgehäuse
in das Saugrohr über
eine Kurbelgehäuseentlüftung ergeben,
wie sie beispielsweise aus der
Die
Die
Der Erfindung liegt die Aufgabe zugrunde, eine Brennkraftmaschine der obengenannten Art sowie ein Diagnoseverfahren für diese bzgl. der Zuverlässigkeit des OBDII-Systems zu verbessern.Of the Invention is the object of an internal combustion engine of above-mentioned type and a diagnostic method for this with respect to the reliability of the OBDII system.
Diese Aufgabe wird erfindungsgemäß durch eine Brennkraftmaschine der o. g. Art mit den in Anspruch 1 gekennzeichneten Merkmalen und durch ein Verfahren der o. g. Art mit den in Anspruch 3 angegebenen Verfahrensschritten gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in dem abhängigen Anspruch angegeben.These The object is achieved by a Internal combustion engine o. G. Type with the characterized in claim 1 Features and by a method of o. G. Kind of claim 3 specified method steps solved. Advantageous embodiments of the invention are in the dependent Claim specified.
Bei einer Brennkraftmaschine der o. g. Art ist es erfindungsgemäß vorgesehen, daß die Kurbelgehäuseentlüftung mit dem Aktivkohlebehälter über ein Rückschlagventil mit einer Drossel verbunden ist.at an internal combustion engine of the o. g. Art it is provided according to the invention, that the Crankcase ventilation with the activated carbon container via a check valve connected to a throttle.
Dies hat den Vorteil, daß ein Kraftstoffstrom aus der Kurbelgehäuseentlüftung mit in die Berechnung der Einspritzmenge einbezogen ist, und auf diese Weise eine Fehlfunktion der OBDII-Diagnose wirksam vermieden ist. Ferner ergibt sich in vorteilhafter Weise eine Pufferung des Kraftstoffdampfes aus der Kurbelgehäuseentlüftung im Aktivkohlebehälter.This has the advantage that a Fuel flow from the crankcase ventilation included in the calculation the injection quantity is involved, and thus a malfunction the OBDII diagnosis is effectively avoided. Furthermore, results in Advantageously, a buffering of the fuel vapor from the crankcase ventilation in Activated charcoal.
Um sicherzustellen, daß sich der Massestrom ausschließlich vom Kurbelgehäuse in Richtung Aktivkohlebehälter bewegt, ist die Kurbelgehäuseentlüftung über ein Rückschlagventil mit dem Aktivkohlebehälter verbunden.Around make sure of yourself the mass flow exclusively from the crankcase towards charcoal canister moved, the crankcase breather is over check valve with the activated carbon container connected.
Zum Begrenzen des auf die Kurbelgehäuseentlüftung wirkenden Unterdrucks aus dem Saugrohr ist die Kurbelgehäuseentlüftung über eine Drossel mit dem Aktivkohlebehälter verbunden.To the Limiting the effect on the crankcase ventilation Vacuum from the intake manifold, the crankcase ventilation is connected via a throttle with the activated charcoal filter.
Um ein Eindringen von Öl in den Aktivkohlebehälter zu verhindern, ist die Kurbelgehäuseentlüftung über einen Öldampf-Filter und/oder Ölabscheider mit dem Aktivkohlebehälter verbunden.Around an intrusion of oil in the activated carbon container To prevent the crankcase ventilation is via an oil vapor filter and / or oil separator with the activated carbon container connected.
Bei einem Verfahren der o. g. Art sind erfindungsgemäß folgende Schritte vorgesehen:
- (a) Schließen der Kurbelgehäuseentlüftung,
- (b) Aktivieren der Tankentlüftung und Spülen des Aktivkohlebehälters bis dessen Kraftstoffbeladung gegen Null geht,
- (c) Öffnen der Kurbelgehäuseentlüftung und Zuführen des Kraftstoffstromes aus dem Kurbelgehäuse in die Tankentlüftung,
- (d) Bestimmen der Kraftstoffmasse aus der Kurbelgehäuseentlüftung aus der Variation des λ-Reglers.
- (a) closing the crankcase breather,
- (b) activating the tank vent and purging the canister until its fuel loading approaches zero,
- (c) opening the crankcase breather and feeding the flow of fuel from the crankcase into the tank breather,
- (d) determining the fuel mass from the regimen Belgehäuseentlüftung from the variation of the λ-regulator.
Dies hat den Vorteil, daß der Kraftstoffgehalt aus der Kurbelgehäuseentlüftung bestimmt werden kann. Hierdurch steht eine Diagnose für den Kraftstoffgehalt im Öl zur Verfügung, mit der frühzeitig etwaige Fehlfunktionen im Bereich des Kurbelgehäuses erkannt werden können.This has the advantage that the Fuel content from the crankcase ventilation can be determined. This is a diagnosis for the fuel content in the oil to disposal, with the early Any malfunctions in the area of the crankcase can be detected.
Weitere Merkmale, Vorteile und vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den abhängigen Ansprüchen, sowie aus der nachstehenden Beschreibung der Erfindung anhand der beigefügten Zeichnung. Diese zeigt in der einzigen Fig. schematisch eine bevorzugte Ausführungsform einer erfindungsgemäßen Brennkraftmaschine.Further Features, advantages and advantageous embodiments of the invention arise from the dependent ones claims, and from the following description of the invention with reference to the attached Drawing. This shows schematically in the only Fig. A preferred embodiment an internal combustion engine according to the invention.
Die
aus
Mit
dem Kurbelgehäuse
Das
TEV
Die
erfindungsgemäße Anordnung
bietet darüber
hinaus auch eine zusätzliche
Diagnosemöglichkeit,
indem auf nachfolgend beschriebene Weise ein Kraftstoffanteil irh Öl im Kurbelgehäuse überwacht
wird. Hierbei wird das Ventil
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001140987 DE10140987B4 (en) | 2001-08-21 | 2001-08-21 | Internal combustion engine and diagnostic method for this |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001140987 DE10140987B4 (en) | 2001-08-21 | 2001-08-21 | Internal combustion engine and diagnostic method for this |
Publications (2)
Publication Number | Publication Date |
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DE10140987A1 DE10140987A1 (en) | 2003-03-06 |
DE10140987B4 true DE10140987B4 (en) | 2010-10-07 |
Family
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DE2001140987 Expired - Fee Related DE10140987B4 (en) | 2001-08-21 | 2001-08-21 | Internal combustion engine and diagnostic method for this |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010043780A1 (en) * | 2010-11-11 | 2012-05-16 | Continental Automotive Gmbh | Determining a fuel outgassing from a lubricant within an internal combustion engine and lambda adaptation based on the determined fuel outgassing |
DE102012209107A1 (en) | 2012-05-30 | 2013-12-05 | Continental Automotive Gmbh | Method and device for operating an internal combustion engine |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10313192C5 (en) * | 2003-03-25 | 2017-04-13 | Volkswagen Ag | Internal combustion engine and method for operating the same |
DE10318784B4 (en) * | 2003-04-25 | 2008-06-12 | Audi Ag | Method for operating an internal combustion engine |
DE10335909A1 (en) * | 2003-08-06 | 2005-03-10 | Daimler Chrysler Ag | Combustion engine with crankcase ventilation has oil separator and hydrocarbon store downstream from the separator during full load operation |
JP4466746B2 (en) * | 2008-02-21 | 2010-05-26 | トヨタ自動車株式会社 | Abnormality diagnosis device for blow-by gas reduction device |
US7992548B2 (en) | 2008-10-09 | 2011-08-09 | GM Global Technology Operations LLC | Crankcase vapor management system |
DE102017222770A1 (en) * | 2017-12-14 | 2019-06-19 | Bayerische Motoren Werke Aktiengesellschaft | Method for operating a crankcase ventilation device of an internal combustion engine for a motor vehicle, and an internal combustion engine with such a crankcase ventilation device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3673997A (en) * | 1970-02-13 | 1972-07-04 | Nissan Motor | Air-pollution preventing system |
DE3638986C2 (en) * | 1986-11-14 | 1992-05-21 | Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg, De | |
DE4322940A1 (en) * | 1993-07-09 | 1995-01-12 | Opel Adam Ag | Venting device for the fuel tank of a motor vehicle with internal combustion engine |
US5992397A (en) * | 1997-06-30 | 1999-11-30 | Hideaki; Watase | Combustion enhancing apparatus and method |
-
2001
- 2001-08-21 DE DE2001140987 patent/DE10140987B4/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3673997A (en) * | 1970-02-13 | 1972-07-04 | Nissan Motor | Air-pollution preventing system |
DE3638986C2 (en) * | 1986-11-14 | 1992-05-21 | Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg, De | |
DE4322940A1 (en) * | 1993-07-09 | 1995-01-12 | Opel Adam Ag | Venting device for the fuel tank of a motor vehicle with internal combustion engine |
US5992397A (en) * | 1997-06-30 | 1999-11-30 | Hideaki; Watase | Combustion enhancing apparatus and method |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010043780A1 (en) * | 2010-11-11 | 2012-05-16 | Continental Automotive Gmbh | Determining a fuel outgassing from a lubricant within an internal combustion engine and lambda adaptation based on the determined fuel outgassing |
DE102010043780B4 (en) * | 2010-11-11 | 2013-07-18 | Continental Automotive Gmbh | Determining a fuel outgassing from a lubricant within an internal combustion engine and lambda adaptation based on the determined fuel outgassing |
US9567925B2 (en) | 2010-11-11 | 2017-02-14 | Continental Automotive Gmbh | Determining outgassing of a fuel from a lubricant within an internal combustion engine and lambda value adaptation based on the determined outgassing of fuel |
DE102012209107A1 (en) | 2012-05-30 | 2013-12-05 | Continental Automotive Gmbh | Method and device for operating an internal combustion engine |
WO2013178630A1 (en) | 2012-05-30 | 2013-12-05 | Continental Automotive Gmbh | Method and device for operating an internal combustion engine |
DE102012209107B4 (en) * | 2012-05-30 | 2014-02-13 | Continental Automotive Gmbh | Method and device for operating an internal combustion engine |
US9556766B2 (en) | 2012-05-30 | 2017-01-31 | Continental Automotive Gmbh | Method and device for operating an internal combustion engine |
Also Published As
Publication number | Publication date |
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DE10140987A1 (en) | 2003-03-06 |
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