[go: up one dir, main page]

WO2010003780A1 - Procédé et appareil de diagnostic pour la détection d'un défaut de fonctionnement d'un système d'injection - Google Patents

Procédé et appareil de diagnostic pour la détection d'un défaut de fonctionnement d'un système d'injection Download PDF

Info

Publication number
WO2010003780A1
WO2010003780A1 PCT/EP2009/057443 EP2009057443W WO2010003780A1 WO 2010003780 A1 WO2010003780 A1 WO 2010003780A1 EP 2009057443 W EP2009057443 W EP 2009057443W WO 2010003780 A1 WO2010003780 A1 WO 2010003780A1
Authority
WO
WIPO (PCT)
Prior art keywords
injection
fuel
internal combustion
combustion engine
gas temperature
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
Application number
PCT/EP2009/057443
Other languages
German (de)
English (en)
Inventor
Matthias Stampfer
Tahar Zrilli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of WO2010003780A1 publication Critical patent/WO2010003780A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F02D41/1493—Details
    • F02D41/1495—Detection of abnormalities in the air/fuel ratio feedback system
    • 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
    • F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
    • F02D41/402—Multiple injections
    • F02D41/405—Multiple injections with post injections

Definitions

  • the invention relates to a method for detecting a malfunction in an injection system of an internal combustion engine, in particular of a motor vehicle.
  • the invention relates to a fault diagnosis device for detecting a malfunction in an injection system of an internal combustion engine, in particular of a motor vehicle, in which the fault diagnosis device can be connected to a data peripheral of the motor vehicle by means of suitable connection means.
  • methods for detecting a malfunction in an injection system of an internal combustion engine allow it only in connection with on-board diagnostic systems of a motor vehicle under dynamic operating conditions only to a limited extent, for example with regard to an electrical short circuit Determine the cause of an error in an injection system without negatively influencing the driving behavior, the exhaust emissions and / or the fuel consumption.
  • the search is not possible with currently available methods.
  • the object of the invention is achieved by a method for detecting a malfunction in an injection system of an internal combustion engine, in particular of a motor vehicle, in which a regular injection quantity of a fuel by means of a for detecting the malfunction in the injection system additional or reduced injection amount of fuel at least temporarily increases or decreases, a measured value of an exhaust gas temperature and / or an increase / decrease of the exhaust gas temperature due to the injection quantity increase or - determined reduction and the determined measured value is compared with an expected value.
  • a malfunction in the injection system can be detected when the internal combustion engine an additional or reduced injection amount of fuel is supplied, with an increase in injection quantity within an exhaust system, in particular within an oxidation catalyst, the internal combustion engine causes an exhaust gas temperature rise. If a measured value is determined for this exhaust-gas temperature rise and compared with an expected value which is to be expected with regard to the additional injection quantity of fuel, it is possible to draw conclusions about the actual amount of fuel injected. As a result of this, a cause of the fault which causes the malfunction on the injection system can be detected much more precisely for the first time than was previously possible.
  • an abnormal injection quantity of fuel can be detected particularly advantageously by means of an evaluation of the injection-related increase in a measured exhaust gas temperature, which can be measured behind, in particular, a diesel oxidation catalytic converter of a diesel internal combustion engine, and the relevant expectation value. In this case, it is then possible to further infer a malfunction in the injection system of the internal combustion engine.
  • An already suitable measured value which can be used as a sufficiently accurate actual value for comparison with an expected value, can either be a measured value of a single exhaust-gas temperature measurement as a result of an increase in injection quantity be. Cumulatively or alternatively, a difference value with regard to an exhaust-gas temperature rise due to an increase in injection quantity can also be related to a calculated expected value in this regard.
  • fuel injection system in the present case describes any components, in particular fuel-carrying components of an internal combustion engine, which are required in order to be able to supply the fuel to individual combustion chambers of the internal combustion engine.
  • the expected value is calculated on the basis of an additional injection quantity of fuel supplied to the combustion chambers of the internal combustion engine, in particular with regard to the injection quantity increase.
  • the additional injection amount of fuel can be supplied in different ways, such as all injectors of an injection system at the same time.
  • a particularly advantageous variant of the method provides that the injection quantity of the fuel at each of the injection devices, such as at an injector of the injection system, is incrementally increased or reduced. For example, due to such a stepwise variation of the additional injection quantity at each injector, a multiplicity of different measurements can take place one behind the other, so that faulty components of the injection system can be delimited even more precisely by means of a series of measurements that can be developed from this.
  • an additional injection quantity of the fuel is injected by means of a post-fuel injection.
  • a post-fuel injection is already well known in the art and also well controlled.
  • a post-injection fuel injection is used to achieve an increase in exhaust gas temperature, for example for regeneration of a catalytic converter.
  • Such a post-fuel injection is also known, for example, from the European patent specification EP 1 252 427 B1, in which an injected fuel mass is regulated by increasing an engine load, without influencing vehicle operation, so that a total exhaust-gas temperature increase that is neutral in terms of the engine can be achieved.
  • no malfunction can be detected on a component of an injection system of an internal combustion engine.
  • the exhaust gas temperature and / or the increase in the exhaust gas temperature can be determined particularly advantageously in terms of design by means of an exothermic reaction with respect to an oxidation catalyst, in particular with respect to a diesel oxidation catalyst.
  • the present method can be used particularly advantageously if an abnormal injection quantity of a fuel is to be detected.
  • the method can advantageously be further developed if a faulty injection quantity, in particular an insufficient injection quantity, is detected.
  • a faulty injection quantity in particular an insufficient injection quantity
  • an injection quantity that is too low or fuel injection that has not been carried out can be detected at one of the injectors if it is possible to determine an excessively low or no measurable exhaust-gas temperature increase in the exhaust system with regard to a sequential post-injection of fuel.
  • An insufficient injection quantity may result, for example, if an injector is dirty.
  • an injection quantity that is too high can be detected. For example, this may be the case at an injector of an injection system when the injector already has critical signs of wear. Such wear can be attributed to excessive exhaust gas temperature rise within the exhaust system due to an abnormally increased injection quantity.
  • each individual one of the injection devices or each individual one of the injectors is checked.
  • an exhaust-gas temperature rise is too low for all injectors, it can be concluded that there is a problem of pressure build-up within the injection system.
  • the causes of this can be a leakage in fuel-carrying lines or components and / or a reduced efficiency of a high-pressure pump of the injection system.
  • exhaust gas temperature rise is too low for all injectors, it can be assumed that only a single injector is unlikely to operate improperly.
  • a faulty rail pressure within the fuel supply position of the injection liner can also be determined if an exhaust gas temperature rise is too high with respect to all individually tested injectors. It can be assumed that there is an overall high rail pressure. This may indicate a problem with a volume control valve. If necessary, this is too far open, o- if any, a pressure control valve may be too closed. If, in particular, an ignition system of a gasoline-fueled internal combustion engine is operated with targeted spark ignitions, an exhaust gas temperature increase within the exhaust gas system can likewise be achieved cumulatively or alternatively to the fuel post-injection.
  • an increase in injection quantity and, as a result, an exhaust-gas temperature increase can also be achieved by means of a higher load requirement on the internal combustion engine.
  • This can be achieved without great effort, for example, by switching in particular electrical consumers, so that the load with regard to the internal combustion engine can be increased in terms of process technology in a particularly simple manner in order to be able to provide sufficiently additional electrical energy for the electrical consumers. Therefore, a further advantageous variant of the method provides that electrical consumers, in particular of a motor vehicle, are connected in order to be able to increase an injection quantity of the internal combustion engine.
  • the method on which the invention is based can be carried out on-board a vehicle, in which case appropriate hardware and / or software systems for carrying out the method in the vehicle periphery can be provided and permanently carried.
  • the method according to the invention could be carried out during relatively uniform driving conditions, for example during a sufficiently long idling or coasting phase of an internal combustion engine.
  • the present method can also be carried out only during maintenance or repair work in a workshop with an external fault diagnosis device.
  • the object of the invention is architecteg also solved by a fault diagnosis device for detecting a malfunction in an injection system of an internal combustion engine, in particular a motor vehicle, in which the fault diagnosis device can be connected by means of suitable connection means to a data peripheral of the motor vehicle, wherein the fault diagnosis device is characterized in that it means for Activation and / or deactivation of individual or all injection devices of an injection system of an internal combustion engine comprises.
  • the fault diagnosis device comprises means for comparing a measured value of an exhaust gas temperature increase due to an increase in injection quantity of a fuel with a respective expected value of a predicted exhaust gas temperature rise.
  • the fault diagnosis device comprises means for measuring an exothermic reaction in an oxidation catalytic converter
  • the fault diagnosis device comprises means for measuring an exothermic reaction in an oxidation catalytic converter
  • procedurally and on the other hand structurally accurate measured values with regard to an achieved exhaust gas temperature difference can be determined particularly easily.
  • the expected exothermic reactions preferably by means of suitable exhaust gas temperature sensors directly on the oxidation catalyst can be monitored.
  • the fault diagnosis device In order for measured values determined and / or other calculated measured values or related measured data to be available for evaluation, for subsequent checking and / or further processing, it is advantageous if the fault diagnosis device also has means for evaluating and / or storing of determined measurement data with regard to the method explained here. Thus, targeted repair measures can also be made at a later date or visit to the workshop based on stored measurement data targeted.
  • an internal combustion engine must still be able to be started and operated, for example during standstill operation of a motor vehicle during a workshop visit.
  • a sufficient Rail réelle attendant should still be possible on an injection system of the internal combustion engine, in particular should not be present critical leaks in fuel-carrying components of the injection system.
  • the internal combustion engine would ideally have to be able to be operated at low load or at low torque in a stationary operating state.
  • a low-consumption operating mode can be selected on the internal combustion engine in which, if possible, only a constant main injection is active.
  • a low idle speed such as about 700 U / min, could be set with respect to the engine.
  • Components, in particular of a fuel intake tract and of an exhaust system of the internal combustion engine, should be able to operate well, ie at least not be defective.
  • it is expedient if the exhaust gas temperature has already reached or exceeded an activation temperature of an oxidation catalyst and has at least approximately reached a required conversion rate.
  • FIGURE schematically shows a view of a self-igniting internal combustion engine with a downstream exhaust system.
  • an internal combustion engine / exhaust unit 1 is schematically illustrated with an internal combustion engine 2 and with an exhaust system 3 downstream of the internal combustion engine 2.
  • the internal combustion engine 2 is a self-igniting internal combustion engine 4, which is operated by means of diesel fuel.
  • the self-igniting internal combustion engine 4 includes an injection system 5 for the diesel fuel, which can be injected into the respective combustion chamber 8 of the self-igniting internal combustion engine 4 by means of injection devices 6, which are shown as an example injector 7 in this illustration.
  • the injection system 5 also includes, for example, injection relays 9, by means of which injection of the diesel fuel can be regulated, in particular a regular injection quantity for the proper operation of the self-igniting internal combustion engine 4 and as an additional injection quantity for an injection quantity increase.
  • the exhaust system 3 comprises an exhaust manifold 10, by means of which the exhaust system 3 is flanged to the self-igniting internal combustion engine 4. Furthermore, the exhaust system 3 according to this illustration comprises an exhaust gas turbine 11, a diesel oxidation catalyst 12, a particulate filter 13 and a muffler 14. In front of the diesel oxidation catalyst 12 is a first exhaust gas temperature sensor 15 and behind the Diesel oxidation catalyst 12 is placed another exhaust temperature sensor 16, by means of which an exhaust gas temperature increase can be measured, which can be caused by exothermic reactions within the diesel oxidation catalyst 12 due to injection quantity increases of the diesel fuel.
  • the particle filter 13 is also equipped with a pressure sensor 17, by means of which a pressure difference between a particle filter inlet 18 and a particle filter outlet 19 can be measured.
  • an additional injection quantity of diesel fuel is injected into the combustion chambers 8 to a regular injection quantity of diesel fuel, resulting in a defined increase in injection quantity.
  • This increase in injection quantity results in an increased exothermic reaction within the diesel oxidation catalytic converter, as a result of which an exhaust gas temperature increase, in particular at the further exhaust gas temperature sensor 16, can be determined.
  • This determined exhaust gas temperature rise is compared with a calculated expected value. From this targeted conclusions can be obtained on the cause of the malfunction of the injection system 5, whereby an exchange of defective components of the injection system 5 can be made more targeted than before. It should also be noted at this point that the other variants of the method explained above can be additionally performed if an improved diagnosis can be achieved as a result.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

Pour éviter en particulier un remplacement inattendu et non économique de composants d'un système d'injection d'un moteur à combustion interne en cas de défaut de comportement du système d'injection, l'invention propose un procédé de détection d'un défaut de fonctionnement d'un système d'injection d'un moteur à combustion interne, en particulier pour un véhicule automobile, dans lequel pour détecter le défaut de fonctionnement du système d'injection, une quantité régulière d'injection de carburant est augmentée au moins temporairement au moyen d'une quantité supplémentaire d'injection de carburant, une valeur de mesure de la température des gaz d'échappement et/ou d'une augmentation de la température des gaz d'échappement suite à l'augmentation de la quantité d'injection étant déterminée et la valeur de mesure ainsi déterminée étant comparée à une valeur attendue.
PCT/EP2009/057443 2008-07-11 2009-06-16 Procédé et appareil de diagnostic pour la détection d'un défaut de fonctionnement d'un système d'injection Ceased WO2010003780A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008032741.7 2008-07-11
DE200810032741 DE102008032741B3 (de) 2008-07-11 2008-07-11 Verfahren und Diagnosegerät zum Erkennen einer Fehlfunktion an einer Einspritzanlage

Publications (1)

Publication Number Publication Date
WO2010003780A1 true WO2010003780A1 (fr) 2010-01-14

Family

ID=41119896

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/057443 Ceased WO2010003780A1 (fr) 2008-07-11 2009-06-16 Procédé et appareil de diagnostic pour la détection d'un défaut de fonctionnement d'un système d'injection

Country Status (2)

Country Link
DE (1) DE102008032741B3 (fr)
WO (1) WO2010003780A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011005283A1 (de) 2011-03-09 2012-09-13 Continental Automotive Gmbh Verfahren zur Erkennung fehlerhafter Komponenten eines elektronisch geregelten Kraftstoffeinspritzsystems eines Verbrennungsmotors
WO2017194658A1 (fr) * 2016-05-11 2017-11-16 Ge Jenbacher Gmbh & Co. Og Procédé pour détecter une quantité de gaz
CN110469439A (zh) * 2019-08-30 2019-11-19 攀钢集团矿业有限公司 排气温度测试判定电磁喷油器性能的方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1096126A2 (fr) * 1999-10-26 2001-05-02 Toyota Jidosha Kabushiki Kaisha Appareil et méthode de chauffage d'échappement pour moteur à combustion interne
EP1154131A2 (fr) * 2000-03-16 2001-11-14 Mazda Motor Corporation Dispositif de purification des gaz d'échappement d'un moteur à combustion interne
EP1205647A1 (fr) * 2000-11-03 2002-05-15 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Procédé de régénération le filtre à particules d'un moteur Diesel
DE10113010A1 (de) * 2001-03-17 2002-09-19 Bosch Gmbh Robert Verfahren und Vorrichtung zur Überwachung eines Abgasnachbehandlungssystems
DE10225208A1 (de) * 2001-06-07 2003-02-06 Denso Corp Abgasreinigungssystem für eine Verbrennungskraftmaschine
EP1818529A1 (fr) * 2004-11-25 2007-08-15 Hitachi Construction Machinery Co., Ltd. Dispositif et procede de protection d'un moteur d'engin de construction
WO2008080952A1 (fr) * 2006-12-28 2008-07-10 Robert Bosch Gmbh Procédé de chauffage d'un catalyseur disposé dans la zone occupée par les gaz d'échappement d'un processus de combustion et dispositif en vue de la mise en œuvre du procédé

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10001992A1 (de) * 2000-01-19 2001-07-26 Volkswagen Ag Verfahren zur temporären Erhöhung einer Abgastemperatur einer Verbrennungskraftmaschine
JP4424128B2 (ja) * 2004-09-10 2010-03-03 株式会社デンソー コモンレール式燃料噴射装置
DE102006027591B4 (de) * 2006-06-14 2012-03-08 Caterpillar Motoren Gmbh & Co. Kg Verfahren zum Steuern eines Verbrennungsmotors
DE102006061894A1 (de) * 2006-12-28 2008-07-03 Robert Bosch Gmbh Vorrichtung zur Diagnose von Fehlfunktionen in Brennkraftmaschinen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1096126A2 (fr) * 1999-10-26 2001-05-02 Toyota Jidosha Kabushiki Kaisha Appareil et méthode de chauffage d'échappement pour moteur à combustion interne
EP1154131A2 (fr) * 2000-03-16 2001-11-14 Mazda Motor Corporation Dispositif de purification des gaz d'échappement d'un moteur à combustion interne
EP1205647A1 (fr) * 2000-11-03 2002-05-15 Ford Global Technologies, Inc., A subsidiary of Ford Motor Company Procédé de régénération le filtre à particules d'un moteur Diesel
DE10113010A1 (de) * 2001-03-17 2002-09-19 Bosch Gmbh Robert Verfahren und Vorrichtung zur Überwachung eines Abgasnachbehandlungssystems
DE10225208A1 (de) * 2001-06-07 2003-02-06 Denso Corp Abgasreinigungssystem für eine Verbrennungskraftmaschine
EP1818529A1 (fr) * 2004-11-25 2007-08-15 Hitachi Construction Machinery Co., Ltd. Dispositif et procede de protection d'un moteur d'engin de construction
WO2008080952A1 (fr) * 2006-12-28 2008-07-10 Robert Bosch Gmbh Procédé de chauffage d'un catalyseur disposé dans la zone occupée par les gaz d'échappement d'un processus de combustion et dispositif en vue de la mise en œuvre du procédé

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011005283A1 (de) 2011-03-09 2012-09-13 Continental Automotive Gmbh Verfahren zur Erkennung fehlerhafter Komponenten eines elektronisch geregelten Kraftstoffeinspritzsystems eines Verbrennungsmotors
WO2012119911A1 (fr) 2011-03-09 2012-09-13 Continental Automotive Gmbh Procédé de détection d'éléments défectueux d'un système d'injection de carburant à régulation électronique d'un moteur à combustion interne
DE102011005283B4 (de) * 2011-03-09 2013-05-23 Continental Automotive Gmbh Verfahren zur Erkennung fehlerhafter Komponenten eines elektronisch geregelten Kraftstoffeinspritzsystems eines Verbrennungsmotors
US9127632B2 (en) 2011-03-09 2015-09-08 Continental Automative Gmbh Method for detecting faulty components of an electronically regulated fuel injection system of an internal combustion engine
WO2017194658A1 (fr) * 2016-05-11 2017-11-16 Ge Jenbacher Gmbh & Co. Og Procédé pour détecter une quantité de gaz
US10641196B2 (en) 2016-05-11 2020-05-05 Innio Jenbacher & Gmbh Co Og Method for detecting a gas amount
CN110469439A (zh) * 2019-08-30 2019-11-19 攀钢集团矿业有限公司 排气温度测试判定电磁喷油器性能的方法

Also Published As

Publication number Publication date
DE102008032741B3 (de) 2010-02-18

Similar Documents

Publication Publication Date Title
DE102009056790B4 (de) Diagnostiksystem und -Verfahren für eine Kraftstoffeinspritzeinrichtung für einen Motor mit Direkteinspritzung
DE102007028900B4 (de) Verfahren und Vorrichtung zur Diagnose eines mit einer Kraftstoffverteilerleiste in Verbindung stehenden Einspritzventils einer Brennkraftmaschine
EP1373693B2 (fr) Procede et dispositif de controle d'un systeme de traitement ulterieur de gaz d'echappement
DE102011057117B4 (de) Vorrichtung zum Reinigen von Abgas und Verfahren zum Steuern desselben
EP3786434B1 (fr) Détermination des propriétés du carburant et de leur influence sur les émissions de gaz d'échappement lors du fonctionnement d'un moteur à combustion interne
DE102012113108B4 (de) Fahrzeug mit einem system und einem verfahren zum diagnostizieren von sekundärlufteinblas-vorrichtung
EP1192340B1 (fr) Procede pour la verification d'un pot d'echappement catalytique a trois voies d'un moteur a combustion interne
DE102010013602B4 (de) Verfahren zur Erkennung eines Fehlverhaltens eines elektronisch geregelten Kraftstoffeinspritzsystems eines Verbrennungsmotors
EP3527810B1 (fr) Procédé de fonctionnement d'un moteur à combustion interne
DE102004050989B4 (de) Verfahren zum Betreiben einer Abgasbehandlungsvorrichtung einer Brennkraftmaschine und Vorrichtung zur Durchführung des Verfahrens
DE60105917T2 (de) Vorrichtung und Verfahren zur Diagnose der Versorgungsvorrichtung eines Reduktionsmittels einer Brennkraftmaschine
DE60025636T2 (de) Diagnoseverfahren des abgassystems einer brennkraftmaschine
DE102012112627B4 (de) Abnormalitätsdiagnosevorrichtung für ein Verbrennungsmotorsteuersystem
DE102012206430B4 (de) Verfahren zur Diagnose eines Dosierventils und Vorrichtung zur Durchführung des Verfahrens
DE102008000691A1 (de) Verfahren und Vorrichtung zur Überwachung eines Zuluftsystems einer Brennkraftmaschine
DE102004022115A1 (de) Verfahren zum Einbringen eines Reagenzmittels in einen Abgaskanal einer Brennkraftmaschine und Vorrichtung zur Durchführung des Verfahrens
DE102010040678A1 (de) Verfahren zur Überwachung der Schadstoff-Konvertierungsfähigkeit in einem Abgasnachbehandlungssystem
DE102005001119A1 (de) Verfahren zum Betreiben einer Brennkraftmaschine und Vorrichtung zur Durchführung des Verfahrens
DE102015214780A1 (de) Verfahren zur Erkennung fehlerhafter Komponenten eines Kraftstoffeinspritzsystems
DE102009014809B3 (de) Verfahren und Vorrichtung zum Überprüfen einer Eindüsvorrichtung in einem Abgasnachbehandlungssystem einer Brennkraftmaschine
DE102013101905A1 (de) Kraftstoffeinspritzfehlererfassungsvorrichtung
DE102006013293B4 (de) Verfahren zur Diagnose einer Abgasnachbehandlungsvorrichtung und Vorrichtung zur Durchführung des Verfahrens
DE102010018007B4 (de) Steuerungssystem und Verfahren zur Detektion einer Sensorsignalbereichsüberschreitung
DE102008032741B3 (de) Verfahren und Diagnosegerät zum Erkennen einer Fehlfunktion an einer Einspritzanlage
EP1180210B2 (fr) Procede et dispositif pour commander un moteur a combustion interne equipe d'un systeme de retraitement des gaz d'echappement

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09779789

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09779789

Country of ref document: EP

Kind code of ref document: A1