EP1132604A2 - Procédé pour surveiller l'injection de carburant dans un moteur à combustion interne - Google Patents

Procédé pour surveiller l'injection de carburant dans un moteur à combustion interne Download PDF

Info

Publication number
EP1132604A2
EP1132604A2 EP01104949A EP01104949A EP1132604A2 EP 1132604 A2 EP1132604 A2 EP 1132604A2 EP 01104949 A EP01104949 A EP 01104949A EP 01104949 A EP01104949 A EP 01104949A EP 1132604 A2 EP1132604 A2 EP 1132604A2
Authority
EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
speed
injected
max
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.)
Granted
Application number
EP01104949A
Other languages
German (de)
English (en)
Other versions
EP1132604B1 (fr
EP1132604A3 (fr
Inventor
Michael Dr. Käsbauer
Achim Przymusinski
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1132604A2 publication Critical patent/EP1132604A2/fr
Publication of EP1132604A3 publication Critical patent/EP1132604A3/fr
Application granted granted Critical
Publication of EP1132604B1 publication Critical patent/EP1132604B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F02D41/22—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
    • F02D2200/00—Input parameters for engine control
    • F02D2200/50—Input parameters for engine control said parameters being related to the vehicle or its components
    • F02D2200/501—Vehicle speed

Definitions

  • the invention relates to a method for monitoring the Fuel injection in an internal combustion engine, in particular in a diesel internal combustion engine, which is speed-controlled Area is operated.
  • Such on-board diagnostic systems are according to the directive 98/69 / EG of the European Parliament and of the Council in the future also required for diesel vehicles.
  • the task here next to the monitoring of the efficiency is one existing catalyst, a particle filter and one electronic fuel quantity control of the fuel injection system also the monitoring of those connected to a computer emission-relevant components or subsystems of the Drivetrain, the failure or malfunction of which lead to it could that the exhaust emissions meet the predetermined limits exceed. Monitoring the actually injected The amount of fuel is a key requirement.
  • the invention is therefore based on the object of a method specify with which the injected in a simple manner Fuel quantity can be monitored.
  • the amount of fuel to be injected is determined solely by the Speed of the internal combustion engine regulated. If there are no errors Vehicle operation and defined operating parameters moved the amount of fuel regulated in this way between Applicable upper and lower limits. These limits are set so that they are exceeded or undershot diagnosed as faulty injection can be, which is an exceedance by the legislature may result in predetermined exhaust gas limit values. It will therefore checks whether the amount of fuel is within the range of an upper and lower limit of a certain range.
  • the speed-controlled idle operation of the internal combustion engine when the vehicle is at a standstill represents an easily reproducible operating state which is in the European test cycle a significant percentage according to the above-mentioned guideline Share (city driving cycle: 30%).
  • FIG (BKM) 10 A diesel internal combustion engine is very simplified in FIG (BKM) 10 with a diesel control device assigned to it shown, with only those parts shown are necessary for understanding the invention. Particular attention is paid to the representation of the exhaust gas aftertreatment system and the fuel circuit have been dispensed with.
  • the diesel control device has a speed controller 11, which is the difference between a predetermined target speed N_SOLL and that detected by means of a sensor, not shown Actual speed N_IST is supplied to internal combustion engine 10 becomes.
  • the speed controller 11 acts on an injection device 12 a, for example as an injection pump or as Storage injection system (Common Rail System) be formed can.
  • the closed control loop creates a certain one Amount of fuel, for example at idle Internal combustion engine 10, the fuel quantity MF_IS, which by means of the injection device 12 of the internal combustion engine 10 is fed.
  • One used to monitor the amount of fuel injected Monitoring device 14 has a comparator 15 on, the amount of fuel output by the speed controller 11 MF_IS in mg / stroke with two predefined threshold values for compares the fuel quantities MF_MAX and MF_MIN.
  • This Threshold values MF_MAX and MF_MIN are dependent on the specified emission limit values are applied and are in one Storage filed. You can, for example, depending on the Temperature of the coolant of the engine 10 as Characteristic curves are stored in maps 16, 17.
  • the comparator 14 is connected to an input port of a counter 18, whose output port is connected to a fault memory 19 is.
  • a fault warning lamp 20 is assigned to the fault memory 19.
  • the function of the monitoring device 14 is based on the description of Figures 2-5 explained in more detail.
  • the speed controller 11 is for the sake of Clarity drawn as a separate component, he can but also in the same way as the monitoring device 14 controlling and regulating the operation of the internal combustion engine 10 Control device (ECU) 13 may be integrated.
  • ECU Control device
  • the amount of fuel to be injected regulated solely by the speed.
  • This operating state e.g. when the vehicle stops at traffic lights.
  • the speed controller varies to adjust the idle speed 11 the fuel injection quantity until the measured Actual speed is equal to the specified target speed.
  • the the idling speed that occurs serves to compensate for the Sum of the external load torques and all torque losses on the internal combustion engine itself, e.g. of compensation internal moments of friction.
  • the causes of faulty fuel injections can be e.g. in the event of defects in the injection nozzles, in the electrical Control of the same or faulty signals from a Pressure sensor lie, which detects the pressure in the fuel circuit.
  • a Pressure sensor lie, which detects the pressure in the fuel circuit.
  • the thresholds MF_MAX and MF_MIN for monitoring the injected The amount of fuel is then adjusted in a suitable manner. This can be done either by tracking the thresholds (Offset compensation) are done as it is in the diagram is shown by Figure 4, or by expanding the through the thresholds of limited band are reached.
  • the Unit for the time axis t is a multiple of the unit of the Time axes t in the illustration according to FIGS. 2-4. That is why the course of the injected fuel quantity MF_IS within the threshold values compared to the other courses significantly smoother.
  • the method is shown in FIG. 5 in the form of a flow chart shown to monitor the amount of fuel injected.
  • predetermined Limit values e.g. 1.8 km / h
  • predetermined Operating conditions This can in particular be checked whether the temperature of the coolant of the Internal combustion engine 10 exceeds a predetermined threshold and has no disturbing external load moments for example by switching on the air conditioning system, occur. This query serves to reproducible states for checking the amount of fuel injected receive.
  • step S3 the current value for the injected fuel quantity MF_IS read in and checked in a method step S4, whether this value MF_IS within the by the threshold values MF_MAX and MF_MIN limited area. Is this the If this is the case, the injector operates correctly closed and branched to the beginning of the procedure. Is the value for the amount of fuel injected MF_IS outside the specified area, is in the procedural step S5 increments the counter reading of the counter 18 (FIG. 1). Then in a method step S6 checks whether a predetermined end value for the counter reading is reached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
EP01104949A 2000-03-06 2001-02-28 Procédé pour surveiller l'injection de carburant dans un moteur à combustion interne Expired - Lifetime EP1132604B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10010847 2000-03-06
DE10010847A DE10010847C1 (de) 2000-03-06 2000-03-06 Verfahren zum Überwachen der Kraftstoffeinspritzung bei einer Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP1132604A2 true EP1132604A2 (fr) 2001-09-12
EP1132604A3 EP1132604A3 (fr) 2003-03-19
EP1132604B1 EP1132604B1 (fr) 2004-08-18

Family

ID=7633680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01104949A Expired - Lifetime EP1132604B1 (fr) 2000-03-06 2001-02-28 Procédé pour surveiller l'injection de carburant dans un moteur à combustion interne

Country Status (2)

Country Link
EP (1) EP1132604B1 (fr)
DE (2) DE10010847C1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1215386A3 (fr) * 2000-12-15 2004-01-21 Toyota Jidosha Kabushiki Kaisha Dispositif et procédé de diagnostic d'un système d'alimentation de carburant
EP1403750A1 (fr) * 2002-09-27 2004-03-31 Peter Renner Système pour détecter et évaluer des changements dans des processus téchniques
WO2009050147A1 (fr) * 2007-10-17 2009-04-23 Robert Bosch Gmbh Procédé de fonctionnement d'un organe de commande
EP2305989A4 (fr) * 2008-05-16 2011-06-29 Honda Motor Co Ltd Dispositif et procede d'estimation d'une anomalie d'un systeme de commande de ralenti

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016219479A1 (de) * 2016-10-07 2018-04-12 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ermitteln eines Schädigungszustands einer Komponente eines Fahrzeugs

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4103840B4 (de) * 1991-02-08 2011-02-10 Robert Bosch Gmbh Fehler-Überwachungsverfahren
US5535621A (en) * 1994-03-02 1996-07-16 Ford Motor Company On-board detection of fuel injector malfunction
DE19620038B4 (de) * 1996-05-17 2007-08-23 Robert Bosch Gmbh Verfahren und Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems
DE19626690B4 (de) * 1996-07-03 2008-12-11 Robert Bosch Gmbh Verfahren und Vorrichtung zur Überwachung eines Kraftstoffzumeßsystems einer Brennkraftmaschine
DE19637395C1 (de) * 1996-09-13 1998-04-16 Siemens Ag Verfahren und Einrichtung zur Steuerung der einer Brennkraftmaschine zuzuführenden Kraftstoffmenge
US5995899A (en) * 1997-03-25 1999-11-30 Nissan Motor Co., Ltd. Diesel engine fuel injection device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1215386A3 (fr) * 2000-12-15 2004-01-21 Toyota Jidosha Kabushiki Kaisha Dispositif et procédé de diagnostic d'un système d'alimentation de carburant
EP1403750A1 (fr) * 2002-09-27 2004-03-31 Peter Renner Système pour détecter et évaluer des changements dans des processus téchniques
WO2009050147A1 (fr) * 2007-10-17 2009-04-23 Robert Bosch Gmbh Procédé de fonctionnement d'un organe de commande
EP2305989A4 (fr) * 2008-05-16 2011-06-29 Honda Motor Co Ltd Dispositif et procede d'estimation d'une anomalie d'un systeme de commande de ralenti

Also Published As

Publication number Publication date
DE10010847C1 (de) 2001-09-20
EP1132604B1 (fr) 2004-08-18
DE50103278D1 (de) 2004-09-23
EP1132604A3 (fr) 2003-03-19

Similar Documents

Publication Publication Date Title
EP1305514B1 (fr) Procede d'analyse de la capacite de fonctionnement d'une soupape de recyclage des gaz d'echappement d'un moteur thermique
DE19527030C2 (de) Fehlererfassungsvorrichtung zur Erfassung eines Fehlers in einem Abgasrückführungssystem einer Brennkraftmaschine
DE4426494A1 (de) Einrichtung zur Überwachung des Kühlsystems bei einer Brennkraftmaschine
DE19931321A1 (de) Verfahren zum Überprüfen eines Dreiwege-Abgaskatalysators einer Brennkraftmaschine
DE10337428A1 (de) Offline Diagnosesystem für eine elektronische Drosselklappe
EP0811116A1 (fr) Procede et dispositif de controle du systeme de dosage de carburant d'un moteur a combustion interne
DE102004022115A1 (de) Verfahren zum Einbringen eines Reagenzmittels in einen Abgaskanal einer Brennkraftmaschine und Vorrichtung zur Durchführung des Verfahrens
WO2008080670A1 (fr) Procédé et dispositif de détermination d'une fonction optimisée de fonctionnement de secours dans un moteur défectueux d'un véhicule automobile.
DE4302483C2 (de) Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
EP1305513B1 (fr) Procede de verification de la capacite de fonctionnement d'un systeme de recyclage des gaz d'echappement d'un moteur thermique
DE102013201997A1 (de) Verfahren und Vorrichtung zum Betrieb einer Kraftstoffeinspritzeinrichtung insbesondere eines Kraftfahrzeuges
EP1132604B1 (fr) Procédé pour surveiller l'injection de carburant dans un moteur à combustion interne
DE102007003547A1 (de) Verfahren zur Diagnose eines eine Abgasbehandlungsvorrichtung enthaltenden Abgasbereichs einer Brennkraftmaschine und Vorrichtung zur Durchführung des Verfahrens
DE102018204139A1 (de) Verfahren zum Überwachen eines Fahrzeugs
EP1180210B2 (fr) Procede et dispositif pour commander un moteur a combustion interne equipe d'un systeme de retraitement des gaz d'echappement
EP1081361B1 (fr) Contrôle du fonctionnement d'un système de régulation de masse d'air
DE112014001033B4 (de) Überwachungseinheit und Verfahren zur Überwachung eines Kraftstoffsystems
DE19641942B4 (de) Verfahren und Vorrichtung zur Fehlererkennung bei einer Brennkraftmaschine
DE102019008535A1 (de) Verfahren zum Betreiben eines Kraftfahrzeugs, insbesondere eines Kraftwagens
EP1924455A1 (fr) Surveillance de couple pour un entrainement hybride
DE4237198A1 (de) Verfahren und Vorrichtung zur Überprüfung einer Überwachungseinheit
DE19707868B4 (de) Verfahren und Vorrichtung zur Überwachung eines Systems zur Steuerung einer Brennkraftmaschine
DE19607284B4 (de) Verfahren zum Erfassen und Dokumentieren von abgasrelevanten Fehlfunktionen eines Fahrzeugs
EP0828069A2 (fr) Méthode et dispositif pour surveiller le limiteur de débit de l'alimentation en carburant d'un moteur à combustion
DE102005007105B4 (de) Überwachung von Kühlflüssigkeitstemperaturgebern

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20030417

17Q First examination report despatched

Effective date: 20030821

AKX Designation fees paid

Designated state(s): DE FR IT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR IT

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50103278

Country of ref document: DE

Date of ref document: 20040923

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050519

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20120227

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120223

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20131031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20180228

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50103278

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190903