[go: up one dir, main page]

WO2010006960A1 - Procédé pour déterminer la masse du carburant injecté - Google Patents

Procédé pour déterminer la masse du carburant injecté Download PDF

Info

Publication number
WO2010006960A1
WO2010006960A1 PCT/EP2009/058596 EP2009058596W WO2010006960A1 WO 2010006960 A1 WO2010006960 A1 WO 2010006960A1 EP 2009058596 W EP2009058596 W EP 2009058596W WO 2010006960 A1 WO2010006960 A1 WO 2010006960A1
Authority
WO
WIPO (PCT)
Prior art keywords
mass
fuel
rail
pressure
injected fuel
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/EP2009/058596
Other languages
German (de)
English (en)
Inventor
Gianluca Caretta
Hui Li
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 WO2010006960A1 publication Critical patent/WO2010006960A1/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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F02D41/3809—Common rail control systems
    • 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
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0602—Fuel pressure
    • 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
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0614—Actual fuel mass or fuel injection amount
    • F02D2200/0616—Actual fuel mass or fuel injection amount determined by estimation
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2432—Methods of calibration
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F02D41/2464—Characteristics of actuators
    • F02D41/2467—Characteristics of actuators for injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails

Definitions

  • the present invention relates to a method for determining the mass of injected into a cylinder of an internal combustion engine fuel in motor vehicles, which are provided with mon-rail injection system.
  • common rail means a common high-pressure fuel accumulator via which the individual injectors are supplied with fuel.
  • the present invention has for its object to provide a method of the type mentioned, which can be carried out in a particularly simple and cost-effective manner.
  • the mass of the injected fuel is determined using the rail pressure signal.
  • the pressure p in the rail can be characterized as follows:
  • E is the compression modulus of the fuel
  • V is the volume of the rail
  • Q 1 is the volume flow in the rail volume or from the rail volume
  • t is the time.
  • the rail pressure is constant and close to the setpoint.
  • the pressure drops under vibrations.
  • the vibrations decrease rapidly and a mean rail pressure level is reached which corresponds to a lower pressure.
  • ⁇ p can be expressed in the following way:
  • k (p, T) • ⁇ p E • (MF_INJ / p) V
  • MF_INJ is the mass of injected fuel
  • p is the density of the fuel
  • k (p, T) is an experimentally determined correction value that is dependent on the pressure p and the fuel temperature T in the rail.
  • MF INJ can be calculated (calculated) as follows:
  • the mass of the injected fuel can be determined easily and inexpensively. There is no additional chip required for this.
  • the method according to the invention is preferably used to determine the total mass of the fuel injected by each injector. On the basis of the determined mass or total mass of the injected fuel, it is advantageously used for torque monitoring.
  • FIG. 1 shows the profile of the rail pressure during an injection phase
  • Figure 2 is a graph showing the relationship between the pressure difference and the mass of the total injected fuel.
  • Figure 2 is a graph showing the relationship between the pressure difference ⁇ p and the mass of the total injected fuel due to a complete experimental determination.

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)

Abstract

L'invention concerne un procédé pour déterminer la masse du carburant injecté dans un cylindre d'un moteur à combustion interne dans des véhicules automobiles qui sont équipés d'un système d'injection à rampe commune. Selon le procédé, la pression de la rampe est mesurée avant et après une opération d'injection. La masse du carburant injecté est calculée à partir de la différence de pression déterminée. La mise en oevre de ce procédé est particulièrement simple et économique.
PCT/EP2009/058596 2008-07-18 2009-07-07 Procédé pour déterminer la masse du carburant injecté Ceased WO2010006960A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810033754 DE102008033754A1 (de) 2008-07-18 2008-07-18 Verfahren zum Ermitteln der Masse des eingespritzten Kraftstoffs
DE102008033754.4 2008-07-18

Publications (1)

Publication Number Publication Date
WO2010006960A1 true WO2010006960A1 (fr) 2010-01-21

Family

ID=41104332

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/058596 Ceased WO2010006960A1 (fr) 2008-07-18 2009-07-07 Procédé pour déterminer la masse du carburant injecté

Country Status (2)

Country Link
DE (1) DE102008033754A1 (fr)
WO (1) WO2010006960A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010001387A1 (de) * 2010-01-29 2011-08-04 Robert Bosch GmbH, 70469 Verfahren und Vorrichtung zur Prüfung eines Kraftstoffinjektors
DE102011100109A1 (de) * 2011-04-30 2012-10-31 Volkswagen Aktiengesellschaft Bestimmung und Verringerung eines Einspritzmengenunterschieds bei einem Verbrennungsmotor mit mehreren Zylindern
DE102015208416B3 (de) * 2015-05-06 2016-05-04 Continental Automotive Gmbh Ermittlungsverfahren zum Ermitteln eines absoluten Wertes einer eingespritzten Kraftstoffmasse
US20250012228A1 (en) * 2021-11-30 2025-01-09 Cummins Inc. High pressure fuel system controls, diagnostics, and prognostics using fuel mass change estimates
DE102022209727B4 (de) 2022-09-16 2024-03-28 Vitesco Technologies GmbH Verfahren zum Betreiben eines Kraftstoff-Einspritzsystems eines Verbrennungsmotors
DE102023202936A1 (de) 2023-03-30 2024-10-02 Vitesco Technologies GmbH Verfahren und Steuerungsvorrichtung zum Betreiben eines Kraftstoff-Einspritzsystems eines Verbrennungsmotors

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19700738C1 (de) * 1997-01-11 1998-04-16 Daimler Benz Ag Verfahren zur Regelung der Einspritzmengen von Injektoren einer kraftstoffeinspritzenden Brennkraftmaschine
DE10357158A1 (de) * 2003-12-06 2005-07-14 Bayerische Motoren Werke Ag Verfahren zum Korrigieren der Einspritzdauer eines Injektors für eine Brennkraftmaschine
DE102005058445B3 (de) * 2005-12-07 2007-04-26 Siemens Ag Verfahren zur Ermittlung einer in einen Zylinder einer Brennkraftmaschine mit einer Common-Rail-Einspritzanlage eingespritzten Kraftstoffmemge und Mittel zur Durchführung des Verfahrens
WO2008092779A1 (fr) * 2007-01-29 2008-08-07 Continental Automotive Gmbh Procédé et dispositif de correction de l'injection de carburant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19700738C1 (de) * 1997-01-11 1998-04-16 Daimler Benz Ag Verfahren zur Regelung der Einspritzmengen von Injektoren einer kraftstoffeinspritzenden Brennkraftmaschine
DE10357158A1 (de) * 2003-12-06 2005-07-14 Bayerische Motoren Werke Ag Verfahren zum Korrigieren der Einspritzdauer eines Injektors für eine Brennkraftmaschine
DE102005058445B3 (de) * 2005-12-07 2007-04-26 Siemens Ag Verfahren zur Ermittlung einer in einen Zylinder einer Brennkraftmaschine mit einer Common-Rail-Einspritzanlage eingespritzten Kraftstoffmemge und Mittel zur Durchführung des Verfahrens
WO2008092779A1 (fr) * 2007-01-29 2008-08-07 Continental Automotive Gmbh Procédé et dispositif de correction de l'injection de carburant

Also Published As

Publication number Publication date
DE102008033754A1 (de) 2010-01-21

Similar Documents

Publication Publication Date Title
DE102010016093B4 (de) Kraftstoffeinspritzerfassungsvorrichtung
DE102011052138B4 (de) Steuervorrichtung für Druckreduzierungsventile
DE102008036122B4 (de) Verfahren zur Adaption der Leistung einer Kraftstoffvorförderpumpe eines Kraftfahrzeugs
DE102007052096B4 (de) Verfahren zur Erkennung einer Kraftstoffsorte
WO2007134887A1 (fr) Procédé et dispositif pour commander une soupape d'injection d'un moteur à combustion interne
WO2010006960A1 (fr) Procédé pour déterminer la masse du carburant injecté
DE102009002793B4 (de) Common-Rail-Kraftstoffeinspritzsystem sowie Brennkraftmaschine, Elektronische Einrichtung und Verfahren zur Steuerung und/oder Regelung einer Brennkraftmaschine
DE102010042736B4 (de) Verfahren zur Mengenausgleichregelung bei einer Brennkraftmaschine
DE102011053839B4 (de) Kraftstoffeinspritzungszustandsdetektor
EP1884646A2 (fr) Procédé de commande dýun moteur à combustion interne
DE102008002482B4 (de) Verfahren und Vorrichtung zur Kalibrierung eines Kraftstoffzumesssystems einer Brennkraftmaschine insbesondere eines Kraftfahrzeugs
DE102005036192A1 (de) Verfahren zur Steuerung eines Einspritzsystems einer Brennkraftmaschine
EP1882841A2 (fr) Procédé de détection d'une pré-injection
WO2008132005A1 (fr) Procédé et dispositif de commande d'injection d'un moteur à combustion interne
DE102008001444A1 (de) Verfahren zum Bestimmen eines Überdrucks in einem Kraftstoffspeicher eines Einspritzsystems einer Brennkraftmaschine
DE102012217741A1 (de) Verfahren zur Plausibilisierung des Ausgangssignals eines Raildrucksensors
DE102011051105B4 (de) Vorrichtung zum Erfassen eines Kraftstoffeinspritzzustandes
DE102011075108A1 (de) Verfahren zum Bestimmen einer Steuermenge eines Injektors
DE102004053418B4 (de) Verfahren und Vorrichtung zur druckwellenkompensierenden Steuerung zeitlich aufeinanderfolgender Einspritzungen in einem Einspritzsystem einer Brennkraftmaschine
DE102007060768B4 (de) Verfahren zur Drifterkennung und Driftkompensation von Injektoren
DE102013201780B3 (de) Verfahren zum Ermitteln der Kraftstofftemperatur
DE102006043326A1 (de) Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
DE102008016662A1 (de) Verfahren und Einrichtung zum Einspritzen von Kraftstoff in einen Kraftfahrzeugmotor
EP1564394A2 (fr) Procédé et dispositif pour réguler un moteur à combustion interne
DE102011005981B4 (de) Verfahren zum Bestimmen einer Veränderung einer Steuermenge eines Injektors einer Brennkraftmaschine

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: 09780251

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: 09780251

Country of ref document: EP

Kind code of ref document: A1