EP1527267B1 - Procede pour ameliorer le fonctionnement regulier d'un moteur a combustion interne - Google Patents

Procede pour ameliorer le fonctionnement regulier d'un moteur a combustion interne Download PDF

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Publication number
EP1527267B1
EP1527267B1 EP03787596A EP03787596A EP1527267B1 EP 1527267 B1 EP1527267 B1 EP 1527267B1 EP 03787596 A EP03787596 A EP 03787596A EP 03787596 A EP03787596 A EP 03787596A EP 1527267 B1 EP1527267 B1 EP 1527267B1
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EP
European Patent Office
Prior art keywords
zgst
cylinder
internal combustion
factor
injection
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 - Lifetime
Application number
EP03787596A
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German (de)
English (en)
Other versions
EP1527267A1 (fr
Inventor
Klaus Joos
Thomas Frenz
Markus Amler
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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Filing date
Publication date
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Publication of EP1527267A1 publication Critical patent/EP1527267A1/fr
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Publication of EP1527267B1 publication Critical patent/EP1527267B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02D41/008—Controlling each cylinder individually
    • F02D41/0085—Balancing of cylinder outputs, e.g. speed, torque or air-fuel ratio
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D41/2096—Output circuits, e.g. for controlling currents in command coils for controlling piezoelectric 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/167—Means for compensating clearance or thermal expansion
    • 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
    • F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
    • F02D2200/1015—Engines misfires
    • 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
    • F02D41/1497—With detection of the mechanical response of the engine
    • F02D41/1498—With detection of the mechanical response of the engine measuring engine roughness
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/161—Means for adjusting injection-valve lift
    • 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
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators

Definitions

  • the invention relates to a method for compensating torque differences of the cylinders of an internal combustion engine, wherein the fuel injection system of the internal combustion engine for each cylinder has a variable displacement injector.
  • From the DE 33 36 028 A1 is a device for influencing control variables of an internal combustion engine known, with the help of which the votes of the individual cylinders services are individually controlled and approximated to each other. This results in the desired round run of the internal combustion engine.
  • the power control of the individual cylinders of the internal combustion engine takes place by the variation of the injection duration.
  • the changes of the valve lift of the injectors are limited to a range within which the valve lift can be controlled with sufficient precision.
  • a good concentricity of the internal combustion engine can also be achieved if the tolerances of the internal combustion engine or the injection valves are relatively large.
  • the concentricity is improved by changing the stroke of the injectors.
  • the small remaining correction range which is outside the maximum value and the minimum value of the cylinder equalization factor, is covered by a change in the injection duration. This change in the duration of injection is relatively low and does not adversely affect the mixture formation and the operating behavior of the internal combustion engine.
  • the method according to the invention can be implemented without additional costs, apart from the costs for programming the control unit.
  • the conversion of the correction factor into a drive voltage, or a charge can also be done indirectly by z.
  • a desired flow rate or a desired needle stroke or a desired Aktorhub is corrected and this target value is then converted into a drive voltage, or a charge.
  • the correction of the drive voltage is particularly simple if the drive voltage is corrected by multiplying by the cylinder equalization factor. Even with these embodiments of the method according to the invention, no changes to the injection system are required, with the exception of a reprogramming of the control unit.
  • the desired improvement in the smoothness of the internal combustion engine can also be achieved by a computer program or a control device for an internal combustion engine, which operate according to one of the previously described methods.
  • Fig. 1 shows a block diagram, based on which a first embodiment of the method according to the invention will be described below.
  • an electrically actuated injection valve (not shown) with a drive voltage U drive, i , or a charge Q i is controlled.
  • partial torques M i emitted by the cylinders of the internal combustion engine which add up to the total output of the internal combustion engine, are detected.
  • the detection of the partial moments M i does not necessarily include a direct measurement, but it may, for example Also, the observation and measurement of the rotational speed of the crankshaft and a correlation of this rotational speed with the ignition timing of the cylinder of the internal combustion engine done.
  • cylinder equalization factor is then formed for each cylinder, so that the smooth running of the engine is improved in consideration of the cylinder equalization factor.
  • cylinder equalization factor is designated by F ZGST, i . Also, this cylinder equalization factor F ZGST, i will usually be different for each cylinder Z i .
  • the drive voltage U is driving, i , or the charge Q i with the Cylinder equalization factor F ZGST, i multiplied.
  • the product of drive voltage U drive, i and cylinder equalization factor F ZGST, i is the corrected drive voltage or the corrected charge.
  • a further embodiment of the method according to the invention is shown as a block diagram.
  • the essential difference from the embodiment according to Fig. 1 is that the cylinder equalization factor F ZGST, i is limited by a maximum value F ZGST, Max and a minimum value F ZGST, Min in a limiter 1.
  • the limiter 1 has the in the Fig. 2 illustrated Characteristic, that is, when the cylinder equalization factor is smaller than the minimum value F ZGST, Min , the cylinder equalization factor F ZGST , i is set equal to the minimum value F ZGST, Min , and if the cylinder equalization factor F ZGST, i is greater than the maximum value F ZGST, Max , the Cylinder equalization factor F ZGST, i equal to the maximum value F ZGST, Max replaced. Otherwise, the cylinder equalization factor F ZGST i remains unchanged.
  • the limiter 1 optionally modified cylinder equalization factor F ZGST i , in the same way as based on the Fig. 1 explains, the drive voltage U drive, i , or the charge Q i of the injection valve (not shown) in a corrected drive voltage, or a corrected charge (not shown) converted.
  • Fig. 3 A description will be given of the method used when the cylinder equalization factor F ZGST , i is greater than the maximum value F ZGST, Max or less than the minimum value F ZGST, Min .
  • the basic idea with this supplement to the method is that the difference of the power of the cylinders Z i, which can not be compensated by the stroke of the injection valve, occurs as a result of a change in the cylinder- specific injection duration F T_injection i .
  • a correction factor F T injection i is set equal to 1.0 for the duration of the injection. If the test is positive, the correction factor F T_injection, i , is formed by forming a quotient of the cylinder equalization factor F ZGST, i and the maximum value F ZGST, Max .
  • the correction factor F T_ein mousse, i is greater than 1.0 in the case described last.
  • the correction factor F T injection i is set equal to 1.0. If this test is positive, the correction factor F T_injection, i is formed from the quotient of cylinder equalization factor F ZGST, i and the minimum value F ZGST , Min . In the case described last, the correction value F T_insprit, i now has a value less than 1.0.
  • Fig. 4 is shown how the injection time in response to the correction factor F T_ein mousse, i is corrected.
  • an injection valve 3 is shown schematically, which is suitable for carrying out the method according to the invention.
  • the injection valve 3 consists of a nozzle body 5 in which a nozzle needle 7 is guided.
  • end 9 of the injection valve 3 is a sealing seat (not shown) formed in the nozzle body 5, which cooperates with the nozzle needle 7, that when the nozzle needle 7 is opened, ie in the illustrated position of the injection valve 3 is moved to the left, the nozzle needle 7 lifts off from the sealing seat, not shown.
  • a coil spring 11 which is supported at one end on the nozzle body 5 and the other end to the nozzle needle 7, the nozzle needle 7 (not shown) in its sealing seat is moved when the injection valve 3 is de-energized.
  • a second coil spring 19 presses the piston 15 against the piezoelectric actuator 13, so that these two components are always connected to each other without play.
  • the injection valve 3 is supplied with fuel.

Abstract

L'invention concerne un procédé servant à améliorer le fonctionnement régulier de moteurs à combustion interne, notamment de moteurs à combustion interne comprenant une injection directe d'essence à guidage du jet. Le procédé selon l'invention est caractérisé en ce que l'amélioration du fonctionnement régulier est obtenue pratiquement par une variation de la course des soupapes d'injection.

Claims (8)

  1. Procédé de compensation du chevauchement de couple des cylindres (Zi, i = 1 à m) d'un moteur à combustion interne selon lequel le système d'injection de carburant du moteur comporte un injecteur (3) à course variable pour chaque cylindre (Zi),
    caractérisé par les étapes de procédé suivantes :
    - saisir des couples partiels (Mi) fournis par le moteur,
    - former un coefficient d'équilibrage de cylindre (FZGST,i) pour chaque cylindre (Zi), le coefficient d'équilibrage de cylindre (FZGST,i) étant limité vers le haut par une valeur maximale (FZGST,Max) et vers le bas par une valeur minimale (FZGST,Min),
    - corriger la course de l'injecteur (3) associé au cylindre (Zi) en fonction du coefficient d'équilibrage de cylindre (FZGST,i) et
    déterminer le coefficient de correction (FT-einspritz,i) pour la durée d'injection,
    selon lequel
    le coefficient de correction (FT-einspritz,i) est égal à 1,0 si le coefficient d'équilibrage de cylindre (FZGST,i) est inférieur à la valeur maximale (FZGST,Max) et supérieur à la valeur minimale (FZGST,Min),
    le coefficient de correction (FT-einspritz,i) étant égal au quotient du coefficient d'équilibrage de cylindre (FZGST,i) et de la valeur maximale (FZGST,Max) si le coefficient d'équilibrage de cylindre (FZGST,i) est supérieur à la valeur maximale (FZGST,Max) et
    le coefficient de correction (FT-einspritz,i) est égal au quotient du coefficient d'équilibrage de cylindre (FZGST,i) et de la valeur minimale (FZGST,Min) si le coefficient d'équilibrage de cylindre (FZGST,i) est inférieur à la valeur minimale (FZGST,Min).
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    la course de l'injecteur (3) est corrigée par un coefficient de correction d'une tension de commande (UAnsteuer, i) ou d'une charge électrique de l'injecteur (3) en fonction du coefficient d'équilibrage de cylindre (FZGST,i).
  3. Procédé selon la revendication 2,
    caractérisé en ce que
    la tension de commande (UAnsteuer, i) ou la charge électrique est corrigée par multiplication par le coefficient d'équilibrage de cylindre (FZGST,i).
  4. Procédé selon l'une des revendications précédentes,
    caractérisé en ce que
    la quantité à injecter dans le cylindre (Zi), demandée, est multipliée par le coefficient de correction ((FT-einspritz,i) et ensuite elle est convertie en une durée d'injection individuelle par cylindre (TEinspritz, i).
  5. Procédé selon l'une des revendications précédentes,
    caractérisé en ce qu'
    il est appliqué à des moteurs à combustion interne à injection directe d'essence, notamment à injection directe d'essence à guidage de jet.
  6. Programme d'ordinateur,
    caractérisé en ce qu'
    il fonctionne selon l'un des procédés précédents.
  7. Programme d'ordinateur selon la revendication 6,
    caractérisé en ce qu'
    il est enregistré sur un support de mémoire.
  8. Appareil de commande de moteur à combustion interne,
    caractérisé en ce qu'
    il fonctionne selon l'un des procédés et selon l'une des revendications 1 à 5.
EP03787596A 2002-07-25 2003-06-17 Procede pour ameliorer le fonctionnement regulier d'un moteur a combustion interne Expired - Lifetime EP1527267B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10233778 2002-07-25
DE2002133778 DE10233778A1 (de) 2002-07-25 2002-07-25 Verfahren zum Verbessern des Rundlaufs einer Brennkraftmaschine
PCT/DE2003/002005 WO2004016931A1 (fr) 2002-07-25 2003-06-17 Procede pour ameliorer le fonctionnement regulier d'un moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1527267A1 EP1527267A1 (fr) 2005-05-04
EP1527267B1 true EP1527267B1 (fr) 2008-02-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP03787596A Expired - Lifetime EP1527267B1 (fr) 2002-07-25 2003-06-17 Procede pour ameliorer le fonctionnement regulier d'un moteur a combustion interne

Country Status (4)

Country Link
EP (1) EP1527267B1 (fr)
JP (1) JP4327721B2 (fr)
DE (2) DE10233778A1 (fr)
WO (1) WO2004016931A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004006294B3 (de) * 2004-02-09 2005-10-13 Siemens Ag Verfahren zur Gleichstellung der Einspritzmengenunterschiede zwischen den Zylindern einer Brennkraftmaschine
DE102004006297B4 (de) * 2004-02-09 2007-05-16 Siemens Ag Verfahren zur Steuerung eines Einspritzventils einer Brennkraftmaschine
DE102005004442B4 (de) * 2005-01-31 2006-11-16 Siemens Ag Verfahren und Vorrichtung zum Steuern einer Brennkraftmaschine
DE102005010028B4 (de) 2005-03-04 2007-04-26 Siemens Ag Reglervorrichtung zur Kompensation von Streuungen von Injektoren
US8166953B2 (en) 2006-02-06 2012-05-01 Orbital Australia Pty Limited Fuel injection apparatus
DE102006039523A1 (de) * 2006-08-23 2008-02-28 Siemens Ag Verfahren zur Steuerung einer Kraftstoffeinspritzvorrichtung
DE102009045723A1 (de) 2009-10-15 2011-04-21 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
US20150039208A1 (en) * 2013-07-30 2015-02-05 GM Global Technology Operations LLC System and method for controlling air flow through an engine based on a fuel injection duration limit
DE102016112335A1 (de) 2016-07-06 2018-01-11 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Vorrichtung und Verfahren zur Ventilansteuerung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3336028C3 (de) * 1983-10-04 1997-04-03 Bosch Gmbh Robert Einrichtung zur Beeinflussung von Steuergrößen einer Brennkraftmaschine
DE19642653C5 (de) * 1996-10-16 2008-02-21 Daimler Ag Verfahren zur Bildung eines zündfähigen Kraftstoff/Luft-Gemisches
DE19700711C2 (de) * 1997-01-10 1999-05-12 Siemens Ag Verfahren zum Ausgleich des systematischen Fehlers an Einspritzvorrichtungen für eine Brennkraftmaschine
DE10026274A1 (de) * 2000-05-26 2001-12-06 Siemens Ag Verfahren zur Zylindergleichstellung bei einer Brennkraftmaschine
DE10206906C1 (de) * 2002-02-19 2003-11-06 Siemens Ag Verfahren zur Steuerung einer durch Pienoinjektor eingespritzten Kraftstoffmenge

Also Published As

Publication number Publication date
JP4327721B2 (ja) 2009-09-09
WO2004016931A1 (fr) 2004-02-26
DE10233778A1 (de) 2004-02-05
DE50309265D1 (de) 2008-04-10
JP2005533969A (ja) 2005-11-10
EP1527267A1 (fr) 2005-05-04

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