WO2010069779A1 - Procédé de détermination d'un mouvement d'induit d'une soupape d'injection - Google Patents

Procédé de détermination d'un mouvement d'induit d'une soupape d'injection Download PDF

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Publication number
WO2010069779A1
WO2010069779A1 PCT/EP2009/066357 EP2009066357W WO2010069779A1 WO 2010069779 A1 WO2010069779 A1 WO 2010069779A1 EP 2009066357 W EP2009066357 W EP 2009066357W WO 2010069779 A1 WO2010069779 A1 WO 2010069779A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical
magnetic circuit
internal combustion
combustion engine
electrical quantity
Prior art date
Application number
PCT/EP2009/066357
Other languages
German (de)
English (en)
Inventor
Klaus Joos
Helerson Kemmer
Holger Rapp
Anh-Tuan Hoang
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN200980151218.4A priority Critical patent/CN102257262B/zh
Publication of WO2010069779A1 publication Critical patent/WO2010069779A1/fr

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
    • F02D41/008—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
    • 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
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1409—Introducing closed-loop corrections characterised by the control or regulation method using at least a proportional, integral or derivative controller
    • 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
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1433—Introducing closed-loop corrections characterised by the control or regulation method using a model or simulation of the 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2051—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using voltage control
    • 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
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2055—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit with means for determining actual opening or closing time
    • 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
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
    • 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
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic 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
    • 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 invention relates to a method for operating an internal combustion engine according to the preamble of claim 1.
  • the invention further relates to a computer program, an electrical storage medium and a control and / or regulating device.
  • the object of the present invention is to provide a method which makes it possible to optimize the fuel injection.
  • the invention contributes to reducing the emissions of an internal combustion engine
  • the electrical quantity determined by the observer member includes an error that can be determined by comparison with the corresponding detected quantity.
  • This error provoked on the non-consideration of the reaction of the armature movement to the electrical magnitudes of the magnetic circuit, can now be used to quantify this retroactivity and thus permits the determination of a variable characterizing the armature movement.
  • the method according to the invention thus operates without any additional component and can be realized solely by software. It is therefore extremely inexpensive and possibly even applicable to existing systems.
  • Step b the difference between the observed second electrical quantity and the detected second electrical variable is formed, and that in step e, the difference is fed to a feedback element, which determines a first electrical correction quantity, which is added to the detected first electrical variable, in such a way that the difference between the observed second electrical quantity and the detected second electrical quantity becomes minimal, the course of the first electrical correction variable is summed up, and a stroke characteristic from the accumulated first electrical correction quantity is determined as a variable characterizing the armature movement.
  • the deliberately provoked error at the output of the observer member is so via the feedback link to the input of the observer member so that it minimally, at best, to zero.
  • the correction variable output for this purpose from the feedback element can be used directly for determining the stroke course of the armature.
  • the first electrical quantity is a voltage and the second electrical quantity is a current.
  • the feedback element can be a proportional element, a PIL element or a higher-order feedback element.
  • the feedback characteristic between the speed of the armature and the correction quantity is expressed by the feedback element.
  • the inventive method can also be used for equality of the individual fuel injection valves.
  • the operation of the internal combustion engine is evened out and vibrations are reduced.
  • An example of this is that by means of the determined variables characterizing the armature movement of the individual injection valves, the times of a stroke maximum of the injection valves are equalized. Equality means that these respective events take place at the same crank angle, for example, at a top dead center of the respective cylinder.
  • the periods from the start of a control to the closing of the injectors can be equated, or it can be equated the periods from Hubmaximum to close the injectors. Due to the knowledge of the valve needle movement can be equated with knowledge of additional parameters, such as the fuel pressure, by means of the determined, the armature movements characterizing sizes and the injection quantities of the injectors.
  • Figure 1 is a schematic representation of an internal combustion engine having a plurality of electromagnetically actuated injection valves
  • FIG. 2 shows an equivalent circuit diagram of a magnetic circuit of an injection valve of FIG
  • Figure 3 is a block diagram of the magnetic circuit of Figure 2;
  • Figure 4 is a block diagram of a method for determining a correction quantity using an observer member corresponding to the magnetic circuit of Figure 3;
  • FIG. 5 shows two diagrams in which the profile of a drive current and the stroke characteristics of three different emission valves are shown over time, without equality;
  • FIG. 6 shows two diagrams, similar to Figure 5, with equality of the period from the start of a drive to close the injectors
  • FIG. 7 shows two diagrams similar to FIG. 5 with an equalization of the times of the stroke maxima
  • Figure 8 shows two diagrams similar to Figure 5 with an equality of the periods from Hubmaximum to close the injectors.
  • an internal combustion engine bears the reference numeral 10 as a whole. It comprises a tank 12, from which a delivery system 14 delivers fuel into a common rail 16. To this a plurality of electromagnetically actuated Einspritzve- valves 18a to 18d are connected, which the fuel directly in them
  • Inject combustion chambers 20a to 2Od The operation of the internal combustion engine 10 is controlled or regulated by a control and regulating device 22 which, among other things, also controls the injection valves 18a to 18d.
  • FIG. 1 An equivalent circuit diagram of a simplified magnetic circuit 44 of the electromagnetic actuator of the valves 18a-18d is shown in FIG. With 46 is the main current path and 48 denotes the eddy current path.
  • an equivalent circuit diagram can be adopted, which does not imitate the vortex Ström pf ad.
  • a corresponding block diagram of the magnetic circuit 44 is shown in FIG. The parameters of the block diagram result from those of the equivalent circuit of Figure 2 by normalization of current and voltage.
  • the eddy current path is reproduced in the equivalent circuit diagram of FIG. 2 by the components Rw * and L s -, in the block diagram of FIG. 3 by the integrator 50 with the time constant T s and the proportional element 52 with the gain K RW in the feedback path.
  • Magnetic circuit of the injection valves 18a to 18d This difference is how will be explained below, used to determine a characterizing the movement of the armature size.
  • the real magnetic circuit of an injection valve 18 is designated in FIG. 4 by applying a voltage u, which can also be referred to as the detected first electrical variable of the real magnetic circuit 54, This results in a drive current i, which can be referred to as detected second electrical variable of the real magnetic circuit 54.
  • the drive voltage u is supplied to an observer member 56 which corresponds to the simplified magnetic circuit 44 according to the block diagram of FIG.
  • Output variable of the observer member 56 is an observed coil current i b , which can be referred to as observed second electrical variable of the theoretical magnetic circuit 44 so far.
  • the difference di b between the observed coil current i b and the detected coil current i is formed and fed to a feedback element 60 as an input variable.
  • This feedback element 60 may be, for example, a proportional element, a PIL element or else a higher-order feedback element and / or more complex structure.
  • the transmission behavior between the speed of the magnet armature 30 and an output variable U corr may be, for example, a proportional element, a PIL element or else a higher-order feedback element and / or more complex structure.
  • Feedback element 60 expressed and so far also influenced.
  • filtering of interference signals on the detected signals of the coil current i and / or the voltage u can thus be implemented implicitly.
  • the output u kOrr which can also be referred to as the first electrical correction variable , is now added to the input of the observer member 56 in 62 additive.
  • the observed coil current i b is tracked to the measured coil current i, ie the difference di b is minimized or made zero.
  • a drive current i for the injection valves 18a to 18c is plotted over time in the upper diagram.
  • This drive current i is identical for all three injection valves 18a to 18c, the corresponding curve is designated 64 in FIG.
  • the lift profiles of the three injection valves 18a to 18c resulting from the drive current are plotted, which leads to corresponding curves 66a to 66c.
  • the curve 66a of the injector 18a may be referred to as a base curve for normal behavior.
  • the curve 66b of the injection valve 18b shows that this injection valve 18b has a so-called reduced opening dead time.
  • the curve 66c of the injection valve 18c shows that this injection valve 18c has a reduced opening dead time and additionally an increased opening speed. It can be seen immediately that without equality measures, different end times of the fuel injection and different injection quantities result.
  • the times of a maximum lift are identified, which are designated by 70 in FIG. 7 in the lower diagram.
  • the closing times ie the periods from the stroke maximum to the closing of the injection valves 18a to 18c are equalized. These are designated 72 in FIG.

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  • 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)
  • Fuel-Injection Apparatus (AREA)

Abstract

L'invention concerne un moteur à combustion interne dans lequel le carburant atteint une chambre de combustion au moyen d'une soupape d'injection comprenant un dispositif d'actionnement électromagnétique. Selon l'invention, une première grandeur électrique (n) détectée d'un circuit magnétique du dispositif d'actionnement électromagnétique est amenée à un élément d'observation (56), qui reproduit le circuit magnétique sans tenir compte de la répercussion d'un mouvement d'induit sur les grandeurs électriques du circuit magnétique. L'élément d'observation (56) détermine une seconde grandeur électrique (ib) observée du circuit magnétique; cette seconde grandeur électrique déterminée est comparée à une seconde grandeur électrique (i) détectée, et le résultat de la comparaison (dib) est utilisé pour déterminer une grandeur caractérisant le mouvement d'induit.
PCT/EP2009/066357 2008-12-19 2009-12-03 Procédé de détermination d'un mouvement d'induit d'une soupape d'injection WO2010069779A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200980151218.4A CN102257262B (zh) 2008-12-19 2009-12-03 用于求得喷射阀的电枢运动的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008055008.6 2008-12-19
DE102008055008.6A DE102008055008B4 (de) 2008-12-19 2008-12-19 Verfahren zum Betreiben einer Brennkraftmaschine

Publications (1)

Publication Number Publication Date
WO2010069779A1 true WO2010069779A1 (fr) 2010-06-24

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Application Number Title Priority Date Filing Date
PCT/EP2009/066357 WO2010069779A1 (fr) 2008-12-19 2009-12-03 Procédé de détermination d'un mouvement d'induit d'une soupape d'injection

Country Status (3)

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CN (1) CN102257262B (fr)
DE (1) DE102008055008B4 (fr)
WO (1) WO2010069779A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009054589A1 (de) 2009-12-14 2011-06-16 Robert Bosch Gmbh Verfahren und Steuergerät zum Betreiben eines Ventils

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425987A1 (de) * 1994-07-22 1996-01-25 Bosch Gmbh Robert Verfahren und Vorrichtung zur Ansteuerung eines elektromagnetischen Verbrauchers
DE19834405A1 (de) * 1998-07-30 2000-02-03 Bosch Gmbh Robert Verfahren zur Schätzung eines Nadelhubs eines Magnetventils
DE10220388A1 (de) * 2001-05-07 2002-11-28 Hyundai Motor Co Ltd Nadelhub-Abschätzvorrichtung einer Kraftstoffeinspritzdüse mit gemeinsamer Druckleitung
EP1302952A2 (fr) * 2001-10-12 2003-04-16 Schultz, Wolfgang E., Dipl.-Ing. Procédé et circuit pour la détection de la position de l'armature d'un électroaimant
WO2004102600A1 (fr) * 2003-05-13 2004-11-25 Wärtsilä Finland Oy Procede de commande de fonctionnement d'un solenoide
EP1806494A2 (fr) * 2005-09-20 2007-07-11 Siemens Aktiengesellschaft Dispositif et méthode pour détecter la fin du déplacement d'un piston dans une valve
DE102006009920A1 (de) * 2006-03-03 2007-09-06 Robert Bosch Gmbh Bestimmung zylinderindividueller Korrekturwerte der Einspritzmenge einer Brennkraftmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20030642A1 (it) * 2003-10-31 2005-05-01 Magneti Marelli Powertrain Spa Metodo per il pilotaggio di un iniettore con verifica
DE102007023898A1 (de) * 2007-05-23 2008-11-27 Robert Bosch Gmbh Verfahren zum Ansteuern eines Einspritzventils

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4425987A1 (de) * 1994-07-22 1996-01-25 Bosch Gmbh Robert Verfahren und Vorrichtung zur Ansteuerung eines elektromagnetischen Verbrauchers
DE19834405A1 (de) * 1998-07-30 2000-02-03 Bosch Gmbh Robert Verfahren zur Schätzung eines Nadelhubs eines Magnetventils
DE10220388A1 (de) * 2001-05-07 2002-11-28 Hyundai Motor Co Ltd Nadelhub-Abschätzvorrichtung einer Kraftstoffeinspritzdüse mit gemeinsamer Druckleitung
EP1302952A2 (fr) * 2001-10-12 2003-04-16 Schultz, Wolfgang E., Dipl.-Ing. Procédé et circuit pour la détection de la position de l'armature d'un électroaimant
WO2004102600A1 (fr) * 2003-05-13 2004-11-25 Wärtsilä Finland Oy Procede de commande de fonctionnement d'un solenoide
EP1806494A2 (fr) * 2005-09-20 2007-07-11 Siemens Aktiengesellschaft Dispositif et méthode pour détecter la fin du déplacement d'un piston dans une valve
DE102006009920A1 (de) * 2006-03-03 2007-09-06 Robert Bosch Gmbh Bestimmung zylinderindividueller Korrekturwerte der Einspritzmenge einer Brennkraftmaschine

Also Published As

Publication number Publication date
DE102008055008B4 (de) 2018-08-09
DE102008055008A1 (de) 2010-06-24
CN102257262A (zh) 2011-11-23
CN102257262B (zh) 2014-01-29

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