EP1802859A1 - Procede pour faire fonctionner un systeme d'injection de carburant en particulier d'un vehicule automobile - Google Patents

Procede pour faire fonctionner un systeme d'injection de carburant en particulier d'un vehicule automobile

Info

Publication number
EP1802859A1
EP1802859A1 EP05777980A EP05777980A EP1802859A1 EP 1802859 A1 EP1802859 A1 EP 1802859A1 EP 05777980 A EP05777980 A EP 05777980A EP 05777980 A EP05777980 A EP 05777980A EP 1802859 A1 EP1802859 A1 EP 1802859A1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
injection system
pilot control
fuel
control map
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.)
Withdrawn
Application number
EP05777980A
Other languages
German (de)
English (en)
Inventor
Peter Horstmann
Stefan Keller
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
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
Publication of EP1802859A1 publication Critical patent/EP1802859A1/fr
Withdrawn legal-status Critical Current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
    • F02D41/3836—Controlling the fuel pressure
    • F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
    • 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
    • F02D41/1402—Adaptive 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
    • F02D41/24—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
    • 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
    • F02D2041/141—Introducing closed-loop corrections characterised by the control or regulation method using a feed-forward control element
    • 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
    • F02D2041/1413—Controller structures or design
    • F02D2041/1422—Variable gain or coefficients
    • 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
    • F02D41/2409—Addressing techniques specially adapted therefor
    • F02D41/2416—Interpolation techniques
    • 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 a fuel injection system, in particular a motor vehicle according to the preamble of claim 1.
  • the invention also relates to a corresponding computer program, a corresponding electrical memory, a corresponding control unit and a corresponding fuel injection system, in particular for a motor vehicle.
  • Fuel injection system is not required.
  • the inventive method is thus easy and inexpensive to apply.
  • the output value of the I-controller is in an operating point of the fuel injection system in the pilot control map entered. This represents the learning process of the pilot control map.
  • FIG. 1 shows a schematic block diagram of an exemplary embodiment of a method according to the invention for operating a fuel injection system
  • FIG. 2 shows a detail of a pilot control map which is used in the method of FIG.
  • Fuel injection system 10 is in particular a high-pressure fuel injection system and the internal combustion engine may in particular be a diesel internal combustion engine for a motor vehicle.
  • the fuel injection system 10 has a pump 11, in particular a high-pressure pump, to which the fuel is supplied via a metering unit 12.
  • the pump 11 is connected on the output side to a fuel reservoir 13, in which the fuel is stored under pressure.
  • the fuel accumulator 13 is connected to injection valves, via which the fuel is injected into combustion chambers of the internal combustion engine.
  • the fuel accumulator 13 is associated with a pressure sensor 14, with which the pressure in the fuel storage 13 is measured.
  • a pre-control signal Vl is provided, which is added via an adder 26 to the control value DS.
  • a pilot control map 27 is provided, the output-side pilot signal V2 of which via an adder 28 to the control value DS for the
  • the desired fuel flow control value DS is supplied to a characteristic curve 29 representing the metering unit 12. With the aid of this characteristic curve 29, the control value SS for a current with which the metering unit 12 must be actuated in order to generate the desired fuel flow rate is determined from the control value DS.
  • This control value SS represents a desired value for a downstream current controller 30. From this current controller 30, the metering unit 12 is then assigned the control value SS corresponding current applied. The current actually flowing through the metering unit 12 is measured by a sensor 31 and given as actual value IW to a comparator 32. There, the actual value IW is subtracted from the control value SS. The difference then acts on the current regulator 30.
  • the actual pressure ID present in the fuel reservoir 13 is regulated to the desired pressure SD.
  • the desired pressure SD include the three
  • the metering units of various fuel injection systems are subject to production-related scattering.
  • the metering unit of a first fuel injection system for example, a different efficiency and thus a different characteristic than the metering unit of a second fuel injection system.
  • pilot control map 27 After the production of the fuel injection system 10, no values are contained in the pilot control map 27. From the pilot control map 27 so that only the value zero can be read. The pilot control map 27 at this time has no influence on the method 20 for operating the fuel injection system 10.
  • the current operating point Mx of the fuel injection system 10 thus does not coincide with any of the interpolation points MlI, M12, M21, M22 of the pilot control map 27.
  • the output value Ix of the I-controller 24 belonging to this operating point Mx is therefore sent to the four interpolation points MlI, M12, M21,
  • the values stored in the pilot control map 27 are read out and used as pre-control values V2 in the method 20 of FIG.
  • the I-controller 24 indicates a particular one
  • Output values always approximates over a time constant.
  • the I-controller 24 no longer has to supply an output signal, at least with regard to production-related deviations of the components of the fuel injection system 10.

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)
  • Fuel-Injection Apparatus (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un procédé (20) pour faire fonctionner un système d'injection de carburant (10) notamment d'un véhicule automobile. Le système d'injection de carburant (10) présente un accumulateur de carburant (13) auquel le carburant est acheminé par l'intermédiaire d'une unité de dosage (12). Selon ce procédé (20), un régulateur intégral (24), entre autres, influe sur la pression réelle (ID) régnant dans l'accumulateur de carburant (13). Une valeur de commande pilote (V2) est produite par un diagramme caractéristique de valeurs de commande pilote (27) au moyen duquel des écarts, inhérents à la production, des composants du système d'injection de carburant (10) sont compensés.
EP05777980A 2004-10-12 2005-08-18 Procede pour faire fonctionner un systeme d'injection de carburant en particulier d'un vehicule automobile Withdrawn EP1802859A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004049812.1A DE102004049812B4 (de) 2004-10-12 2004-10-12 Verfahren zum Betreiben einer Kraftstoffeinspritzanlage insbesondere eines Kraftfahrzeugs
PCT/EP2005/054071 WO2006040212A1 (fr) 2004-10-12 2005-08-18 Procede pour faire fonctionner un systeme d'injection de carburant en particulier d'un vehicule automobile

Publications (1)

Publication Number Publication Date
EP1802859A1 true EP1802859A1 (fr) 2007-07-04

Family

ID=35219617

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05777980A Withdrawn EP1802859A1 (fr) 2004-10-12 2005-08-18 Procede pour faire fonctionner un systeme d'injection de carburant en particulier d'un vehicule automobile

Country Status (6)

Country Link
US (1) US8276566B2 (fr)
EP (1) EP1802859A1 (fr)
JP (1) JP4773450B2 (fr)
CN (1) CN100467845C (fr)
DE (1) DE102004049812B4 (fr)
WO (1) WO2006040212A1 (fr)

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DE102005020686B4 (de) 2005-05-03 2007-08-02 Siemens Ag Verfahren und Vorrichung zum Steuern einer Kraftstoffzuführeinrichtung einer Brennkraftmaschine
DE102006057524B4 (de) * 2006-12-06 2016-05-19 Continental Automotive Gmbh Verfahren zur Adaption eines Widerstandsbeiwertes eines Mengenstellventils
DE102009046783A1 (de) 2009-11-17 2011-05-19 Robert Bosch Gmbh Verfahren und Vorrichtung zur Ansteuerung eines Mengensteuerventils
DE102010031570B4 (de) 2010-07-20 2021-11-25 Robert Bosch Gmbh Verfahren zum Bestimmen einer Charakteristik für ein Druckregelventil
WO2012035889A1 (fr) * 2010-09-17 2012-03-22 ボッシュ株式会社 Unité de commande pour élément de commande, unité de commande de la pression, unité de commande de la recirculation des gaz d'échappement et unité de commande de la pression de suralimentation
DE102011083068A1 (de) 2011-09-20 2013-03-21 Robert Bosch Gmbh Verfahren zum Bestimmen eines Werts eines Stroms
DE102013221981A1 (de) * 2013-10-29 2015-04-30 Robert Bosch Gmbh Verfahren zur Steuerung eines Druckregelventils einer Kraftstoffeinspritzanlage insbesondere eines Kraftfahrzeugs
DE102013221978A1 (de) 2013-10-29 2015-04-30 Robert Bosch Gmbh Verfahren zur Überwachung eines Drucksensors einer Kraftstoffeinspritzanlage insbesondere eines Kraftfahrzeugs
FI125058B (fi) * 2014-01-03 2015-05-15 Wärtsilä Finland Oy Ohjausjärjestelmä ja ohjausmenetelmä polttomoottoria varten, ja polttomoottori
FR3088375B1 (fr) 2018-11-14 2021-01-22 Continental Automotive France Procede de commande d'un moteur a combustion interne

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FR1134206A (fr) 1955-10-08 1957-04-09 Perfectionnements aux amortisseurs
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US5505180A (en) 1995-03-31 1996-04-09 Ford Motor Company Returnless fuel delivery mechanism with adaptive learning
JPH11327602A (ja) * 1998-05-08 1999-11-26 Denso Corp 誘導性負荷の駆動装置
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Also Published As

Publication number Publication date
DE102004049812B4 (de) 2017-09-14
US20110126807A1 (en) 2011-06-02
JP4773450B2 (ja) 2011-09-14
JP2008516151A (ja) 2008-05-15
CN100467845C (zh) 2009-03-11
WO2006040212A1 (fr) 2006-04-20
DE102004049812A1 (de) 2006-04-13
CN101040112A (zh) 2007-09-19
US8276566B2 (en) 2012-10-02

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