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EP1068435B1 - Systeme d'alimentation en carburant pour un moteur a combustion interne notamment d'un vehicule automobile - Google Patents

Systeme d'alimentation en carburant pour un moteur a combustion interne notamment d'un vehicule automobile Download PDF

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Publication number
EP1068435B1
EP1068435B1 EP00910505A EP00910505A EP1068435B1 EP 1068435 B1 EP1068435 B1 EP 1068435B1 EP 00910505 A EP00910505 A EP 00910505A EP 00910505 A EP00910505 A EP 00910505A EP 1068435 B1 EP1068435 B1 EP 1068435B1
Authority
EP
European Patent Office
Prior art keywords
internal combustion
combustion engine
pressure
control valve
pressure control
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
EP00910505A
Other languages
German (de)
English (en)
Other versions
EP1068435A1 (fr
Inventor
Helmut Rembold
Ferdinand Grob
Hartmut Bauer
Uwe Maienberg
Klaus Scherrbacher
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 EP1068435A1 publication Critical patent/EP1068435A1/fr
Application granted granted Critical
Publication of EP1068435B1 publication Critical patent/EP1068435B1/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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • 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

Definitions

  • the invention relates to a method for operating a Fuel supply system for an internal combustion engine in particular a motor vehicle in which fuel from a pump is pumped into a pressure accumulator, and in which the pressure in the pressure accumulator by means of a Pressure control valve is controllable and / or adjustable. Furthermore the invention relates to a corresponding program corresponding storage medium and a corresponding one Control device for an internal combustion engine.
  • the fuel is injected into the combustion chamber under pressure.
  • a pressure accumulator in which the fuel pumped by means of a pump and under high pressure is set. From there the fuel is then over Injectors in the combustion chambers of the internal combustion engine injected.
  • the object of the invention is to provide a method for operating of a fuel supply system for an internal combustion engine to create with the best possible start of the Internal combustion engine is feasible.
  • Closing the pressure control valve turns on Defined state of the internal combustion engine for the impending startup process. It will also achieved that the pressure in the pressure accumulator no longer continues to fall.
  • the pressure control valve turns on by turning on the ignition closed, and is switched on by this ignition also the pump for feeding fuel into the pressure accumulator switched on, this means that the pressure in the The pressure accumulator depends on the delivery rate of the pump and possibly increases accordingly. This is for that intended starting of the internal combustion engine in particular advantageous.
  • the specified speed limit is exceeded simple way of transitioning control and / or regulation the internal combustion engine from the starting process in the Normal operation reached.
  • Pressure control valve at least partially opened when the Internal combustion engine is started and the first There are rotational movements. So it is possible to print in the pressure accumulator with the help of the pressure control valve control and / or regulate.
  • the pressure control valve depending on the number of injections already carried out in the internal combustion engine open.
  • the internal combustion engine can thus be operated in a simple manner be adapted to the course of the starting process.
  • control element that for a control unit of an internal combustion engine, in particular of a motor vehicle is provided. It is on the Control stored a program on a Computing device, in particular on a microprocessor, executable and for executing the invention Process is suitable.
  • a control element an electrical storage medium is used, for example a read-only memory.
  • Fuel supply system 1 shows a fuel supply system 1 shown for use in an internal combustion engine a motor vehicle is provided.
  • Fuel supply system 1 is a so-called common rail system, which is particularly in one Internal combustion engine with gasoline direct injection Application comes.
  • the fuel supply system 1 has a pressure accumulator 2 on, with a pressure sensor 3 and a Pressure control valve (DSV) 4 is provided.
  • the accumulator 2 is via a pressure line 5 with a high pressure pump 6 connected.
  • the high pressure pump 6 is with the Internal combustion engine coupled and generates a high pressure with the internal combustion engine rotating.
  • the high pressure pump 6 is to the pressure control valve 4 via a pressure line 8 connected.
  • Via a pressure line 9 and a filter is the pressure control valve 4 and thus the High-pressure pump 6 with an electric fuel pump 10 connected, which is suitable for fuel from a Suction fuel tank 11.
  • the electrical Fuel pump 10 generates pressure as soon as one There is tension on it. This is at least for a short time Case when the ignition of the motor vehicle is turned on is.
  • the fuel supply system 1 has four Injectors 13 on the pressure lines 14 with the Pressure accumulator 2 are connected.
  • the injectors 13 are suitable for fuel in appropriate combustion chambers to inject the internal combustion engine.
  • the pressure sensor 3 is connected by means of a signal line 15 connected to a control unit 16 to which a further A plurality of signal lines other than input lines are connected.
  • a signal line 17 Fuel pump 10 and via a signal line 18 is that Pressure control valve 4 connected to the control unit 16.
  • Pressure control valve 4 connected to the control unit 16.
  • Of the injection valves 13 are also means Signal lines 19 connected to the control unit 16.
  • the fuel from the fuel pump 10 to the fuel tank 11 the high pressure pump 6 is pumped.
  • a pressure is generated in the pressure accumulator 2 the pressure sensor 3 is measured and by a corresponding actuation of the pressure control valve 4 and / or Control of the fuel pump 10 to a desired value can be controlled and / or regulated.
  • About the Injector 13 is then the fuel in the Combustion chambers of the internal combustion engine injected.
  • the quantity of fuel to be injected is, among others Pressure in the pressure accumulator 2 is essential.
  • This pressure in the pressure accumulator 2 can be from can be controlled and / or regulated by the control unit 16.
  • control device 16 Speed of the fuel pump 10 increases, resulting in a increased delivery capacity of the fuel pump 10 leads and has an increased pressure in the pressure accumulator 2.
  • the increase in this pressure and thus the increase in Speed or the delivery rate of the fuel pump 10 can also be determined via the pressure sensor 3.
  • the binary signals After the time t1, the binary signals have Bst and Bstend following properties.
  • the binary signal Bst is only then “1" when the ignition is switched on, the starter Internal combustion engine in a rotary motion, the Internal combustion engine but a predetermined speed limit NG has not yet exceeded.
  • the binary signal is Bstend then "1" when the starting of the internal combustion engine ends is, the internal combustion engine the predetermined speed limit NG has exceeded.
  • the two binary signals Bst and Based on two inverters 22, 23 inverted and an AND gate 24 fed.
  • the AND gate 24 becomes a binary one "1" generates the switch 20 in that state transferred, which is not shown in Figure 2.
  • the starter moves the Internal combustion engine in a rotary motion. So that will be Binary signal Bst to "1".
  • the speed N is also the Internal combustion engine not equal to zero and increases. As soon as the Internal combustion engine due to the injections carried out of fuel into their own combustion chambers Force executes a rotary movement, the speed N der increases Internal combustion engine continues. The internal combustion engine is started.
  • the map 25 is dependent on the temperature TM Internal combustion engine and the number of ATI injections, which at the present start of the Internal combustion engine have already been run. It is possible that the map 25 alternatively and / or additionally also from other operating variables of the internal combustion engine is dependent.
  • the clock ratio generated by the map V mostly controls the pressure control valve 4 open, at least not in a closed state. Intermediate states are also possible.
  • Pressure control valve 4 Before time t1, i.e. before switching on the ignition and before starting the starter, it can Pressure control valve 4 opened in any state or be closed.
  • the pressure control valve 4 At time t2, i.e. with the ignition switched on and itself rotating starter, the pressure control valve 4 at least partially open. This condition is up to date Maintain t3, that is, until the start of the Internal combustion engine ended and the speed limit NG is reached. Due to the generated by the starter low speed comes with the internal combustion engine coupled high-pressure pump 6 not yet effective. The Pressure in the pressure accumulator 2 is therefore during this period largely dependent on the electric fuel pump 10th

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)

Claims (7)

  1. Procédé pour faire fonctionner un système d'alimentation en carburant (1) pour un moteur à combustion interne, en particulier d'un véhicule automobile, selon lequel du carburant est refoulé par une pompe (6, 10) dans un accumulateur de pression (2), et la pression régnant dans l'accumulateur de pression peut être commandée et/ou réglée au moyen d'une soupape de commande de pression, la soupape de commande de pression (4) étant fermée lorsque le moteur à combustion interne doit être mis en marche mais lorsqu'il n'y a pas encore de mouvement de rotation,
    caractérisé en ce que
    la soupape de commande de pression (4) est commandée et/ou réglée selon un fonctionnement normal lorsqu'une limite prédéterminée de vitesse de rotation (NG) est dépassée.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    la soupape de commande de pression (4) est ouverte au moins partiellement lorsque le moteur à combustion interne est mis en marche et exécute les premiers mouvements de rotation.
  3. Procédé selon la revendication 2,
    caractérisé en ce que
    la soupape de commande de pression (4) est ouverte en fonction de la température (TM) du moteur à combustion interne.
  4. Procédé selon la revendication 2 ou 3,
    caractérisé en ce que
    la soupape de commande de pression (4) est ouverte en fonction d'un nombre (ATI) des injections déjà exécutées dans le moteur à combustion interne.
  5. Programme,
    caractérisé en ce qu'
    il est programmé pour être utilisé dans un procédé selon l'une des revendications 1 à 4.
  6. Moyen de mémoire électrique pour un appareil de commande (16) d'un moteur à combustion interne,
    caractérisé en ce que
    sur ce moyen est mémorisé un programme destiné à être appliqué dans un procédé selon l'une des revendications 1 à 4,
  7. Appareil de commande (16) pour un moteur à combustion interne,
    caractérisé en ce qu'
    il est conçu pour être utilisé dans un procédé selon l'une des revendications 1 à 4.
EP00910505A 1999-01-28 2000-01-27 Systeme d'alimentation en carburant pour un moteur a combustion interne notamment d'un vehicule automobile Expired - Lifetime EP1068435B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19903273 1999-01-28
DE19903273A DE19903273A1 (de) 1999-01-28 1999-01-28 Kraftstoffversorgungssystem für eine Brennkraftmaschine insbesondere eines Kraftfahrzeugs
PCT/DE2000/000230 WO2000045037A1 (fr) 1999-01-28 2000-01-27 Systeme d"alimentation en carburant pour un moteur a combustion interne notamment d"un vehicule automobile

Publications (2)

Publication Number Publication Date
EP1068435A1 EP1068435A1 (fr) 2001-01-17
EP1068435B1 true EP1068435B1 (fr) 2004-12-22

Family

ID=7895599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00910505A Expired - Lifetime EP1068435B1 (fr) 1999-01-28 2000-01-27 Systeme d'alimentation en carburant pour un moteur a combustion interne notamment d'un vehicule automobile

Country Status (6)

Country Link
US (1) US6408822B1 (fr)
EP (1) EP1068435B1 (fr)
JP (1) JP2002535557A (fr)
DE (2) DE19903273A1 (fr)
ES (1) ES2233342T3 (fr)
WO (1) WO2000045037A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10151513A1 (de) * 2001-10-18 2003-05-22 Bosch Gmbh Robert Verfahren, Computerprogramm, Steuer- und Regelgerät zum Betreiben einer Brennkraftmaschine, sowie Brennkraftmaschine
JP3893953B2 (ja) * 2001-11-26 2007-03-14 株式会社デンソー 燃料供給・噴射システム
US7318414B2 (en) * 2002-05-10 2008-01-15 Tmc Company Constant-speed multi-pressure fuel injection system for improved dynamic range in internal combustion engine
DE10301236B4 (de) * 2003-01-15 2017-08-17 Robert Bosch Gmbh Verfahren zum Starten einer Brennkraftmaschine, insbesondere einer Brennkraftmaschine mit Direkteinspritzung
JP4045594B2 (ja) * 2003-04-08 2008-02-13 株式会社デンソー 蓄圧式燃料噴射装置
US7093576B2 (en) * 2004-06-15 2006-08-22 Ford Global Technologies, Llc System and method to prime an electronic returnless fuel system during an engine start
US8151767B2 (en) * 2007-08-08 2012-04-10 Ford Global Technologies, Llc Fuel control for direct injection fuel system
US7832375B2 (en) * 2008-11-06 2010-11-16 Ford Global Technologies, Llc Addressing fuel pressure uncertainty during startup of a direct injection engine
US8210156B2 (en) * 2009-07-01 2012-07-03 Ford Global Technologies, Llc Fuel system with electrically-controllable mechanical pressure regulator
US8166943B2 (en) * 2009-07-31 2012-05-01 Ford Global Technologies, Llc Fuel system control
US8776764B2 (en) * 2011-01-04 2014-07-15 Ford Global Technologies, Llc Fuel system for a multi-fuel engine
US9587578B2 (en) 2013-12-06 2017-03-07 Ford Global Technologies, Llc Adaptive learning of duty cycle for a high pressure fuel pump
US9243598B2 (en) 2014-02-25 2016-01-26 Ford Global Technologies, Llc Methods for determining fuel bulk modulus in a high-pressure pump
US9458806B2 (en) 2014-02-25 2016-10-04 Ford Global Technologies, Llc Methods for correcting spill valve timing error of a high pressure pump
US9874185B2 (en) 2014-05-21 2018-01-23 Ford Global Technologies, Llc Direct injection pump control for low fuel pumping volumes
CN114180077B (zh) * 2021-12-21 2024-02-27 中国航发沈阳发动机研究所 一种航空发动机加速供油规律自适应调整方法

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DE3304605A1 (de) * 1982-02-12 1983-08-25 Steyr Daimler Puch Ag Kraftstoff-einspritzanlage fuer eine elektrische, ein startschloss umfassende anlasseinrichtung aufweisende kraftfahrzeug-dieselmotoren

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GB8613465D0 (en) * 1986-06-04 1986-07-09 Lucas Ind Plc Fuel pumping apparatus
DE4136833A1 (de) * 1991-11-08 1993-05-13 Bayerische Motoren Werke Ag Anordnung zur kraftstoff-versorgung einer brennkraftmaschine
US5207203A (en) * 1992-03-23 1993-05-04 General Motors Corporation Fuel system
JPH06129322A (ja) * 1992-10-15 1994-05-10 Fuji Heavy Ind Ltd 高圧噴射式エンジンの燃料圧力制御方法
DE4321718A1 (de) * 1993-06-30 1995-01-12 Bosch Gmbh Robert Kraftstoffeinspritzpumpe für Brennkraftmaschinen
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DE19539885A1 (de) * 1995-05-26 1996-11-28 Bosch Gmbh Robert Kraftstoffversorgungsanlage und Verfahren zum Betreiben einer Brennkraftmaschine
JP3939779B2 (ja) * 1995-05-26 2007-07-04 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング 内燃機関の燃料供給のための燃料供給装置
JP3594144B2 (ja) * 1995-08-30 2004-11-24 株式会社デンソー 燃料供給装置
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FR2763100B1 (fr) 1997-05-09 1999-07-23 Magneti Marelli France By-pass de delestage pour pompe a injection directe a haute pression
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Publication number Priority date Publication date Assignee Title
DE3304605A1 (de) * 1982-02-12 1983-08-25 Steyr Daimler Puch Ag Kraftstoff-einspritzanlage fuer eine elektrische, ein startschloss umfassende anlasseinrichtung aufweisende kraftfahrzeug-dieselmotoren

Also Published As

Publication number Publication date
ES2233342T3 (es) 2005-06-16
JP2002535557A (ja) 2002-10-22
US6408822B1 (en) 2002-06-25
WO2000045037A1 (fr) 2000-08-03
DE19903273A1 (de) 2000-08-10
EP1068435A1 (fr) 2001-01-17
DE50008997D1 (de) 2005-01-27

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