EP1818526A2 - Réglage du rapport carburant-air dans des moteurs Otto - Google Patents

Réglage du rapport carburant-air dans des moteurs Otto Download PDF

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Publication number
EP1818526A2
EP1818526A2 EP20070001560 EP07001560A EP1818526A2 EP 1818526 A2 EP1818526 A2 EP 1818526A2 EP 20070001560 EP20070001560 EP 20070001560 EP 07001560 A EP07001560 A EP 07001560A EP 1818526 A2 EP1818526 A2 EP 1818526A2
Authority
EP
European Patent Office
Prior art keywords
fuel
internal combustion
combustion engine
running
air ratio
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Withdrawn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
EP20070001560
Other languages
German (de)
English (en)
Other versions
EP1818526A3 (fr
Inventor
Karl Stellwagen
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.)
Caterpillar Energy Solutions GmbH
Original Assignee
Deutz AG
Deutz Power Systems 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 Deutz AG, Deutz Power Systems GmbH filed Critical Deutz AG
Publication of EP1818526A2 publication Critical patent/EP1818526A2/fr
Publication of EP1818526A3 publication Critical patent/EP1818526A3/fr
Withdrawn legal-status Critical Current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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/08—Introducing corrections for particular operating conditions for idling
    • 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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
    • F02D19/021—Control of components of the fuel supply system
    • F02D19/023—Control of components of the fuel supply system to adjust the fuel mass or volume flow
    • 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
    • F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous

Definitions

  • the invention relates to a method for adjusting the air-fuel ratio, in particular the idle mixture, in reciprocating internal combustion engines according to the Otto liquid fuel and / or gasoline fuel principle by means of a fuel metering device such as fuel injection system or Gaszumisch issued or Heilzumess worn.
  • a fuel metering device such as fuel injection system or Gaszumisch issued or Heilzumess worn.
  • the air ratio indicates the ratio "amount of air supplied" to the "theoretical air requirement" and is about 1.
  • the lambda value varies considerably. This is done, for example, by changing the fuel injection quantity or the gas supply to the gas mixer. In special operating conditions, for example during start, warm-up and acceleration processes, an additional lambda reduction below 1 may be necessary.
  • the fuel-air ratio of engine start to engine start can vary greatly or during the starting phase and the subsequent idling change, for example, because in the gas supply line to the engine (still) a different gas composition than in the later main gas from a reservoir.
  • the object of the invention is to improve a generic type reciprocating internal combustion engine to the effect that the disadvantages described are resolved, that a safe start of the engine takes place and that a good operation at idle and at partial load is achieved.
  • the object of the invention is achieved in that the fuel-air ratio (air ratio lambda) is changed during the start phase until the engine starts.
  • the regulation of the mixture ie the air ratio lambda
  • the regulation of the mixture is adjusted to the synchronization or the smoothness of the internal combustion engine and is controlled by these variables. This is done in that after the start of the internal combustion engine, the synchronous / non-synchronous and / or smooth running / running unrest is measured and that the lambda value is changed so long and / or so far until the nonuniformity and / or the rough running of the internal combustion engine Minimum achieved. This preferably relates to the idle range.
  • the determination of the synchronism / nonuniformity or the smooth running / uneven running can be determined by measuring different engine parameters, for example by measuring torsional vibrations of a rotating component, in particular a flywheel of the internal combustion engine.
  • the acceleration on a main body of the internal combustion engine, for. B. on the crankcase or the cylinder head are determined, since a minimum vibration of the engine defines a minimum rough running.
  • Fig. 1, 1 denotes the operating range of the internal combustion engine, which is between about lambda 0.7 to about 1.3. 2 with a control cam is further referred to, which consists of an approximately straight area 3 and a changing area 4.
  • the internal combustion engine is already started, so that a change in the regulation of the air-fuel ratio occurs.
  • the control is carried out according to the minimum non-uniform running and / or the minimum running noise of the internal combustion engine.
  • the degree of nonuniformity of the internal combustion engine is determined on the torsional oscillations at the flywheel of the internal combustion engine, so that the internal combustion engine is adjusted to the minimum torsional vibrations by changing the air-fuel ratio, as the changing region 4 of the control curve 2 shows.
  • the mixture control in conjunction with the minimum rough running can be used advantageously for the partial load operation of the internal combustion engine.

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)
  • Output Control And Ontrol Of Special Type Engine (AREA)
EP20070001560 2006-02-11 2007-01-25 Réglage du rapport carburant-air dans des moteurs Otto Withdrawn EP1818526A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006006381A DE102006006381A1 (de) 2006-02-11 2006-02-11 Einstellen des Kraftstoff-Luft-Verhältnisses bei Otto-Motoren

Publications (2)

Publication Number Publication Date
EP1818526A2 true EP1818526A2 (fr) 2007-08-15
EP1818526A3 EP1818526A3 (fr) 2008-11-05

Family

ID=38048638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070001560 Withdrawn EP1818526A3 (fr) 2006-02-11 2007-01-25 Réglage du rapport carburant-air dans des moteurs Otto

Country Status (2)

Country Link
EP (1) EP1818526A3 (fr)
DE (1) DE102006006381A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3023618A1 (fr) * 2014-11-24 2016-05-25 GE Jenbacher GmbH & Co. OG Procede de demarrage d'un moteur a combustion interne fonctionnant avec le melange air/carburant
EP2249011A3 (fr) * 2009-04-30 2018-03-07 Ford Global Technologies, LLC Méthode et dispositif de contrôle du démarrage d'un moteur à combustion interne

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007028772B4 (de) * 2007-06-22 2017-10-26 Volkswagen Ag Verfahren zum Betreiben einer mit einem Gas als Kraftstoff betriebenen Brennkraftmaschine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19538732B4 (de) * 1995-10-18 2011-01-27 Robert Bosch Gmbh Verfahren zur Regelung des Warmlaufs in einer Brennkraftmaschine
DE19612453C2 (de) * 1996-03-28 1999-11-04 Siemens Ag Verfahren zum Bestimmen der in das Saugrohr oder in den Zylinder einer Brennkraftmaschine einzubringenden Kraftstoffmasse
US6152105A (en) * 1998-03-31 2000-11-28 Mazda Motor Corporation Idle speed control device for engine
JP3475102B2 (ja) * 1998-12-17 2003-12-08 本田技研工業株式会社 内燃機関の制御装置
DE10017389B4 (de) * 2000-04-07 2009-11-12 Volkswagen Ag Verfahren zur zylinderindividuellen Anpassung der Einspritzdauer für eine mehrzylindrige Brennkraftmaschine
DE10115969B4 (de) * 2001-03-27 2010-04-01 Volkswagen Ag Verfahren zur Ermittlung einer zugeführten Kraftstoffmenge während eines Startvorganges einer Verbrennungskraftmaschine
JP4410454B2 (ja) * 2002-04-03 2010-02-03 三菱自動車工業株式会社 内燃機関のアイドル回転数制御装置
DE10240492A1 (de) * 2002-09-03 2004-03-11 Robert Bosch Gmbh Verfahren zur Kalibrierung der Zylindersensorik einer zylinderindividuell betriebenen Brennkraftmaschine insbesondere eines Kraftfahrzeugs
DE10252423A1 (de) * 2002-11-12 2004-05-19 Robert Bosch Gmbh Verfahren zur Korrektur der Anfettung eines Kraftstoff/Luft-Gemisches

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2249011A3 (fr) * 2009-04-30 2018-03-07 Ford Global Technologies, LLC Méthode et dispositif de contrôle du démarrage d'un moteur à combustion interne
EP3023618A1 (fr) * 2014-11-24 2016-05-25 GE Jenbacher GmbH & Co. OG Procede de demarrage d'un moteur a combustion interne fonctionnant avec le melange air/carburant
AT516532B1 (de) * 2014-11-24 2019-10-15 Innio Jenbacher Gmbh & Co Og Verfahren zum Starten einer mit einem Brennstoff-Luft-Gemisch betriebenen Brennkraftmaschine

Also Published As

Publication number Publication date
EP1818526A3 (fr) 2008-11-05
DE102006006381A1 (de) 2007-08-16

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