EP1381766B1 - Procede de detection de phases par modification lambda sur une ou plusieurs cylindres - Google Patents

Procede de detection de phases par modification lambda sur une ou plusieurs cylindres Download PDF

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Publication number
EP1381766B1
EP1381766B1 EP02729810A EP02729810A EP1381766B1 EP 1381766 B1 EP1381766 B1 EP 1381766B1 EP 02729810 A EP02729810 A EP 02729810A EP 02729810 A EP02729810 A EP 02729810A EP 1381766 B1 EP1381766 B1 EP 1381766B1
Authority
EP
European Patent Office
Prior art keywords
internal combustion
combustion engine
cylinders
phase angle
cylinder
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
EP02729810A
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German (de)
English (en)
Other versions
EP1381766A1 (fr
Inventor
Wolfgang Boerkel
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 EP1381766A1 publication Critical patent/EP1381766A1/fr
Application granted granted Critical
Publication of EP1381766B1 publication Critical patent/EP1381766B1/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
    • F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
    • 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

Definitions

  • Used encoder which is a rotatably connected to the crankshaft encoder wheel continuously scan.
  • sprockets which at one of the upper Dead center (TDC) of one of the pistons of the machine assigned location an irregularity exhibit.
  • the encoder only generates a clear signal for ignition or injection operations associated rotation angles, if such a process at each reaching a rotation angle must be triggered.
  • the power stroke over 720 ° crank angle so fall two the upper Dead center (TDC) corresponding signals.
  • DE 41 22 786 A1 relates to a method for the identification of an ignition or Injection process associated rotation angle of an internal combustion engine.
  • EP 0 826 099 B1 relates to a method for detecting the phase position of the cylinders of a Multi-cylinder four-stroke internal combustion engine.
  • a multi-cylinder Internal combustion engine with an ignition system for individual control of each cylinder equipped and includes a sensor for generating a signal, which allows the Passage of the piston of a reference cylinder of the internal combustion engine in a certain To identify position.
  • a cycle of several steps will be performed, starting with the reference cylinder and at a given moment coinciding with the passage of the piston of the Reference cylinder is connected in the predetermined position, a disturbance controlled in such a way is that a variation of the operation of the engine takes place.
  • the mode of operation observed from the engine and from the control of the fault in the Reference cylinder resulting possible variation of the operation detected and the moment the sudden occurrence of the variation of the mode of operation or a non-occurrence a variation of the operation of the engine determined.
  • the given Moment of control of the disturbance the detected moment of the sudden occurrence the variation in the operation of the engine or the absence of a variation contrasted with the operation of the engine to derive the phase of the engine cycle, in which the reference cylinder is in the specific position.
  • US 5,425,340 relates to a method for identifying cylinders for controlling an electronic Injection system for an internal combustion engine, which at a sequential Multipoint injection system can be used.
  • the crankshaft of the internal combustion engine is associated with a crankshaft sensor, which is the passage of the detected top dead centers each of the cylinders, which detects misfire occurring can be.
  • the injection of fuel into a selected reference cylinder prevented.
  • the Occurrence of a misfire detected Thereafter, a comparison of the time of Interruption of the fuel injection into the selected reference cylinder with the Time of occurrence of a misfire on the selected reference cylinder. Further becomes the passage of the TDC at the intake / compression stroke of the selected reference cylinder detected.
  • a signal sequence is formed, from which the cylinders of the internal combustion engine emerge that are in phase with the OT signal.
  • the production This signal sequence takes place at the time at which the detection of the intake / compression stroke-OT takes place and the combustion sequence according to the firing order the internal combustion engine is resumed.
  • phase position is assumed.
  • the assumed phase position may be e.g. the phase position be the crankshaft of the internal combustion engine, this when parking has taken.
  • the internal combustion engine is now with double ignition output started in the ignition and charge change TDC.
  • TDC ignition and charge change
  • the enrichment or leaning of the mixture of selected cylinders takes place only so far, that no dropouts can occur and is limited to a definable period.
  • the sum ⁇ can during the engagement on the mixture formation at the selected Cylinder or on the selected cylinders by appropriate intervention be kept to the desired value, whereby the internal combustion engine almost emits optimal exhaust gas.
  • the enrichment or emaciation of the mixture of the selected cylinder or the selected Cylinder of the internal combustion engine is only a short-term, hardly noticeable loss of comfort, which is significantly lower than a blanking the fuel injection at one of the cylinders of the internal combustion engine.
  • the intervention in the mixture formation takes place in suitable engine operating areas, in which optimal detection is possible. Keep the losses in terms of ride comfort limited in these engine operating ranges.
  • Suitable engine operating ranges for Make interventions in mixture formation on one selected or several selected cylinders of the internal combustion engine are those in which the speed the internal combustion engine remains largely constant, no pronounced Acceleration phases occur, i. in a partial load range of the internal combustion engine.
  • the internal combustion engine is a multi-cylinder internal combustion engine with even number of cylinders or even number of cylinders per bank for V-engines, can also be the evaluation of the air ratio ⁇ of the 360 ° crank angle to the selected cylinder offset cylinder. If this by 360 ° crank angle cylinder added to the selected reference cylinder produces the generated ⁇ change has, as was assumed at the start of the internal combustion engine phase position not correct. The attraction of the 360 ° crank angle offset to the selected cylinder Although cylinder for the detection of ⁇ changes is only on internal combustion engines given with straight number of cylinders or even number of cylinders per bank of V-engines, however, these are the most common four-stroke internal combustion engines to those with even number of cylinders.
  • the test procedure may e.g. after expiry of a presettable timer be repeated as often as desired, as appropriate for the execution of the test procedure Driving situation, i. achieved a suitable part load range of the internal combustion engine is.
  • the period after the expiration of a redetermination of the Phase detection can be carried out according to the method proposed according to the invention, are freely preselected, i. the intervals between the individual detection processes for determining the phase position of the internal combustion engine are flexible and adaptable.
  • the determination of air ratio changes through intervention in the mixture formation, be it emaciation, be it enrichment, at a selected cylinder or on selected cylinders of the internal combustion engine instead of suppressing fuel injection, the internal combustion engine can with almost normal exhaust gas behavior with regard to the sum ⁇ value operate. Unlike an injection suppression, they keep themselves adjusting comfort losses within narrow limits.
  • the inventively proposed Method for phase detection on a multi-cylinder combustion engine with failed phase encoder can be on internal combustion engines with even or odd Number of cylinders are used and allows safe phase detection, as the Occurrence of multiple events is observed. Thus, the reliability of the won Statement about the phase position very high, a lingering of the vehicle due a failed phase sensor is excluded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Claims (7)

  1. Procédé de détermination de phase d'un moteur à combustion interne multi-cylindres, à allumage commandé, comportant un nombre pair ou impair de cylindres et fonctionnant au moyen d'un système de gestion de moteur,
    selon lequel le cycle de travail de la machine à combustion interne s'étend sur au moins deux rotations de son arbre de sortie, et
    on démarre le moteur à combustion interne, lorsque la position de phase est inconnue, en faisant l'hypothèse d'une certaine position de phase,
    caractérisé par les étapes suivantes :
    lorsque la position de phase du moteur à combustion interne est inconnue, on le démarre en faisant l'hypothèse d'une certaine position de phase ;
    sur un ou plusieurs cylindres sélectionnés du moteur à combustion interne, on effectue une intervention dans la formation de mélange en vue d'un appauvrissement ou d'un enrichissement du mélange ;
    à l'aide de la détection d'une valeur d'excès d'air λ des cylindres individuels, on vérifie ou l'on falsifie la position de phase initialement supposée ; lorsque le gaz d'échappement associé au cylindre sélectionné (ou aux cylindres sélectionnés) ne présente aucun changement de la valeur d'excès d'air λ, correspondant à l'intervention dans la formation de mélange du cylindre sélectionné, on conclut à une falsification ; ou encore,
    lorsque le gaz d'échappement associé au cylindre sélectionné (ou aux cylindres sélectionnés) présente un changement de la valeur d'excès d'air λ en sens opposé à l'intervention dans la formation de mélange sur le cylindre sélectionné (ou les cylindres sélectionnés), à la suite de la compensation de l'ajustement de la valeur totale de λ à la valeur de λ antérieure à l'intervention dans la formation de mélange, on conclut à une falsification ;
    lorsque le gaz d'échappement associé aux cylindres décalés de 360° par rapport au cylindre sélectionné présente un changement du quotient d'air λ, correspondant à l'intervention dans la formation de mélange, on conclut à une falsification ; et
    dans le cas où la position de phase supposée est falsifiée, on rectifie un fonctionnement du moteur avec une double excitation d'allumage.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    l'on fait démarrer le moteur à combustion interne, en faisant l'hypothèse d'une certaine position de phase, avec une double excitation d'allumage à la fin du temps de compression et à la fin du temps de détente.
  3. Procédé selon la revendication 1,
    caractérisé en ce que
    la détection de phase de la machine à combustion interne dans un domaine de fonctionnement approprié du moteur à combustion interne du point de vue de la charge, de la vitesse de rotation ou de la température et de la capacité de fonctionnement d'une sonde λ.
  4. Procédé selon la revendication 1,
    caractérisé en ce que
    la position de phase initialement supposée du moteur à combustion interne est vérifiée lorsque l'on détecte un changement du quotient d'air λ, correspondant à l'intervention dans la formation de mélange sur le cylindre sélectionné.
  5. Procédé selon la revendication 4,
    caractérisé en ce que
    dans le cas où la position de phase du moteur à combustion interne est vérifiée, on annule la double excitation d'allumage et on débloque les événements synchrones en angle.
  6. Procédé selon la revendication 1,
    caractérisé en ce que
    dans le cas où la position de phase est falsifiée, on effectue une nouvelle synchronisation (ou un changement de synchronisation) de la position de phase du moteur à combustion interne.
  7. Procédé selon la revendication 1,
    caractérisé en ce que
    dans le cas où la détermination de la position de phase du moteur à combustion interne a échoué, on répète, au bout d'un intervalle de temps pré-définissable ou d'un nombre pré-définissable de fonctionnements cycliques (rotations) la détection de phase sur des cylindres identiques ou nouvellement sélectionnés.
EP02729810A 2001-04-04 2002-03-21 Procede de detection de phases par modification lambda sur une ou plusieurs cylindres Expired - Lifetime EP1381766B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10116815A DE10116815A1 (de) 2001-04-04 2001-04-04 Verfahren zur Phasendetektion mittels lambda-Änderung an einem oder mehreren Zylindern
DE10116815 2001-04-04
PCT/DE2002/001024 WO2002081890A1 (fr) 2001-04-04 2002-03-21 Procede de detection de phases par modification lambda sur une ou plusieurs cylindres

Publications (2)

Publication Number Publication Date
EP1381766A1 EP1381766A1 (fr) 2004-01-21
EP1381766B1 true EP1381766B1 (fr) 2005-09-14

Family

ID=7680380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02729810A Expired - Lifetime EP1381766B1 (fr) 2001-04-04 2002-03-21 Procede de detection de phases par modification lambda sur une ou plusieurs cylindres

Country Status (5)

Country Link
US (1) US20040112318A1 (fr)
EP (1) EP1381766B1 (fr)
JP (1) JP2004521230A (fr)
DE (2) DE10116815A1 (fr)
WO (1) WO2002081890A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7647914B2 (en) * 2005-11-18 2010-01-19 Ford Global Technologies, Llc Controlled port oxidation of direct injection spark ignition engines
US8899203B2 (en) * 2007-06-22 2014-12-02 Ford Global Technologies, Llc Engine position identification
CN109578139B (zh) * 2017-09-28 2021-02-19 光阳工业股份有限公司 多缸引擎的相位判定方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2692623B1 (fr) * 1992-06-23 1995-07-07 Renault Procede de reperage cylindres pour le pilotage d'un systeme d'injection electronique d'un moteur a combustion interne.
JP3646312B2 (ja) * 1996-03-01 2005-05-11 三菱自動車工業株式会社 内燃機関の気筒判別装置
FR2749885B1 (fr) * 1996-06-14 1998-07-31 Renault Procede pour produire un signal de synchronisation permettant le pilotage d'un systeme d'injection electronique d'un moteur a combustion interne
FR2754852B1 (fr) * 1996-10-18 1999-01-08 Renault Procede de synchronisation du systeme electronique de commande de moteur a combustion interne
ES2191734T3 (es) * 1996-12-03 2003-09-16 Fiat Ricerche Un metodo para sincronizar un motor de combustion interna sin un sensor de posicion de levas.
GB2342447A (en) * 1998-10-03 2000-04-12 Ford Motor Co Verifying engine cycle of an injection IC engine
US6148808A (en) * 1999-02-04 2000-11-21 Delphi Technologies, Inc. Individual cylinder fuel control having adaptive transport delay index

Also Published As

Publication number Publication date
US20040112318A1 (en) 2004-06-17
DE10116815A1 (de) 2002-11-07
WO2002081890A1 (fr) 2002-10-17
JP2004521230A (ja) 2004-07-15
DE50204265D1 (de) 2005-10-20
EP1381766A1 (fr) 2004-01-21

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