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EP1608861A1 - Dispositif de commande d'un moteur a combustion interne - Google Patents

Dispositif de commande d'un moteur a combustion interne

Info

Publication number
EP1608861A1
EP1608861A1 EP04820452A EP04820452A EP1608861A1 EP 1608861 A1 EP1608861 A1 EP 1608861A1 EP 04820452 A EP04820452 A EP 04820452A EP 04820452 A EP04820452 A EP 04820452A EP 1608861 A1 EP1608861 A1 EP 1608861A1
Authority
EP
European Patent Office
Prior art keywords
lam
cylinder
air
fuel ratio
estimated value
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.)
Granted
Application number
EP04820452A
Other languages
German (de)
English (en)
Other versions
EP1608861B1 (fr
Inventor
Hong Zhang
Gerd RÖSEL
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.)
Continental Automotive GmbH
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1608861A1 publication Critical patent/EP1608861A1/fr
Application granted granted Critical
Publication of EP1608861B1 publication Critical patent/EP1608861B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02D41/008—Controlling each cylinder individually
    • 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
    • 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
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F02D41/1458—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with determination means using an estimation
    • 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
    • F02D2041/1413—Controller structures or design
    • F02D2041/1418—Several control loops, either as alternatives or simultaneous
    • F02D2041/1419—Several control loops, either as alternatives or simultaneous the control loops being cascaded, i.e. being placed in series or nested

Definitions

  • a method for controlling an internal combustion engine is also known from EP 0 802 316 B1, with a controller designed as a PID controller, the control variable of which is an estimated value of a cylinder-specific air / fuel ratio determined by an observer and the control variable of which is a correspondingly converted mean lambda control factor is rated with a target air / fuel ratio.
  • the average lambda control factor is determined by averaging all cylinder-specific lambda control factors.
  • Each cylinder-specific lambda control factor is the manipulated variable of the respective PID controller assigned to the cylinder.
  • a corrected injection time is determined by multiplying an injection time period specified for all cylinders of the internal combustion engine by the respective cylinder-individual lambda control factor.
  • a third controller is provided, the reference variable of which is a predetermined air / fuel ratio for all cylinders of the internal combustion engine, the controlled variable of which is the mean air / fuel ratio of all cylinder-specific air / fuel ratios and the manipulated variable Lambda control factor is.
  • the specified air / fuel ratio can be set simply and precisely in all cylinders.
  • a further advantageous development of the invention provides that the proportional control parameter or the further integral control parameter of the second controller is predetermined as a function of the load. The control quality can then simply be increased, since the different mixing of the exhaust gas packets which result from the individual combustions of the air / fuel mixture in the respective cylinders Z1-Z4 can easily be taken into account.
  • the actuators are, for example, the throttle valve 11, the gas inlet and gas outlet valves 30, 31, the injection valve 34, the spark plug 35 and the pulse charging valve 18.
  • a fuel mass MFF to be metered is determined as a function of an air mass flow MAF in the respective cylinders ZI to Z4 and, if appropriate, the rotational speed N and a setpoint LAM_SP of the air / fuel ratio for all cylinders Z1-Z4.
  • the second estimated value EST2 compensates for the controlled system dynamics, that is, the dynamics of the internal combustion engine, in such a way that the actuating actions of the first and second controllers are included in the determination of the estimated value D_LAM_I_EST of the cylinder-specific air / fuel ratio deviation.
  • the controller structure and a suitable parameterization of the first and second controllers can ensure that the remaining control deviation between the fuel masses actually metered into the individual cylinders ZI to Z4 approaches zero. Because the second controller, the controlled variable of which is the first estimated value EST1, has no further I component, an increase in the possible control speed and an increase in the robustness of the control structure is achieved compared to the case in which the second controller also has an I- Share.
  • the weighting factors of the blocks B4 and / or B ⁇ are also preferably dependent on the load size, which is preferably the air mass flow MAF in the respective cylinder Z1-Z4 and / or the rotational speed N.

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)

Abstract

L'invention concerne un dispositif de commande d'un moteur à combustion interne comprenant un premier régulateur dont la différence de régulation correspond à la différence entre une valeur réelle (D_LAM_I) et une estimation (D_LAM_I_EST) d'un écart individuel au cylindre du rapport air-carburant relativement à un rapport air-carburant déterminé. Le premier régulateur comporte un paramètre de régulation intégral dont la grandeur de réglage est une première estimation (EST1). Un deuxième régulateur, dont la différence de régulation est la première estimation (EST1), est pourvu d'un paramètre de régulation proportionnel dont la grandeur de réglage est un facteur de régulation lambda (LAM_FAC_I) individuel au cylindre. Un filtre PT1 sert à déterminer une deuxième estimation (EST2) par filtrage PT1 du facteur de régulation lambda (LAM_FAC_I) individuel au cylindre. Une unité effectue l'estimation (D_LAM_I_EST) de l'écart individuel au cylindre du rapport air-carburant relativement au rapport air-carburant déterminé à partir de la différence entre la première et la deuxième estimation (EST1, EST2). En fonction du facteur de régulation lambda (LAM_FAC_I) individuel au cylindre, une masse de carburant (MFF) à mesurer est corrigée, et cette masse de carburant corrigée (MFF_COR) sert à déterminer un signal de réglage pour la soupape d'injection.
EP04820452A 2003-12-16 2004-11-10 Dispositif de commande d'un moteur a combustion interne Expired - Lifetime EP1608861B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10358988 2003-12-16
DE10358988A DE10358988B3 (de) 2003-12-16 2003-12-16 Vorrichtung zum Steuern einer Brennkraftmaschine
PCT/EP2004/052912 WO2005059342A1 (fr) 2003-12-16 2004-11-10 Dispositif de commande d'un moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1608861A1 true EP1608861A1 (fr) 2005-12-28
EP1608861B1 EP1608861B1 (fr) 2008-04-23

Family

ID=34399713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04820452A Expired - Lifetime EP1608861B1 (fr) 2003-12-16 2004-11-10 Dispositif de commande d'un moteur a combustion interne

Country Status (4)

Country Link
US (1) US7284545B2 (fr)
EP (1) EP1608861B1 (fr)
DE (2) DE10358988B3 (fr)
WO (1) WO2005059342A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004004291B3 (de) * 2004-01-28 2005-01-27 Siemens Ag Verfahren zum Anpassen des Erfassens eines Messsignals einer Abgassonde
DE102005057975A1 (de) * 2005-12-05 2007-06-06 Robert Bosch Gmbh Verfahren zur zylinderindividuellen Steuerung der Kraftstoff- und/oder Luftmenge einer Brennkraftmaschine
JP4487971B2 (ja) * 2006-04-24 2010-06-23 トヨタ自動車株式会社 内燃機関の空燃比制御装置
DE102006033869B3 (de) * 2006-07-21 2008-01-31 Siemens Ag Verfahren und Vorrichtung zur Diagnose der zylinderselektiven Ungleichverteilung eines Kraftstoff-Luftgemisches, das den Zylindern eines Verbrennungsmotors zugeführt wird
DE102008009034B3 (de) * 2008-02-14 2009-04-23 Audi Ag Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine
EP2098709B1 (fr) * 2008-03-04 2016-07-06 GM Global Technology Operations LLC Procédé pour faire fonctionner un moteur à combustion interne
DE102008058008B3 (de) 2008-11-19 2010-02-18 Continental Automotive Gmbh Vorrichtung zum Betreiben einer Brennkraftmaschine
GB2487589B (en) * 2011-01-28 2017-10-11 Gm Global Tech Operations Llc Method for operating a diesel/natural-gas internal combustion engine
JP5616274B2 (ja) * 2011-03-31 2014-10-29 本田技研工業株式会社 空燃比制御装置
AT513359B1 (de) * 2012-08-17 2014-07-15 Ge Jenbacher Gmbh & Co Og Verfahren zum Betreiben einer Brennkraftmaschine
DE102013220117B3 (de) * 2013-10-04 2014-07-17 Continental Automotive Gmbh Vorrichtung zum Betreiben einer Brennkraftmaschine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3800176A1 (de) * 1988-01-07 1989-07-20 Bosch Gmbh Robert Steuereinrichtung fuer eine brennkraftmaschine und verfahren zum einstellen von parametern der einrichtung
DE69516314T2 (de) * 1994-02-04 2000-08-10 Honda Giken Kogyo K.K., Tokio/Tokyo System zur Abschätzung des Luft/Krafstoffverhältnisses für eine Brennkraftmaschine
FR2775315B1 (fr) * 1998-02-25 2000-05-05 Magneti Marelli France Procede et dispositif d'autoadaptation rapide de richesse pour moteur a injection avec sonde d'oxygene dans les gaz d'echappement
DE19903721C1 (de) 1999-01-30 2000-07-13 Daimler Chrysler Ag Betriebsverfahren für eine Brennkraftmaschine mit Lambdawertregelung und Brennkraftmaschine
IT1311435B1 (it) 1999-12-17 2002-03-12 Magneti Marelli Spa Metodo per la stima del rapporto stechiometrico del carburante per unsistema di controllo di un motore a combustione interna.
IT1321203B1 (it) 2000-02-01 2003-12-31 Magneti Marelli Spa Metodo per il controllo del titolo della miscela aria - carburante inun motore a scoppio .
US6708681B2 (en) * 2000-07-07 2004-03-23 Unisia Jecs Corporation Method and device for feedback controlling air-fuel ratio of internal combustion engine
DE10221376B4 (de) * 2002-05-14 2013-05-23 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005059342A1 *

Also Published As

Publication number Publication date
US7284545B2 (en) 2007-10-23
DE10358988B3 (de) 2005-05-04
WO2005059342A1 (fr) 2005-06-30
EP1608861B1 (fr) 2008-04-23
US20060260592A1 (en) 2006-11-23
DE502004006915D1 (de) 2008-06-05

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