EP1129279B1 - Procede pour la determination de grandeurs reglantes pour la commande de moteurs a injection directe d'essence - Google Patents

Procede pour la determination de grandeurs reglantes pour la commande de moteurs a injection directe d'essence Download PDF

Info

Publication number
EP1129279B1
EP1129279B1 EP99960845A EP99960845A EP1129279B1 EP 1129279 B1 EP1129279 B1 EP 1129279B1 EP 99960845 A EP99960845 A EP 99960845A EP 99960845 A EP99960845 A EP 99960845A EP 1129279 B1 EP1129279 B1 EP 1129279B1
Authority
EP
European Patent Office
Prior art keywords
torque
determined
lambda
lambda value
air
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
EP99960845A
Other languages
German (de)
English (en)
Other versions
EP1129279A1 (fr
Inventor
Hartmut Bauer
Dieter Volz
Juergen Gerhardt
Juergen Pantring
Michael Oder
Werner Hess
Christian Koehler
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 EP1129279A1 publication Critical patent/EP1129279A1/fr
Application granted granted Critical
Publication of EP1129279B1 publication Critical patent/EP1129279B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
    • F02D41/1475—Regulating the air fuel ratio at a value other than stoichiometry
    • 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
    • F02D2041/389—Controlling fuel injection of the high pressure type for injecting directly into the cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/18—Control of the engine output torque

Definitions

  • the invention relates to the setting of a desired Motor torque through appropriate calculation of the manipulated variables, especially for adjusting the air and fuel supply to the engine for an engine with direct petrol injection.
  • WO 95/24550 describes a method for controlling the Drive power of a vehicle become known to one Specification of a setpoint for that of the spark-ignited Internal combustion engine torque is based.
  • An inclusion of efficiency changes through the different interventions are not addressed.
  • a The air / fuel ratio is changing at underlying intake manifold-injection internal combustion engine only possible within narrow limits, within which one reliable ignition of the mixture and compliance specified exhaust gas values is possible.
  • An important operating mode of an internal combustion engine with Direct petrol injection is the approximation unthrottled operation with high excess air, which at an intake manifold-injection engine is possible.
  • the air mass in the combustion chamber is in operation high excess air then largely constant and Air ratio lambda as a measure of the composition of the Fuel / air mixture is injected by the Determined fuel mass.
  • the air mass in the combustion chamber determined in connection with the air ratio lambda and the Speed n that applied by the internal combustion engine Torque. With a high excess of air, this can be done desired torque largely via a variation of the Set the fuel quantity.
  • the combustibility of the mixture with a high excess of air is thereby spatially inhomogeneous mixture distribution in the combustion chamber reached.
  • This Operating mode is also called shift operation. From that a distinction is made between the operation with homogeneous Mixture distribution with little or no excess air.
  • the invention relates to determining the manipulated variable from the required moment in shift operation.
  • the object of the invention is to avoid the undesirable Torque changes.
  • the determination of the manipulated variable is advantageous Injection time by determining the manipulated variable Air supply supplemented.
  • Fig. 1 shows the technical environment of the invention.
  • Fig. 2 discloses an embodiment of the invention in the form of functional blocks and
  • Fig. 3 represents the formation of the Restriction of air supply.
  • the 1 in FIG. 1 represents the combustion chamber of a Cylinder of an internal combustion engine. Via an inlet valve 2 the inflow of air to the combustion chamber is controlled. The air is sucked in through a suction pipe 3. The intake air volume can can be varied via a throttle valve 4 by a Control unit 5 is controlled.
  • the control unit Signals about the driver's torque request, e.g. via the position of an accelerator pedal 6, a signal on the Engine speed n from a speed sensor 7 and a signal about the amount ml of air drawn in by one Air flow meter 8 supplied.
  • Input signals via further parameters of the Internal combustion engine such as intake air and coolant temperature USW forms the control unit 5 output signals for adjustment that of the throttle valve angle alpha by an actuator 9 and to control a fuel injection valve 10, dosed by the fuel into the combustion chamber of the engine becomes.
  • the throttle valve angle alpha and Injection pulse width ti are within the scope of the invention essential, coordinated manipulated variables for Realization of the desired moment considered.
  • the control unit controls an exhaust gas recirculation 11 Tank ventilation 12 and other functions such as the ignition of the fuel / air mixture in the combustion chamber.
  • the one from the Combustion gas force is generated by pistons 13 and Crank drive 14 converted into a torque.
  • FIG. 2 shows an embodiment of the invention.
  • block 2.1 represents a map, which is determined by the speed n and the relative air filling rl is addressed.
  • the relative Air filling is with a maximum filling of the combustion chamber Air related and so to speak gives the fraction of the maximum combustion chamber or cylinder filling. It will be in essentially formed from the signal ml.
  • the from measurands Define the relative filling rl and the speed n an operating point of the engine. With the map 2.1 different operating points assigned torques that the engine under standard conditions in the different Operating points generated.
  • Standard conditions can be determined by certain values of Influencing variables such as ignition angle, air ratio lambda, EGR rate, Define the tank ventilation status etc.
  • lambda is equal to 1.
  • the standard condition regarding the ignition angle can be Define the ignition angle at which the maximum possible Moment.
  • an efficiency eta define as the ratio of the moment under standard conditions at the moment when isolated change of the Sets the influencing variable.
  • desired torque / standard torque product of Efficiencies.
  • the division of the driver request, for example dependent desired or target torque by the for the individual operating point of certain standard torque in the block 2.2 therefore delivers the product of all efficiencies.
  • the values of the influencing variables such as EGR rate, ignition angle USW are in the control unit.
  • EGR rate e.g., EGR rate
  • ignition angle USW e.g., ignition angle USW
  • stored Characteristic curves determine the associated efficiencies. It follows the formation of the product's efficiencies known influencing factors. These are all influencing factors except Lambda.
  • the lambda efficiency etalam The associated lambda is determined via a characteristic curve access.
  • the characteristic curve eta from Lambda gives for different Lambda values the ratio of the standard torque for lambda equal to one at the moment for other lambda values.
  • Block 2.4 thus provides exactly the lambda value that is in the Combustion chamber must be set to the current, through which Air filling rl and speed n defined operating point the known other influencing variables such as ignition timing, EGR rate etc. to induce the desired moment. there means inducing the generation of gas force here Piston and crank mechanism deliver the desired torque.
  • This target lambda value determines in conjunction with the Air filling rl of the combustion chamber derived from measured variables Amount of fuel needed to generate the desired moment must be injected.
  • This embodiment allows adjustment of the Desired torque in largely dethrottled Shift operation of the engine.
  • Fig. 3 enables the appropriate Adjustment of fuel and air supply to the engine for Realization of a given engine torque under Taking into account a maximum permissible value for the Air ratio lambda.
  • the air filling can, for example, in systems with electronic controlled throttle valve (EGAS) via the Throttle valve opening angle set as manipulated variable become.
  • EGAS electronic controlled throttle valve
  • This manipulated variable is calculated in so-called air path.
  • the fuel mass is determined, for example, by varying a Injection pulse width set as manipulated variable.
  • the This manipulated variable is calculated as above was shown in the so-called fuel path.
  • Air path the cylinder charge is limited to a value which results from the maximum permissible lambda for the the desired moment.
  • Fig. 3 In block 3.1, the maximum permissible value Lambda Lambda _ perm is determined first, the example of the speed n may be dependent and therefore for example can be determined from a characteristic curve...
  • the maximum permissible lambda becomes the associated lambda efficiency etalam determined.
  • This product complies as shown above the ratio of the desired or actual moment to that Moment under standard conditions. With this from a maximum permissible lambda value corresponds to the outgoing consideration this actual moment is the moment that is at the maximum permissible lambda. This is the maximum allowed The actual torque to be assigned to the lambda value is indicated in block 3.4 Linking the product's efficiencies with that of Block 3.5 provided standard torque generated.
  • This air filling rl thus represents the upper filling limit below which the desired moment can be seen only Interventions in the fuel path can be realized.
  • This filling limit can be limited by a Throttle valve opening angle to a maximum value Realize alpha_max in block 3.7.

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)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un procédé pour le réglage du moment de couple pour un moteur à combustion interne, qui comporte les étapes suivantes: détermination d'un moment de consigne, détermination d'un point de fonctionnement à partir de valeurs de mesure pour le remplissage d'air et la vitesse de rotation, détermination d'un moment normalisé pour ce point de fonctionnement, détermination d'un rendement de consigne à partir du moment normalisé et du moment de consigne, détermination du lambda associé à ce rendement, détermination de la quantité de carburant à partir du lambda associé et du remplissage d'air dérivé de grandeurs de mesure, qui donne, en liaison avec le remplissage d'air, le lambda associé pour la réalisation du moment de consigne.

Claims (2)

  1. Procédé de réglage du couple d'un moteur à combustion interne comprenant les étapes suivantes :
    on détermine un couple de consigne,
    on détermine un point de fonctionnement à partir de valeurs de mesure de la charge d'air et du régime,
    on détermine un couple normalisé pour ce point de fonctionnement,
    on détermine un rendement de consigne à partir du couple normalisé et du couple de consigne,
    on détermine le coefficient lambda correspondant à ce rendement,
    on détermine la quantité de carburant à partir du coefficient lambda correspondant et de la charge d'air déduite des grandeurs de mesure qui en liaison avec la charge d'air donnent le coefficient lambda correspondant pour réaliser le couple de consigne.
  2. Procédé selon la revendication 1,
    caractérisé par les étapes suivantes :
    on détermine le coefficient lambda maximum autorisé pour une combustion régulière,
    on détermine le rendement lambda correspondant,
    on détermine le rendement global comme produit de tous les rendements des autres grandeurs d'influence connues pour le coefficient lambda maximum autorisé,
    on détermine le couple réel, qui pour le coefficient lambda maximum autorisé et les rendements s'établit en tenant compte du couple normalisé,
    on détermine une charge de cylindre maximale rl pour ce couple réel, charge pour laquelle s'établit ce couple réel dans l'hypothèse d'un coefficient lambda maximum,
    on détermine un angle de volet d'étranglement maximum α_max pour limiter la charge.
EP99960845A 1998-11-03 1999-11-02 Procede pour la determination de grandeurs reglantes pour la commande de moteurs a injection directe d'essence Expired - Lifetime EP1129279B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19851990A DE19851990A1 (de) 1998-11-03 1998-11-03 Verfahren zur Bestimmung von Stellgrößen bei der Steuerung von Benzindirekteinspritzmotoren
DE19851990 1998-11-03
PCT/DE1999/003479 WO2000026522A1 (fr) 1998-11-03 1999-11-02 Procede pour la determination de grandeurs reglantes pour la commande de moteurs a injection directe d'essence

Publications (2)

Publication Number Publication Date
EP1129279A1 EP1129279A1 (fr) 2001-09-05
EP1129279B1 true EP1129279B1 (fr) 2003-03-05

Family

ID=7887423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99960845A Expired - Lifetime EP1129279B1 (fr) 1998-11-03 1999-11-02 Procede pour la determination de grandeurs reglantes pour la commande de moteurs a injection directe d'essence

Country Status (5)

Country Link
US (1) US6512983B1 (fr)
EP (1) EP1129279B1 (fr)
JP (1) JP2003502540A (fr)
DE (2) DE19851990A1 (fr)
WO (1) WO2000026522A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1469179A1 (fr) * 2003-04-16 2004-10-20 Robert Bosch Gmbh Procédé et dispositif pour réguler un moteur à combustion interne

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10000918A1 (de) * 2000-01-12 2001-07-19 Volkswagen Ag Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
DE10040251A1 (de) * 2000-08-14 2002-03-07 Bosch Gmbh Robert Verfahren, Computerprogramm und Steuer- und/oder Regeleinrichtung zum Betreiben einer Brennkraftmaschine
DE10043375A1 (de) * 2000-09-02 2002-03-14 Bosch Gmbh Robert Verfahren zur Aufheizung eines Katalysators bei Verbrennungsmotoren mit Benzindirekteinspritzung
DE10043859A1 (de) 2000-09-04 2002-03-14 Bosch Gmbh Robert Verfahren zur Diagnose der Gemischbildung
DE10043699A1 (de) 2000-09-04 2002-03-14 Bosch Gmbh Robert Verfahren zur Bestimmung des Kraftstoffgehaltes des Regeneriergases bei einem Verbrennungsmotor mit Benzindirekteinspritzung im Schichtbetrieb
DE10043687A1 (de) 2000-09-04 2002-03-14 Bosch Gmbh Robert Koordination verschiedener Anforderungen an die Abgastemperatur und entsprechende Heiz-oder Kühl-Maßnahmen
DE10043690A1 (de) * 2000-09-04 2002-03-14 Bosch Gmbh Robert Verfahren zur NOx-Massenstrombestimmung aus Kennfelddaten bei variabler Lufteinlass- und Motortemperatur
DE10100682A1 (de) * 2001-01-09 2002-07-11 Bosch Gmbh Robert Verfahren zur Aufheizung eines Katalysators bei Verbrennungsmotoren mit Benzindirekteinspritzung
DE10255488A1 (de) 2002-11-27 2004-06-09 Robert Bosch Gmbh Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine
DE102004054240B4 (de) * 2004-11-10 2016-07-14 Robert Bosch Gmbh Verfahren zum Betreiben einer Brennkraftmaschine
DE102006015264A1 (de) * 2006-04-01 2007-10-04 Bayerische Motoren Werke Ag Verfahren zum Steuern einer Brennkraftmaschine
JP4396748B2 (ja) * 2007-08-21 2010-01-13 トヨタ自動車株式会社 内燃機関の制御装置
EP2570636B1 (fr) * 2010-05-13 2016-10-26 Toyota Jidosha Kabushiki Kaisha Dispositif de commande pour moteur à combustion interne
US10803213B2 (en) 2018-11-09 2020-10-13 Iocurrents, Inc. Prediction, planning, and optimization of trip time, trip cost, and/or pollutant emission for a vehicle using machine learning

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4407475C2 (de) 1994-03-07 2002-11-14 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung eines Fahrzeugs
US5479898A (en) * 1994-07-05 1996-01-02 Ford Motor Company Method and apparatus for controlling engine torque
DE19618849B4 (de) 1996-05-10 2010-04-29 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine eines Fahrzeugs
US6273076B1 (en) * 1997-12-16 2001-08-14 Servojet Products International Optimized lambda and compression temperature control for compression ignition engines
DE19850581C1 (de) * 1998-11-03 2000-02-10 Bosch Gmbh Robert Verfahren und Vorrichtung zur Ermittlung des Drehmoments einer Brennkraftmaschine mit Benzindirekteinspritzung
DE19900740A1 (de) * 1999-01-12 2000-07-13 Bosch Gmbh Robert Verfahren und Vorrichtung zum Betreiben einer Brennkraftmaschine
US6308697B1 (en) * 2000-03-17 2001-10-30 Ford Global Technologies, Inc. Method for improved air-fuel ratio control in engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1469179A1 (fr) * 2003-04-16 2004-10-20 Robert Bosch Gmbh Procédé et dispositif pour réguler un moteur à combustion interne

Also Published As

Publication number Publication date
DE19851990A1 (de) 2000-06-21
US6512983B1 (en) 2003-01-28
JP2003502540A (ja) 2003-01-21
WO2000026522A1 (fr) 2000-05-11
EP1129279A1 (fr) 2001-09-05
WO2000026522A9 (fr) 2000-09-28
DE59904486D1 (de) 2003-04-10

Similar Documents

Publication Publication Date Title
EP0433632B1 (fr) Méthode de commande de moteur à combustion interne sans papillon d'admission
DE19737375C2 (de) Steuergerät für einen Motor mit innerer Verbrennung, Direkt-Einspritzung und Funkenzündung
EP1129279B1 (fr) Procede pour la determination de grandeurs reglantes pour la commande de moteurs a injection directe d'essence
EP1132600B1 (fr) Méthode d'adaptation pour la commande d' injection
DE19631986A1 (de) Steuereinrichtung für eine direkteinspritzende Benzinbrennkraftmaschine
DE10157104A1 (de) Verfahren und Vorrichtung zur Steuerung von Betriebsübergängen bei Brennkraftmaschinen
DE69725826T2 (de) Regler für Brennkraftmaschinen mit Schichtladung
DE19741180A1 (de) Motorsteuerungssystem und -Verfahren
DE19829308A1 (de) Regeleinrichtung für einen Ottomotor mit Direkteinspritzung
DE102017114105B4 (de) System und Verfahren zur Steuerung eines Motors basierend auf einer Abweichung der Kolbentemperatur
DE19734227C2 (de) Steuergerät für einen Verbrennungsmotor
DE10137851B4 (de) Kraftstoffeinspritzregelsystem für einen direkt einspritzenden Motor
DE19813380A1 (de) Verfahren zum Betreiben einer Brennkraftmaschine
EP1921295A2 (fr) Procédé destiné au fonctionnement d'un moteur à combustion interne
WO2007036411A1 (fr) Procede et dispositif pour commander un moteur a combustion interne
DE69825675T2 (de) Saugluftsteuerungssystem für Brennkraftmaschine
DE19522692C2 (de) Steuervorrichtung und -verfahren für eine Verbrennungskraftmaschine
DE10141888A1 (de) Verfahren zur Ansteuerung von Kraftstoffeinspritzventilen, Steuergerät für eine Brennkraftmaschine und Brennkraftmaschine
WO2005054648A1 (fr) Procede et dispositif pour commander un moteur a combustion interne
EP1099051B1 (fr) Procede de fonctionnement d'un moteur a combustion interne
DE19700104B4 (de) Steuervorrichtung für Mehrzylinder-Direkteinpritzmotor
DE10156409B4 (de) Brennkraftmaschine und ein Verfahren zur Verbesserung der Laufruhe mehrzylindriger Brennkraftmaschinen
DE4239842A1 (de) Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine
WO2016055465A1 (fr) Procédé de détermination d'une réserve de couple
DE102015214930B4 (de) Verfahren zum Ändern einer Aufteilung auf Saugrohreinspritzung und Direkteinspritzung bei einer Brennkraftmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010605

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20011002

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): DE FR

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 59904486

Country of ref document: DE

Date of ref document: 20030410

Kind code of ref document: P

ET Fr: translation filed
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

Ref document number: 1129279E

Country of ref document: IE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20031208

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20131119

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141201

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20170126

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59904486

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180602