EP0819210B1 - Verfahren zum ermitteln einer einspritzmehrmenge beim wiedereinsetzen einer brennkraftmaschine - Google Patents

Verfahren zum ermitteln einer einspritzmehrmenge beim wiedereinsetzen einer brennkraftmaschine Download PDF

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Publication number
EP0819210B1
EP0819210B1 EP96946096A EP96946096A EP0819210B1 EP 0819210 B1 EP0819210 B1 EP 0819210B1 EP 96946096 A EP96946096 A EP 96946096A EP 96946096 A EP96946096 A EP 96946096A EP 0819210 B1 EP0819210 B1 EP 0819210B1
Authority
EP
European Patent Office
Prior art keywords
injection quantity
cut
time
fwe
correction factor
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
EP96946096A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0819210A1 (de
Inventor
Helmut Denz
Manfred Pfitz
Klaus BÖTTCHER
Alfred Kloos
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 EP0819210A1 publication Critical patent/EP0819210A1/de
Application granted granted Critical
Publication of EP0819210B1 publication Critical patent/EP0819210B1/de
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
    • F02D41/12—Introducing corrections for particular operating conditions for deceleration
    • 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
    • F02D41/12—Introducing corrections for particular operating conditions for deceleration
    • F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
    • F02D41/126—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off transitional corrections at the end of the cut-off period
    • 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
    • F02D41/0087—Selective cylinder activation, i.e. partial cylinder operation
    • 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
    • F02D41/047—Taking into account fuel evaporation or wall wetting

Definitions

  • a method which according to Reinstalling cylinder-specific injection blanking - e.g. with traction control (ASR), switch off in Push operation, speed or speed limit - cylinder-selectively determines an additional injection quantity.
  • ASR traction control
  • the initial value depends on reinstalling the Fuel supply by the number of hidden Injections of the respective cylinder.
  • the injection quantity will be reset to zero limited depending on the number of injections of the respective cylinder after the end its hiding.
  • the one at the time of reinstallation required additional injection quantity is based on one fixed injection value with a certain Time constant is adjusted.
  • the invention has for its object a method for Determine an injection quantity when reinstalling at least one hidden cylinder Internal combustion engine to indicate an improvement in Exhaust gas and consumption values compared to the state of the art guaranteed.
  • the Injection surplus by multiplying one at the time the reinstallation read from a characteristic curve load-dependent amount of wall film with a correction factor determined.
  • This correction factor is used during the Thrust switch-off time until reinstallation with a first one Time constants adjusted. After reinstalling it the previously calculated additional injection quantity with a second one Time constants reduced again.
  • the figure shows a block diagram for a Method for determining an additional injection quantity at Reinstall an internal combustion engine.
  • the Block 1 contains a characteristic curve for the load-dependent Wall film amount in the air intake pipe. This characteristic curve becomes the current value depending on the load signal tl the amount of wall film read out.
  • node 2 becomes the wall film quantity WF (k) (ki is a time index) adds a value WFOFF that matches the indicates minimal wall film at idle.
  • WOFF is a characteristic curve 3 or dependent on the speed n one depending on the speed and the engine temperature Map taken, this minimum amount of wall film WOFF can but also be taken into account in map 1.
  • This sampled wall film quantity value WFM1S becomes fed another link point 5, in which he with a correction factor fwe is multiplied.
  • This Correction factor fwe is formed in a block 6. Lies a thrust cut-off signal B_SA before, so a Switch 7 a time constant ZFSA to the Correction factor fwe forming block 6 switched through. The Correction factor fwe is then with the time constant ZFSA from a minimum value of 0 to a maximum value of 1.
  • the two time constants ZFSA and ZFWE are in Dependence on the load or speed or other suitable motor sizes.
  • the injection quantity tewe is at the time of Reinstallation calculated individually for each cylinder. This is particularly necessary for staged reinsertion, because then individual cylinders only later with a different load be switched on. This also results for each cylinder that changed according to this different load Wall film quantities.
  • the signal tewe for the individual cylinder Injection surplus becomes one in a connection point the load signal tl derived signal te for the cylinder-specific basic injection quantity superimposed.
  • the signal te for the basic injection quantity in Junction point 9 overlays a correction signal TVUB which is dependent on the battery voltage Retention delay of the cylinder-specific fuel injector considered.
  • This global transition compensation signal teukg consists of three parts, namely one K component, an L component and a W component.
  • the in Junction 11 superimposed K and L shares are from the temporal change of the load-dependent Wall film quantity WF (k) derived.
  • WF (k) load-dependent Wall film quantity
  • the division of the two Shares depend on the speed and the direction of the Load change.
  • the change in the amount of wall film is made using a delay element 14 determines which one around a unit time delayed value WF (k-1) of the wall film amount provides at a node 15.
  • the Node 15 forms the difference between the kth and the (k-1) th value of the amount of wall film, from which the Changes in the amount of wall film result.
  • the W part of the Transition compensation signal teukg is in a third Memory 16 formed, which changes one of the Throttle valve position and the speed dependent Auxiliary load signal tlw (e.g. in a 10 ms grid) accumulates.
  • This W component is in a node 17 to the K and added to the L component.
  • the transition compensation signal teukg can also be different be determined by the method described above.

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 Vehicle Engines Or Engines For Specific Uses (AREA)
EP96946096A 1996-02-06 1996-12-18 Verfahren zum ermitteln einer einspritzmehrmenge beim wiedereinsetzen einer brennkraftmaschine Expired - Lifetime EP0819210B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19604136 1996-02-06
DE19604136A DE19604136A1 (de) 1996-02-06 1996-02-06 Verfahren zum Ermitteln einer Einspritzmehrmenge beim Wiedereinsetzen einer Brennkraftmaschine
PCT/DE1996/002448 WO1997029276A1 (de) 1996-02-06 1996-12-18 Verfahren zum ermitteln einer einspritzmehrmenge beim wiedereinsetzen einer brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP0819210A1 EP0819210A1 (de) 1998-01-21
EP0819210B1 true EP0819210B1 (de) 2000-03-22

Family

ID=7784567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96946096A Expired - Lifetime EP0819210B1 (de) 1996-02-06 1996-12-18 Verfahren zum ermitteln einer einspritzmehrmenge beim wiedereinsetzen einer brennkraftmaschine

Country Status (6)

Country Link
US (1) US5839409A (ja)
EP (1) EP0819210B1 (ja)
JP (1) JPH11504099A (ja)
KR (1) KR100413939B1 (ja)
DE (2) DE19604136A1 (ja)
WO (1) WO1997029276A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10147622A1 (de) * 2001-09-27 2003-04-10 Volkswagen Ag Verfahren zum Betreiben einer Brennkraftmaschine nach einem Schubbetrieb

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6474297B1 (en) * 2001-05-31 2002-11-05 Lai Ming De Fuel breaking/saving device for cars during coasting
US6736108B2 (en) * 2002-05-16 2004-05-18 General Motors Corporation Fuel and spark compensation for reactivating cylinders in a variable displacement engine
US7328686B2 (en) * 2003-09-23 2008-02-12 Ford Global Technologies Llc System and method to control cylinder activation and deactivation
US7111593B2 (en) * 2004-01-29 2006-09-26 Ford Global Technologies, Llc Engine control to compensate for fueling dynamics
JP4334367B2 (ja) * 2004-02-09 2009-09-30 本田技研工業株式会社 燃料噴射制御装置
US7085647B1 (en) 2005-03-21 2006-08-01 Daimlerchrysler Corporation Airflow-based output torque estimation for multi-displacement engine
US7013866B1 (en) 2005-03-23 2006-03-21 Daimlerchrysler Corporation Airflow control for multiple-displacement engine during engine displacement transitions
US7021273B1 (en) 2005-03-23 2006-04-04 Daimlerchrysler Corporation Transition control for multiple displacement engine
US7044107B1 (en) 2005-03-23 2006-05-16 Daimlerchrysler Corporation Method for enabling multiple-displacement engine transition to different displacement
DE102005031720B4 (de) 2005-07-07 2020-06-18 Daimler Ag Verfahren zur Dosierung eines Reduktionsmittels
EP1944490A1 (en) * 2007-01-10 2008-07-16 GM Global Technology Operations, Inc. Fuel control method
JP4497191B2 (ja) 2007-11-06 2010-07-07 トヨタ自動車株式会社 内燃機関の制御装置
US9470169B2 (en) * 2011-01-20 2016-10-18 Toyota Jidosha Kabushiki Kaisha Control device for internal combustion engine
US10746108B2 (en) * 2014-10-20 2020-08-18 Ford Global Technologies, Llc Methods and system for reactivating engine cylinders
JP6120019B2 (ja) 2015-02-19 2017-04-26 トヨタ自動車株式会社 内燃機関の制御装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2210223A5 (ja) * 1972-12-11 1974-07-05 Sopromi Soc Proc Modern Inject
JPS57124033A (en) * 1981-01-26 1982-08-02 Nissan Motor Co Ltd Fuel controller for internal combustion engine
JPH0833125B2 (ja) * 1987-01-30 1996-03-29 日産自動車株式会社 内燃機関の燃料供給制御装置
JPS63314339A (ja) * 1987-06-17 1988-12-22 Hitachi Ltd 空燃比制御装置
JPH01142545U (ja) * 1988-03-25 1989-09-29
DE4328835C2 (de) * 1993-08-27 2002-09-05 Bosch Gmbh Robert Zylinderselektives Einspritzsystem
EP0766783B1 (de) * 1994-06-24 1998-08-26 Siemens Aktiengesellschaft Verfahren zum steuern der kraftstoffzufuhr für eine mit selektiver zylinderabschaltung betreibbare brennkraftmaschine
JPH08177556A (ja) * 1994-10-24 1996-07-09 Nippondenso Co Ltd 内燃機関の燃料供給量制御装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10147622A1 (de) * 2001-09-27 2003-04-10 Volkswagen Ag Verfahren zum Betreiben einer Brennkraftmaschine nach einem Schubbetrieb

Also Published As

Publication number Publication date
DE59604780D1 (de) 2000-04-27
KR100413939B1 (ko) 2004-03-30
EP0819210A1 (de) 1998-01-21
WO1997029276A1 (de) 1997-08-14
KR19980703277A (ko) 1998-10-15
JPH11504099A (ja) 1999-04-06
DE19604136A1 (de) 1997-08-07
US5839409A (en) 1998-11-24

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