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EP1087121A3 - Fuel injection control method for direct injection diesel engine - Google Patents

Fuel injection control method for direct injection diesel engine Download PDF

Info

Publication number
EP1087121A3
EP1087121A3 EP00119237A EP00119237A EP1087121A3 EP 1087121 A3 EP1087121 A3 EP 1087121A3 EP 00119237 A EP00119237 A EP 00119237A EP 00119237 A EP00119237 A EP 00119237A EP 1087121 A3 EP1087121 A3 EP 1087121A3
Authority
EP
European Patent Office
Prior art keywords
fuel injection
cylinder
diesel engine
solenoid valve
control time
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
EP00119237A
Other languages
German (de)
French (fr)
Other versions
EP1087121B1 (en
EP1087121A2 (en
Inventor
Axel Dipl.-Ing. Braun (Th)
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.)
Adam Opel GmbH
Original Assignee
Adam Opel 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 Adam Opel GmbH filed Critical Adam Opel GmbH
Publication of EP1087121A2 publication Critical patent/EP1087121A2/en
Publication of EP1087121A3 publication Critical patent/EP1087121A3/en
Application granted granted Critical
Publication of EP1087121B1 publication Critical patent/EP1087121B1/en
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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or 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
    • F02D41/008—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
    • F02D41/008—Controlling each cylinder individually
    • F02D41/0085—Balancing of cylinder outputs, e.g. speed, torque or air-fuel ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Steuerung der Kraftstoffeinspritzung bei einer mehrzylindrigen schnell laufenden direkt einspritzenden Dieselbrennkraftmaschine mit zumindest einer von Magnetventilen Zylinder selektiv gesteuerten nockerigetriebenen Einspritzpumpe.The invention relates to a method for controlling the Fuel injection in a multi-cylinder fast running direct injection diesel engine with at least one of solenoid valve cylinders selective controlled cam-driven injection pump.

Aufgabe der Erfindung ist es, den Abfall des Kraftstoffeinspritzdruckes unter einen vorgegebenen noch tolerierbaren Wert bei geringer Drehzahl und Last zu vermeiden.The object of the invention is to reduce the fuel injection pressure below a given still tolerable Avoid value at low speed and load.

Dazu wird von einer Brennkraftmaschine ausgegangen, bei der die Ansteuerzeit des jeweiligen Magnetventils die Kraftstoffzumessung bestimmt, wobei eine Abschaltung wenigstens eines Zylinders derart erfolgt, dass die entsprechende Ansteuerzeit bei einer vorgegebenen Schwelle auf Null gesetzt wird. Damit das abgegebene Drehmoment konstant bleibt, wird die Ansteuerzeit der übrigen Zylinder erhöht.For this purpose, an internal combustion engine is assumed, at the the control time of the respective solenoid valve Determined fuel metering, with a shutdown at least of a cylinder in such a way that the corresponding Control time at a given threshold is set to zero. So that the torque delivered remains constant, the activation time of the remaining cylinders elevated.

Erfindungsgemäß wird die Schwelle für die Zylinderabschaltung bestimmt von einem mit der aktuellen Kraftstoffeinspritzmenge pro Zylinder noch erzielbaren zulässigen minimalen Kraftstoffeinspritzdruck. Damit kann auch im Teillastbereich und bei Leerlauf eine saubere Verbrennung mit gutem thermischen Wirkungsgrad und günstigen Abgaswerten erzielt werden.According to the threshold for cylinder deactivation determined by one with the current fuel injection quantity permissible still achievable per cylinder minimum fuel injection pressure. With that, too clean combustion in the partial load range and when idling with good thermal efficiency and favorable exhaust gas values be achieved.

EP00119237A 1999-09-22 2000-09-06 Fuel injection control method for direct injection diesel engine Expired - Lifetime EP1087121B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19945375A DE19945375A1 (en) 1999-09-22 1999-09-22 Method for controlling the fuel injection in a direct injection diesel engine
DE19945375 1999-09-22

Publications (3)

Publication Number Publication Date
EP1087121A2 EP1087121A2 (en) 2001-03-28
EP1087121A3 true EP1087121A3 (en) 2003-05-02
EP1087121B1 EP1087121B1 (en) 2004-11-10

Family

ID=7922880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00119237A Expired - Lifetime EP1087121B1 (en) 1999-09-22 2000-09-06 Fuel injection control method for direct injection diesel engine

Country Status (2)

Country Link
EP (1) EP1087121B1 (en)
DE (2) DE19945375A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112018000453T5 (en) * 2017-02-16 2019-10-10 Ge Global Sourcing Llc Method and system for cylinder deactivation of an engine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4126204A1 (en) * 1991-08-08 1993-02-11 Bosch Gmbh Robert METHOD FOR CONTROLLING FUEL INJECTION IN A DIESEL INTERNAL COMBUSTION ENGINE
DE4243541A1 (en) * 1992-12-22 1994-06-23 Kloeckner Humboldt Deutz Ag Fuel injection system for diesel engine
EP0764777A2 (en) * 1995-09-23 1997-03-26 Robert Bosch Gmbh Method and apparatus for controlling an internal combustion engine
FR2762358A1 (en) * 1997-04-16 1998-10-23 Peugeot Control of operation of diesel engine fitted to motor vehicle
US5954032A (en) * 1996-12-12 1999-09-21 Daimlerchrysler Ag Control of an injection system for a multicylinder internal combustion engine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394851A (en) * 1992-09-18 1995-03-07 General Electric Company Electronic fuel injection system for large compression ignition engine
DE19619324B4 (en) * 1995-10-07 2006-08-17 Robert Bosch Gmbh Method and device for controlling a drive unit of a vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4126204A1 (en) * 1991-08-08 1993-02-11 Bosch Gmbh Robert METHOD FOR CONTROLLING FUEL INJECTION IN A DIESEL INTERNAL COMBUSTION ENGINE
DE4243541A1 (en) * 1992-12-22 1994-06-23 Kloeckner Humboldt Deutz Ag Fuel injection system for diesel engine
EP0764777A2 (en) * 1995-09-23 1997-03-26 Robert Bosch Gmbh Method and apparatus for controlling an internal combustion engine
US5954032A (en) * 1996-12-12 1999-09-21 Daimlerchrysler Ag Control of an injection system for a multicylinder internal combustion engine
FR2762358A1 (en) * 1997-04-16 1998-10-23 Peugeot Control of operation of diesel engine fitted to motor vehicle

Also Published As

Publication number Publication date
EP1087121B1 (en) 2004-11-10
DE19945375A1 (en) 2001-03-29
DE50008580D1 (en) 2004-12-16
EP1087121A2 (en) 2001-03-28

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