EP1291511B1 - Gerät zur Steuerung der Kraftstoffeinspritzung - Google Patents

Gerät zur Steuerung der Kraftstoffeinspritzung Download PDF

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Publication number
EP1291511B1
EP1291511B1 EP20020018366 EP02018366A EP1291511B1 EP 1291511 B1 EP1291511 B1 EP 1291511B1 EP 20020018366 EP20020018366 EP 20020018366 EP 02018366 A EP02018366 A EP 02018366A EP 1291511 B1 EP1291511 B1 EP 1291511B1
Authority
EP
European Patent Office
Prior art keywords
lean
burn
valve
intake
engine
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 - Fee Related
Application number
EP20020018366
Other languages
English (en)
French (fr)
Other versions
EP1291511A2 (de
EP1291511A3 (de
Inventor
Mamoru c/o Kabushiki Kaisha Honda Gijutsu Kenkyusho Uraki
Nobuhiko c/o Kabushiki Kaisha Honda Gijutsu Kenkyusho Ito
Tomoya c/o Kabushiki Kaisha Honda Gijutsu Kenkyusho Kono
Yoshiaki c/o Kabushiki Kaisha Honda Gijutsu Kenkyusho Hirakata
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of EP1291511A2 publication Critical patent/EP1291511A2/de
Publication of EP1291511A3 publication Critical patent/EP1291511A3/de
Application granted granted Critical
Publication of EP1291511B1 publication Critical patent/EP1291511B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02D41/047—Taking into account fuel evaporation or wall wetting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead camshafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
    • F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005—Deactivating valves
    • 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
    • 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
    • F02D41/0002—Controlling intake air
    • F02D2041/001—Controlling intake air for engines with variable valve actuation
    • F02D2041/0012—Controlling intake air for engines with variable valve actuation with selective deactivation of cylinders
    • 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
    • F02D41/0002—Controlling intake air
    • F02D2041/0015—Controlling intake air for engines with means for controlling swirl or tumble flow, e.g. by using swirl valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/04—Engine intake system parameters
    • F02D2200/0404—Throttle position
    • 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
    • F02D41/1456—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 sensor output signal being linear or quasi-linear with the concentration of oxygen

Definitions

  • the present invention relates to a fuel injection control apparatus and, more particularly, to a fuel injection control apparatus of an engine having a plurality of pairs of intake and exhaust valves per cylinder.
  • an engine having a valve stopping mechanism for making at least one intake valve inactive in a schedule operation zone (for example, a low engine speed zone) to hold a valve closed state is known.
  • a schedule operation zone for example, a low engine speed zone
  • a swirl is generated in a combustion chamber to realize lean burn, thereby achieving reduction in fuel consumption.
  • the intake valve in the inactive (stop) state is switched to an active state. At this time, however, a fuel supply state suddenly changes. Consequently, the engine operating conditions also suddenly change, and the driver may feel something is wrong.
  • the degree of correcting the A/F ratio to the lean side by the lean-burn means is determined to be high when the engine temperature is low and to be low when the engine temperature is high.
  • a coil spring 66 for energizing the lifter 61 upward is provided between the lifter 61 and the cylinder head 40.
  • the upper end of the spring 54 for energizing the valve element 51 upward is in contact with a stopper 512 fixed to the stem 511.
  • the upper end of the lifter 61 is in contact with an intake valve cam 67 and swings (in the vertical direction) along the periphery of the cam 67 when the cam 67 turns.
  • a fuel supply control performed at the time of switching the valve mechanism from the inactive state to the active state will be described.
  • the fuel injection amount is set to be smaller than the engine request fuel amount, and the fuel-air mixture is controlled to be on the lean side.
  • the solenoid when the solenoid is ON, that is, when all the valve mechanisms regarding the first and second intake ports 44 and 45 and the first and second exhaust ports 46 and 47 are switched to a state where they are always active (at the time of four valves), the lean-burn coefficient KVTLN is restored to 1.0. Consequently, the fuel supply amount is controlled so that the air-fuel mixture is set as the engine requires, and the operation of setting the air-fuel mixture to the lean side is canceled.

Claims (3)

  1. Kraftstoffeinspritz-Steuerungs/-Regelungsvorrichtung zur Bestimmung einer Kraftstoffanforderungsmenge auf der Basis eines
    Motorzustands, umfassend:
    ein Ventilstoppmittel (53), um, in einem aktiven Zustand davon, zumindest eines einer Mehrzahl von Einlassventilen (52), die für jeden Zylinder vorgesehen sind, in einer planmäßigen Betriebszone in einem geschlossenen Zustand zu halten;
    ein Kraftstoffeinspritzsystem, welches ein Kraftstoffeinspritzventil (16) enthält, das für einen gemeinsamen Einlassweg vorgesehen ist, der zu einer Mehrzahl von Ansaugöffnungen (441, 451) verzweigt ist, die durch die Mehrzahl von Einlassventilen (52) geöffnet/geschlossen werden, und
    ein Magerverbrennungsmittel (11-15) zum Korrigieren eines Luft-Kraftstoff-Verhältnisses (A/F) zu einer mageren Seite in Bezug auf die Kraftstoffanforderungsmenge in einer Magerverbrennungsbetriebszone, die außerhalb der planmäßigen Betriebszone liegt und in der das Ventilstoppmittel (53) zu einem inaktiven Zustand geschaltet wird, worin das zumindest eine Einlassventil (52) gemäß der Motordrehzahl (NE) geöffnet/geschlossen wird,
    dadurch gekennzeichnet, dass das Magerverbrennungsmittel (11-15) das Luft-Kraftstoff-Verhältnis (A/F) zur mageren Seite hin in Stufen korrigiert, wenn die Motordrehzahl (NE) eine Untergrenzdrehzahl (NEVTCL) überschreitet, während das Ventilstoppmittel (53) in seinem aktiven Zustand ist, und die Magerverbrennungskorrektur in Stufen aufhebt, wenn die Motordrehzahl (NE) eine Steuerschaltdrehzahl (NEVTC) überschreitet, welche höher ist als die Untergrenzdrehzahl (NEVTCL) und bei der das Solenoid betätigt wird, um das Ventilstoppmittel (53) in dessen inaktiven Zustand zu schalten.
  2. Kraftstoffeinspritz-Steuerungs/-Regelungsvorrichtung nach Anspruch 1, die ferner ein Mittel zum Erfassen einer Motortemperatur umfasst, dadurch gekennzeichnet, dass der Grad der Korrektur des Luft-Kraftstoff-Verhältnisses (A/F) zu mageren Seite durch das Magerverbrennungsmittel (11-15) als hoch bestimmt wird, wenn die Motortemperatur niedrig ist, und als niedrig, wenn die Motortemperatur hoch ist.
  3. Kraftstoffeinspritz-Steuerungs/-Regelungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass dann, wenn die Magerverbrennungskorrektur für eine geplante Zeit oder länger fortgesetzt wird, die Magerverbrennungskorrektur in Stufen aufgehoben wird.
EP20020018366 2001-09-07 2002-08-14 Gerät zur Steuerung der Kraftstoffeinspritzung Expired - Fee Related EP1291511B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001272035A JP4070071B2 (ja) 2001-09-07 2001-09-07 燃料噴射制御装置
JP2001272035 2001-09-07

Publications (3)

Publication Number Publication Date
EP1291511A2 EP1291511A2 (de) 2003-03-12
EP1291511A3 EP1291511A3 (de) 2006-04-05
EP1291511B1 true EP1291511B1 (de) 2008-06-04

Family

ID=19097461

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020018366 Expired - Fee Related EP1291511B1 (de) 2001-09-07 2002-08-14 Gerät zur Steuerung der Kraftstoffeinspritzung

Country Status (3)

Country Link
EP (1) EP1291511B1 (de)
JP (1) JP4070071B2 (de)
DE (1) DE60226934D1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5308888B2 (ja) * 2009-03-27 2013-10-09 本田技研工業株式会社 可変動弁装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6258019A (ja) * 1985-09-05 1987-03-13 Toyota Motor Corp 内燃機関の吸気ポ−ト装置
JPS6315553A (ja) 1986-07-08 1988-01-22 Toshiba Corp 信号送出回路
CA2077068C (en) * 1991-10-03 1997-03-25 Ken Ogawa Control system for internal combustion engines
JP3631770B2 (ja) * 1993-01-22 2005-03-23 本田技研工業株式会社 内燃機関の吸気装置
JP2762216B2 (ja) * 1993-09-28 1998-06-04 本田技研工業株式会社 内燃機関
JPH07293305A (ja) 1994-04-26 1995-11-07 Honda Motor Co Ltd 内燃機関の制御装置
JP4346049B2 (ja) 1999-01-11 2009-10-14 本田技研工業株式会社 弁休止機能付エンジン
JP3807174B2 (ja) * 1999-12-06 2006-08-09 日産自動車株式会社 エンジンの制御装置

Also Published As

Publication number Publication date
DE60226934D1 (de) 2008-07-17
EP1291511A2 (de) 2003-03-12
JP4070071B2 (ja) 2008-04-02
JP2003083117A (ja) 2003-03-19
EP1291511A3 (de) 2006-04-05

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