EP0898066A3 - Method of controlling an air-fuel ratio of an engine - Google Patents

Method of controlling an air-fuel ratio of an engine Download PDF

Info

Publication number
EP0898066A3
EP0898066A3 EP98113470A EP98113470A EP0898066A3 EP 0898066 A3 EP0898066 A3 EP 0898066A3 EP 98113470 A EP98113470 A EP 98113470A EP 98113470 A EP98113470 A EP 98113470A EP 0898066 A3 EP0898066 A3 EP 0898066A3
Authority
EP
European Patent Office
Prior art keywords
elapsed time
torque fluctuation
cylinder
amount
set 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
EP98113470A
Other languages
German (de)
French (fr)
Other versions
EP0898066A2 (en
EP0898066B1 (en
Inventor
Nobuyuki Shibagaki
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor 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 Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of EP0898066A2 publication Critical patent/EP0898066A2/en
Publication of EP0898066A3 publication Critical patent/EP0898066A3/en
Application granted granted Critical
Publication of EP0898066B1 publication Critical patent/EP0898066B1/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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1497—With detection of the mechanical response of the engine
    • F02D41/1498—With detection of the mechanical response of the engine measuring engine roughness
    • 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
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
    • F02D2200/1015—Engines misfires

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

The elapsed time Ta(i) of a 30° crank angle near top dead center of compression and the elapsed time Tb(i) of a 30° crank angle near 90° after top dead center of compression are found. The difference DTa(i) of the elapsed times Ta(i) between 720° crank angle for a first cylinder and a second cylinder performing combustion after the first cylinder is found. The assumed elapsed time when assuming that there is no torque fluctuation is calculated from the difference DTa(i) of the elapsed time of the first cylinder and the elapsed time of the second cylinder is calculated and the assumed elapsed time is used to calculate the basic amount of torque fluctuation. A set value is found based on the engine speed. The set value represents a deviation of the basic amount of torque fluctuation due to the detection error of the elapsed time, and due to the torsional vibration of the engine drive system and the torsional vibration of the crankshaft. The set value is subtracted from the basic amount of torque fluctuation to calculate the amount of torque fluctuation. The air-fuel ratio is controlled based on the amount of torque fluctuation.
EP19980113470 1997-07-22 1998-07-20 Method of controlling an air-fuel ratio of an engine Expired - Lifetime EP0898066B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP196123/97 1997-07-22
JP19612397A JP3216577B2 (en) 1997-07-22 1997-07-22 Air-fuel ratio control method for internal combustion engine
JP19612397 1997-07-22

Publications (3)

Publication Number Publication Date
EP0898066A2 EP0898066A2 (en) 1999-02-24
EP0898066A3 true EP0898066A3 (en) 2000-05-31
EP0898066B1 EP0898066B1 (en) 2003-09-10

Family

ID=16352634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980113470 Expired - Lifetime EP0898066B1 (en) 1997-07-22 1998-07-20 Method of controlling an air-fuel ratio of an engine

Country Status (3)

Country Link
EP (1) EP0898066B1 (en)
JP (1) JP3216577B2 (en)
DE (1) DE69817952T2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4055991B2 (en) * 2002-10-04 2008-03-05 本田技研工業株式会社 Engine stroke discrimination device
JP4530080B2 (en) 2008-06-20 2010-08-25 トヨタ自動車株式会社 Control device for internal combustion engine
DE202015003271U1 (en) * 2015-05-04 2016-08-05 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Computer program and computer program product Control of an internal combustion engine and internal combustion engine
JP7287070B2 (en) * 2019-04-02 2023-06-06 マツダ株式会社 CONTROL DEVICE AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562818A (en) * 1983-07-05 1986-01-07 Nippon Soken, Inc. Method and apparatus for controlling the air-fuel ratio in an internal combustion engine
EP0437057A1 (en) * 1990-01-08 1991-07-17 Hitachi, Ltd. Method and apparatus for detecting combustion conditions in a multicylinder internal combustion engine
US5485374A (en) * 1992-06-03 1996-01-16 Hitachi, Ltd. Combustion-conditon diagnostic system and method for a multicylinder engine
US5517970A (en) * 1994-06-23 1996-05-21 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Fuel feeding system and method for internal combustion engine
DE19544720C1 (en) * 1995-11-30 1997-03-13 Siemens Ag Internal combustion engine misfiring detection method e.g. for multiple cylinder engines
EP0849456A2 (en) * 1996-12-19 1998-06-24 Toyota Jidosha Kabushiki Kaisha Method of controlling an air-fuel ratio of an engine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0733809B2 (en) 1984-06-27 1995-04-12 株式会社日本自動車部品総合研究所 Internal combustion engine output fluctuation measurement method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562818A (en) * 1983-07-05 1986-01-07 Nippon Soken, Inc. Method and apparatus for controlling the air-fuel ratio in an internal combustion engine
EP0437057A1 (en) * 1990-01-08 1991-07-17 Hitachi, Ltd. Method and apparatus for detecting combustion conditions in a multicylinder internal combustion engine
US5485374A (en) * 1992-06-03 1996-01-16 Hitachi, Ltd. Combustion-conditon diagnostic system and method for a multicylinder engine
US5517970A (en) * 1994-06-23 1996-05-21 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Fuel feeding system and method for internal combustion engine
DE19544720C1 (en) * 1995-11-30 1997-03-13 Siemens Ag Internal combustion engine misfiring detection method e.g. for multiple cylinder engines
EP0849456A2 (en) * 1996-12-19 1998-06-24 Toyota Jidosha Kabushiki Kaisha Method of controlling an air-fuel ratio of an engine

Also Published As

Publication number Publication date
JP3216577B2 (en) 2001-10-09
DE69817952T2 (en) 2004-07-15
EP0898066A2 (en) 1999-02-24
EP0898066B1 (en) 2003-09-10
JPH1136951A (en) 1999-02-09
DE69817952D1 (en) 2003-10-16

Similar Documents

Publication Publication Date Title
EP0742359A3 (en) Method and apparatus for controlling the operation of an internal combustion engine
EP0413031A4 (en) Output controller of internal combustion engine
WO2006013166A3 (en) Device and method for control of an internal combustion engine on a start
EP1308342A3 (en) An engine torque determination for a powertrain with torque converter
EP0802317A3 (en) Active driveline damping
EP1293659A3 (en) Control system and method for an internal combustion engine
EP1571315A3 (en) Control system and method for motor vehicles
EP1247971A3 (en) Control system and method for an internal combustion engine
EP0670482A3 (en) Procedure for determining the torque transmitted to the crankshaft of a combustion engine by the combustion gas forces.
EP1245813A3 (en) Exhaust emission control system of internal combustion engine
EP1028245A3 (en) Air-fuel ratio control system for internal combustion engine
EP1136721A3 (en) Balancer shaft for an internal combustion engine
EP0947682A3 (en) Idle speed control device for engine
EP0892161A3 (en) Ignition timing control apparatus and method for internal combustion engine
FR2714697B1 (en) System for regulating the supercharging of an internal combustion engine.
US4608952A (en) Balancer control device for multiple-cylinder four-cycle engine
EP0940572A3 (en) A method for controlling engine idle speed
EP1209355A2 (en) Cranking-caused vibration suppressing apparatus and method for internal combustion engine
EP0683310A3 (en) Injection timing and power balancing control for gaseous fuel engines
EP0898066A3 (en) Method of controlling an air-fuel ratio of an engine
EP1365129A3 (en) Method and apparatus for controlling an internal combustion engine
EP1310636A3 (en) A System and Method for an Engine
FR2713286B1 (en) Method for correcting the torque surges of an internal combustion engine.
FR2747467B1 (en) METHOD FOR ESTIMATING THE TORQUE DELIVERED BY AN INTERNAL COMBUSTION ENGINE
CA2375035A1 (en) Engine starting control system and method therefor

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: 19980721

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid

Free format text: DE FR GB

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

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69817952

Country of ref document: DE

Date of ref document: 20031016

Kind code of ref document: P

ET Fr: translation filed
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: 20040614

REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

Effective date: 20061025

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

Ref country code: FR

Payment date: 20090710

Year of fee payment: 12

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

Ref country code: GB

Payment date: 20090715

Year of fee payment: 12

Ref country code: DE

Payment date: 20090716

Year of fee payment: 12

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100720

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110331

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: 20110201

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69817952

Country of ref document: DE

Effective date: 20110201

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: 20100802

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

Ref country code: GB

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

Effective date: 20100720