EP0134083A3 - Control system for air/fuel ratio adjustment system - Google Patents

Control system for air/fuel ratio adjustment system Download PDF

Info

Publication number
EP0134083A3
EP0134083A3 EP84304553A EP84304553A EP0134083A3 EP 0134083 A3 EP0134083 A3 EP 0134083A3 EP 84304553 A EP84304553 A EP 84304553A EP 84304553 A EP84304553 A EP 84304553A EP 0134083 A3 EP0134083 A3 EP 0134083A3
Authority
EP
European Patent Office
Prior art keywords
air
fuel ratio
control system
adjustment system
ratio adjustment
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.)
Withdrawn
Application number
EP84304553A
Other languages
German (de)
French (fr)
Other versions
EP0134083A2 (en
Inventor
Neville Herbert Daniel
Hugh Malcolm Duncan
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.)
Rover Co Ltd
Original Assignee
Rover 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 Rover Co Ltd filed Critical Rover Co Ltd
Publication of EP0134083A2 publication Critical patent/EP0134083A2/en
Publication of EP0134083A3 publication Critical patent/EP0134083A3/en
Withdrawn legal-status Critical Current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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2451—Methods of calibrating or learning characterised by what is learned or calibrated
    • F02D41/2454—Learning of the air-fuel ratio control
    • 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
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2425—Particular ways of programming the data
    • F02D41/2429—Methods of calibrating or learning
    • F02D41/2441—Methods of calibrating or learning characterised by the learning conditions

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)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

The invention is concerned with a control system for an air/­ fuel ratio measurement and adjustment system for an internal combustion engine. In order to restrict operation of the air/fuel ratio measurement and adjustment system to occasions when adjustment is likely to be necessary, it is desirable to operate the system at approximately daily intervals. The control system incorporates an ambient temperature sensor and an engine coolant temperature sensor and is arranged to operate the measurement and adjustment system when the engine is started if the engine coolant temperature does not exceed the ambient temperature by more than a predetermined amount.
EP84304553A 1983-08-05 1984-07-04 Control system for air/fuel ratio adjustment system Withdrawn EP0134083A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08321176A GB2144541B (en) 1983-08-05 1983-08-05 Control system for air/fuel ratio adjustment
GB8321176 1983-08-05

Publications (2)

Publication Number Publication Date
EP0134083A2 EP0134083A2 (en) 1985-03-13
EP0134083A3 true EP0134083A3 (en) 1985-12-18

Family

ID=10546890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84304553A Withdrawn EP0134083A3 (en) 1983-08-05 1984-07-04 Control system for air/fuel ratio adjustment system

Country Status (4)

Country Link
EP (1) EP0134083A3 (en)
JP (1) JPS60104737A (en)
AU (1) AU3041384A (en)
GB (1) GB2144541B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE114704T1 (en) * 1988-08-17 1994-12-15 Zeneca Ltd REACTIVE DYES.
JPH03225049A (en) * 1990-01-31 1991-10-04 Toyota Motor Corp Air-fuel ratio control device for internal combustion engine
JP5005054B2 (en) * 2010-02-23 2012-08-22 本田技研工業株式会社 Starting clutch control device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716991A (en) * 1970-04-28 1973-02-20 Toyo Kogyo Co Exhaust gas purifying device
US4040394A (en) * 1972-09-14 1977-08-09 Robert Bosch Gmbh Apparatus repetitively controlling the composition of exhaust emissions from internal combustion engines, in predetermined intervals
FR2389001A1 (en) * 1977-04-27 1978-11-24 Magneti Marelli Spa ELECTRONIC EQUIPMENT FOR CONTROLLING THE SUPPLY OF AN AIR / GASOLINE MIXTURE IN AN INTERNAL COMBUSTION ENGINE
GB2014336A (en) * 1978-01-19 1979-08-22 Bedford T J Internal Combustion Engine Utilising Liquefied Gaseous Fuel
GB2023885A (en) * 1978-06-22 1980-01-03 Bendix Corp Closed loop system
EP0017932A2 (en) * 1979-04-13 1980-10-29 Hitachi, Ltd. Engine controlling method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57148039A (en) * 1981-03-10 1982-09-13 Nissan Motor Co Ltd Altitude corrector for engine fuel feeder

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716991A (en) * 1970-04-28 1973-02-20 Toyo Kogyo Co Exhaust gas purifying device
US4040394A (en) * 1972-09-14 1977-08-09 Robert Bosch Gmbh Apparatus repetitively controlling the composition of exhaust emissions from internal combustion engines, in predetermined intervals
FR2389001A1 (en) * 1977-04-27 1978-11-24 Magneti Marelli Spa ELECTRONIC EQUIPMENT FOR CONTROLLING THE SUPPLY OF AN AIR / GASOLINE MIXTURE IN AN INTERNAL COMBUSTION ENGINE
GB2014336A (en) * 1978-01-19 1979-08-22 Bedford T J Internal Combustion Engine Utilising Liquefied Gaseous Fuel
GB2023885A (en) * 1978-06-22 1980-01-03 Bendix Corp Closed loop system
EP0017932A2 (en) * 1979-04-13 1980-10-29 Hitachi, Ltd. Engine controlling method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 6, no. 253 (M-178)[1131], 11th December 1982; & JP - A - 57 148 039 (NISSAN JIDOSHA K.K.) 13-09-1982 *

Also Published As

Publication number Publication date
GB2144541B (en) 1987-12-09
AU3041384A (en) 1985-02-07
GB8321176D0 (en) 1983-09-07
JPS60104737A (en) 1985-06-10
EP0134083A2 (en) 1985-03-13
GB2144541A (en) 1985-03-06

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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

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI SE

PUAL Search report despatched

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17P Request for examination filed

Effective date: 19850822

AK Designated contracting states

Designated state(s): CH DE FR GB IT LI SE

17Q First examination report despatched

Effective date: 19861215

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19880209

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DANIEL, NEVILLE HERBERT

Inventor name: DUNCAN, HUGH MALCOLM