JPS57173538A - Air-fuel ratio controller - Google Patents

Air-fuel ratio controller

Info

Publication number
JPS57173538A
JPS57173538A JP5774581A JP5774581A JPS57173538A JP S57173538 A JPS57173538 A JP S57173538A JP 5774581 A JP5774581 A JP 5774581A JP 5774581 A JP5774581 A JP 5774581A JP S57173538 A JPS57173538 A JP S57173538A
Authority
JP
Japan
Prior art keywords
acceleration
intake pressure
read
difference
data
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.)
Pending
Application number
JP5774581A
Other languages
Japanese (ja)
Inventor
Morinaga Okada
Kazuhiro Kato
Hideo Wakata
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP5774581A priority Critical patent/JPS57173538A/en
Publication of JPS57173538A publication Critical patent/JPS57173538A/en
Pending 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
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/10—Introducing corrections for particular operating conditions for acceleration

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

PURPOSE:To improve driveability at acceleration, by obtaining a change of intake pressure correspondingly to the acceleration of an engine and controlling acceleration correction of air-fuel ratio in accordance with this obtained value. CONSTITUTION:Each output of a speed sensor 2, intake pressure sensor 4 and exhaust sensor 6 is read by a microprocessor 14 in an electronic control device 7 respectively through a waveform shaper circuit 10, A/D converter 11 and R/L discriminator circuit 12 and stored in a RAM15. Then data PMt, read with an intake pressure signal synchronously with a rotary speed signal, and one time prededing data PMt-1 are averaged, and its mean value Pm is calculated and stored in the RAM15. Further the above described data Pm is read at each pulse signal from a timer device 17 to calculate a difference between successive two intake pressure data Pm1, Pm2. This difference, if larger than an acceleration decision value of a ROM16, is decided as acceleration, and a solenoid valve 9 is controlled by a correction signal, in accordance with the difference, through a driving device 19.
JP5774581A 1981-04-16 1981-04-16 Air-fuel ratio controller Pending JPS57173538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5774581A JPS57173538A (en) 1981-04-16 1981-04-16 Air-fuel ratio controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5774581A JPS57173538A (en) 1981-04-16 1981-04-16 Air-fuel ratio controller

Publications (1)

Publication Number Publication Date
JPS57173538A true JPS57173538A (en) 1982-10-25

Family

ID=13064435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5774581A Pending JPS57173538A (en) 1981-04-16 1981-04-16 Air-fuel ratio controller

Country Status (1)

Country Link
JP (1) JPS57173538A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01190948A (en) * 1988-01-25 1989-08-01 Nippon Denshi Kagaku Kk Hesitation judging device for engine
JP2013142292A (en) * 2012-01-06 2013-07-22 Toyota Motor Corp Data processing apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01190948A (en) * 1988-01-25 1989-08-01 Nippon Denshi Kagaku Kk Hesitation judging device for engine
JP2013142292A (en) * 2012-01-06 2013-07-22 Toyota Motor Corp Data processing apparatus

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