JPS6487845A - Air-fuel ratio control system - Google Patents

Air-fuel ratio control system

Info

Publication number
JPS6487845A
JPS6487845A JP24380287A JP24380287A JPS6487845A JP S6487845 A JPS6487845 A JP S6487845A JP 24380287 A JP24380287 A JP 24380287A JP 24380287 A JP24380287 A JP 24380287A JP S6487845 A JPS6487845 A JP S6487845A
Authority
JP
Japan
Prior art keywords
air
correction
correction factor
accelerator
revolutions
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
JP24380287A
Other languages
Japanese (ja)
Inventor
Toshimichi Minowa
Yutaka Nishimura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP24380287A priority Critical patent/JPS6487845A/en
Publication of JPS6487845A publication Critical patent/JPS6487845A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/82Post-polymerisation treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE:To improve the accuracy in controlling an air-fuel ratio by determining the quantity of fuel injection based on both the stroke of accelerator pedal footing and revolutions, and controlling a throttle valve by use of the correction of acceleration corresponding to an amount of air and the delay in fuel feed obtained on the basis of those such as the stroke of accelerator pedal footing, the change ratio thereof and revolutions. CONSTITUTION:Revolution signals N and water temperature signals Tw are inputted into a microprocessor 6 together with detected values from an air flow meter 2, an air-fuel ratio sensor 4, a crank angle sensor CS, an accelerator opening sensor 5 and the like so as to perform an operational control of the opening time of a fuel injection valve 7. The microprocessor 6 determines the quantity of fuel injection based on those such as the accelerator opening, revolutions and water temperature. And an acceleration correction factor and a load correction factor are obtained from the change rate of the accelerator and the stroke of accelerator pedal footing respectively so as to make the correction to an amount of air based on those such as these correction factors, a revolution correction factor and a water temperature correction factor for controlling the opening of a throttle valve 9 via a throttle actuator 8.
JP24380287A 1987-09-30 1987-09-30 Air-fuel ratio control system Pending JPS6487845A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24380287A JPS6487845A (en) 1987-09-30 1987-09-30 Air-fuel ratio control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24380287A JPS6487845A (en) 1987-09-30 1987-09-30 Air-fuel ratio control system

Publications (1)

Publication Number Publication Date
JPS6487845A true JPS6487845A (en) 1989-03-31

Family

ID=17109161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24380287A Pending JPS6487845A (en) 1987-09-30 1987-09-30 Air-fuel ratio control system

Country Status (1)

Country Link
JP (1) JPS6487845A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7305939B2 (en) * 2005-04-25 2007-12-11 Grant B. Carlson Addition of flexible fuel engine control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7305939B2 (en) * 2005-04-25 2007-12-11 Grant B. Carlson Addition of flexible fuel engine control system

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