JPS6432045A - Fuel controller for internal combustion engine - Google Patents

Fuel controller for internal combustion engine

Info

Publication number
JPS6432045A
JPS6432045A JP18706887A JP18706887A JPS6432045A JP S6432045 A JPS6432045 A JP S6432045A JP 18706887 A JP18706887 A JP 18706887A JP 18706887 A JP18706887 A JP 18706887A JP S6432045 A JPS6432045 A JP S6432045A
Authority
JP
Japan
Prior art keywords
air
value
sensor
intake air
learning
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
JP18706887A
Other languages
Japanese (ja)
Inventor
Hiromichi Miwa
Masaaki Uchida
Yoshihisa Kawamura
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP18706887A priority Critical patent/JPS6432045A/en
Publication of JPS6432045A publication Critical patent/JPS6432045A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE:To prevent slippage in an air-fuel ratio due to variations and secular change of an intake air quantity detecting device by storing a compensating quantity by air-fuel feedback compensation, and finding the compensating quantity of an output characteristic value of the intake air quantity detecting device from the stored value at an equal intake air quantity area. CONSTITUTION:Each detected value of an air flow sensor 1, a crank angle sensor 2, an air-fuel ratio sensor 3, a water temperature sensor 4, a throttle valve opening sensor 5, etc., is inputted into a control unit 10, and a fundamental fuel injection quantity calculated by intake air quantity and engine speed is compensated by a feedback compensation factor or the like on the basis of the detected value of the air-fuel ratio sensor 3. On the basis of this feedback compensation factor, a learning vale at every learning area determined by the fundamental fuel injection quantity and the engine speed is renewed. A compensation quantity of the output characteristic value of the air flow sensor 1 is operated and stored from a value at an equal intake air quantity area of this learning value, and variations in the output characteristic of the air flow meter 1 is compensated.
JP18706887A 1987-07-27 1987-07-27 Fuel controller for internal combustion engine Pending JPS6432045A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18706887A JPS6432045A (en) 1987-07-27 1987-07-27 Fuel controller for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18706887A JPS6432045A (en) 1987-07-27 1987-07-27 Fuel controller for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS6432045A true JPS6432045A (en) 1989-02-02

Family

ID=16199579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18706887A Pending JPS6432045A (en) 1987-07-27 1987-07-27 Fuel controller for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS6432045A (en)

Similar Documents

Publication Publication Date Title
US4542729A (en) Air/fuel ratio control method having fail-safe function for abnormalities in oxygen concentration detecting means for internal combustion engines
JPS6453043A (en) Air-fuel ratio controller for internal combustion engine
JPS643248A (en) Air-fuel ratio control device for internal combustion engine
KR900005046A (en) Air-fuel ratio control method and control device of internal combustion engine
US5359980A (en) Apparatus for controlling fuel delivery to engine associated with evaporated fuel purging unit
JPS6412046A (en) Air-fuel control apparatus of internal combustion engine
KR870004231A (en) Fuel injection control device of internal combustion engine
US4982714A (en) Air-fuel control apparatus for an internal combustion engine
US4570599A (en) Air-fuel ratio feedback control system for internal combustion engines, capable of achieving proper air-fuel ratios from the start of the engine
JPS6432045A (en) Fuel controller for internal combustion engine
JPS6441637A (en) Air-fuel ratio control device for internal combustion engine
JPS6424142A (en) Control method for internal combustion engine
US4713766A (en) Method and apparatus for controlling air-fuel ratio in internal combustion engine
JPS6419143A (en) Fuel controller internal combustion engine
JPS643245A (en) Air/fuel ratio control device for internal combustion engine
JPS5718453A (en) Ignition timing control method for internal combustion engine
JPS6453041A (en) Air-fuel ratio controller for internal combustion engine
JPS62189333A (en) Air-fuel ratio control device for alcohol-gasoline mixed fuel
JPS6487842A (en) Air-fuel ratio control device for internal combustion engine
JPS6412048A (en) Fuel control apparatus of internal combustion engine
JPS6432037A (en) Fuel injection controller
JPS6221735Y2 (en)
JPS6487847A (en) Fuel injection timing control for internal combustion engine
JPS6460743A (en) Air-fuel ratio control device
JPS6419139A (en) Fuel supply control device for internal combustion engine