JPS5618037A - Fuel controller - Google Patents

Fuel controller

Info

Publication number
JPS5618037A
JPS5618037A JP9263979A JP9263979A JPS5618037A JP S5618037 A JPS5618037 A JP S5618037A JP 9263979 A JP9263979 A JP 9263979A JP 9263979 A JP9263979 A JP 9263979A JP S5618037 A JPS5618037 A JP S5618037A
Authority
JP
Japan
Prior art keywords
control
fuel
feedback
stopped
block
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
JP9263979A
Other languages
Japanese (ja)
Other versions
JPS6254975B2 (en
Inventor
Hideyuki Tamura
Toshio Enoshima
Shoji Furuhashi
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 JP9263979A priority Critical patent/JPS5618037A/en
Publication of JPS5618037A publication Critical patent/JPS5618037A/en
Publication of JPS6254975B2 publication Critical patent/JPS6254975B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To improve the safety and drivability of an engine after a completion of its deceleration, by stopping a feedback control also in a range where the fuel cut is not performed when the engine is decelerated.
CONSTITUTION: A fuel injection quantity Ti, after the calculation of a basic quantity Tp from an intake air quantity Q and engine rotational speed N, is obtained on the basis of feedback coefficient α of an air-fuel ratio by calculating a correction coefficient C corresponding to a water temperature and speed acceleration deceleration. Said feedback coefficient α makes is the fitst place a decision whether to execute or to stop the feedback control of an air-fuel ratio in a block 31, and the feedback control is stopped for the water at low temperature, exhaust sensor at low temperature, fuel out off, increase of fuel quantity due to the high load or rapid acceleration, and the like. When the control is not stopped, an exhaust sensor output VO is read and compared with a reference value Vs. In blocks 34, 35, a proportional control component P and integral control component I are calculated, and in a block 36 the feedback coefficient α=P+1 is calculated from the control components P, I described before. In block 37, α=1 is obtained and the feedback control is stopped.
COPYRIGHT: (C)1981,JPO&Japio
JP9263979A 1979-07-23 1979-07-23 Fuel controller Granted JPS5618037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9263979A JPS5618037A (en) 1979-07-23 1979-07-23 Fuel controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9263979A JPS5618037A (en) 1979-07-23 1979-07-23 Fuel controller

Publications (2)

Publication Number Publication Date
JPS5618037A true JPS5618037A (en) 1981-02-20
JPS6254975B2 JPS6254975B2 (en) 1987-11-17

Family

ID=14060011

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9263979A Granted JPS5618037A (en) 1979-07-23 1979-07-23 Fuel controller

Country Status (1)

Country Link
JP (1) JPS5618037A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848741A (en) * 1981-09-03 1983-03-22 Toyota Motor Corp Method of controlling air-fuel ratio of internal- combustion engine
JPS58184392A (en) * 1982-04-21 1983-10-27 三菱マテリアル株式会社 Method of sealing position where hole is bored
JPS60111033A (en) * 1983-11-18 1985-06-17 Suzuki Motor Co Ltd Air-fuel ratio controller
JPS6116244A (en) * 1984-07-04 1986-01-24 Toyota Motor Corp Air-fuel ratio controlling method of internal-combustion engine
JPS6229741A (en) * 1985-07-31 1987-02-07 Suzuki Motor Co Ltd Air-fuel ratio controller

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5154127A (en) * 1974-11-06 1976-05-13 Nissan Motor Kunenhifuiidobatsukuseigyosochi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5154127A (en) * 1974-11-06 1976-05-13 Nissan Motor Kunenhifuiidobatsukuseigyosochi

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5848741A (en) * 1981-09-03 1983-03-22 Toyota Motor Corp Method of controlling air-fuel ratio of internal- combustion engine
JPH0325623B2 (en) * 1981-09-03 1991-04-08 Toyota Motor Co Ltd
JPS58184392A (en) * 1982-04-21 1983-10-27 三菱マテリアル株式会社 Method of sealing position where hole is bored
JPH0241680B2 (en) * 1982-04-21 1990-09-18
JPS60111033A (en) * 1983-11-18 1985-06-17 Suzuki Motor Co Ltd Air-fuel ratio controller
JPS6116244A (en) * 1984-07-04 1986-01-24 Toyota Motor Corp Air-fuel ratio controlling method of internal-combustion engine
JPS6229741A (en) * 1985-07-31 1987-02-07 Suzuki Motor Co Ltd Air-fuel ratio controller

Also Published As

Publication number Publication date
JPS6254975B2 (en) 1987-11-17

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