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JPS5724427A - Control method of air-fuel ratio - Google Patents

Control method of air-fuel ratio

Info

Publication number
JPS5724427A
JPS5724427A JP9889080A JP9889080A JPS5724427A JP S5724427 A JPS5724427 A JP S5724427A JP 9889080 A JP9889080 A JP 9889080A JP 9889080 A JP9889080 A JP 9889080A JP S5724427 A JPS5724427 A JP S5724427A
Authority
JP
Japan
Prior art keywords
engine
read
speed
fuel
water temperature
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
JP9889080A
Other languages
Japanese (ja)
Other versions
JPS6050974B2 (en
Inventor
Shigenori Isomura
Toshio Kondo
Katsuhiko Kigami
Akio Kobayashi
Shuji Sakakibara
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 JP9889080A priority Critical patent/JPS6050974B2/en
Priority to US06/283,914 priority patent/US4454847A/en
Priority to EP81105613A priority patent/EP0044537B1/en
Priority to DE8181105613T priority patent/DE3173111D1/en
Publication of JPS5724427A publication Critical patent/JPS5724427A/en
Publication of JPS6050974B2 publication Critical patent/JPS6050974B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To well hold operating feeling of an engine at its warming up or the like, by calculating a warm up state from prescribed parameter, estimating fuel quantity adhering to the wall of an intake pipe on the basis of said warm up state and engine loaded state and correcting feed quantity of fuel so as to meet the above action.
CONSTITUTION: At operation, firstly engine speed N is read from a speed counter 101 to which a speed sensor 12 is connected, simultaneously engine suction air quantity Q is read from an analog input port 104 to which an intake air temperature sensor 11, water temperature sensor 13 and wall temperature sensor 14 are connected, to calculate basic fuel injecton quantity determined by N, Q. Secondly, cooling water temperature is read to simulate port wall temperature from cooling water temperature and recorded speed after starting. Then after detecting an engine loaded state, a difference ΔT between basic fuel injection pulse width and prescribed round function value is decided for whether +, 0 or -. For instance, if ΔT>0, an increased amount of correcton in accordance with ΔT is read to correct fuel quantity.
COPYRIGHT: (C)1982,JPO&Japio
JP9889080A 1980-07-18 1980-07-18 Air fuel ratio control method Expired JPS6050974B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP9889080A JPS6050974B2 (en) 1980-07-18 1980-07-18 Air fuel ratio control method
US06/283,914 US4454847A (en) 1980-07-18 1981-07-16 Method for controlling the air-fuel ratio in an internal combustion engine
EP81105613A EP0044537B1 (en) 1980-07-18 1981-07-17 Method for controlling the amount of fuel injected into an internal combustion engine
DE8181105613T DE3173111D1 (en) 1980-07-18 1981-07-17 Method for controlling the amount of fuel injected into an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9889080A JPS6050974B2 (en) 1980-07-18 1980-07-18 Air fuel ratio control method

Publications (2)

Publication Number Publication Date
JPS5724427A true JPS5724427A (en) 1982-02-09
JPS6050974B2 JPS6050974B2 (en) 1985-11-11

Family

ID=14231724

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9889080A Expired JPS6050974B2 (en) 1980-07-18 1980-07-18 Air fuel ratio control method

Country Status (1)

Country Link
JP (1) JPS6050974B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5835238A (en) * 1981-08-26 1983-03-01 Nippon Denso Co Ltd Control method of air-fuel ratio
JPS6029813U (en) * 1983-08-06 1985-02-28 ド−エイ外装有限会社 Building joint cover
JPS60139046U (en) * 1984-02-28 1985-09-13 日産自動車株式会社 Internal combustion engine fuel supply system
JPS62162744A (en) * 1986-01-10 1987-07-18 Honda Motor Co Ltd Operating control for internal-combustion engine
US5497752A (en) * 1993-01-22 1996-03-12 Nippondenso Co., Ltd. Device for controlling fuel injection of an internal combustion engine
US5613360A (en) * 1994-02-18 1997-03-25 Toyota Jidosha Kabushiki Kaisha Warming up control device for a catalytic converter for an internal combustion engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0984982A (en) * 1995-09-20 1997-03-31 Kanto Sheet Seisakusho:Kk Thread breakage detector for sewing machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5835238A (en) * 1981-08-26 1983-03-01 Nippon Denso Co Ltd Control method of air-fuel ratio
JPS62341B2 (en) * 1981-08-26 1987-01-07 Nippon Denso Co
JPS6029813U (en) * 1983-08-06 1985-02-28 ド−エイ外装有限会社 Building joint cover
JPH0320405Y2 (en) * 1983-08-06 1991-05-01
JPS60139046U (en) * 1984-02-28 1985-09-13 日産自動車株式会社 Internal combustion engine fuel supply system
JPS62162744A (en) * 1986-01-10 1987-07-18 Honda Motor Co Ltd Operating control for internal-combustion engine
US5497752A (en) * 1993-01-22 1996-03-12 Nippondenso Co., Ltd. Device for controlling fuel injection of an internal combustion engine
US5613360A (en) * 1994-02-18 1997-03-25 Toyota Jidosha Kabushiki Kaisha Warming up control device for a catalytic converter for an internal combustion engine

Also Published As

Publication number Publication date
JPS6050974B2 (en) 1985-11-11

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