JPS5724426A - Control method of air-fuel ratio and its device - Google Patents

Control method of air-fuel ratio and its device

Info

Publication number
JPS5724426A
JPS5724426A JP9888980A JP9888980A JPS5724426A JP S5724426 A JPS5724426 A JP S5724426A JP 9888980 A JP9888980 A JP 9888980A JP 9888980 A JP9888980 A JP 9888980A JP S5724426 A JPS5724426 A JP S5724426A
Authority
JP
Japan
Prior art keywords
engine
fuel injection
temperature sensor
read
wall
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
JP9888980A
Other languages
Japanese (ja)
Other versions
JPS6052301B2 (en
Inventor
Shigenori Isomura
Katsuhiko Kigami
Toshio Kondo
Shuji Sakakibara
Akio Kobayashi
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 JP9888980A priority Critical patent/JPS6052301B2/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 JPS5724426A publication Critical patent/JPS5724426A/en
Publication of JPS6052301B2 publication Critical patent/JPS6052301B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To achieve purification of exhaust gas of an engine without worsening feeling of its operation when the engine is warmed up or the like, by estimating fuel quantity adhering to the wall of an intake pipe on the basis of information showing load and warm up states of the engine and correcting feed quantity of fuel so as to meet the above action.
CONSTITUTION: At operation, engine speed N is firstly read from a speed counter 101 to which a speed sensor 12 is connected, and 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 injection quantity determined by N, Q. Secondly detection of an engine loaded state is performed after reading cooling water and port wall temperatures from th above described port 14. Then 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 increase amount of correction in accordance with ΔT is read to correct fuel injection pulse width of a fuel injection valve 5.
COPYRIGHT: (C)1982,JPO&Japio
JP9888980A 1980-07-18 1980-07-18 Air fuel ratio control device Expired JPS6052301B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP9888980A JPS6052301B2 (en) 1980-07-18 1980-07-18 Air fuel ratio control device
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
JP9888980A JPS6052301B2 (en) 1980-07-18 1980-07-18 Air fuel ratio control device

Publications (2)

Publication Number Publication Date
JPS5724426A true JPS5724426A (en) 1982-02-09
JPS6052301B2 JPS6052301B2 (en) 1985-11-18

Family

ID=14231699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9888980A Expired JPS6052301B2 (en) 1980-07-18 1980-07-18 Air fuel ratio control device

Country Status (1)

Country Link
JP (1) JPS6052301B2 (en)

Cited By (10)

* 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
JPS58144640A (en) * 1982-02-24 1983-08-29 Toyota Motor Corp Electronically controlled fuel injecting method for internal-combustion engine
JPS58144636A (en) * 1982-02-23 1983-08-29 Toyota Motor Corp Electronically controlled fuel injecting method for internal-combustion engine
JPS58150042A (en) * 1982-03-02 1983-09-06 Toyota Motor Corp Electronically controlled fuel injection method of internal-combustion engine
JPS60162029A (en) * 1984-02-01 1985-08-23 Hitachi Ltd Fuel injection control method of engine
JPS6282242A (en) * 1985-10-07 1987-04-15 Nippon Denso Co Ltd Air-fuel ratio controller for internal combustion engine
JPS6282247A (en) * 1985-10-03 1987-04-15 Nippon Denso Co Ltd Air-fuel ratio controller for internal combustion engine
JPS6293445A (en) * 1985-10-18 1987-04-28 Honda Motor Co Ltd Fuel feed control method on start of internal combustion engine
JPS62237050A (en) * 1986-04-07 1987-10-17 Nissan Motor Co Ltd Air-fuel ratio control device for internal combustion engine
JPH06280651A (en) * 1994-01-10 1994-10-04 Hitachi Ltd Method of controlling fuel injection of engine and device therefor

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62341B2 (en) * 1981-08-26 1987-01-07 Nippon Denso Co
JPS5835238A (en) * 1981-08-26 1983-03-01 Nippon Denso Co Ltd Control method of air-fuel ratio
JPS58144636A (en) * 1982-02-23 1983-08-29 Toyota Motor Corp Electronically controlled fuel injecting method for internal-combustion engine
JPH059621B2 (en) * 1982-02-23 1993-02-05 Toyota Motor Co Ltd
JPH0423098B2 (en) * 1982-02-24 1992-04-21 Toyota Motor Co Ltd
JPS58144640A (en) * 1982-02-24 1983-08-29 Toyota Motor Corp Electronically controlled fuel injecting method for internal-combustion engine
JPS58150042A (en) * 1982-03-02 1983-09-06 Toyota Motor Corp Electronically controlled fuel injection method of internal-combustion engine
JPH0510490B2 (en) * 1982-03-02 1993-02-09 Toyota Motor Co Ltd
JPS60162029A (en) * 1984-02-01 1985-08-23 Hitachi Ltd Fuel injection control method of engine
JPS6282247A (en) * 1985-10-03 1987-04-15 Nippon Denso Co Ltd Air-fuel ratio controller for internal combustion engine
JPS6282242A (en) * 1985-10-07 1987-04-15 Nippon Denso Co Ltd Air-fuel ratio controller for internal combustion engine
JPH03493B2 (en) * 1985-10-18 1991-01-08 Honda Motor Co Ltd
JPS6293445A (en) * 1985-10-18 1987-04-28 Honda Motor Co Ltd Fuel feed control method on start of internal combustion engine
JPS62237050A (en) * 1986-04-07 1987-10-17 Nissan Motor Co Ltd Air-fuel ratio control device for internal combustion engine
JPH06280651A (en) * 1994-01-10 1994-10-04 Hitachi Ltd Method of controlling fuel injection of engine and device therefor

Also Published As

Publication number Publication date
JPS6052301B2 (en) 1985-11-18

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