JPS5744747A - Controlling device of air-fuel ratio - Google Patents

Controlling device of air-fuel ratio

Info

Publication number
JPS5744747A
JPS5744747A JP11825980A JP11825980A JPS5744747A JP S5744747 A JPS5744747 A JP S5744747A JP 11825980 A JP11825980 A JP 11825980A JP 11825980 A JP11825980 A JP 11825980A JP S5744747 A JPS5744747 A JP S5744747A
Authority
JP
Japan
Prior art keywords
deceleration
time
output
opening
integrator
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
JP11825980A
Other languages
Japanese (ja)
Inventor
Shinichi Sato
Mitsuharu Taura
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP11825980A priority Critical patent/JPS5744747A/en
Publication of JPS5744747A publication Critical patent/JPS5744747A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To prevent troubles due to air-fuel ratio in an idle time during deceleration or after the end of deceleration by a method wherein such a means is provided that at the start of deceleration outputs of an integrator are changed into values corresponding to openings slightly larger than the mean opening of a controlling valve in an idle time.
CONSTITUTION: An electronic controlling part 8 including an adder 30 and the like is provided by which at the start of deceleration outputs of the integrator 17 are changed into values corresponding to openings a little larger than the mean opening of the controlling valve 9 in an ield time. When a throttle valve close at t1 and deceleration begins, a negative pressure exceeding an intended value is taken out from a throttle port, the output of a negative pressure switch 10 is given by "1", a monostable multivibrator 37 generates pulses of an intended width T from t1. The output "1" is transmitted to a switch 22 and keeps a closed state until time t2 when an intended time T passes from time t1. As a result a capacitor 19 is discharged or charged and the voltage between both ends is given by V0. Accordingly, the output of an adder 30 takes a value Va corresponding to an output V0 of the integrator 17 and the opening of the controlling value 9 keeps an opening a little larger than the mean opening in an idle time.
COPYRIGHT: (C)1982,JPO&Japio
JP11825980A 1980-08-29 1980-08-29 Controlling device of air-fuel ratio Pending JPS5744747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11825980A JPS5744747A (en) 1980-08-29 1980-08-29 Controlling device of air-fuel ratio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11825980A JPS5744747A (en) 1980-08-29 1980-08-29 Controlling device of air-fuel ratio

Publications (1)

Publication Number Publication Date
JPS5744747A true JPS5744747A (en) 1982-03-13

Family

ID=14732187

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11825980A Pending JPS5744747A (en) 1980-08-29 1980-08-29 Controlling device of air-fuel ratio

Country Status (1)

Country Link
JP (1) JPS5744747A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62170746A (en) * 1986-01-22 1987-07-27 Hitachi Ltd Electronic fuel injection device
US4798650A (en) * 1987-03-27 1989-01-17 Fujitsu Limited Method of dry etching aluminum
JPH08236509A (en) * 1995-11-10 1996-09-13 Hitachi Ltd Method and device for substrate processing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311234A (en) * 1976-07-13 1978-02-01 Nissan Motor Co Ltd Air fuel ratio controlling apparatus
JPS56141035A (en) * 1980-04-07 1981-11-04 Nippon Denso Co Ltd Air to fuel ratio control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311234A (en) * 1976-07-13 1978-02-01 Nissan Motor Co Ltd Air fuel ratio controlling apparatus
JPS56141035A (en) * 1980-04-07 1981-11-04 Nippon Denso Co Ltd Air to fuel ratio control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62170746A (en) * 1986-01-22 1987-07-27 Hitachi Ltd Electronic fuel injection device
US4798650A (en) * 1987-03-27 1989-01-17 Fujitsu Limited Method of dry etching aluminum
JPH08236509A (en) * 1995-11-10 1996-09-13 Hitachi Ltd Method and device for substrate processing

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