JPS5593935A - Control method of air-fuel ratio - Google Patents

Control method of air-fuel ratio

Info

Publication number
JPS5593935A
JPS5593935A JP68079A JP68079A JPS5593935A JP S5593935 A JPS5593935 A JP S5593935A JP 68079 A JP68079 A JP 68079A JP 68079 A JP68079 A JP 68079A JP S5593935 A JPS5593935 A JP S5593935A
Authority
JP
Japan
Prior art keywords
fuel ratio
air
carburetor
signal
control method
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
JP68079A
Other languages
Japanese (ja)
Other versions
JPS6253701B2 (en
Inventor
Takeshi Atago
Yasunori Mori
Toshio 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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP68079A priority Critical patent/JPS5593935A/en
Publication of JPS5593935A publication Critical patent/JPS5593935A/en
Publication of JPS6253701B2 publication Critical patent/JPS6253701B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To make an air-fuel ratio controllable in high precision, by correcting the air-fuel ratio, which has been previously controlled to a stored value, from an air- fuel ratio obtained through O2 sensor.
CONSTITUTION: Though with fuel fed to an engine EN by a carburetor CB, an actuator AC is provided in this carburetor CB to change an air-fuel ratio. On the other hand, a combustion mixture in the engine EN is sensed by an O2 sensor OS provided in an exhaust pipe and a signal of rich.lean with respect to the set value is inputted to a control circuit CU. In the control circuit CU, a deviation is detected from a set logical air-fuel ratio by this signal, and a signal processing is performed to actuate the actuator AC, and a feed back control is operated for the air-fuel ratio of the carburetor CB so to be the set logical air-fuel ratio.
COPYRIGHT: (C)1980,JPO&Japio
JP68079A 1979-01-10 1979-01-10 Control method of air-fuel ratio Granted JPS5593935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP68079A JPS5593935A (en) 1979-01-10 1979-01-10 Control method of air-fuel ratio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP68079A JPS5593935A (en) 1979-01-10 1979-01-10 Control method of air-fuel ratio

Publications (2)

Publication Number Publication Date
JPS5593935A true JPS5593935A (en) 1980-07-16
JPS6253701B2 JPS6253701B2 (en) 1987-11-11

Family

ID=11480461

Family Applications (1)

Application Number Title Priority Date Filing Date
JP68079A Granted JPS5593935A (en) 1979-01-10 1979-01-10 Control method of air-fuel ratio

Country Status (1)

Country Link
JP (1) JPS5593935A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5799246A (en) * 1980-10-18 1982-06-19 Bosch Gmbh Robert Fuel supply control apparatus of internal combustion engine
JPS58180747A (en) * 1982-04-19 1983-10-22 Nissan Motor Co Ltd Feedback controller of air-fuel ratio

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54130729A (en) * 1978-03-22 1979-10-11 Bosch Gmbh Robert Method of and apparatus for determining controlled variable of internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54130729A (en) * 1978-03-22 1979-10-11 Bosch Gmbh Robert Method of and apparatus for determining controlled variable of internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5799246A (en) * 1980-10-18 1982-06-19 Bosch Gmbh Robert Fuel supply control apparatus of internal combustion engine
JPS58180747A (en) * 1982-04-19 1983-10-22 Nissan Motor Co Ltd Feedback controller of air-fuel ratio

Also Published As

Publication number Publication date
JPS6253701B2 (en) 1987-11-11

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