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JPS648331A - Fuel controller of internal combustion engine - Google Patents

Fuel controller of internal combustion engine

Info

Publication number
JPS648331A
JPS648331A JP16431587A JP16431587A JPS648331A JP S648331 A JPS648331 A JP S648331A JP 16431587 A JP16431587 A JP 16431587A JP 16431587 A JP16431587 A JP 16431587A JP S648331 A JPS648331 A JP S648331A
Authority
JP
Japan
Prior art keywords
exhaust gas
output
gas sensor
air
sensor
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
JP16431587A
Other languages
Japanese (ja)
Inventor
Yoshiaki Sugano
Katsuya Nakamoto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP16431587A priority Critical patent/JPS648331A/en
Publication of JPS648331A publication Critical patent/JPS648331A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To precisely perform fuel control by detecting the abnormality in an exhaust gas sensor in the case where such state that the output of the exhaust gas sensor becomes larger than the reference value for feed back and the preset value becomes smaller than the normal value in rich running continues for a specific time. CONSTITUTION:Based on each output from the air flow sensor 13 arranged in the downstream course of an air cleaner 10 and the crank angle sensor 17 installed to an engine 1, an AN operating means 21 operates the real inlet volume of air through an AN detecting means 20, and the result is input in a control means 22. The air-fuel ratio detected by the exhaust gas sensor 19 provided to an exhaust pipe and each output of an idle switch 23 and water temperature sensor 18 are input in a control means 2, which controls the driving hour of an injector 14. At this time, in the case where such state that the output of the exhaust gas sensor 19 becomes a specific value or more in high-load running of the engine continues for a specific time, feed back control stops.
JP16431587A 1987-06-30 1987-06-30 Fuel controller of internal combustion engine Pending JPS648331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16431587A JPS648331A (en) 1987-06-30 1987-06-30 Fuel controller of internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16431587A JPS648331A (en) 1987-06-30 1987-06-30 Fuel controller of internal combustion engine

Publications (1)

Publication Number Publication Date
JPS648331A true JPS648331A (en) 1989-01-12

Family

ID=15790811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16431587A Pending JPS648331A (en) 1987-06-30 1987-06-30 Fuel controller of internal combustion engine

Country Status (1)

Country Link
JP (1) JPS648331A (en)

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