JPS54108126A - Air fuel ratio controller - Google Patents

Air fuel ratio controller

Info

Publication number
JPS54108126A
JPS54108126A JP1565278A JP1565278A JPS54108126A JP S54108126 A JPS54108126 A JP S54108126A JP 1565278 A JP1565278 A JP 1565278A JP 1565278 A JP1565278 A JP 1565278A JP S54108126 A JPS54108126 A JP S54108126A
Authority
JP
Japan
Prior art keywords
circuit
switch
fuel ratio
output
constitution
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
JP1565278A
Other languages
Japanese (ja)
Inventor
Takeshi Atago
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.)
Automob Antipollut & Saf Res Center
Automobile Appliance Anti Pollution and Safety Research Center
Original Assignee
Automob Antipollut & Saf Res Center
Automobile Appliance Anti Pollution and Safety Research Center
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 Automob Antipollut & Saf Res Center, Automobile Appliance Anti Pollution and Safety Research Center filed Critical Automob Antipollut & Saf Res Center
Priority to JP1565278A priority Critical patent/JPS54108126A/en
Publication of JPS54108126A publication Critical patent/JPS54108126A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To stably run an engine both at the starting and under a high load, by specifying the constitution of a modulator circuit.
CONSTITUTION: An OR unit 24, which operates a timer 26 through comparators 22, 23 connected to a reference voltage generator 21, is connected to a comparator 11. A switch 25 is connected to a reference wave generator circuit 30 and an output control circuit 10 for a power transistor 17 through an OR unit 27 and a switch 29. Thereby, the modulator circuit is formed. When the output signal 15 from an O2 sensor 15 has remained higher or lower than a slice level signal 16 over a predetermined time, the switch 29 is turned on and the output control circuit 10 is operated by the output of the reference wave generator circuit 30. Thereby, a solenoid 14 is energized to maintain a slow and a main actuators in central position. Thus, the purpose is attained.
COPYRIGHT: (C)1979,JPO&Japio
JP1565278A 1978-02-13 1978-02-13 Air fuel ratio controller Pending JPS54108126A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1565278A JPS54108126A (en) 1978-02-13 1978-02-13 Air fuel ratio controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1565278A JPS54108126A (en) 1978-02-13 1978-02-13 Air fuel ratio controller

Publications (1)

Publication Number Publication Date
JPS54108126A true JPS54108126A (en) 1979-08-24

Family

ID=11894642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1565278A Pending JPS54108126A (en) 1978-02-13 1978-02-13 Air fuel ratio controller

Country Status (1)

Country Link
JP (1) JPS54108126A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5672228A (en) * 1979-11-14 1981-06-16 Toyota Motor Corp Electronic controlling device for air fuel ratio of engine
JPS57124054A (en) * 1981-01-26 1982-08-02 Toyota Motor Corp Air-fuel ratio control device for internal combustion engine
JPS6035148A (en) * 1983-08-05 1985-02-22 Nippon Denso Co Ltd Air-fuel ratio control device
JPS62131941A (en) * 1985-12-05 1987-06-15 Mazda Motor Corp Air-fuel ratio control device for engine
US5511526A (en) * 1995-06-30 1996-04-30 Ford Motor Company Engine air/fuel control with adaptive learning
US5515826A (en) * 1995-06-30 1996-05-14 Ford Motor Company Engine air/fuel control system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5672228A (en) * 1979-11-14 1981-06-16 Toyota Motor Corp Electronic controlling device for air fuel ratio of engine
JPS57124054A (en) * 1981-01-26 1982-08-02 Toyota Motor Corp Air-fuel ratio control device for internal combustion engine
JPS6035148A (en) * 1983-08-05 1985-02-22 Nippon Denso Co Ltd Air-fuel ratio control device
JPS62131941A (en) * 1985-12-05 1987-06-15 Mazda Motor Corp Air-fuel ratio control device for engine
US5511526A (en) * 1995-06-30 1996-04-30 Ford Motor Company Engine air/fuel control with adaptive learning
US5515826A (en) * 1995-06-30 1996-05-14 Ford Motor Company Engine air/fuel control system

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