JPS5672240A - Air-fuel ratio controller for engine - Google Patents

Air-fuel ratio controller for engine

Info

Publication number
JPS5672240A
JPS5672240A JP14802179A JP14802179A JPS5672240A JP S5672240 A JPS5672240 A JP S5672240A JP 14802179 A JP14802179 A JP 14802179A JP 14802179 A JP14802179 A JP 14802179A JP S5672240 A JPS5672240 A JP S5672240A
Authority
JP
Japan
Prior art keywords
air
actuator
bypath
engine
circuit
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
JP14802179A
Other languages
Japanese (ja)
Other versions
JPS6056901B2 (en
Inventor
Tokuichi Matsumoto
Kazumasa Nomura
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.)
Mazda Motor Corp
Original Assignee
Mazda Motor Corp
Toyo Kogyo 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 Mazda Motor Corp, Toyo Kogyo Co Ltd filed Critical Mazda Motor Corp
Priority to JP14802179A priority Critical patent/JPS6056901B2/en
Publication of JPS5672240A publication Critical patent/JPS5672240A/en
Publication of JPS6056901B2 publication Critical patent/JPS6056901B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)

Abstract

PURPOSE: To prevent mixture from being overrich by a method wherein a controller slow auxiliary air bleed and an air bypath are connected on a suction system and bypath air is increased when the maximum value which can be controlled by the air bleed is kept for a given time.
CONSTITUTION: The slow auxiliary air bleed 10 having the 2nd actuator 15 at its extremity is connected with the slow fuel passage 3f of a carburetor 3. The actuator 15 is controlled by the 2nd circuit 21 receiving signals of an exhaust sensor 20 on an exhaust passage 4. An air bypath 16 is connected with a suction passage 2 and on the extreme part is arranged the 1st actuator 17 receiving signals of a sensor 18 detecting the number of revolution of the engine 1. When the decreasing flow rate of fuel in the 2nd actuator 15 reaches the maximum value and is kept for a given time, this rate is decided to be overrich and a bypass flow is increased through a correction circuit 22, the 1st circuit 19.
COPYRIGHT: (C)1981,JPO&Japio
JP14802179A 1979-11-14 1979-11-14 Engine air-fuel ratio control device Expired JPS6056901B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14802179A JPS6056901B2 (en) 1979-11-14 1979-11-14 Engine air-fuel ratio control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14802179A JPS6056901B2 (en) 1979-11-14 1979-11-14 Engine air-fuel ratio control device

Publications (2)

Publication Number Publication Date
JPS5672240A true JPS5672240A (en) 1981-06-16
JPS6056901B2 JPS6056901B2 (en) 1985-12-12

Family

ID=15443325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14802179A Expired JPS6056901B2 (en) 1979-11-14 1979-11-14 Engine air-fuel ratio control device

Country Status (1)

Country Link
JP (1) JPS6056901B2 (en)

Also Published As

Publication number Publication date
JPS6056901B2 (en) 1985-12-12

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