JPS5732034A - Air/fuel ratio control device of engine - Google Patents

Air/fuel ratio control device of engine

Info

Publication number
JPS5732034A
JPS5732034A JP10554080A JP10554080A JPS5732034A JP S5732034 A JPS5732034 A JP S5732034A JP 10554080 A JP10554080 A JP 10554080A JP 10554080 A JP10554080 A JP 10554080A JP S5732034 A JPS5732034 A JP S5732034A
Authority
JP
Japan
Prior art keywords
signal
air
value
fuel ratio
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
JP10554080A
Other languages
Japanese (ja)
Other versions
JPS6151657B2 (en
Inventor
Yoshinori Motoiden
Misao Fujimoto
Tadashi Kaneko
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 JP10554080A priority Critical patent/JPS5732034A/en
Publication of JPS5732034A publication Critical patent/JPS5732034A/en
Publication of JPS6151657B2 publication Critical patent/JPS6151657B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE: To prevent the air/fuel ratio from changing to the lean side by providing a correction device to increase the fuel when the opening of carburettor throttle valve exceeds the preset value and it is sensed by an idling revolutions control device which is to hold the idling revolutions constant.
CONSTITUTION: When the number of revolution of an engine becomes lower than the set value, the signal from a rotation sensor 18 will generate a pulse signal from a control circuit 19. An actuator 17 is put into operation by this signal to control the duty ratio. On the other hand, the output (d) of a circuit L1 to integrate the signal from the rotation sensor 18 in control circuit 19 becomes a value corresponding to the opening of a throttle valve 3g. Output (f) is given by the circuit R1 as reference signal for sensing if this value has attained a certain specified value. When the order of magnitude between two signals (d) and (f) is inverted, the correction signal (h) will permit the actuator 15 to shut an air bleed 10 to increase fuel supply from a float chamber 3a. Thus the air/fuel ratio of the mixture can be concentrated.
COPYRIGHT: (C)1982,JPO&Japio
JP10554080A 1980-07-30 1980-07-30 Air/fuel ratio control device of engine Granted JPS5732034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10554080A JPS5732034A (en) 1980-07-30 1980-07-30 Air/fuel ratio control device of engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10554080A JPS5732034A (en) 1980-07-30 1980-07-30 Air/fuel ratio control device of engine

Publications (2)

Publication Number Publication Date
JPS5732034A true JPS5732034A (en) 1982-02-20
JPS6151657B2 JPS6151657B2 (en) 1986-11-10

Family

ID=14410415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10554080A Granted JPS5732034A (en) 1980-07-30 1980-07-30 Air/fuel ratio control device of engine

Country Status (1)

Country Link
JP (1) JPS5732034A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331139U (en) * 1976-08-24 1978-03-17

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5129464A (en) * 1974-08-30 1976-03-12 Microbial Chem Res Found HISUCHIJINDATSUTANSANKOSOSOGAIBUTSUSHITSU NO SEIZOHO

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5331139U (en) * 1976-08-24 1978-03-17

Also Published As

Publication number Publication date
JPS6151657B2 (en) 1986-11-10

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