JPS55161934A - Controller for fuel-air ratio - Google Patents

Controller for fuel-air ratio

Info

Publication number
JPS55161934A
JPS55161934A JP7018479A JP7018479A JPS55161934A JP S55161934 A JPS55161934 A JP S55161934A JP 7018479 A JP7018479 A JP 7018479A JP 7018479 A JP7018479 A JP 7018479A JP S55161934 A JPS55161934 A JP S55161934A
Authority
JP
Japan
Prior art keywords
fuel
air
carburetor
air ratio
control 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
JP7018479A
Other languages
Japanese (ja)
Other versions
JPS6254973B2 (en
Inventor
Yukihide Niimi
Seietsu Yoshida
Yoshihiko Kondo
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.)
Denso Corp
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
NipponDenso 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 Toyota Motor Corp, NipponDenso Co Ltd filed Critical Toyota Motor Corp
Priority to JP7018479A priority Critical patent/JPS55161934A/en
Publication of JPS55161934A publication Critical patent/JPS55161934A/en
Publication of JPS6254973B2 publication Critical patent/JPS6254973B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To correct the fluctuations of the base fuel-air ratio of a carburetor and to maintain a specified fuel-air ratio by controlling either a correcting fuel volume for a carburetor or a correcting air volume which bypasses the carburetor responding to output signals from a time lag control circuit.
CONSTITUTION: A secondary air supply unit 15, which supplies secondary air to an exhaust manifold 13 installed in an engine 10, is organized to control fuel-air ratios by ON-OFF electrical signals from a control unit 30. A base fuel-air ratio is set to the rich side by a carburetor 11. The control unit 30 consists of a comparator 31, which determines whether the fuel-air ratio is lean or rich by receiving output signals from a fuel-air sensor 20, and an integrating circuit 32, which monitors fuel-air conditions, and a time lag control circuit 33, which receives outputs from the two circuits 31 and 32, and a fuel-air ratio control circuit 34. The secondary air supply unit 15 is so controlled that the fuel-air ratios or excessive air ratios may be adjusted to the specified values responding to output signals from the time lag control circuit 33.
COPYRIGHT: (C)1980,JPO&Japio
JP7018479A 1979-06-05 1979-06-05 Controller for fuel-air ratio Granted JPS55161934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7018479A JPS55161934A (en) 1979-06-05 1979-06-05 Controller for fuel-air ratio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7018479A JPS55161934A (en) 1979-06-05 1979-06-05 Controller for fuel-air ratio

Publications (2)

Publication Number Publication Date
JPS55161934A true JPS55161934A (en) 1980-12-16
JPS6254973B2 JPS6254973B2 (en) 1987-11-17

Family

ID=13424177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7018479A Granted JPS55161934A (en) 1979-06-05 1979-06-05 Controller for fuel-air ratio

Country Status (1)

Country Link
JP (1) JPS55161934A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6287069U (en) * 1985-11-21 1987-06-03
JPS6432377U (en) * 1987-08-24 1989-02-28
JPS6435879U (en) * 1987-09-30 1989-03-03

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51146638A (en) * 1975-06-10 1976-12-16 Nippon Denso Co Ltd Air-fuel ratio recycling type fuel controlling system
JPS5248738A (en) * 1975-10-13 1977-04-19 Bosch Gmbh Robert Method and apparatus for control of proportion of mass of fuel air mixture supplied to internal combustion engine
JPS5499829A (en) * 1978-01-23 1979-08-07 Nissan Motor Co Ltd Air fuel ratio controller
JPS54162023A (en) * 1978-06-13 1979-12-22 Nippon Soken Inc Air fuel ratio controller

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51146638A (en) * 1975-06-10 1976-12-16 Nippon Denso Co Ltd Air-fuel ratio recycling type fuel controlling system
JPS5248738A (en) * 1975-10-13 1977-04-19 Bosch Gmbh Robert Method and apparatus for control of proportion of mass of fuel air mixture supplied to internal combustion engine
JPS5499829A (en) * 1978-01-23 1979-08-07 Nissan Motor Co Ltd Air fuel ratio controller
JPS54162023A (en) * 1978-06-13 1979-12-22 Nippon Soken Inc Air fuel ratio controller

Also Published As

Publication number Publication date
JPS6254973B2 (en) 1987-11-17

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