JPS5660813A - Control method of air-fuel ratio - Google Patents

Control method of air-fuel ratio

Info

Publication number
JPS5660813A
JPS5660813A JP13548079A JP13548079A JPS5660813A JP S5660813 A JPS5660813 A JP S5660813A JP 13548079 A JP13548079 A JP 13548079A JP 13548079 A JP13548079 A JP 13548079A JP S5660813 A JPS5660813 A JP S5660813A
Authority
JP
Japan
Prior art keywords
air
fuel ratio
solenoid valve
proportional solenoid
engine
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
JP13548079A
Other languages
Japanese (ja)
Other versions
JPS6343563B2 (en
Inventor
Seietsu Yoshida
Hironori Bessho
Yoshiki Maruchi
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 JP13548079A priority Critical patent/JPS5660813A/en
Publication of JPS5660813A publication Critical patent/JPS5660813A/en
Publication of JPS6343563B2 publication Critical patent/JPS6343563B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To change the opening degree of operational start of a proportional solenoid valve in accordance with a state of load in an engine and improve the control response of its air-fuel ratio, by providing an air-fuel ratio sensor and the proportional solenoid valve in a secondary air feeding exhaust gas cleaner for the internal combustion engine.
CONSTITUTION: In the upstream of a three-component simultaneously processing catalyzer 6 in the exhaust line of an internal combustion engine 1, an air-fuel ratio sensor 16 is provided. While a proportional solenoid valve 9 that controls the quantity of secondary air is provided. A controller 17, in accordance with signals from the air-fuel ratio sensor 16 and an intake negative pressure sensor 18 that detects a state of load of the engine, controls an opening degree of the proportional solenoid valve 9 to feed-back control the quantity of the secondary air. In this way, the responsibility of control for the air-fuel ratio can be improved.
COPYRIGHT: (C)1981,JPO&Japio
JP13548079A 1979-10-19 1979-10-19 Control method of air-fuel ratio Granted JPS5660813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13548079A JPS5660813A (en) 1979-10-19 1979-10-19 Control method of air-fuel ratio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13548079A JPS5660813A (en) 1979-10-19 1979-10-19 Control method of air-fuel ratio

Publications (2)

Publication Number Publication Date
JPS5660813A true JPS5660813A (en) 1981-05-26
JPS6343563B2 JPS6343563B2 (en) 1988-08-31

Family

ID=15152694

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13548079A Granted JPS5660813A (en) 1979-10-19 1979-10-19 Control method of air-fuel ratio

Country Status (1)

Country Link
JP (1) JPS5660813A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425235A (en) * 1992-07-21 1995-06-20 Mitsubishi Denki Kabushiki Kaisha Apparatus for purifying engine exhaust gas
US5493858A (en) * 1992-06-23 1996-02-27 Mitsubishi Denki Kabushiki Kaisha Controlling apparatus for introduction air into exhaust pipe of internal combustion engine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52154918A (en) * 1976-06-18 1977-12-23 Toyota Motor Corp Secondary air feeding amount control device for internal combustion engine
JPS5349617A (en) * 1976-10-16 1978-05-06 Toyota Motor Corp Secondary air supplying amount controller

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52154918A (en) * 1976-06-18 1977-12-23 Toyota Motor Corp Secondary air feeding amount control device for internal combustion engine
JPS5349617A (en) * 1976-10-16 1978-05-06 Toyota Motor Corp Secondary air supplying amount controller

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493858A (en) * 1992-06-23 1996-02-27 Mitsubishi Denki Kabushiki Kaisha Controlling apparatus for introduction air into exhaust pipe of internal combustion engine
US5566547A (en) * 1992-06-23 1996-10-22 Mitsubishi Denki Kabushiki Kaisha Controlling apparatus for introducing air into an exhaust pipe of an internal combustion engine
US5724810A (en) * 1992-06-23 1998-03-10 Mitsubishi Denki Kabushiki Kaisha Controlling apparatus for introduction air into an exhaust pipe of an internal combustion engine
US5425235A (en) * 1992-07-21 1995-06-20 Mitsubishi Denki Kabushiki Kaisha Apparatus for purifying engine exhaust gas
US5916131A (en) * 1992-07-21 1999-06-29 Mitsubishi Denki Kabushiki Kaisha Apparatus for purifying engine exhaust gas

Also Published As

Publication number Publication date
JPS6343563B2 (en) 1988-08-31

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