JPS569635A - Feedback control of air-fuel ratio - Google Patents

Feedback control of air-fuel ratio

Info

Publication number
JPS569635A
JPS569635A JP7227980A JP7227980A JPS569635A JP S569635 A JPS569635 A JP S569635A JP 7227980 A JP7227980 A JP 7227980A JP 7227980 A JP7227980 A JP 7227980A JP S569635 A JPS569635 A JP S569635A
Authority
JP
Japan
Prior art keywords
engine
circuit
integration
air
feedback control
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
JP7227980A
Other languages
Japanese (ja)
Inventor
Kazuo Kajita
Toshio 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
Original Assignee
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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP7227980A priority Critical patent/JPS569635A/en
Publication of JPS569635A publication Critical patent/JPS569635A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To fasten a feedback control of the air-fuel ratio of an engine and thus stabilize its performance by increasing the processing rate of an integration circuit when the load condition of the engine changes from an unloaded state to a loaded one.
CONSTITUTION: An output signal of an oxygen density sensor 1 disposed in an engine exhaust system is discriminated by a discrimination circuit 2 and input to an integration circuit 3. The output signal 3b of the circuit 3 is further fed to an electronically controlled fuel injection device 5 to control fuel injected out of a fuel injection vale 6. To the integration circuit 3 is connected a change-over switch 4 adapted to switch the integration constant from one to another in accordance with the unloaded or loaded state of the engine and rectify the integration constant output toward the injection device 5 according to the load.
COPYRIGHT: (C)1981,JPO&Japio
JP7227980A 1980-05-29 1980-05-29 Feedback control of air-fuel ratio Pending JPS569635A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7227980A JPS569635A (en) 1980-05-29 1980-05-29 Feedback control of air-fuel ratio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7227980A JPS569635A (en) 1980-05-29 1980-05-29 Feedback control of air-fuel ratio

Publications (1)

Publication Number Publication Date
JPS569635A true JPS569635A (en) 1981-01-31

Family

ID=13484680

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7227980A Pending JPS569635A (en) 1980-05-29 1980-05-29 Feedback control of air-fuel ratio

Country Status (1)

Country Link
JP (1) JPS569635A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60216044A (en) * 1984-04-12 1985-10-29 Nissan Motor Co Ltd Air-fuel ratio controller
JPS60224946A (en) * 1984-04-24 1985-11-09 Mazda Motor Corp Air/fuel ratio controller for engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536818A (en) * 1978-09-06 1980-03-14 Fujitsu Fanuc Ltd Display device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5536818A (en) * 1978-09-06 1980-03-14 Fujitsu Fanuc Ltd Display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60216044A (en) * 1984-04-12 1985-10-29 Nissan Motor Co Ltd Air-fuel ratio controller
JPS60224946A (en) * 1984-04-24 1985-11-09 Mazda Motor Corp Air/fuel ratio controller for engine

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