JPS56110537A - Air-fuel ratio controller - Google Patents

Air-fuel ratio controller

Info

Publication number
JPS56110537A
JPS56110537A JP1239680A JP1239680A JPS56110537A JP S56110537 A JPS56110537 A JP S56110537A JP 1239680 A JP1239680 A JP 1239680A JP 1239680 A JP1239680 A JP 1239680A JP S56110537 A JPS56110537 A JP S56110537A
Authority
JP
Japan
Prior art keywords
control
engine
vcset
nset
warming
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
JP1239680A
Other languages
Japanese (ja)
Inventor
Takeshi Atago
Toshio Manaka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1239680A priority Critical patent/JPS56110537A/en
Publication of JPS56110537A publication Critical patent/JPS56110537A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

PURPOSE: To prevent the state of exhaust gas from deteriorating and to warn up an engine stably by a method wherein in warming up an engine, also, under an A/F (air-fuel) ratio control through the increment system of a carburettor, large pulsations are not allowed to appear to the A/F control.
CONSTITUTION: In an idle warming-up, a desired number of rotation Nset and a desired suction negative pressure Vcset are determined in proportion to an engine temprature TW, and a throttle actuator 7 and a fuel solenoid 5 are controlled so as to take these Nset, Vcset. And, in warming-up operation, control in proportion to TW under the number of rotation N is stopped by the tansfer to an acceleration pedal operation and control to a fuel solenoid 5 is executed by the use of the data DF calcuiated on the basis of the number of rotation N and the suction negative pressure Vc by sensors 10, 8. The desired values Nset and Vcset are data induced from the engine temperature and cause no pulsations. Thus, the A/F control characteristics scarcely contain pulsations.
COPYRIGHT: (C)1981,JPO&Japio
JP1239680A 1980-02-06 1980-02-06 Air-fuel ratio controller Pending JPS56110537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1239680A JPS56110537A (en) 1980-02-06 1980-02-06 Air-fuel ratio controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1239680A JPS56110537A (en) 1980-02-06 1980-02-06 Air-fuel ratio controller

Publications (1)

Publication Number Publication Date
JPS56110537A true JPS56110537A (en) 1981-09-01

Family

ID=11804098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1239680A Pending JPS56110537A (en) 1980-02-06 1980-02-06 Air-fuel ratio controller

Country Status (1)

Country Link
JP (1) JPS56110537A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS627956A (en) * 1985-07-04 1987-01-14 Mazda Motor Corp Engine exhaust gas purifier
JPH056813U (en) * 1991-07-11 1993-01-29 ミツミ電機株式会社 Fixed inductor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS627956A (en) * 1985-07-04 1987-01-14 Mazda Motor Corp Engine exhaust gas purifier
JPH056813U (en) * 1991-07-11 1993-01-29 ミツミ電機株式会社 Fixed inductor

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