JPS5549543A - Fuel shut-off device - Google Patents

Fuel shut-off device

Info

Publication number
JPS5549543A
JPS5549543A JP12228678A JP12228678A JPS5549543A JP S5549543 A JPS5549543 A JP S5549543A JP 12228678 A JP12228678 A JP 12228678A JP 12228678 A JP12228678 A JP 12228678A JP S5549543 A JPS5549543 A JP S5549543A
Authority
JP
Japan
Prior art keywords
hunting
comparators
fuel
output
fuel injection
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
JP12228678A
Other languages
Japanese (ja)
Inventor
Haruhiko Iizuka
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP12228678A priority Critical patent/JPS5549543A/en
Publication of JPS5549543A publication Critical patent/JPS5549543A/en
Pending legal-status Critical Current

Links

Landscapes

  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE: To prevent the hunting by releasing the function of fuel shut-off temporarily when the hunting is caused in full closing the throttle valve due to an abnormal increase of idling of the engine in the mechanism wherein the fuel cost is economized by stopping the fuel injection when the speed is decelerated.
CONSTITUTION: Output as set values A, B, which vary with water temperature, is fed to the comparators 8, 9 through the function generator 6, 7, and output of the fuel injection control circuit 2 is also fed to said comparators 8, 9 through the switch 4, which is closed when the idle switch 3 is "on", and the F-V converter 5. When the Q-output of FF10, which accepts the outputs of comparators 8, 9, is "1", that is, when the number of rotation is greater than a set value during a reducing operation, the switch 13 is turned off to stop the actions of all the fuel injection valves 22, 23, 26, 27, and a means A that releases said fuel shut-off function only for a fixed time when the hunting is detected is provided.
COPYRIGHT: (C)1980,JPO&Japio
JP12228678A 1978-10-04 1978-10-04 Fuel shut-off device Pending JPS5549543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12228678A JPS5549543A (en) 1978-10-04 1978-10-04 Fuel shut-off device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12228678A JPS5549543A (en) 1978-10-04 1978-10-04 Fuel shut-off device

Publications (1)

Publication Number Publication Date
JPS5549543A true JPS5549543A (en) 1980-04-10

Family

ID=14832188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12228678A Pending JPS5549543A (en) 1978-10-04 1978-10-04 Fuel shut-off device

Country Status (1)

Country Link
JP (1) JPS5549543A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7117853B2 (en) * 2004-08-03 2006-10-10 Denso Corporation Fuel injection controller of engine
JP2015169095A (en) * 2014-03-05 2015-09-28 トヨタ自動車株式会社 Fuel supply control device for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7117853B2 (en) * 2004-08-03 2006-10-10 Denso Corporation Fuel injection controller of engine
JP2015169095A (en) * 2014-03-05 2015-09-28 トヨタ自動車株式会社 Fuel supply control device for vehicle

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