JPS5498422A - Apparatus for number of fuel feeding cylinders - Google Patents

Apparatus for number of fuel feeding cylinders

Info

Publication number
JPS5498422A
JPS5498422A JP459278A JP459278A JPS5498422A JP S5498422 A JPS5498422 A JP S5498422A JP 459278 A JP459278 A JP 459278A JP 459278 A JP459278 A JP 459278A JP S5498422 A JPS5498422 A JP S5498422A
Authority
JP
Japan
Prior art keywords
revolutions
pulse width
output
area
load
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
JP459278A
Other languages
Japanese (ja)
Other versions
JPS5654454B2 (en
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 JP459278A priority Critical patent/JPS5498422A/en
Publication of JPS5498422A publication Critical patent/JPS5498422A/en
Publication of JPS5654454B2 publication Critical patent/JPS5654454B2/ja
Granted 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 check deterioration in the exhaust performance through full cylinder operation which is able to continue until the cut valve is closed during the shift from the full cylinder to partial cylinder when a command for switching the number of cylinders is given according to the engine load and revolutions.
CONSTITUTION: Three cylinder operation is made in the following areas: in the light load area where the load, namely, the pulse width of fuel injection is less than PL with engine revolutions exceeding a given low revolutions N0 or in a area C where the load exceeds a given pulse width PH or the engine revolutions are less than N0. In the area B between the pulse width PL and PH, a fuel feed cylinder control is performed in a control pattern of maintaining the preceding condition. With such as arrangement, a light load discrimination circuit 7 sends an output 1 with a pulse width below a set value PL while revolutions discrination circuit 9 sends an output 1 with revolutions exceeding the set value N0. An AND circuit 10 sends an output 1 in the area A and otherwise, an output 0.
COPYRIGHT: (C)1979,JPO&Japio
JP459278A 1978-01-19 1978-01-19 Apparatus for number of fuel feeding cylinders Granted JPS5498422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP459278A JPS5498422A (en) 1978-01-19 1978-01-19 Apparatus for number of fuel feeding cylinders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP459278A JPS5498422A (en) 1978-01-19 1978-01-19 Apparatus for number of fuel feeding cylinders

Publications (2)

Publication Number Publication Date
JPS5498422A true JPS5498422A (en) 1979-08-03
JPS5654454B2 JPS5654454B2 (en) 1981-12-25

Family

ID=11588303

Family Applications (1)

Application Number Title Priority Date Filing Date
JP459278A Granted JPS5498422A (en) 1978-01-19 1978-01-19 Apparatus for number of fuel feeding cylinders

Country Status (1)

Country Link
JP (1) JPS5498422A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01134039A (en) * 1988-10-19 1989-05-26 Nippon Denso Co Ltd Controller for internal combustion engine with supercharger

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6153680U (en) * 1984-09-06 1986-04-11

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01134039A (en) * 1988-10-19 1989-05-26 Nippon Denso Co Ltd Controller for internal combustion engine with supercharger

Also Published As

Publication number Publication date
JPS5654454B2 (en) 1981-12-25

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