JPS5498422A - Apparatus for number of fuel feeding cylinders - Google Patents
Apparatus for number of fuel feeding cylindersInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6153680U (en) * | 1984-09-06 | 1986-04-11 |
-
1978
- 1978-01-19 JP JP459278A patent/JPS5498422A/en active Granted
Cited By (1)
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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