JPS57181936A - Fuel injection control method for internal combustion engine - Google Patents
Fuel injection control method for internal combustion engineInfo
- Publication number
- JPS57181936A JPS57181936A JP6404481A JP6404481A JPS57181936A JP S57181936 A JPS57181936 A JP S57181936A JP 6404481 A JP6404481 A JP 6404481A JP 6404481 A JP6404481 A JP 6404481A JP S57181936 A JPS57181936 A JP S57181936A
- Authority
- JP
- Japan
- Prior art keywords
- cylinders
- fuel
- cylinder group
- injected
- combustion engine
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/008—Controlling each cylinder individually
- F02D41/0087—Selective cylinder activation, i.e. partial cylinder operation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE:To eliminate the internal EGR, stabilize the combustion, and improve the specific fuel consumption by dividing all cylinders into odd cylinder groups each of which having the same number of cylinders and by stopping the fuel injection into the following cylinder group in succession to the preceding cylinder group. CONSTITUTION:All cylinders of an internal combustion engine are divided into odd cylinder groups each of which having the same number of cylinders, and the fuel is injected into individual cylinder groups every time the engine revolves for a predetermined crank angle. Whether the fuel is injected or not into individual cylinder groups is controlled by whether load signals are sent out or not from the CPU 20 through control lines 63, 68, 74. If the injection is stopped into the following cylinder group after the fuel has been injected into the preceding cylinder group, the explosion would not occur for the same cylinder group in the preceding explosion stroke, resulting in no internal EGR generated. Thereby, the combustion is stabilized, the running characteristics is extensively improved, and the specific fuel consumption is also improved remarkably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6404481A JPS57181936A (en) | 1981-04-30 | 1981-04-30 | Fuel injection control method for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6404481A JPS57181936A (en) | 1981-04-30 | 1981-04-30 | Fuel injection control method for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57181936A true JPS57181936A (en) | 1982-11-09 |
Family
ID=13246707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6404481A Pending JPS57181936A (en) | 1981-04-30 | 1981-04-30 | Fuel injection control method for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57181936A (en) |
-
1981
- 1981-04-30 JP JP6404481A patent/JPS57181936A/en active Pending
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