JPS6424139A - Air-fuel ratio control device for internal combustion engine - Google Patents
Air-fuel ratio control device for internal combustion engineInfo
- Publication number
- JPS6424139A JPS6424139A JP17799587A JP17799587A JPS6424139A JP S6424139 A JPS6424139 A JP S6424139A JP 17799587 A JP17799587 A JP 17799587A JP 17799587 A JP17799587 A JP 17799587A JP S6424139 A JPS6424139 A JP S6424139A
- Authority
- JP
- Japan
- Prior art keywords
- study
- value
- amount
- transient
- calculated
- 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
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
PURPOSE:To both promote the improvement of drivability from transient operation to steady operation and prevent a decrease of study accuracy by controlling a study so as to be stopped in case of the absolute value of a transient correction amount in a predetermined value or more, when a study condition is established. CONSTITUTION:A study value is stored in a study value memory means 3 in every divided area with a load of an engine and its speed N serving as the parameter, and a study value reading means 4, reading the study value of an area, to which an operative condition in that time belongs, from the study value memory means 3, is provided. When the operation is decided to be in an air-fuel ratio feedback control region by a feedback control region decision means 5, a feedback amount is calculated by a feedback amount arithmetic means 7 being based on an air-fuel ratio deviation, and from these feedback amount and study value, the final fuel injection amount is calculated in an output fuel injection amount arithmetic means 8 by correcting the basic injection amount calculated in a basic fuel amount arithmetic means 2 being based on the operative condition. When the transient time is decided by a transient decision means 12, the basic injection amount is corrected in a correcting means 14 by a transient correction amount calculated by an arithmetic means 13, and when this transient correction amount is decided to be in a predetermined value or more by a decision means 15, the study is stopped by a study stopping means 16.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17799587A JPS6424139A (en) | 1987-07-16 | 1987-07-16 | Air-fuel ratio control device for internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17799587A JPS6424139A (en) | 1987-07-16 | 1987-07-16 | Air-fuel ratio control device for internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6424139A true JPS6424139A (en) | 1989-01-26 |
Family
ID=16040701
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17799587A Pending JPS6424139A (en) | 1987-07-16 | 1987-07-16 | Air-fuel ratio control device for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6424139A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010038910A (en) * | 1999-10-28 | 2001-05-15 | 류정열 | control method of quantity of fuel for vehicle |
JP2009121348A (en) * | 2007-11-15 | 2009-06-04 | Nikki Co Ltd | Fuel injection control method of engine and fuel injection control device for the same |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60173335A (en) * | 1984-02-20 | 1985-09-06 | Nissan Motor Co Ltd | Air-fuel control device |
JPS62101855A (en) * | 1985-10-29 | 1987-05-12 | Nissan Motor Co Ltd | Fuel-injection control device for internal combustion engine |
-
1987
- 1987-07-16 JP JP17799587A patent/JPS6424139A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60173335A (en) * | 1984-02-20 | 1985-09-06 | Nissan Motor Co Ltd | Air-fuel control device |
JPS62101855A (en) * | 1985-10-29 | 1987-05-12 | Nissan Motor Co Ltd | Fuel-injection control device for internal combustion engine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010038910A (en) * | 1999-10-28 | 2001-05-15 | 류정열 | control method of quantity of fuel for vehicle |
JP2009121348A (en) * | 2007-11-15 | 2009-06-04 | Nikki Co Ltd | Fuel injection control method of engine and fuel injection control device for the same |
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