JPS632843U - - Google Patents
Info
- Publication number
- JPS632843U JPS632843U JP9576386U JP9576386U JPS632843U JP S632843 U JPS632843 U JP S632843U JP 9576386 U JP9576386 U JP 9576386U JP 9576386 U JP9576386 U JP 9576386U JP S632843 U JPS632843 U JP S632843U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- fuel
- control
- operating state
- 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
- 239000000446 fuel Substances 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の基本概念図、第２〜５図は本
考案の一実施例を示す図であり、第２図はその全
体構成図、第３図はその空燃比制御のプログラム
を示すフローチヤート、第４図はそのフイードフ
オワード制御のフラグを設定するサブルーチンを
示すフローチヤート、第５図はその空燃比制御の
動作を示すタイミングチヤート、第６図は従来の
空燃比制御装置における空燃比制御のプログラム
を示すフローチヤートである。
１……エンジン、４……インジエクタ（操作手
段）、１１……運転状態検出手段、１４……空燃
比検出手段、１５……コントロールユニツト（比
較手段、制御手段）。
Fig. 1 is a basic conceptual diagram of the present invention, Figs. 2 to 5 are diagrams showing an embodiment of the invention, Fig. 2 is its overall configuration diagram, and Fig. 3 is its air-fuel ratio control program. FIG. 4 is a flowchart showing a subroutine for setting flags for the feedforward control, FIG. 5 is a timing chart showing the operation of the air-fuel ratio control, and FIG. 6 is a flowchart showing the subroutine for setting the flag for the feed forward control. 3 is a flowchart showing an air-fuel ratio control program. DESCRIPTION OF SYMBOLS 1... Engine, 4... Injector (operation means), 11... Operating state detection means, 14... Air-fuel ratio detection means, 15... Control unit (comparison means, control means).
Claims (1)
空燃比を検出する空燃比検出手段と、 (b) エンジンの運転状態を検出する運転状態検
出手段と、 (c) 空燃比検出手段の出力を目標空燃比に対応
する所定基準値と比較して現空燃比と目標値との
偏差を出力する比較手段と、 (d) 比較手段の偏差出力に基づいて目標空燃比
となるように吸入空気あるいは燃料の供給量を制
御する空燃比補正を行うとともに、エンジンが所
定の運転状態にあるとき特定気筒の空燃比補正に
ついては比較手段の偏差出力が反転する以前にそ
の補正方向を反転させる制御手段と、 (e) 制御手段からの信号に基づいて吸入空気あ
るいは燃料の供給量を操作する操作手段と、 を備えたことを特徴とする内燃機関の空燃比制御
装置。[Scope of Claim for Utility Model Registration] (a) Air-fuel ratio detection means for detecting the air-fuel ratio of the intake air-fuel mixture based on the oxygen concentration in the exhaust gas; (b) Operating state detection means for detecting the operating state of the engine; (c) comparison means for comparing the output of the air-fuel ratio detection means with a predetermined reference value corresponding to the target air-fuel ratio and outputting a deviation between the current air-fuel ratio and the target value; (d) based on the deviation output of the comparison means; In addition to performing air-fuel ratio correction to control the intake air or fuel supply amount to achieve the target air-fuel ratio, when the engine is in a predetermined operating state, air-fuel ratio correction for a specific cylinder is performed before the deviation output of the comparison means is reversed. An air-fuel ratio control for an internal combustion engine, comprising: a control means for reversing the correction direction; and (e) an operation means for manipulating the amount of intake air or fuel supplied based on a signal from the control means. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9576386U JPS632843U (en) | 1986-06-23 | 1986-06-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9576386U JPS632843U (en) | 1986-06-23 | 1986-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS632843U true JPS632843U (en) | 1988-01-09 |
Family
ID=30960717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9576386U Pending JPS632843U (en) | 1986-06-23 | 1986-06-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS632843U (en) |
-
1986
- 1986-06-23 JP JP9576386U patent/JPS632843U/ja active Pending
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