JPS6342846U - - Google Patents
Info
- Publication number
- JPS6342846U JPS6342846U JP13632686U JP13632686U JPS6342846U JP S6342846 U JPS6342846 U JP S6342846U JP 13632686 U JP13632686 U JP 13632686U JP 13632686 U JP13632686 U JP 13632686U JP S6342846 U JPS6342846 U JP S6342846U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel
- fuel ratio
- detection means
- output
- 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 14
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 230000005856 abnormality Effects 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 3
- 239000007789 gas Substances 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２〜４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図はその酸素センサ出力と空燃比
補正係数の関係を示すタイミングチヤート、第４
図はそのインジエクタの異常判別を行うプログラ
ムを示すフローチヤートである。
１……エンジン、４……燃料噴射弁（インジエ
クタ）、１２……酸素センサ、１３……運転状態
検出手段、１４……コントロールユニツト。
Figure 1 is a basic conceptual diagram of the present invention, Figures 2 to 4 are diagrams showing one embodiment of the present invention, Figure 2 is its overall configuration diagram, and Figure 3 is its oxygen sensor output and air-fuel ratio correction. Timing chart showing the relationship between coefficients, 4th
The figure is a flowchart showing a program for determining abnormality of the injector. DESCRIPTION OF SYMBOLS 1... Engine, 4... Fuel injection valve (injector), 12... Oxygen sensor, 13... Operating state detection means, 14... Control unit.
Claims (1)
入混合気の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に基づいて、吸入混
合気の空燃比が所定の目標空燃比となるように燃
料噴射量を制御する制御手段と、 (d) 制御手段の出力に基づいて燃料を噴射する
噴射手段と、 (e) エンジンが所定の過濃混合気運転領域にあ
るとき、空燃比検出手段の出力の低下に基づいて
噴射手段の異常を判別する異常判別手段と、 を備えたことを特徴とする電子制御燃料噴射装
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 using the oxygen concentration in exhaust gas as a parameter; (b) Operating state detection means for detecting the operating state of the engine; , (c) control means for controlling the fuel injection amount so that the air-fuel ratio of the intake air-fuel mixture becomes a predetermined target air-fuel ratio based on the output of the air-fuel ratio detection means; and (d) the control means for controlling the fuel injection amount based on the output of the control means. An injection means for injecting fuel; and (e) an abnormality determination means for determining an abnormality of the injection means based on a decrease in the output of the air-fuel ratio detection means when the engine is in a predetermined rich mixture operation region. An electronically controlled fuel injection device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13632686U JPS6342846U (en) | 1986-09-04 | 1986-09-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13632686U JPS6342846U (en) | 1986-09-04 | 1986-09-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6342846U true JPS6342846U (en) | 1988-03-22 |
Family
ID=31039328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13632686U Pending JPS6342846U (en) | 1986-09-04 | 1986-09-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6342846U (en) |
-
1986
- 1986-09-04 JP JP13632686U patent/JPS6342846U/ja active Pending
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