JPS60116053U - Air-fuel ratio control device for internal combustion engines - Google Patents
Air-fuel ratio control device for internal combustion enginesInfo
- Publication number
- JPS60116053U JPS60116053U JP339684U JP339684U JPS60116053U JP S60116053 U JPS60116053 U JP S60116053U JP 339684 U JP339684 U JP 339684U JP 339684 U JP339684 U JP 339684U JP S60116053 U JPS60116053 U JP S60116053U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- internal combustion
- control device
- ratio control
- 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
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図、第２図は夫々、従来の空燃比フィードバック制
御方式による各部の特性を示す図、第３図は、本考案の
構成を示すブロック図、第４図は、本考案の一実施例の
構成を示すブロック図、第５図は同上実施例の制御動作
を示すフローチャート、第６図は同上実施例による制御
時の各部の特性を示す線図である。
１・・・点火コイル、２・・・エアフローメータ、３・
・・０２センサ、４・・・車速センサ、５・・・スロッ
トル全閉スイッチ、６・・・基本噴射量演算回路、７・
・・空燃比フィードバック補正係数演算回路、８・・・
乗算回路、９・・・駆動回路、１０・・・フューエルイ
ンジェクタ。Figures 1 and 2 are diagrams showing the characteristics of each part according to the conventional air-fuel ratio feedback control method, Figure 3 is a block diagram showing the configuration of the present invention, and Figure 4 is an embodiment of the present invention. FIG. 5 is a flowchart showing the control operation of the above embodiment, and FIG. 6 is a diagram showing the characteristics of each part during control according to the above embodiment. 1... Ignition coil, 2... Air flow meter, 3...
02 sensor, 4... Vehicle speed sensor, 5... Throttle fully closed switch, 6... Basic injection amount calculation circuit, 7.
...Air-fuel ratio feedback correction coefficient calculation circuit, 8...
Multiplier circuit, 9... Drive circuit, 10... Fuel injector.
Claims (1)
基づいて検出される実際の空燃ルを理論空燃比に近づけ
るように機関への燃料供給量をフィードバック制御する
ことにより空燃比を制御するようにした内燃機関の空燃
比制御装置において、アイドル運転を検出する手段と、
前記検出手段によるアイドル運転検出時、空燃比が理論
空燃比から所定範囲内に接近したか否かを判別する手段
と、前記判別手段により所定範囲内に接近したことを検
出した時フィードバック制御の制御速度を減少させるよ
うに切換える手段とを設けたことを特徴とする内燃機関
の空燃比制御装置。The air-fuel ratio is controlled by feedback-controlling the amount of fuel supplied to the engine so that the actual air-fuel detected based on the exhaust oxygen concentration signal from the 02 sensor installed in the exhaust system approaches the stoichiometric air-fuel ratio. In the air-fuel ratio control device for an internal combustion engine, a means for detecting idling operation;
means for determining whether the air-fuel ratio has approached within a predetermined range from the stoichiometric air-fuel ratio when the detection means detects idling; and feedback control when the determination means detects that the air-fuel ratio has approached within the predetermined range. 1. An air-fuel ratio control device for an internal combustion engine, comprising means for switching to reduce the speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP339684U JPS60116053U (en) | 1984-01-17 | 1984-01-17 | Air-fuel ratio control device for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP339684U JPS60116053U (en) | 1984-01-17 | 1984-01-17 | Air-fuel ratio control device for internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60116053U true JPS60116053U (en) | 1985-08-06 |
Family
ID=30477983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP339684U Pending JPS60116053U (en) | 1984-01-17 | 1984-01-17 | Air-fuel ratio control device for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60116053U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51124739A (en) * | 1975-04-24 | 1976-10-30 | Nissan Motor Co Ltd | An air fuel ratio control apparatus |
| JPS55142944A (en) * | 1979-04-24 | 1980-11-07 | Nissan Motor Co Ltd | Intake air quantity control equipment |
| JPS57110745A (en) * | 1980-12-27 | 1982-07-09 | Fuji Heavy Ind Ltd | Engine speed controlling device |
-
1984
- 1984-01-17 JP JP339684U patent/JPS60116053U/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51124739A (en) * | 1975-04-24 | 1976-10-30 | Nissan Motor Co Ltd | An air fuel ratio control apparatus |
| JPS55142944A (en) * | 1979-04-24 | 1980-11-07 | Nissan Motor Co Ltd | Intake air quantity control equipment |
| JPS57110745A (en) * | 1980-12-27 | 1982-07-09 | Fuji Heavy Ind Ltd | Engine speed controlling device |
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