JPS58111333U - Air fuel ratio control device - Google Patents
Air fuel ratio control deviceInfo
- Publication number
- JPS58111333U JPS58111333U JP921382U JP921382U JPS58111333U JP S58111333 U JPS58111333 U JP S58111333U JP 921382 U JP921382 U JP 921382U JP 921382 U JP921382 U JP 921382U JP S58111333 U JPS58111333 U JP S58111333U
- Authority
- JP
- Japan
- Prior art keywords
- fuel supply
- oxygen sensor
- output
- fuel ratio
- control device
- 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
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図は空燃比の比例・積分制御状態を示す説明図であ
る。第２図は本考案の実施例を示す概略構成図、第３図
は制御回路の要部を示すブロック図である。
１・・・機関本体、２・・・吸気通路、３・・・排気通
路、６・・・燃料噴射弁、７・・・制御回路、８・・・
吸入空気量センサ、９・・・回転数センサ、１０・・・
酸素センサ、１１・・・周期算出器、１３・・−設定周
期演算器、１４・・・比較器、１５・・・判定回路、１
６・・・比例分補正回路。FIG. 1 is an explanatory diagram showing a state of proportional/integral control of the air-fuel ratio. FIG. 2 is a schematic configuration diagram showing an embodiment of the present invention, and FIG. 3 is a block diagram showing main parts of a control circuit. DESCRIPTION OF SYMBOLS 1... Engine body, 2... Intake passage, 3... Exhaust passage, 6... Fuel injection valve, 7... Control circuit, 8...
Intake air amount sensor, 9... Rotation speed sensor, 10...
Oxygen sensor, 11... Period calculator, 13... - Setting period calculator, 14... Comparator, 15... Judgment circuit, 1
6...Proportional component correction circuit.
Claims (1)
た排気中の酸素濃度を検出する酸素センサと、酸素セン
サの出力にもとづいて燃料供給量が目標値と一致するよ
うにフィードバック制御する制御回路とを備えた内燃機
関において、制御回路が、酸素センサの出力をもとにし
て燃料供給手段のフィードバック制御信号を比例・積分
によりつくりだす演算手段と、運転状態に応じてのフイ
・ −ドパツク制御周期を設定する手段と、この設
定周期を酸素センサの出力周期と比較して上記演算手段
の比例定数を増減する補正手段とを備えることを特徴と
する空燃比制御装置。Feedback control is performed based on the fuel supply means installed in the engine intake system, the oxygen sensor installed in the exhaust system to detect the oxygen concentration in the exhaust gas, and the output of the oxygen sensor so that the fuel supply amount matches the target value. In an internal combustion engine equipped with a control circuit, the control circuit includes arithmetic means that generates a feedback control signal for the fuel supply means based on the output of the oxygen sensor by proportion and integration, and a feedback control signal for the fuel supply means according to the operating state. An air-fuel ratio control device comprising means for setting a control cycle, and correction means for comparing the set cycle with an output cycle of an oxygen sensor and increasing or decreasing a proportionality constant of the calculation means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP921382U JPS58111333U (en) | 1982-01-26 | 1982-01-26 | Air fuel ratio control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP921382U JPS58111333U (en) | 1982-01-26 | 1982-01-26 | Air fuel ratio control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58111333U true JPS58111333U (en) | 1983-07-29 |
Family
ID=30021868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP921382U Pending JPS58111333U (en) | 1982-01-26 | 1982-01-26 | Air fuel ratio control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58111333U (en) |
-
1982
- 1982-01-26 JP JP921382U patent/JPS58111333U/en active Pending
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