JPS595747U - Air-fuel ratio control device for internal combustion engines - Google Patents
Air-fuel ratio control device for internal combustion enginesInfo
- Publication number
- JPS595747U JPS595747U JP9821282U JP9821282U JPS595747U JP S595747 U JPS595747 U JP S595747U JP 9821282 U JP9821282 U JP 9821282U JP 9821282 U JP9821282 U JP 9821282U JP S595747 U JPS595747 U JP S595747U
- Authority
- JP
- Japan
- Prior art keywords
- fuel ratio
- air
- 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
- Control Of The Air-Fuel Ratio Of Carburetors (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図は従来のソレノイドバルブつき気化器を用いた空
燃比制御装置の概要図、第２図は本考案の一実施例を示
す概要図、第３図はその制御プログラムを示すフローチ
ャートである。
１・・・気化器、６・・・補助燃料ジェット、７・・・
ツレ／イドバルブ、訃・・ソレノイド、１３．１３’・
・・空燃比１ｔＪＩ御用コントロールユニツト、１５・
・・排気センサ、１６・・・アイドル運転状態を検知す
るためのスロットルバルブスイッチ、１８・・・大気圧
の変化を検出する圧力センサ、２６・・・制御プログラ
ム中の空燃比の帰還制御を解除するブロック、２７・・
・同じ（圧力センサ出力を読み込むブロック、２８・・
・同じく圧力センサ出力に対応した制御パルス幅を演算
するブロック。FIG. 1 is a schematic diagram of an air-fuel ratio control device using a conventional carburetor with a solenoid valve, FIG. 2 is a schematic diagram showing an embodiment of the present invention, and FIG. 3 is a flowchart showing a control program thereof. 1... Carburetor, 6... Auxiliary fuel jet, 7...
Tsure/id valve, solenoid, 13.13'
・Air-fuel ratio 1tJI official control unit, 15・
...Exhaust sensor, 16...Throttle valve switch for detecting idling operation state, 18...Pressure sensor for detecting changes in atmospheric pressure, 26...Cancelling air-fuel ratio feedback control in the control program Block to do, 27...
・Same (block that reads pressure sensor output, 28...
・A block that also calculates the control pulse width corresponding to the pressure sensor output.
Claims (1)
空燃比制御用ツレ／イドバルブの開閉デユーティ比を変
化させて空燃比の帰還制御を行ない、アイドル運転状態
を検知する信号により上記帰還制御を解除してアイドル
運転時に適応した空燃比となるように上記ツレ／イドバ
ルブの開閉デユーティ比を制御する内燃機関の空燃比制
御装置において、大気圧の変化を検出する圧力センサと
大気圧の変化にかかわらずアイドル運転時の空燃比を規
定値に保つように上記圧力センサの出力に対応して上記
ソレノイドバルブに供給する制御パルスのパルス幅を変
化させ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。During normal operation of the engine, feedback control of the air-fuel ratio is performed by changing the opening/closing duty ratio of the air-fuel ratio control valve of the carburetor according to the output of the exhaust sensor, and the above-mentioned feedback control is canceled by a signal that detects the idle operating state. In an air-fuel ratio control device for an internal combustion engine that controls the opening/closing duty ratio of the above-mentioned strain/id valve so that the air-fuel ratio is adjusted to an air-fuel ratio suitable for idling operation, there is a pressure sensor that detects changes in atmospheric pressure and a pressure sensor that detects changes in atmospheric pressure. An air conditioner for an internal combustion engine, characterized in that it is provided with means for changing the pulse width of a control pulse supplied to the solenoid valve in response to the output of the pressure sensor so as to maintain the air-fuel ratio at a specified value during idling operation. Fuel ratio control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9821282U JPS595747U (en) | 1982-07-01 | 1982-07-01 | Air-fuel ratio control device for internal combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9821282U JPS595747U (en) | 1982-07-01 | 1982-07-01 | Air-fuel ratio control device for internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS595747U true JPS595747U (en) | 1984-01-14 |
Family
ID=30233280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9821282U Pending JPS595747U (en) | 1982-07-01 | 1982-07-01 | Air-fuel ratio control device for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS595747U (en) |
-
1982
- 1982-07-01 JP JP9821282U patent/JPS595747U/en active Pending
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