JPS5840535U - Engine air-fuel ratio control device - Google Patents
Engine air-fuel ratio control deviceInfo
- Publication number
- JPS5840535U JPS5840535U JP13408581U JP13408581U JPS5840535U JP S5840535 U JPS5840535 U JP S5840535U JP 13408581 U JP13408581 U JP 13408581U JP 13408581 U JP13408581 U JP 13408581U JP S5840535 U JPS5840535 U JP S5840535U
- Authority
- JP
- Japan
- Prior art keywords
- fuel ratio
- engine
- control device
- coupling capacitor
- air
- 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.)
- Granted
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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案によるエンジンの空燃比制御装置の一実
施例を示す電気回路図、第２図は第１図の電気回路図の
特性図を示す。
１・・・・・・酸素濃度検出器、２・・・・・・増幅器
、３・・・・・・交流結合コンデンサ、４・・・・・・
バイパス抵抗器、９・・・・・・比較器、１０・・・・
・・正帰環用抵抗器、１１゜１２・・・・・・プルアッ
プ抵抗器、１３・・・・・・空燃比調整装置。FIG. 1 is an electric circuit diagram showing an embodiment of an engine air-fuel ratio control device according to the present invention, and FIG. 2 is a characteristic diagram of the electric circuit diagram of FIG. 1. 1...Oxygen concentration detector, 2...Amplifier, 3...AC coupling capacitor, 4...
Bypass resistor, 9... Comparator, 10...
...Positive return resistor, 11゜12...Pull-up resistor, 13...Air-fuel ratio adjustment device.
Claims (1)
の酸素濃度を検出する酸素濃度検出器の検出信号に基づ
いて該エンジンの空燃比を帰環制御するエンジンの空燃
比制御装置において、前記酸素濃度検出器の検出信号の
変化分を検出するための交流結合コンデンサ、該交流結
合コンデンサに並列に設けられ前記酸素濃度検出器の検
出信号の直流分の一部を前記交流結合コンデンサにより
検出された変化分信号を重畳するためのバイパス抵抗器
、前記交流結合コンデンサ、バイパス抵抗器の並列回路
よりの信号を受信し前記エンジンの空燃比を判定する比
較器を設けたことを特徴メするエンジンの空燃比制御装
置。In an engine air-fuel ratio control device that is provided in an exhaust system of the engine and performs return control of the air-fuel ratio of the engine based on a detection signal of an oxygen concentration detector that detects the oxygen concentration in the exhaust gas of the engine, the oxygen an AC coupling capacitor for detecting a change in the detection signal of the concentration detector; an AC coupling capacitor provided in parallel with the AC coupling capacitor so that a part of the DC component of the detection signal of the oxygen concentration detector is detected by the AC coupling capacitor; An air-fuel ratio for an engine, characterized in that it is provided with a bypass resistor for superimposing a change signal, the AC coupling capacitor, and a comparator for receiving a signal from a parallel circuit of the bypass resistor and determining the air-fuel ratio of the engine. Fuel ratio control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13408581U JPS5840535U (en) | 1981-09-09 | 1981-09-09 | Engine air-fuel ratio control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13408581U JPS5840535U (en) | 1981-09-09 | 1981-09-09 | Engine air-fuel ratio control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5840535U true JPS5840535U (en) | 1983-03-17 |
| JPS626271Y2 JPS626271Y2 (en) | 1987-02-13 |
Family
ID=29927527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13408581U Granted JPS5840535U (en) | 1981-09-09 | 1981-09-09 | Engine air-fuel ratio control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5840535U (en) |
-
1981
- 1981-09-09 JP JP13408581U patent/JPS5840535U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS626271Y2 (en) | 1987-02-13 |
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