JPH0183145U - - Google Patents
Info
- Publication number
- JPH0183145U JPH0183145U JP1987178101U JP17810187U JPH0183145U JP H0183145 U JPH0183145 U JP H0183145U JP 1987178101 U JP1987178101 U JP 1987178101U JP 17810187 U JP17810187 U JP 17810187U JP H0183145 U JPH0183145 U JP H0183145U
- Authority
- JP
- Japan
- Prior art keywords
- engine
- fuel ratio
- air
- temperature
- detecting
- 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 7
- 238000001514 detection method Methods 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 claims 3
- 230000036760 body temperature Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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２，３図は本
考案に係る内燃機関の空燃比制御装置の一実施例
を示す図であり、第２図はその全体構成図、第３
図はその空燃比制御のプログラムを示すフローチ
ヤートである。
１……エンジン、５……インジエクタ（操作手
段）、１１……水温センサ（機関温度検出手段）
、１２……排気温度センサ（排気温度検出手段）
、１５……運転状態検出手段、１６……コントロ
ールユニツト（異常判別手段、制御手段）、１７
……故障表示ユニツト（警報手段）。
Fig. 1 is a basic conceptual diagram of the present invention, Figs. 2 and 3 are diagrams showing an embodiment of an air-fuel ratio control device for an internal combustion engine according to the present invention, Fig. 2 is an overall configuration diagram thereof, and Fig. 3 is a diagram showing an embodiment of the air-fuel ratio control device for an internal combustion engine according to the present invention.
The figure is a flowchart showing the air-fuel ratio control program. 1...Engine, 5...Injector (operating means), 11...Water temperature sensor (engine temperature detection means)
, 12...Exhaust temperature sensor (exhaust temperature detection means)
, 15... Operating state detection means, 16... Control unit (abnormality determination means, control means), 17
...Failure display unit (alarm means).
Claims (1)
段と、 (b) 機関本体の温度を検出する機関温度検出手
段と、 (c) 排気系の温度を検出する排気温度検出手段
と、 (d) 機関停止後、一定時間が経過した後、機関
本体温度と排気系温度を比較し、その差が所定値
以上のとき異常信号を出力する異常判別手段と、 (e) 機関の運転状態に基づいて空燃比を制御す
る制御値を演算するとともに、前記異常信号が出
力されると、空燃比を濃い側の所定値に固定する
制御手段と、 (f) 制御手段の出力に基づいて空燃比に関連す
るパラメータを操作する操作手段と 〓(g)ｇ〓 前記異常信号が出力されると、警報
を発する警報手段と、 を備えたことを特徴とする内燃機関の空燃比制御
装置。[Scope of claim for utility model registration] (a) Operating state detection means for detecting the operating state of the engine; (b) Engine temperature detection means for detecting the temperature of the engine body; (c) For detecting the temperature of the exhaust system. (d) An abnormality determining means that compares the engine body temperature and the exhaust system temperature after a certain period of time has passed after the engine is stopped, and outputs an abnormal signal when the difference is greater than a predetermined value; e) a control means that calculates a control value for controlling the air-fuel ratio based on the operating state of the engine, and fixes the air-fuel ratio to a predetermined value on the rich side when the abnormal signal is output; (f) a control means An internal combustion engine characterized by comprising: an operating means for manipulating a parameter related to the air-fuel ratio based on the output of the (g) g; and an alarm means for issuing an alarm when the abnormal signal is output. Air-fuel ratio control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987178101U JPH0183145U (en) | 1987-11-20 | 1987-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987178101U JPH0183145U (en) | 1987-11-20 | 1987-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0183145U true JPH0183145U (en) | 1989-06-02 |
Family
ID=31469734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987178101U Pending JPH0183145U (en) | 1987-11-20 | 1987-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0183145U (en) |
-
1987
- 1987-11-20 JP JP1987178101U patent/JPH0183145U/ja active Pending