JPH023036U - - Google Patents
Info
- Publication number
- JPH023036U JPH023036U JP1988080313U JP8031388U JPH023036U JP H023036 U JPH023036 U JP H023036U JP 1988080313 U JP1988080313 U JP 1988080313U JP 8031388 U JP8031388 U JP 8031388U JP H023036 U JPH023036 U JP H023036U
- Authority
- JP
- Japan
- Prior art keywords
- fuel ratio
- air
- learning control
- feedback
- engine
- 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 13
- 238000001514 detection method Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は、本考案の実施例に係るエンジンの空
燃比制御装置の全体システム図、第２図、第３図
は、各々同装置の要部の制御回路図、第４図は、
一般的なＯ２フイードバツク領域特性を示すグラ
フである。
１……エンジン本体、２……エアフロメータ、
６……スロツトル弁、９……エンジンコントロー
ルユニツト、１０……排気管、１１……三元触媒
コンバータ、１３……Ｏ２センサ、５１〜５６…
…フユーエルインジエクタ。
FIG. 1 is an overall system diagram of an engine air-fuel ratio control device according to an embodiment of the present invention, FIGS. 2 and 3 are control circuit diagrams of main parts of the device, and FIG.
2 is a graph showing general O2 feedback region characteristics. 1...Engine body, 2...Air flow meter,
6...Throttle valve, 9...Engine control unit, 10...Exhaust pipe, 11...Three-way catalytic converter, 13... O2 sensor, 51-56...
...Fuel Injecta.
Claims (1)
る空燃比検出手段と、該空燃比検出手段の検出値
に基いてエンジンの実空燃比を所定の目標空燃比
にフイードバツク制御するフイードバツク制御手
段と、該空燃比フイードバツク制御手段の空燃比
フイードバツク値に基きエンジンの特定運転領域
において空燃比の学習補正値を演算し、該演算値
を上記フイードバツク値に反映させる学習制御手
段とを備えてなるエンジンの空燃比制御装置にお
いて、変速機が高速ギヤ位置にシフトされたこと
を検出する高速ギヤ位置検出手段と、上記学習制
御手段の学習制御動作を抑制する学習制御抑制手
段とを設け、高速ギヤでの走行時には上記学習制
御を行うべき特定の運転領域にあつても上記学習
制御手段の学習制御動作を抑制するようにしたこ
とを特徴とするエンジンの空燃比制御装置。 an air-fuel ratio detection means for detecting the air-fuel ratio of the air-fuel mixture supplied to the engine; a feedback control means for feedback-controlling the actual air-fuel ratio of the engine to a predetermined target air-fuel ratio based on the detected value of the air-fuel ratio detection means; A learning control means for calculating an air-fuel ratio learning correction value in a specific operating range of the engine based on the air-fuel ratio feedback value of the air-fuel ratio feedback control means, and reflecting the calculated value in the feedback value. The fuel ratio control device is provided with a high gear position detecting means for detecting that the transmission has been shifted to a high gear position, and a learning control suppressing means for suppressing the learning control operation of the learning control means, so that driving in the high gear is possible. An air-fuel ratio control device for an engine, characterized in that the learning control operation of the learning control means is sometimes suppressed even in a specific operating range in which the learning control should be performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988080313U JPH023036U (en) | 1988-06-16 | 1988-06-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988080313U JPH023036U (en) | 1988-06-16 | 1988-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH023036U true JPH023036U (en) | 1990-01-10 |
Family
ID=31305143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988080313U Pending JPH023036U (en) | 1988-06-16 | 1988-06-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH023036U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03123188U (en) * | 1990-03-28 | 1991-12-16 |
-
1988
- 1988-06-16 JP JP1988080313U patent/JPH023036U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03123188U (en) * | 1990-03-28 | 1991-12-16 |