JPH03104142U - - Google Patents
Info
- Publication number
- JPH03104142U JPH03104142U JP1323790U JP1323790U JPH03104142U JP H03104142 U JPH03104142 U JP H03104142U JP 1323790 U JP1323790 U JP 1323790U JP 1323790 U JP1323790 U JP 1323790U JP H03104142 U JPH03104142 U JP H03104142U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- injection amount
- value
- air
- control region
- 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
- 239000000446 fuel Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 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図はこの考案にかかる空燃比制御装置のＥ
ＣＵのブロツク構成図、第２図はこの考案にかか
るエンジンの全体構成図、第３図は燃料噴射量制
御のメインルーチンを示すフローチヤート、第４
図はフイードバツク補正量を演算するためのサブ
ルーチンを示すフローチヤート、第５図は学習値
を演算するためのサブルーチンを示すフローチヤ
ート、第６図は学習値の制限の動作を説明するた
めのグラフである。
１……ＥＣＵ、２……基本量演算手段、３……
補正量演算手段、４……学習値演算手段、５……
判別手段、６……制限手段、７……最終量演算手
段、８……制御手段、２７……エアフローメータ
、２９……インジエクタ、３１……Ｏ２センサ、
３２……水温センサ。
Figure 1 shows the E of the air-fuel ratio control device according to this invention.
FIG. 2 is a block diagram of the CU, FIG. 2 is an overall diagram of the engine according to this invention, FIG. 3 is a flowchart showing the main routine of fuel injection amount control, and FIG.
The figure is a flowchart showing a subroutine for calculating the feedback correction amount, Figure 5 is a flowchart showing a subroutine for calculating a learning value, and Figure 6 is a graph for explaining the operation of limiting the learning value. be. 1...ECU, 2...Basic quantity calculation means, 3...
Correction amount calculation means, 4... Learning value calculation means, 5...
Discrimination means, 6... Limiting means, 7... Final amount calculation means, 8... Control means, 27... Air flow meter, 29... Injector, 31... O 2 sensor,
32...Water temperature sensor.
Claims (1)
空燃比検出信号に基づくフイードバツク補正量と
上記フイードバツク補正量に基づいて設定される
学習値とによつて燃料噴射量を演算し、オープン
制御領域では上記基本燃料噴射量と上記学習値と
によつて燃料噴射量を演算するエンジンの空燃比
制御装置において、上記学習値がリーン側に設定
されているかどうかを判別する判別手段と、少な
くとも上記オープン制御領域において上記学習値
がリーン側の場合に、上記学習値の反映を制限す
る制限手段とを備えたことを特徴とするエンジン
の空燃比制御装置。 In the feedback control region, the fuel injection amount is calculated based on the basic fuel injection amount, the feedback correction amount based on the air-fuel ratio detection signal, and the learning value set based on the feedback correction amount, and in the open control region, the basic fuel injection amount is An air-fuel ratio control device for an engine that calculates a fuel injection amount based on a fuel injection amount and the learned value, further comprising a determining means for determining whether the learned value is set to the lean side, and at least the learning value in the open control region. An air-fuel ratio control device for an engine, comprising: limiting means for limiting reflection of the learned value when the value is on the lean side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1323790U JPH0746750Y2 (en) | 1990-02-13 | 1990-02-13 | Air-fuel ratio controller for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1323790U JPH0746750Y2 (en) | 1990-02-13 | 1990-02-13 | Air-fuel ratio controller for engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03104142U true JPH03104142U (en) | 1991-10-29 |
| JPH0746750Y2 JPH0746750Y2 (en) | 1995-10-25 |
Family
ID=31516666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1323790U Expired - Lifetime JPH0746750Y2 (en) | 1990-02-13 | 1990-02-13 | Air-fuel ratio controller for engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0746750Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012101877A1 (en) * | 2011-01-24 | 2012-08-02 | パナソニック株式会社 | Humidifier |
-
1990
- 1990-02-13 JP JP1323790U patent/JPH0746750Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012101877A1 (en) * | 2011-01-24 | 2012-08-02 | パナソニック株式会社 | Humidifier |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0746750Y2 (en) | 1995-10-25 |