JPH0228541U - - Google Patents
Info
- Publication number
- JPH0228541U JPH0228541U JP10536788U JP10536788U JPH0228541U JP H0228541 U JPH0228541 U JP H0228541U JP 10536788 U JP10536788 U JP 10536788U JP 10536788 U JP10536788 U JP 10536788U JP H0228541 U JPH0228541 U JP H0228541U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- fuel
- correction coefficient
- ratio feedback
- 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 21
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案に係る内燃機関の空燃比フイー
ドバツク制御装置の構成を示す機能ブロツク図、
第２図は同上の内燃機関の空燃比フイードバツク
制御装置の一実施例を示すシステム図、第３図及
び第４図は制御内容を示すフローチヤート、第５
図は従来及び本考案の制御特性図である。
１……機関、８……燃料噴射弁、１３……Ｏ２
センサ、１８……コントロールユニツト。
FIG. 1 is a functional block diagram showing the configuration of an air-fuel ratio feedback control device for an internal combustion engine according to the present invention;
FIG. 2 is a system diagram showing an embodiment of the air-fuel ratio feedback control device for the internal combustion engine, FIGS. 3 and 4 are flowcharts showing control details, and FIG.
The figures are control characteristic diagrams of the conventional and the present invention. 1... Engine, 8... Fuel injection valve, 13... O 2
Sensor, 18...control unit.
Claims (1)
手段と、空燃比がリツチからリーン又はリーンか
らリツチに反転した時に空燃比フイードバツク補
正係数を所定の比例分増大又は減少させる空燃比
フイードバツク補正係数比例制御手段と、空燃比
のリーン・リツチに応じて空燃比フイードバツク
補正係数を設定された積分分増大又は減少させる
空燃比フイードバツク補正係数積分制御手段と、
機関への燃料供給手段による燃料供給量をその時
の空燃比フイードバツク補正係数で補正する燃料
供給量補正手段と、を備えて構成され、空燃比を
目標空燃比にフイードバツク制御する内燃機関の
空燃比フイードバツク制御装置において、空燃比
の反転後の反転経過時間を計時する計時手段と、
該計時手段により計時された前記経過時間に応じ
て前記増大又は減少積分分を設定する積分分設定
手段と、を設けたことを特徴とする内燃機関の空
燃比フイードバツク制御装置。 an air-fuel ratio detection means for detecting the air-fuel ratio of the engine intake air-fuel mixture; and an air-fuel ratio feedback correction coefficient proportional to increase or decrease the air-fuel ratio feedback correction coefficient by a predetermined proportional amount when the air-fuel ratio is reversed from rich to lean or from lean to rich. a control means; an air-fuel ratio feedback correction coefficient integral control means for increasing or decreasing the air-fuel ratio feedback correction coefficient by a set integral amount in accordance with lean/rich air-fuel ratio;
A fuel supply amount correction means for correcting the amount of fuel supplied by the fuel supply means to the engine with an air-fuel ratio feedback correction coefficient at that time, and an air-fuel ratio feedback control for an internal combustion engine that feedback-controls the air-fuel ratio to a target air-fuel ratio. In the control device, a timing means for timing the reversal elapsed time after the reversal of the air-fuel ratio;
An air-fuel ratio feedback control device for an internal combustion engine, comprising: integral setting means for setting the increase or decrease integral according to the elapsed time measured by the timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10536788U JPH0228541U (en) | 1988-08-11 | 1988-08-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10536788U JPH0228541U (en) | 1988-08-11 | 1988-08-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0228541U true JPH0228541U (en) | 1990-02-23 |
Family
ID=31337918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10536788U Pending JPH0228541U (en) | 1988-08-11 | 1988-08-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0228541U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60172286A (en) * | 1984-02-17 | 1985-09-05 | Amano Pharmaceut Co Ltd | Novel antibiotic substance af-7368a and preparation thereof |
| JPS6171196A (en) * | 1984-09-13 | 1986-04-12 | Kawasaki Steel Corp | Submerged arc welding method of low cr-mo alloy steel |
| JPS6397847A (en) * | 1986-10-13 | 1988-04-28 | Toyota Motor Corp | Air-fuel ratio control device for internal combustion engine |
-
1988
- 1988-08-11 JP JP10536788U patent/JPH0228541U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60172286A (en) * | 1984-02-17 | 1985-09-05 | Amano Pharmaceut Co Ltd | Novel antibiotic substance af-7368a and preparation thereof |
| JPS6171196A (en) * | 1984-09-13 | 1986-04-12 | Kawasaki Steel Corp | Submerged arc welding method of low cr-mo alloy steel |
| JPS6397847A (en) * | 1986-10-13 | 1988-04-28 | Toyota Motor Corp | Air-fuel ratio control device for internal combustion engine |