JPH01166740U - - Google Patents
Info
- Publication number
- JPH01166740U JPH01166740U JP6223888U JP6223888U JPH01166740U JP H01166740 U JPH01166740 U JP H01166740U JP 6223888 U JP6223888 U JP 6223888U JP 6223888 U JP6223888 U JP 6223888U JP H01166740 U JPH01166740 U JP H01166740U
- Authority
- JP
- Japan
- Prior art keywords
- fuel ratio
- air
- integral
- proportional
- 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 13
- 230000003247 decreasing effect Effects 0.000 claims 3
- 238000002485 combustion reaction Methods 0.000 claims 2
- 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図は本考案の構成を示す機能ブロツク図、
第２図は本考案の一実施例を示すシステム図、第
３図〜第５図は制御内容を示すフローチヤート、
第６図は比例分及び積分分のマツプを示す図であ
る。
１……機関、７……燃料噴射弁、１０……コン
トロールユニツト、１１……エアフローメータ、
１２……クランク角センサ、１３……Ｏ２センサ
、１５……アイドルスイツチ。
Figure 1 is a functional block diagram showing the configuration of the present invention.
Fig. 2 is a system diagram showing an embodiment of the present invention, Figs. 3 to 5 are flow charts showing control contents,
FIG. 6 is a diagram showing a map of proportional and integral components. 1... Engine, 7... Fuel injection valve, 10... Control unit, 11... Air flow meter,
12...Crank angle sensor, 13... O2 sensor, 15...Idle switch.
Claims (1)
気の空燃比を検出する空燃比検出手段と、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
チに応じ空燃比フイードバツク補正係数を所定時
間毎に所定の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ときの空燃
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、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、機関回転数と燃料供給量
とをパラメータとする機関運転状態のエリア毎に
前記比例分及び積分分を記憶した比例分及び積分
分記憶手段と、実際の機関運転状態のエリアに基
づき前記比例分及び積分分記憶手段から比例分及
び積分分を検索して設定する比例分及び積分分設
定手段と、アイドル運転状態を検出するアイドル
運転状態検出手段と、アイドル運転状態の検出時
に前記比例分及び積分分設定手段により設定され
た比例分及び積分分を減少補正する比例分及び積
分分減少補正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。 air-fuel ratio detection means for detecting engine exhaust components and thereby detecting the air-fuel ratio of the engine intake mixture; an air-fuel ratio feedback correction coefficient proportional control means for decreasing the air-fuel ratio feedback correction coefficient; an air-fuel ratio feedback correction coefficient integral control means for increasing or decreasing the air-fuel ratio feedback correction coefficient by a predetermined integral amount at predetermined time intervals according to lean/rich air-fuel ratio; An air-fuel ratio feedback control device for an internal combustion engine that feedback-controls the air-fuel ratio to a target air-fuel ratio, comprising: Proportional and integral storage means that stores the proportional and integral components for each area of the engine operating state with the engine speed and fuel supply amount as parameters; Proportional and integral setting means for retrieving and setting a proportional and integral integral from an integral storage means; Idle operating state detecting means for detecting an idling operating state; 1. An air-fuel ratio feedback control device for an internal combustion engine, comprising: proportional and integral component reduction correction means for decreasing the proportional and integral components set by the setting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6223888U JPH01166740U (en) | 1988-05-13 | 1988-05-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6223888U JPH01166740U (en) | 1988-05-13 | 1988-05-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01166740U true JPH01166740U (en) | 1989-11-22 |
Family
ID=31287867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6223888U Pending JPH01166740U (en) | 1988-05-13 | 1988-05-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01166740U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6181544A (en) * | 1984-09-20 | 1986-04-25 | Honda Motor Co Ltd | Air-fuel ratio feedback control method for internal-combustion engine |
-
1988
- 1988-05-13 JP JP6223888U patent/JPH01166740U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6181544A (en) * | 1984-09-20 | 1986-04-25 | Honda Motor Co Ltd | Air-fuel ratio feedback control method for internal-combustion engine |