JPH01144446U - - Google Patents
Info
- Publication number
- JPH01144446U JPH01144446U JP4028888U JP4028888U JPH01144446U JP H01144446 U JPH01144446 U JP H01144446U JP 4028888 U JP4028888 U JP 4028888U JP 4028888 U JP4028888 U JP 4028888U JP H01144446 U JPH01144446 U JP H01144446U
- Authority
- JP
- Japan
- Prior art keywords
- air
- fuel ratio
- fuel
- alcohol
- supply amount
- 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 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000001514 detection method Methods 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
- 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ブロツク図、第２
図は本考案の一実施例を示すシステム概略図、第
３図〜第６図はそれぞれ同上実施例における制御
内容を示すフローチヤートである。
１１……吸気管、１２……排気管、２６……燃
料噴射弁、３３……酸素センサ、３９……アルコ
ールセンサ、４０……コントロールユニツト。
Figure 1 is a block diagram showing the configuration of the present invention;
The figure is a system schematic diagram showing one embodiment of the present invention, and FIGS. 3 to 6 are flowcharts showing control details in the same embodiment. DESCRIPTION OF SYMBOLS 11...Intake pipe, 12...Exhaust pipe, 26...Fuel injection valve, 33...Oxygen sensor, 39...Alcohol sensor, 40...Control unit.
Claims (1)
センサを備え、該アルコールセンサによつて検出
される燃料中のアルコール濃度に応じて燃料供給
量を制御するよう構成されたアルコール内燃機関
において、 機関排気成分を検出しこれにより機関吸入混合
気の空燃比を検出する空燃比検出手段と、 該空燃比検出手段により検出された実際の空燃
比と目標空燃比とを比較して、実際の空燃比を目
標空燃比に近づけるように燃料供給量をフイード
バツク補正する空燃比フイードバツク補正制御手
段と、 該空燃比フイードバツク補正制御手段における
フイードバツク補正値を学習して、この学習値に
基づいて燃料供給量を補正する空燃比学習補正手
段と、 前記アルコールセンサによる検出値が所定期間
において所定以上に変化しているときに前記空燃
比学習補正手段による学習を禁止する空燃比学習
禁止手段と、 を含んで構成されたことを特徴とするアルコー
ル内燃機関の空燃比制御装置。[Claims for Utility Model Registration] An alcohol internal combustion system comprising an alcohol sensor for detecting the alcohol concentration in the fuel and configured to control the fuel supply amount according to the alcohol concentration in the fuel detected by the alcohol sensor. In the engine, an air-fuel ratio detection means detects engine exhaust components and thereby detects the air-fuel ratio of the engine intake air-fuel mixture, and compares the actual air-fuel ratio detected by the air-fuel ratio detection means with a target air-fuel ratio, An air-fuel ratio feedback correction control means for feedback-correcting the fuel supply amount so as to bring the actual air-fuel ratio closer to the target air-fuel ratio, and a feedback correction value in the air-fuel ratio feedback correction control means is learned, and the fuel is adjusted based on the learned value. an air-fuel ratio learning correction means for correcting the supply amount; and an air-fuel ratio learning prohibition means for prohibiting learning by the air-fuel ratio learning correction means when the detected value by the alcohol sensor changes by more than a predetermined value in a predetermined period. An air-fuel ratio control device for an alcohol internal combustion engine, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4028888U JPH01144446U (en) | 1988-03-29 | 1988-03-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4028888U JPH01144446U (en) | 1988-03-29 | 1988-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01144446U true JPH01144446U (en) | 1989-10-04 |
Family
ID=31266760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4028888U Pending JPH01144446U (en) | 1988-03-29 | 1988-03-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01144446U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009024504A (en) * | 2007-07-17 | 2009-02-05 | Mitsubishi Electric Corp | Control device of internal combustion engine |
-
1988
- 1988-03-29 JP JP4028888U patent/JPH01144446U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009024504A (en) * | 2007-07-17 | 2009-02-05 | Mitsubishi Electric Corp | Control device of internal combustion engine |
| JP4523020B2 (en) * | 2007-07-17 | 2010-08-11 | 三菱電機株式会社 | Control device for internal combustion engine |