JPH01141340U - - Google Patents
Info
- Publication number
- JPH01141340U JPH01141340U JP3732988U JP3732988U JPH01141340U JP H01141340 U JPH01141340 U JP H01141340U JP 3732988 U JP3732988 U JP 3732988U JP 3732988 U JP3732988 U JP 3732988U JP H01141340 U JPH01141340 U JP H01141340U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- engine
- oxygen sensor
- pair
- connecting portion
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000000446 fuel Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims 2
- 238000005259 measurement Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 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気筒別燃料噴射
制御装置の全体構成図、第２図は気筒別燃料噴射
量の制御処理を示す流れ図である。
１Ａ，１Ｂ，１Ｃ，１Ｄ…気筒、１０…噴射弁
、１１…排気マニホールド、１１Ａ，１１Ｂ，１
１Ｃ，１１Ｄ…分岐管、１１Ｅ，１１Ｆ…連結管
、１４，１５…酸素センサ。
FIG. 1 is an overall configuration diagram of a cylinder-specific fuel injection control device according to an embodiment of the present invention, and FIG. 2 is a flowchart showing a cylinder-specific fuel injection amount control process. 1A, 1B, 1C, 1D...Cylinder, 10...Injection valve, 11...Exhaust manifold, 11A, 11B, 1
1C, 11D... branch pipe, 11E, 11F... connecting pipe, 14, 15... oxygen sensor.
Claims (1)
射弁と、該エンジンの各気筒に接続された分岐管
を２本を一対として１本の排気管に接続してなる
排気マニホールドと、該排気マニホールドの各一
対の分岐管の連結部毎に１個設けられ、該各分岐
管から該連結部に排出される排気ガス中の酸素濃
度を検出する酸素センサと、前記エンジンの回転
数が所定値以下のときには該酸素センサからの出
力を各気筒別の酸素濃度として測定し、エンジン
回転数が所定値以上のときには該酸素センサから
の出力を前記各一対の気筒毎の酸素濃度として測
定する濃度測定手段と、該濃度測定手段による測
定結果に基づき前記エンジンの回転数のいかんを
問わず気筒別のフイードバツク補正係数を演算す
るフイードバツク補正係数演算手段と、該演算手
段により求めた各気筒毎のフイードバツク補正係
数により該各気筒毎の噴射弁に出力する燃料噴射
量を演算する噴射量演算手段とから構成してなる
気筒別燃料噴射制御装置。 An injection valve provided on the intake pipe side for each cylinder of the engine, an exhaust manifold formed by connecting two branch pipes connected to each cylinder of the engine to one exhaust pipe as a pair, and the exhaust manifold. An oxygen sensor is provided for each connecting portion of each pair of branch pipes of the manifold and detects the oxygen concentration in the exhaust gas discharged from each branch pipe to the connecting portion, and an oxygen sensor is provided for each connecting portion of each pair of branch pipes of the manifold, and an oxygen sensor is provided for detecting the oxygen concentration in the exhaust gas discharged from each branch pipe to the connecting portion, and the rotation speed of the engine is set to a predetermined value. Concentration measurement in which the output from the oxygen sensor is measured as the oxygen concentration for each cylinder in the following cases, and the output from the oxygen sensor is measured as the oxygen concentration for each of the pair of cylinders when the engine speed is above a predetermined value. a feedback correction coefficient calculating means for calculating a feedback correction coefficient for each cylinder regardless of the rotational speed of the engine based on the measurement result by the concentration measuring means; and feedback correction for each cylinder determined by the calculating means. A fuel injection control device for each cylinder, comprising an injection amount calculation means for calculating the amount of fuel injection to be output to the injection valve of each cylinder based on a coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3732988U JPH01141340U (en) | 1988-03-22 | 1988-03-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3732988U JPH01141340U (en) | 1988-03-22 | 1988-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01141340U true JPH01141340U (en) | 1989-09-28 |
Family
ID=31263911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3732988U Pending JPH01141340U (en) | 1988-03-22 | 1988-03-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01141340U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59101562A (en) * | 1982-11-30 | 1984-06-12 | Mazda Motor Corp | Air-fuel ratio controller of multi-cylinder engine |
| JPS61138849A (en) * | 1984-12-10 | 1986-06-26 | Honda Motor Co Ltd | Feed back controlling method for fuel supply of multi-cylinder internal-combustion engine |
-
1988
- 1988-03-22 JP JP3732988U patent/JPH01141340U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59101562A (en) * | 1982-11-30 | 1984-06-12 | Mazda Motor Corp | Air-fuel ratio controller of multi-cylinder engine |
| JPS61138849A (en) * | 1984-12-10 | 1986-06-26 | Honda Motor Co Ltd | Feed back controlling method for fuel supply of multi-cylinder internal-combustion engine |
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