JPH0161439U - - Google Patents
Info
- Publication number
- JPH0161439U JPH0161439U JP15669087U JP15669087U JPH0161439U JP H0161439 U JPH0161439 U JP H0161439U JP 15669087 U JP15669087 U JP 15669087U JP 15669087 U JP15669087 U JP 15669087U JP H0161439 U JPH0161439 U JP H0161439U
- Authority
- JP
- Japan
- Prior art keywords
- correction coefficient
- fuel injection
- air
- fuel ratio
- injection 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
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 3
- 239000000498 cooling water Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
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６図は制御内容を示すフローチヤートである
。
１……機関、６……スロツトル弁、７……燃料
噴射弁、８……コントロールユニツト、９……エ
アフローメータ、１０……クランク角センサ、１
１……スロツトルセンサ、１２……水温センサ、
１４……Ｏ２センサ。
Figure 1 is a block diagram showing the configuration of the present invention, Figure 2 is a block diagram showing the configuration of the present invention.
The figure is a system diagram showing one embodiment of the present invention, and FIGS. 3 to 6 are flowcharts showing control contents. DESCRIPTION OF SYMBOLS 1... Engine, 6... Throttle valve, 7... Fuel injection valve, 8... Control unit, 9... Air flow meter, 10... Crank angle sensor, 1
1...Throttle sensor, 12...Water temperature sensor,
14... O2 sensor.
Claims (1)
態のパラメータに基づいて基本燃料噴射量を演算
する基本燃料噴射量演算手段と、空燃比を検出し
て目標空燃比にフイードバツク制御すべく空燃比
フイードバツク補正係数を設定する空燃比フイー
ドバツク補正係数設定手段と、始動時の冷却水温
に応じ所定の水温となるまで空燃比フイードバツ
ク補正係数をクランプする空燃比フイードバツク
補正係数クランプ手段と、加速時に少なくとも冷
却水温に応じて壁流補正係数を設定する壁流補正
係数設定手段と、前記基本燃料噴射量、空燃比フ
イードバツク補正係数及び壁流補正係数に基づい
て燃料噴射量を演算する燃料噴射量演算手段と、
演算された燃料噴射量に対応する駆動パルス信号
に応じオンオフ的に燃料を機関に噴射供給する燃
料噴射手段とを備える内燃機関の電子制御燃料噴
射装置において、前記壁流補正係数設定手段によ
り設定される壁流補正係数の値を空燃比フイード
バツク制御中か否かにより切換える切換手段を設
けたことを特徴とする内燃機関の電子制御燃料噴
射装置。 A basic fuel injection amount calculation means that calculates a basic fuel injection amount based on engine operating state parameters related to the amount of air taken into the engine, and an air-fuel ratio feedback control unit that detects the air-fuel ratio and performs feedback control to a target air-fuel ratio. an air-fuel ratio feedback correction coefficient setting means for setting a correction coefficient; an air-fuel ratio feedback correction coefficient clamping means for clamping the air-fuel ratio feedback correction coefficient until a predetermined water temperature is reached according to the cooling water temperature at the time of startup; wall flow correction coefficient setting means for setting a wall flow correction coefficient accordingly; and fuel injection amount calculation means for calculating the fuel injection amount based on the basic fuel injection amount, the air-fuel ratio feedback correction coefficient, and the wall flow correction coefficient;
In an electronically controlled fuel injection device for an internal combustion engine, the electronically controlled fuel injection device for an internal combustion engine includes a fuel injection device that injects fuel into the engine on and off in response to a drive pulse signal corresponding to a calculated fuel injection amount. 1. An electronically controlled fuel injection system for an internal combustion engine, comprising a switching means for switching the value of a wall flow correction coefficient depending on whether air-fuel ratio feedback control is being performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15669087U JPH0161439U (en) | 1987-10-15 | 1987-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15669087U JPH0161439U (en) | 1987-10-15 | 1987-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0161439U true JPH0161439U (en) | 1989-04-19 |
Family
ID=31435453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15669087U Pending JPH0161439U (en) | 1987-10-15 | 1987-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0161439U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61116041A (en) * | 1984-11-09 | 1986-06-03 | Honda Motor Co Ltd | Method of controlling air-fuel ratio feedback control of internal-combustion engine |
-
1987
- 1987-10-15 JP JP15669087U patent/JPH0161439U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61116041A (en) * | 1984-11-09 | 1986-06-03 | Honda Motor Co Ltd | Method of controlling air-fuel ratio feedback control of internal-combustion engine |