JPH0169155U - - Google Patents
Info
- Publication number
- JPH0169155U JPH0169155U JP1987164422U JP16442287U JPH0169155U JP H0169155 U JPH0169155 U JP H0169155U JP 1987164422 U JP1987164422 U JP 1987164422U JP 16442287 U JP16442287 U JP 16442287U JP H0169155 U JPH0169155 U JP H0169155U
- Authority
- JP
- Japan
- Prior art keywords
- fuel ratio
- air
- engine
- fuel
- fuel supply
- 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 17
- 238000001514 detection method Methods 0.000 claims description 4
- 230000001052 transient effect Effects 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims 2
- 230000007704 transition Effects 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図は本考案の基本概念図、第２〜４図は本
考案の一実施例を示す図であり、第２図はその全
体構成図、第３図はその燃料供給制御のプログラ
ムを示すフローチヤート、第４図はその作用を説
明するためのタイミングチヤートである。
１……エンジン、４……インジエクタ（燃料供
給手段）、９……絞弁開度センサ（過渡検出手段
）、１３……運転状態検出手段、１４……コント
ロールユニツト（供給量設定手段）。
Figure 1 is a basic conceptual diagram of the present invention, Figures 2 to 4 are diagrams showing one embodiment of the present invention, Figure 2 is its overall configuration diagram, and Figure 3 is its fuel supply control program. The flowchart in FIG. 4 is a timing chart for explaining the operation. DESCRIPTION OF SYMBOLS 1... Engine, 4... Injector (fuel supply means), 9... Throttle valve opening sensor (transient detection means), 13... Operating state detection means, 14... Control unit (supply amount setting means).
Claims (1)
としてエンジンの運転状態を検出する運転状態検
出手段と、 (b) エンジンが所定の過渡状態にあることを検
出する過渡検出手段と、 (c) エンジンの運転状態に基づいてエンジンの
燃料供給量を設定し、この設定に際して少なくと
も運転領域の一部において目標空燃比が理論空燃
比よりリーン側となる空燃比をリーン空燃比とし
、それ以外を通常空燃比とするように該燃料供給
量を演算するとともに、エンジンがリーン空燃比
運転領域にあるとき所定の過渡状態に移行すると
、移行開始から所定期間は現行のリーン空燃比を
継続し、該所定期間が経過した後、リーン空燃比
を通常の空燃比とするように前記燃料供給量を演
算する供給量演算手段と、 (d) 供給量設定手段の出力に基づいて燃料を供
給する燃料供給手段と、 を備えたことを特徴とする内燃機関の燃料供給
制御装置。[Claims for Utility Model Registration] (a) Operating state detection means for detecting the operating state of the engine using the engine load and rotation speed as parameters; (b) Transient detection for detecting that the engine is in a predetermined transient state (c) setting the fuel supply amount of the engine based on the operating state of the engine, and in setting the air-fuel ratio at which the target air-fuel ratio is leaner than the stoichiometric air-fuel ratio in at least a part of the operating range; The fuel supply amount is calculated so that the other air-fuel ratios are set to the normal air-fuel ratio, and when the engine is in the lean air-fuel ratio operation region and shifts to a predetermined transient state, the current lean air-fuel ratio is maintained for a predetermined period from the start of the transition. (d) supply amount calculation means for calculating the fuel supply amount so that the lean air-fuel ratio becomes the normal air-fuel ratio after the predetermined period has elapsed; A fuel supply control device for an internal combustion engine, comprising: a fuel supply means for supplying; and a fuel supply control device for an internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987164422U JPH0169155U (en) | 1987-10-26 | 1987-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987164422U JPH0169155U (en) | 1987-10-26 | 1987-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0169155U true JPH0169155U (en) | 1989-05-08 |
Family
ID=31450016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987164422U Pending JPH0169155U (en) | 1987-10-26 | 1987-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0169155U (en) |
-
1987
- 1987-10-26 JP JP1987164422U patent/JPH0169155U/ja active Pending