JPH0349347U - - Google Patents
Info
- Publication number
- JPH0349347U JPH0349347U JP11070489U JP11070489U JPH0349347U JP H0349347 U JPH0349347 U JP H0349347U JP 11070489 U JP11070489 U JP 11070489U JP 11070489 U JP11070489 U JP 11070489U JP H0349347 U JPH0349347 U JP H0349347U
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- transient state
- throttle valve
- valve opening
- internal combustion
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 230000001052 transient effect Effects 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 230000007704 transition Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 230000002123 temporal effect Effects 0.000 description 1
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Description
第１図は本考案の一実施例に係る燃料供給制御
装置の全体構成図、第２図はスロツトル弁開度及
びエンジン回転数による予測ＰＢＡ演算処理を含
む過渡時基本燃料噴射量演算の継続回数設定のた
めの制御プログラムのフローチヤート、第３図は
Ｔｉマツプの一例を示す図、第４図は第２図のプ
ログラムのステツプＳ１０９で用いるＰＢＭマツ
プの一例を示す図、第５図は同じくステツプＳ１
１０で用いるＫＰＡＦＭテーブルの一例を示す図
、第６図Ａ及びＢは同じくステツプＳ１２０及び
Ｓ１２５で用いる継続回数Ｎ算出用テーブルの一
例を示す図、第７図は本考案の説明に供するスロ
ツトル弁開度並びに吸気管内絶対圧センサ出力値
及び実際の吸気管内絶対圧値の時間変化を示す図
である。
１……内燃機関、３′……スロツトル弁、４…
…スロツトル弁開度、５……電子コントロールユ
ニツト（ＥＣＵ）、６……燃料噴射弁、８……吸
気管内絶対圧センサ、１０……エンジン回転数セ
ンサ。
Fig. 1 is an overall configuration diagram of a fuel supply control device according to an embodiment of the present invention, and Fig. 2 shows the number of continuations of transient basic fuel injection amount calculation including predicted PBA calculation processing based on throttle valve opening and engine rotation speed. Flowchart of the control program for setting, FIG. 3 shows an example of the Ti map, FIG. 4 shows an example of the PBM map used in step S109 of the program in FIG. 2, and FIG. 5 shows the same step. S1
6A and 6B are diagrams showing an example of a table for calculating the number of continuations N used in steps S120 and S125, and FIG. 7 is a diagram showing an example of the KPAFM table used in steps S120 and S125. FIG. 4 is a diagram showing temporal changes in the intake pipe absolute pressure sensor output value, and the actual intake pipe absolute pressure value. 1... Internal combustion engine, 3'... Throttle valve, 4...
...Throttle valve opening, 5...Electronic control unit (ECU), 6...Fuel injection valve, 8...Intake pipe absolute pressure sensor, 10...Engine rotation speed sensor.
Claims (1)
渡状態を検出する検出手段と、定常状態において
、吸気管内圧力センサの出力値と機関回転数によ
つて基本燃料噴射量を演算する第１の演算手段と
、前記スロツトル弁開度と機関回転数によつて吸
気管内圧力を予測する予測手段と、前記検出手段
により検出された過度状態において、前記予測手
段による予測値と、機関回転数とによつて基本燃
料噴射量を演算する第２の演算手段と、前記過渡
状態から定常状態に移つたときから所定時間は、
前記第２の演算手段による基本燃料噴射量の演算
を継続する手段とを有する内燃機関の燃料噴射装
置において、前記過渡状態における前記スロツト
ル弁開度の変化履歴から前記所定時間を設定する
ことを特徴とする内燃機関の燃料噴射装置。 ２ 前記所定時間は前記過渡状態におけるスロツ
トル弁開度変化量の最大値によつて求められるこ
とを特徴とする請求項１記載の内燃機関の燃料噴
射装置。 ３ 前記所定時間は加速時と減速時で異なる値に
設定することを特徴とする請求項１記載の内燃機
関の燃料噴射装置。[Claims for Utility Model Registration] 1. Detection means for detecting a transient state of an internal combustion engine from the amount of change in throttle valve opening, and basic fuel injection based on the output value of an intake pipe pressure sensor and engine speed in a steady state. a first calculating means for calculating the amount; a predicting means for predicting the intake pipe internal pressure based on the throttle valve opening degree and the engine speed; and a predicted value by the predicting means in the transient state detected by the detecting means. and a second calculation means for calculating the basic fuel injection amount based on the engine rotation speed, and a predetermined period of time from the transition from the transient state to the steady state,
and means for continuing the calculation of the basic fuel injection amount by the second calculation means, characterized in that the predetermined time is set from a history of changes in the throttle valve opening in the transient state. Fuel injection system for internal combustion engines. 2. The fuel injection system for an internal combustion engine according to claim 1, wherein the predetermined time is determined based on a maximum value of a change in throttle valve opening in the transient state. 3. The fuel injection device for an internal combustion engine according to claim 1, wherein the predetermined time is set to different values during acceleration and deceleration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11070489U JPH0649875Y2 (en) | 1989-09-21 | 1989-09-21 | Fuel injection device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11070489U JPH0649875Y2 (en) | 1989-09-21 | 1989-09-21 | Fuel injection device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0349347U true JPH0349347U (en) | 1991-05-14 |
| JPH0649875Y2 JPH0649875Y2 (en) | 1994-12-14 |
Family
ID=31659226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11070489U Expired - Lifetime JPH0649875Y2 (en) | 1989-09-21 | 1989-09-21 | Fuel injection device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0649875Y2 (en) |
-
1989
- 1989-09-21 JP JP11070489U patent/JPH0649875Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0649875Y2 (en) | 1994-12-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |