JPS63190544U - - Google Patents
Info
- Publication number
- JPS63190544U JPS63190544U JP8037587U JP8037587U JPS63190544U JP S63190544 U JPS63190544 U JP S63190544U JP 8037587 U JP8037587 U JP 8037587U JP 8037587 U JP8037587 U JP 8037587U JP S63190544 U JPS63190544 U JP S63190544U
- Authority
- JP
- Japan
- Prior art keywords
- variation
- fuel injection
- injection
- amount
- engine
- 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
- 238000002347 injection Methods 0.000 claims description 16
- 239000007924 injection Substances 0.000 claims description 16
- 239000000446 fuel Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
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2〜9図は本
考案の一実施例を示す図であり、第2図はそのブ
ロツク構成図、第3図はその燃料噴射開始時期の
テーブルマツプ、第4図はその燃料噴射開始時期
のテーブルマツプのデータ領域を示す図、第5図
はその燃料噴射開始時期を演算するプログラムを
示すフローチヤート、第6図はその基本パルス平
均周期を演算するプログラムを示すフローチヤー
ト、第7図はエンジン回転数変動時の作用を説明
するための特性図、第8図はその基本パルス周期
の変動状態を示す特性図、第9図はその燃料噴射
開始時期を補正するプログラムを示すフローチヤ
ートである。
6……運転状態検出手段、15……インジエク
タ、20……コントロールユニツト(変動量検出
手段、噴射量演算手段、補正量演算手段、開始時
期設定手段、噴射指令手段)。
Fig. 1 is a basic conceptual diagram of the present invention, Figs. 2 to 9 are diagrams showing an embodiment of the present invention, Fig. 2 is a block diagram thereof, and Fig. 3 is a table map of the fuel injection start timing. , Fig. 4 is a diagram showing the data area of the table map of the fuel injection start timing, Fig. 5 is a flowchart showing a program for calculating the fuel injection start timing, and Fig. 6 is a diagram showing the calculation of the basic pulse average period. A flowchart showing the program, Fig. 7 is a characteristic diagram to explain the effect when the engine speed changes, Fig. 8 is a characteristic diagram showing the fluctuation state of the basic pulse period, and Fig. 9 is the fuel injection start timing. This is a flowchart showing a program for correcting. 6... Operating state detection means, 15... Injector, 20... Control unit (variation amount detection means, injection amount calculation means, correction amount calculation means, start timing setting means, injection commanding means).
Claims (1)
出手段と、 (b) 燃料の噴射周期に変動を与える変動パラメ
ータを検出する変動量検出手段と、 (c) エンジンの運転状態に基づいて所定の演算
周期毎に燃料噴射量を噴射時間として演算する噴
射量演算手段と、 (d) 変動量検出手段の出力から変動パラメータ
の変動量を求め、該変動量に基づいて燃料噴射の
開始時期を補正する変動補正量を演算する補正量
演算手段と、 (e) 前記燃料噴射量およびエンジン回転数に基
づいて燃料の噴射開始時期を求め、これを前記変
動補正量に応じて補正する開始時期設定手段と、 (f) 開始時期設定手段により決定されたタイミ
ングで燃料噴射の開始を指令し、前記噴射時間が
経過すると燃料噴射の終了を指令する噴射指令手
段と、 (g) 噴射指令手段の出力に基づいて燃料を噴射
する噴射手段と、 を備えたことを特徴とする内燃機関の燃料噴射装
置。[Scope of Claim for Utility Model Registration] (a) Operating state detection means for detecting the operating state of the engine; (b) Variation amount detection means for detecting a variation parameter that causes variation in the fuel injection cycle; (c) Engine (d) determining the variation amount of the variation parameter from the output of the variation detection means, and determining the variation amount of the variation parameter based on the variation amount; (e) determining a fuel injection start timing based on the fuel injection amount and engine rotational speed, and applying this to the variation correction amount; (f) injection command means that commands the start of fuel injection at the timing determined by the start timing setting means and commands the end of fuel injection when the injection time has elapsed; g) A fuel injection device for an internal combustion engine, comprising: an injection means for injecting fuel based on the output of the injection command means;
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8037587U JPS63190544U (en) | 1987-05-27 | 1987-05-27 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8037587U JPS63190544U (en) | 1987-05-27 | 1987-05-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63190544U true JPS63190544U (en) | 1988-12-08 |
Family
ID=30931124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8037587U Pending JPS63190544U (en) | 1987-05-27 | 1987-05-27 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63190544U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03258957A (en) * | 1990-03-07 | 1991-11-19 | Hitachi Ltd | Engine control device |
-
1987
- 1987-05-27 JP JP8037587U patent/JPS63190544U/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03258957A (en) * | 1990-03-07 | 1991-11-19 | Hitachi Ltd | Engine control device |
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