JPH01141342U - - Google Patents
Info
- Publication number
- JPH01141342U JPH01141342U JP1988037319U JP3731988U JPH01141342U JP H01141342 U JPH01141342 U JP H01141342U JP 1988037319 U JP1988037319 U JP 1988037319U JP 3731988 U JP3731988 U JP 3731988U JP H01141342 U JPH01141342 U JP H01141342U
- Authority
- JP
- Japan
- Prior art keywords
- amount
- fuel injection
- throttle valve
- air
- calculating
- 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 10
- 238000010586 diagram Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/3094—Controlling fuel injection the fuel injection being effected by at least two different injectors, e.g. one in the intake manifold and one in the cylinder
Description
第１図はこの考案のクレーム対応図、第２図は
この考案の一実施例の制御系のシステム図、第３
図と第４図はこの実施例の制御動作を示す流れ図
、第５図は加速時の吸入空気量の変化特性を示す
波形図、第６図はこの実施例の分担割合ＫＤＩＳ
の内容を示す特性図、第７図は従来例のシステム
図である。
２……スロツトル弁、３……吸気マニホールド
、４……コレクタ部、５……分岐部、６……吸気
ポート部、７……シリンダ、１１……エアフロー
メータ、１２……クランク角センサ、１３……水
温センサ、２０……第１の燃料噴射弁、３１……
第２の燃料噴射弁、３２……エンジン回転数セン
サ、３３……スロツトル弁部空気量センサ、３４
……スロツトル弁部基本噴射量算出手段、３５…
…シリンダ流入空気量算出手段、３６……ポート
部基本噴射量算出手段、３７……スロツトル弁部
燃料噴射量算出手段、３８……ポート部燃料噴射
量算出手段、３９，４０……出力手段、４１……
コントロールユニツト。
Fig. 1 is a complaint correspondence diagram of this invention, Fig. 2 is a system diagram of a control system of an embodiment of this invention, and Fig. 3 is a system diagram of a control system of an embodiment of this invention.
4 and 4 are flowcharts showing the control operation of this embodiment, FIG. 5 is a waveform chart showing the change characteristics of the intake air amount during acceleration, and FIG. 6 is the sharing ratio KDIS of this embodiment.
FIG. 7 is a system diagram of a conventional example. 2... Throttle valve, 3... Intake manifold, 4... Collector section, 5... Branch section, 6... Intake port section, 7... Cylinder, 11... Air flow meter, 12... Crank angle sensor, 13 ...Water temperature sensor, 20...First fuel injection valve, 31...
Second fuel injection valve, 32...Engine speed sensor, 33...Throttle valve air amount sensor, 34
...Throttle valve unit basic injection amount calculation means, 35...
... Cylinder inflow air amount calculation means, 36 ... Port section basic injection amount calculation means, 37 ... Throttle valve section fuel injection amount calculation means, 38 ... Port section fuel injection amount calculation means, 39, 40 ... Output means, 41...
control unit.
Claims (1)
、スロツトル弁部に設けられる第２の燃料噴射弁
と、エンジン回転数に応じた信号を出力するセン
サと、スロツトル弁部空気量に応じた信号を出力
するセンサと、スロツトル弁部空気量とエンジン
回転数に応じてスロツトル弁部での基本噴射量を
算出する手段と、スロツトル弁部空気量の信号に
なまし処理をすることによりシリンダ流入空気量
を算出する手段と、シリンダ流入空気量とエンジ
ン回転数に応じて吸気ポート部での基本噴射量を
算出する手段と、それぞれ算出された基本噴射量
と所定の分担割合とから前記一対の燃料噴射弁が
分担すべき燃料噴射量を算出する手段と、算出さ
れた燃料噴射量を対応する燃料噴射弁に出力する
手段とを設けたことを特徴とするエンジンの燃料
噴射供給装置。 A first fuel injection valve provided in the intake port portion, a second fuel injection valve provided in the throttle valve portion, a sensor that outputs a signal corresponding to the engine rotation speed, and a signal corresponding to the throttle valve air amount. A sensor that outputs the amount of air flowing into the cylinder, a means for calculating the basic injection amount at the throttle valve according to the amount of air in the throttle valve and the engine speed, and a means for calculating the basic injection amount at the throttle valve according to the amount of air in the throttle valve and the engine speed. means for calculating the basic injection amount at the intake port according to the cylinder inflow air amount and the engine rotational speed; 1. A fuel injection supply device for an engine, comprising means for calculating a fuel injection amount to be shared by an injection valve, and means for outputting the calculated fuel injection amount to a corresponding fuel injection valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988037319U JPH01141342U (en) | 1988-03-22 | 1988-03-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988037319U JPH01141342U (en) | 1988-03-22 | 1988-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01141342U true JPH01141342U (en) | 1989-09-28 |
Family
ID=31263902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988037319U Pending JPH01141342U (en) | 1988-03-22 | 1988-03-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01141342U (en) |
-
1988
- 1988-03-22 JP JP1988037319U patent/JPH01141342U/ja active Pending
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