JPS62184145U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の構成図、第２図は本考案に係
る電子制御燃料噴射装置の一実施例を示すシステ
ム図、第３図は同上実施例における燃料噴射量設
定制御を示すフローチヤート、第４図は同上実施
例におけるスロツトル弁開度変化率Δαと加重平
均係数Ｘとの関係を示すグラフ、第５図は同上実
施例における機関回転速度Ｎと加重平均係数Ｘと
の関係を示すグラフ、第６図は従来制御における
問題点を説明するためのタイムチヤートである。 １……回転速度センサ、２……エアフローメー
タ、３……スロツトル弁開度センサ、４……水温
センサ、５……コントロールユニツト、６……駆
動回路、７……燃料噴射弁。 FIG. 1 is a configuration diagram of the present invention, FIG. 2 is a system diagram showing an embodiment of an electronically controlled fuel injection device according to the present invention, and FIG. 3 is a flowchart showing fuel injection amount setting control in the same embodiment. FIG. 4 is a graph showing the relationship between the throttle valve opening change rate Δα and the weighted average coefficient X in the above embodiment, and FIG. 5 is a graph showing the relationship between the engine rotation speed N and the weighted average coefficient X in the above embodiment. , FIG. 6 is a time chart for explaining problems in conventional control. DESCRIPTION OF SYMBOLS 1...Rotational speed sensor, 2...Air flow meter, 3...Throttle valve opening sensor, 4...Water temperature sensor, 5...Control unit, 6...Drive circuit, 7...Fuel injection valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 機関の加速状態を検出する機関加速状態検出手
段と、機関の吸入空気流量、機関の吸気通路に介
装されたスロツトル弁の開度及び機関回転速度を
それぞれ検出する手段と、機関の加速状態が検出
されてから所定時間スロツトル弁開度と機関回転
速度との検出値に基づいて燃料噴射量を設定する
加速用燃料噴射量設定手段と、該加速用燃料噴射
量設定手段によつて設定された前回の燃料噴射量
と今回の燃料噴射量とを平均化処理して燃料噴射
量を補正設定する加速用燃料噴射量補正設定手段
と、前記加速用燃料噴射量設定手段による燃料噴
射量設定運転領域以外の運転領域において吸入空
気流量と機関回転速度との検出値に基づいて燃料
噴射量を設定する主燃料噴射量設定手段と、前記
加速用燃料噴射量補正設定手段によつて補正設定
された燃料噴射量若しくは前記主燃料噴射量設定
手段によつて設定された燃料噴射量に応じて燃料
噴射弁を駆動制御する駆動制御手段と、を備えて
なる内燃機関の電子制御燃料噴射装置。 An engine acceleration state detection means for detecting the acceleration state of the engine, a means for detecting the intake air flow rate of the engine, an opening degree of a throttle valve interposed in the intake passage of the engine, and an engine rotation speed, and a means for detecting the engine acceleration state. an acceleration fuel injection amount setting means for setting the fuel injection amount based on the detected values of the throttle valve opening degree and the engine rotational speed for a predetermined period of time after the detection; an acceleration fuel injection amount correction setting means for correcting and setting the fuel injection amount by averaging the previous fuel injection amount and the current fuel injection amount; and a fuel injection amount setting operation range by the acceleration fuel injection amount setting means. main fuel injection amount setting means for setting the fuel injection amount based on detected values of the intake air flow rate and engine rotational speed in an operating range other than the above, and the fuel corrected and set by the acceleration fuel injection amount correction setting means. An electronically controlled fuel injection device for an internal combustion engine, comprising: drive control means for driving and controlling a fuel injection valve according to an injection amount or a fuel injection amount set by the main fuel injection amount setting means.