JPH01119852U - - Google Patents

Description

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

第１図は本考案のクレーム対応図、第２図は本
考案の一実施例を示す構成図、第３図は同上のフ
ローチヤート、第４図は同上の作用を説明するた
めの図、第５図〜第７図は従来例及び実施例の作
用を説明するための特性図、第８図は従来例の欠
点を説明するための図である。 １…機関、４…エアフローメータ、５…燃料噴
射弁、６…制御装置、７…スロツトル開度センサ
、８…回転速度センサ。 Fig. 1 is a diagram corresponding to the claims of the present invention, Fig. 2 is a configuration diagram showing an embodiment of the present invention, Fig. 3 is a flowchart of the same, Fig. 4 is a diagram for explaining the operation of the above, 5 to 7 are characteristic diagrams for explaining the effects of the conventional example and the embodiment, and FIG. 8 is a diagram for explaining the drawbacks of the conventional example. DESCRIPTION OF SYMBOLS 1... Engine, 4... Air flow meter, 5... Fuel injection valve, 6... Control device, 7... Throttle opening sensor, 8... Rotational speed sensor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 機関運転状態に応じて燃料噴射量を設定する燃
料噴射量設定手段と、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、
を備える内燃機関の電子制御燃料噴射装置におい
て、減速運転状態を検出する減速運転状態検出手
段と、機関負荷検出手段と、減速運転状態に応じ
て前記燃料噴射量を減量補正する減速減量係数若
しくは減速減量燃料量を設定する減速減量設定手
段と、減速運転開始時付近の機関負荷と減速運転
終了付近の機関負荷との差に応じて、前記減速減
量係数若しくは減速減量燃料量を減少させる減少
率若しくは減量減少燃料量を設定する減量減少設
定手段と、減速運転中には前記減速減量係数若し
くは減速減量燃料量により前記燃料噴射量を減量
補正し、減速運転終了時付近からは前記減速減量
係数若しくは減速減量燃料量と前記減少率若しく
は減量減少燃料量とにより前記燃料噴射量を減量
補正する減速減量補正手段と、を備えたことを特
徴とする内燃機関の電子制御燃料噴射装置。 a fuel injection amount setting means for setting a fuel injection amount according to an engine operating state; a drive control means for driving and controlling a fuel injection valve according to the set fuel injection amount;
An electronically controlled fuel injection device for an internal combustion engine, comprising: a deceleration operation state detection means for detecting a deceleration operation state; an engine load detection means; and a deceleration reduction coefficient or deceleration for reducing and correcting the fuel injection amount according to the deceleration operation state. a deceleration amount setting means for setting a deceleration amount of fuel, and a reduction rate or rate for reducing the deceleration amount amount coefficient or deceleration amount of fuel according to the difference between the engine load around the start of deceleration operation and the engine load around the end of deceleration operation; a reduction reduction setting means for setting a reduction reduction fuel amount, and a reduction correction means for reducing the fuel injection amount by the deceleration reduction coefficient or the deceleration reduction fuel amount during deceleration operation, and from around the end of deceleration operation, the reduction correction means adjusts the deceleration reduction coefficient or the deceleration reduction amount; An electronically controlled fuel injection device for an internal combustion engine, comprising: a deceleration reduction correction means for reducing the fuel injection amount based on the reduction fuel amount and the reduction rate or the reduction reduction fuel amount.