Fuel injection quantity learning control method

燃料噴射量学習制御方法

Abstract

【課題】補機類の作動・非作動や冷却水温などの環境条件に影響されることなく、燃料噴射量の学習を行うことができる燃料噴射量学習制御方法を提供する。 【解決手段】アイドル噴射量基準値を基準として、内燃機関1の回転数が目標アイドル回転数となるように燃料噴射量学習値を求める燃料噴射量学習制御方法であって、上記内燃機関1で駆動される補機類3、4による負荷と、無負荷状態を基準とした上記補機類3、4の負荷による燃料噴射量の増分との関係を予め求め、上記燃料噴射量学習値を求めるときに、上記補機類3、4による負荷を測定すると共に、その測定された負荷に対する燃料噴射量の増分を上記予め求めた関係から導き、その増分で上記アイドル噴射量基準値を補正する学習補正機能を有するものである。 【選択図】図1
PROBLEM TO BE SOLVED: To provide a fuel injection quantity learning control method capable of learning fuel injection quantity without being influenced by environmental conditions such as operation and non-operation of accessories, and cooling water temperature. SOLUTION: This fuel injection quantity learning control method calculating fuel injection quantity learning value to set rotation speed of the internal combustion engine 1 to target idling rotation speed with setting idling injection quantity reference value as a reference includes a learning correction function in which a relation between increase of fuel injection quantity by load of accessories 3, 4 with setting a no-load condition as reference and load of the accessories 3, 4 driven by the internal combustion engine 1 is defined beforehand, load of the accessories 3, 4 is measured and increase of fuel injection quantity to the measured load is defined based on the relation defined beforehand when fuel injection quantity learning value is defined, and in which idling injection quantity reference value is corrected with the increase. COPYRIGHT: (C)2007,JPO&INPIT

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Cited By (3)

    Publication numberPublication dateAssigneeTitle
    JP-2009057853-AMarch 19, 2009Denso Corp, 株式会社デンソー内燃機関の燃料噴射制御装置及び内燃機関の燃料噴射量学習方法
    JP-2013024160-AFebruary 04, 2013Toyota Industries Corp, 株式会社豊田自動織機Engine control method
    US-8744677-B2June 03, 2014Toyota Jidosha Kabushiki KaishaRegenerative control system for a vehicle