CONTROLLER FOR VEHICLE

To provide a controller for vehicle capable of suppressing fuel economy from decreasing while improving engine stall resistance.SOLUTION: An electronic controller 90 for a vehicle 10 that executes, once it is determined that an engine stall may occur during execution of fuel cutting, fuel recovery a...

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Bibliographic Details
Main Author HISADA MASAYUKI
Format Patent
LanguageEnglish
Japanese
Published 27.10.2022
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Summary:To provide a controller for vehicle capable of suppressing fuel economy from decreasing while improving engine stall resistance.SOLUTION: An electronic controller 90 for a vehicle 10 that executes, once it is determined that an engine stall may occur during execution of fuel cutting, fuel recovery after starting release control to completely release a lock-up clutch 18 of a torque converter 18. comprises: a setting part 90b which sets execution timing of the fuel recovery to a predetermined first point tx of time in advance; and a correction part 90e which corrects the execution timing to a predetermined second point ty of time earlier than the predetermined first point tx of time when it is determined that an engine rotating speed decrease quantity ΔNe in a predetermined period T after the setting of the execution timing by the setting part 90b is equal to or larger than a predetermined decrease quantity ΔNe_jdg.SELECTED DRAWING: Figure 1 【課題】耐エンジンストール性を向上させつつ燃費の低下を抑制できる車両の制御装置を提供する。【解決手段】フューエルカットの実行中にエンジンストールが発生するおそれがあると判定されると、トルクコンバータ18のロックアップクラッチ18cを完全解放状態にする解放制御を開始した後にフューエルリカバリーを実行する、車両10の電子制御装置90は、(a)フューエルリカバリーの実行タイミングを所定の第1時点txに予め設定する設定部90bと、(b)設定部90bによる実行タイミングの設定後の所定期間Tにおけるエンジン回転速度低下量ΔNeが所定の低下量ΔNe_jdg以上であると判定された場合、実行タイミングを所定の第1時点txよりも早い所定の第2時点tyに補正する補正部90eと、を備える。【選択図】図1
Bibliography:Application Number: JP20210070009