VEHICLE CONTROL UNIT

PROBLEM TO BE SOLVED: To make it possible to improve the learning accuracy of a lock-up clutch pressure learning control and to suppress a reduction in the learning frequency of the lock-up clutch pressure learning control.SOLUTION: At a time of executing a L/U clutch pressure learning control, the learning accuracy of the L/U clutch pressure leaning control can be improved by prohibiting the engagement of an L/U clutch in a running state in which an excessive variation in an engine revolving speed Ne due to gearshift of a continuously variable transmission tends to occur during learning. Furthermore, at the time of executing the L/U clutch pressure learning control, it is possible to suppress a reduction in the learning frequency of the L/U clutch pressure learning control not only by simply prohibiting the engagement of the L/U clutch in the running state in which the excessive variation in the engine revolving speed Ne due to the gearshift by the continuously variable transmission but also by engaging the L/U clutch after the running state transitions to a running state in which it is difficult for the excessive variation to occur during the learning. 【課題】ロックアップクラッチ圧学習制御の学習精度を向上することができ、更に、ロックアップクラッチ圧学習制御の学習頻度の低下を抑制する。【解決手段】Ｌ/Ｕクラッチ圧学習制御を実行する際には、無段変速機の変速によるエンジン回転速度Ｎeの過度な変動が学習中に生じ易い走行状態ではＬ/Ｕクラッチの係合を禁止することで、Ｌ/Ｕクラッチ圧学習制御の学習精度を向上することができる。加えて、Ｌ/Ｕクラッチ圧学習制御を実行する際には、無段変速機の変速によるエンジン回転速度の過度な変動が学習中に生じ易い走行状態において単にＬ/Ｕクラッチの係合を禁止するだけでなく、その過度な変動が学習中に生じ難い走行状態となった後にＬ/Ｕクラッチを係合することで、Ｌ/Ｕクラッチ圧学習制御の学習頻度の低下を抑制することができる。【選択図】図６