Provided is a lock-up clutch control system for a vehicle, in which, when the accelerator pedal is released in a slip engagement mode, lock-up re-engagement with reduced engagement shock is performed, thereby improving fuel economy. A torque converter (4) having a lock-up clutch (3) is disposed between an engine (1) and a continuously variable transmission (6). The vehicle is provided with a coast lock-up control unit configured to bring the engine (1) in a fuel cut-off state when the accelerator pedal is released in a slip engagement mode in which a differential rotation is present in the lock-up clutch (3) with the accelerator pedal being depressed. Upon accelerator fool release operation, the coast lock-up control unit performs an engine torque control to synchronize engine rotation speed and turbine rotational speed, re-engages the lock-up clutch (3) in a rotation synchronization state, and, after the re-engagement, and performs fuel cut-off


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    Title :

    LOCK-UP CLUTCH CONTROL DEVICE FOR VEHICLE


    Additional title:

    LOCK-UP-KUPPLUNGSSTEUERUNGSVORRICHTUNG FÜR EIN FAHRZEUG
    DISPOSITIF DE COMMANDE D'EMBRAYAGE DE VERROUILLAGE POUR VÉHICULE


    Contributors:

    Publication date :

    2018-11-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F16H Getriebe , GEARING



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