When the control unit monitoring the dual clutch transmission detects input signals from the driver and/or the prime mover and transmission indicating that the free-wheeling mode should be exited, then the transmission is controlled to reconnect the prime mover and the driving wheels. According to the invention, a rapid reconnection of the prime mover to the driven wheels is achieved by engaging the second, normally open clutch unit. Prior to engagement, the control unit can select a suitable gear depending on the input signals from the driver and/or the prime mover. As none of the first set of gears connecting the first input shaft to the driving wheels in the first transmission mechanism is engaged, the first clutch unit can be disengaged during or after engagement of the second clutch unit.


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    Title :

    Method for controlling free-wheeling in a dual clutch transmission in a vehicle


    Contributors:

    Publication date :

    2018-12-04


    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 / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / F16H Getriebe , GEARING



    METHOD FOR CONTROLLING FREE-WHEELING IN A DUAL CLUTCH TRANSMISSION IN A VEHICLE

    BERGSTRÖM KLAS | European Patent Office | 2017

    Free access

    METHOD FOR CONTROLLING FREE-WHEELING IN A DUAL CLUTCH TRANSMISSION IN A VEHICLE

    BERGSTRÖM KLAS | European Patent Office | 2018

    Free access


    Free-Wheeling

    Roos, Delmar G. / James, William S. | SAE Technical Papers | 1931


    Free-Wheeling

    Roos, D.G. / James, W.S. | Engineering Index Backfile | 1931