An automatic transmission includes an input member, a planetary gear mechanism, a plurality of engagement mechanisms, an output member, a control unit, and a switching mechanism. The control unit is able to perform a backward preparation mode (step 3) which enables the rpm of an element fixed by the switching mechanism to be predetermined rpm or less by bringing the engagement mechanism into a connected state or a fixed state when the shift position is switched from a forward range to a backward range (step 1). The control unit switches the switching mechanism from a reverse-rotation preventing state to the fixed state (step 7) after the rpm of the element becomes the predetermined rpm or less (step 5) by performing the backward preparation mode.


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    Titel :

    Automatic transmission


    Beteiligte:

    Erscheinungsdatum :

    01.12.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    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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