Control techniques for an electrically all-wheel drive (eAWD) hybrid vehicle involve determining whether to transition from an electric-only mode to a parallel mode based on a driver torque request or a state of charge (SOC) of a battery system. During the electric-only mode, the electric motor is operated such that a torque reserve is maintained. When the driver torque request exceeds a maximum drive torque that the electric motor is capable of generating, the electric-only to parallel mode transition is performed. This involves the electric motor depleting the torque reserve to provide an expected acceleration feel for the driver while engine and transmission speeds are synchronized. When the SOC of the battery system falls below an SOC threshold, the drive torque of the electric motor is decreased to zero upon engine/transmission speed synchronization such that the battery system can be recharged.


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    Titel :

    MODE TRANSITION CONTROL TECHNIQUES FOR AN ELECTRICALLY ALL-WHEEL DRIVE HYBRID VEHICLE


    Beteiligte:
    ZHOU YUXING (Autor:in)

    Erscheinungsdatum :

    30.01.2020


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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



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