A tire slip state determination method includes: detecting rotation fluctuations of a power transmission member and a wheel body of a wheel; determining, based on an amplitude ratio of a rotation fluctuation amplitude of the wheel body to a rotation fluctuation amplitude of the power transmission member and a phase delay of the rotation fluctuation of the wheel body relative to the rotation fluctuation of the power transmission member, whether a vibration mode of the wheel body and the tire is an elastic slip mode or a sliding slip mode; and determining that the tire is in the sliding slip state when the vibration mode is the sliding slip mode. The amplitude ratio and the phase delay are calculated by using, as a tire driving radius, an effective rolling radius in a region in which a relationship between a dynamic load radius and the effective rolling radius is linear.


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    Titel :

    Tire slip state determination method


    Beteiligte:
    YAGASAKI TORU (Autor:in)

    Erscheinungsdatum :

    31.12.2024


    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 / G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte



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