The invention relates to a method for verifying a prescribed maximum physical distance (MAX) of a radio key (11) in relation to a motor vehicle (10), wherein a control apparatus (26) uses a radio device (21) of the motor vehicle (10) to transmit at least one electromagnetic radio signal to the radio key (11) and subsequently receives a respective electromagnetic response signal and, for each radio signal, takes the radio signal and the associated response signal as a basis in each case for using a signal propagation delay measurement to ascertain a respective signal propagation delay and checks whether the signal propagation delay fails to satisfy a predetermined propagation delay criterion (27), and signals a transgression above the propagation delay (28) when the propagation delay criterion (27) is not satisfied.


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    Title :

    VERFAHREN ZUM VERIFIZIEREN EINES VORGEGEBENEN RÄUMLICHEN MAXIMALABSTANDS EINES FUNKSCHLÜSSELS BEZÜGLICH EINES KRAFTFAHRZEUGS SOWIE STEUERVORRICHTUNG, KRAFTFAHRZEUG UND FUNKSCHLÜSSEL


    Additional title:

    METHOD FOR VERIFYING A PREDEFINED MAXIMUM SPATIAL DISTANCE OF A RADIO KEY IN RELATION TO A MOTOR VEHICLE, AS WELL AS CONTROL DEVICE, MOTOR VEHICLE AND RADIO KEY
    PROCÉDÉ POUR VÉRIFIER UNE DISTANCE SPATIALE MAXIMALE PRÉDÉFINIE ENTRE UNE CLÉ À RADIOCOMMANDE ET UN VÉHICULE AUTOMOBILE, DISPOSITIF DE COMMANDE, VÉHICULE AUTOMOBILE ET CLÉ À RADIOCOMMANDE


    Contributors:

    Publication date :

    2022-03-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte