A method for calibrating a radio-based keyless access system of a transportation vehicle, an access system, and a corresponding transportation vehicle. Based on a measured field strength of an LF field, it is determined whether the signal transmitter is located at most at a specified distance from the transportation vehicle. A second transmission device emits a higher-frequency calibration signal in response to which the signal transmitter transmits a response signal back to the transportation vehicle. A reference distance from the signal transmitter to the transportation vehicle is automatically determined from the propagation time of the calibration signal and the response signal. The measured LF field strength-based determination of whether the signal transmitter is located at most at a specified distance from the transportation vehicle is then calibrated automatically based on the determined reference distance.


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    Title :

    VERFAHREN ZUM KALIBRIEREN EINES FUNKBASIERTEN SCHLÜSSELLOSEN ZUGANGSSYSTEMS EINES KRAFTFAHRZEUGS, ZUGANGSSYSTEM UND KRAFTFAHRZEUG


    Additional title:

    METHOD FOR CALIBRATING A RADIO-BASED KEYLESS ACCESS SYSTEM OF A MOTOR VEHICLE, ACCESS SYSTEM, AND MOTOR VEHICLE
    PROCÉDÉ D'ÉTALONNAGE D'UN SYSTÈME D'ACCÈS SANS CLÉ À BASE RADIO D'UN VÉHICULE À MOTEUR, SYSTÈME D'ACCÈS ET VÉHICULE À MOTEUR


    Contributors:

    Publication date :

    2025-03-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

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