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.
VERFAHREN ZUM VERIFIZIEREN EINES VORGEGEBENEN RÄUMLICHEN MAXIMALABSTANDS EINES FUNKSCHLÜSSELS BEZÜGLICH EINES KRAFTFAHRZEUGS SOWIE STEUERVORRICHTUNG, KRAFTFAHRZEUG UND FUNKSCHLÜSSEL
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
09.03.2022
Patent
Elektronische Ressource
Deutsch
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