A secure vehicle access system (500) comprises a vehicle (510) and a key (520) associated with the vehicle (510). The key (520) comprises: a radio frequency, RF, key transceiver (534) configured to: broadcast at least one signal; and listen for an acknowledgement message from the vehicle (510). The vehicle (510) comprises: a radio frequency, RF, vehicle transceiver (517) configured to: listen for the at least one broadcast signal from the key (520); and in response thereto, transmit an acknowledgement message back to the key (520) to establish a communication link between the vehicle (510) and the key (520). The key (520) further comprises a ranging circuit (554) configured to perform a distance determination between the vehicle (510) and the key (520), following the establishment of the communication link, to determine whether to allow access to the vehicle (510).
SECURE VEHICLE ACCESS SYSTEM, KEY, VEHICLE AND METHOD THEREFOR
SICHERES VENTILZUGANGSSYSTEM FÜR FAHRZEUG, SCHLÜSSEL, FAHRZEUG UND VERFAHREN DAFÜR
SYSTÈME D'ACCÈS SÉCURISÉ DE VÉHICULE, CLÉ, VÉHICULE ET PROCÉDÉ ASSOCIÉ
2019-11-20
Patent
Electronic Resource
English
SECURE VEHICLE ACCESS SYSTEM, KEY, VEHICLE AND METHOD THEREFOR
European Patent Office | 2018
|Secure vehicle access system, key, vehicle and method therefor
European Patent Office | 2019
|