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1. (WO2018077516) METHOD FOR ACCESS CONTROL TO FUNCTIONS OF A MOTOR VEHICLE

Pub. No.:    WO/2018/077516    International Application No.:    PCT/EP2017/072252
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Wed Sep 06 01:59:59 CEST 2017
IPC: B60R 25/20
Applicants: HUF HÜLSBECK & FÜRST GMBH & CO. KG
Inventors: SCHINDLER, Mirko
Title: METHOD FOR ACCESS CONTROL TO FUNCTIONS OF A MOTOR VEHICLE
Abstract:
A motor vehicle (1) has high-frequency transceiver stations (3a, 3b, 3c) for access control to functions of said motor vehicle (1). A portable access device (6a; 6b) is designed to exchange data with the high-frequency transceiver stations (3a, 3b, 3c), and at least one sensor device (5) detecting activation is arranged on the vehicle. When the sensor device (5) is activated, a signal connection (7a, 7b, 7c; 8a, 8b, 8c) is established between the radio-frequency transceiver stations (3a, 3b, 3c) and the portable access devices (6a; 6b). In this, a signal parameter of the signal connection is detected and is stored as a reference signal parameter. During subsequent signal connections, the current value of the signal parameter is determined, and a position of the portable access device (6a; 6b) is determined on the basis of the value of the further signal parameter and as a function of the reference signal parameter. Subsequently, a function of the motor vehicle (1) is enabled or disabled depending on the position.