ACCESS CONTROL METHOD FOR MOTOR VEHICLES

The invention relates to a method for controlling a keyless access to a motor vehicle. A low-frequency (LF) electromagnetic wake-up signal is transmitted using a first transmitting device on the vehicle side and received using an ID transmitter at a distance from the vehicle. Furthermore, a low-freq...

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Bibliographic Details
Main Authors VALENZUELA, Edwin Garcia, CLEMENS, Peter
Format Patent
LanguageEnglish
French
German
Published 22.02.2017
Subjects
ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE
CHECKING-DEVICES
GENERATING RANDOM NUMBERS
PERFORMING OPERATIONS
PHYSICS
REGISTERING OR INDICATING THE WORKING OF MACHINES
TIME OR ATTENDANCE REGISTERS
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
VOTING OR LOTTERY APPARATUS
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Summary:The invention relates to a method for controlling a keyless access to a motor vehicle. A low-frequency (LF) electromagnetic wake-up signal is transmitted using a first transmitting device on the vehicle side and received using an ID transmitter at a distance from the vehicle. Furthermore, a low-frequency electromagnetic distance determining signal is transmitted by the transmitting device on the vehicle side, said distance determining signal likewise being received using the ID transmitter. At least one field strength determination for the received distance determining signal is carried out in the ID transmitter, a bidirectional high-frequency communication (HF) being carried out between a transmitting and receiving device on the vehicle side and the ID transmitter. The low-frequency signals are received and the bidirectional high-frequency communication is carried out simultaneously by means of a system that is capable of multitasking and is located in the ID transmitter.
Bibliography:Application Number: EP20110801639