Device for operating a motor vehicle without a key

A device according to the present invention is proposed for the keyless operation of a motor vehicle (8), having a transponder (14) that sends a code to at least one transceiver (12). A control unit (10) compares the code to an expected code, and upon agreement, enables at least one component (16, 1...

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Bibliographic Details
Main Authors KARL-HEINZ KAISER, ELMAR GIEHLER, ACHIM WACH
Format Patent
LanguageEnglish
Published 11.06.2002
Edition7
Subjects
PERFORMING OPERATIONS
TRANSPORTING
VEHICLES IN GENERAL
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Summary:A device according to the present invention is proposed for the keyless operation of a motor vehicle (8), having a transponder (14) that sends a code to at least one transceiver (12). A control unit (10) compares the code to an expected code, and upon agreement, enables at least one component (16, 18) necessary for the operation of the motor vehicle (8), and deactivates it in the shutdown state of the motor vehicle (8). A timer (T2, T3) is provided, whose output value is compared to a specifiable time duration (t2, t3), the at least one component (16, 18) necessary for the operation of the motor vehicle (8) being deactivated when the output value of the timer (T2, T3) exceeds the specifiable time duration (t2, t3).
Bibliography:Application Number: AU2786002