A method for authorizing the use of a motor vehicle by a portable identification transmitter is provided. According to the method, a first vehicle antenna emits a first signal and a second vehicle antenna emits a second signal. An identification transmitter determines at least one of the spatial components of first and second electromagnetic fields, respectively, of the first and second signals. The identification transmitter transmits a measure or a value for the at least one spatial component of the first electromagnetic field, and a measure or a value for the at least one spatial component of the second electromagnetic field to the motor vehicle. A computer determines an angle between the spatial components of the first and second electromagnetic fields. The motor vehicle transmits an authorization signal for authorizing use of the motor vehicle only if the angle exceeds a predetermined threshold value.


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    Title :

    Authorizing the use of a motor vehicle


    Contributors:

    Publication date :

    2020-05-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte



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    Free access