Mercedes-benz Group Ag

Özgür Mutlu

Matthias Reinhardt

Konrad Betz

A method involves monitoring an outer zone, which adjoins an inner zone directly surrounding the motor vehicle, by a monitoring device of the motor vehicle, such that a current position of the user relative to the motor vehicle is determined by the monitoring device if the monitoring shows the user is in the outer zone. A close proximity monitoring device of the motor vehicle scanning the inner zone is activated if the monitoring shows the user is crossing from the outer zone into the inner zone, such that the current position of the user relative to the motor vehicle is only determined by the close proximity monitoring device if the user is located in the inner zone. At least one of the points of access to the vehicle interior of the motor vehicle is released for the user after the monitoring has shown that they are in the inner zone.

Method and motor vehicle

A method for determining the position of a mobile electronic identification device relative to a motor vehicle that can be unlocked by the identification device is provided. In a step a) at least one signal is transmitted from the motor vehicle to the identification device via the first communication connection, the signal containing the transmission time of the at least one signal. In a step b) the transmission time and reception time of the at least one signal received by the identification device is stored in the identification device. In a step c) a data packet is transmitted from the identification device to the motor vehicle via the second communication connection, said data packet containing the stored transmission and reception times of the signals transmitted in step a).

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Stuttgart, Germany

Özgür Mutlu