Abstract: A method for managing location of a user device in a passenger compartment of a vehicle, including in particular the steps of calculating the distance of the user device in relation to each of the transceivers from the received response signals, calculating, for each transceiver, the difference between the distance between the transceiver and the user device that has been calculated and the distance between the transceiver and the user device that was previously used to determine the position of the user device in the passenger compartment, and, when one of the differences calculated in relation to one of the transceivers is erroneous by being higher than a predetermined “inconsistency threshold”, calculating the positional variation of the user device from the received response signals by excluding the response signal received for the transceiver.

Abstract: A method for locating a user device in a sub-zone of a main zone defined with respect to a vehicle, especially including detecting the user device in a first sub-zone, locating the user device in the first sub-zone, keeping locating the user device in the first sub-zone for as long as the user device is detected in the first sub-zone, detecting the user device in a second sub-zone, and locating the user device in the second sub-zone when the user device is detected solely in the second sub-zone.

Abstract: A method for temporarily inhibiting remote activation of a function present in a motor vehicle, the activation taking place between an activation device carried by a person authorized to perform this activation and an activation module present in the vehicle through the transmission, reception and measurement of electromagnetic waves between the activation device and the activation module, the inhibition taking place after a predetermined number of activation attempts that are unsuccessful as they are considered to be located outside of a detection zone. The respective mathematical positions of the unsuccessful activation attempts are stored, and only activation attempts whose position differs by a certain threshold from at least one position of an already stored unsuccessful activation attempt are taken into account as unsuccessful activation attempts.

Abstract: A method for temporarily inhibiting remote activation of a function present in a motor vehicle, the activation taking place between an activation device carried by a person authorized to perform this activation and an activation module present in the vehicle through the transmission, reception and measurement of electromagnetic waves between the activation device and the activation module, the inhibition taking place after a predetermined number of activation attempts that are unsuccessful as they are considered to be located outside of a detection zone. The respective mathematical positions of the unsuccessful activation attempts are stored, and only activation attempts whose position differs by a certain threshold from at least one position of an already stored unsuccessful activation attempt are taken into account as unsuccessful activation attempts.