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 detecting an object to be charged by an induction-charging device including at least one transmitting coil. The method includes transmission, by the at least one coil, of an electrical pulse the value of which is within a window of values predetermined using test receivers, and the object to be charged generating a communication signal in response. The method including, if charging conditions are favorable, the modulation of the value of the electrical pulse outside of the window of predetermined values according to the presence and/or the value of the communication signal, in order to detect the presence of an object to be charged.

Abstract: A method for securely accessing a motor vehicle whose opening elements are locked and unlocked through wireless communication between a portable access device and an access control module on board the vehicle. The method includes authenticating the device with the access control module, unlocking the vehicle when the device has been authenticated, periodically transmitting, by way of the access control module, an interrogation signal into at least part of the passenger compartment of the vehicle intended for the device following unlocking of the vehicle, upon each reception by the device of said interrogation signal, triggering a first timeout the duration of which is greater than the transmission period of the interrogation signal, and deactivating the device when the first timeout has expired and the immobile state of the device is detected.

Abstract: A method for securely accessing a motor vehicle whose opening elements are locked and unlocked through wireless communication between a portable access device and an access control module on board the vehicle. The method includes authenticating the device with the access control module, unlocking the vehicle when the device has been authenticated, periodically transmitting, by way of the access control module, an interrogation signal into at least part of the passenger compartment of the vehicle intended for the device following unlocking of the vehicle, upon each reception by the device of said interrogation signal, triggering a first timeout the duration of which is greater than the transmission period of the interrogation signal, and deactivating the device when the first timeout has expired and the immobile state of the device is detected.