Abstract: A method for signaling the theft of a wheel of a motor vehicle. The vehicle includes a plurality of wheels and a computer. At least one of the wheels includes a sensor. The method includes, for the at least one wheel, the steps of measuring at least one value for the internal pressure of the tire of the wheel, detecting that the vehicle has been raised if the absolute value of the difference between the at least one measured internal pressure value and a predetermined reference internal pressure value is greater than a predetermined pressure difference threshold when it is detected the vehicle has been raised, detecting the detachment of the wheel when it is detected that the wheel has become detached, and signaling the theft of the wheel.

Abstract: A method for signaling the theft of a wheel of a motor vehicle. The vehicle includes a plurality of wheels and a computer. At least one of the wheels includes a sensor. The method includes, for the at least one wheel, the steps of measuring at least one value for the internal pressure of the tire of the wheel, detecting that the vehicle has been raised if the absolute value of the difference between the at least one measured internal pressure value and a predetermined reference internal pressure value is greater than a predetermined pressure difference threshold when it is detected the vehicle has been raised, detecting the detachment of the wheel when it is detected that the wheel has become detached, and signaling the theft of the wheel.

Abstract: A method for communication of a plurality of wheel units with one another and with a device for remotely monitoring and/or controlling the wheel units, the wheel units measuring a pressure value of a wheel of a motor vehicle as parameter(s). The units are identified beforehand and each wheel unit may identify the other wheel units, the communication taking place in accordance with a communication standard allowing a bidirectional data exchange. A hub wheel unit storing the pressure values measured by each of the wheel units is selected at least temporarily, the other units being peripheral. The hub unit sends a signaling frame in the direction of the peripheral units, received in a peripheral unit through scanning. The pressure values are communicated between the wheel units and a device solely via the hub unit.

Abstract: A method for locating the position of each wheelset of a motor vehicle. Each wheelset including at least one wheel equipped with an electronic unit including at least one sensor to measure, for the wheel, the extent of the contact patch via which the tire is in contact with the ground, and a transmitter transmitting data regarding the extent of the tire contact patch to a control unit. The motor vehicle includes a load sensor for each of the wheelsets that measures and delivers to the control unit a value for the load supported by the associated wheelset. The method employing, on the one hand, data originating from a sensor able to determine the extent of the contact patch via which a tire is in contact with the ground and, on the other hand, a load sensor able to measure the load supported by a wheelset of the motor vehicle.

Abstract: A method for controlling a trigger of an activation of a function by a control module housed in a wheel unit and communicating, via a communication module, which includes a first clock employing a crystal oscillator and which communicates via UHF radio waves, with outside the wheel unit, requests to activate a function to be performed at a predetermined time being transmitted to the control module. When an activation is required, a first count of time to activation is started in the communication module by the first clock, a request to activate being transmitted from the communication module to the control module which, upon receipt, is reconfigured in order to activate the function at the predetermined time, an end of the count in the communication module being transmitted to the control module, in order for the trigger to occur at the predetermined time.

Abstract: A method for controlling a trigger of an activation of a function by a control module housed in a wheel unit and communicating, via a communication module, which includes a first clock employing a crystal oscillator and which communicates via UHF radio waves, with outside the wheel unit, requests to activate a function to be performed at a predetermined time being transmitted to the control module. When an activation is required, a first count of time to activation is started in the communication module by the first clock, a request to activate being transmitted from the communication module to the control module which, upon receipt, is reconfigured in order to activate the function at the predetermined time, an end of the count in the communication module being transmitted to the control module, in order for the trigger to occur at the predetermined time.

Abstract: A method for detecting the risk of blowout of a tire fitted to a motor vehicle, the method including the steps of measuring the temperature of the gases in the tire, if the measured temperature value is higher than or equal to a first threshold, determining a change in the measured temperature over a first time period and comparing the measured temperature value with a second threshold, if the measured temperature has increased by a value higher than or equal to a threshold difference or, if the measured temperature value is higher than or equal to the second threshold and higher than or equal to a third threshold or higher than or equal to a second threshold over a second time period, detecting a risk of blowout of the tire.

Abstract: A method for detecting the risk of blowout of a tire fitted to a motor vehicle, the method including the steps of measuring the temperature of the gases in the tire, if the measured temperature value is higher than or equal to a first threshold, determining a change in the measured temperature over a first time period and comparing the measured temperature value with a second threshold, if the measured temperature has increased by a value higher than or equal to a threshold difference or, if the measured temperature value is higher than or equal to the second threshold and higher than or equal to a third threshold or higher than or equal to a second threshold over a second time period, detecting a risk of blowout of the tire.

Abstract: A method for adjusting the periodicity of wireless communications between a tire pressure monitoring system for a motor vehicle and a smart device for a user of the vehicle in question is disclosed. On the basis of the position and any movement of the user's smart device in the environment of the vehicle, the periodicity of the alternation, by the different units of the system, of phases of transmission/polling of ultra high frequency signals with standby phases is modified.

Abstract: A method for locating the position of each wheelset of a motor vehicle. Each wheelset including at least one wheel equipped with an electronic unit including at least one sensor to measure, for the wheel, the extent of the contact patch via which the tire is in contact with the ground, and a transmitter transmitting data regarding the extent of the tire contact patch to a control unit. The motor vehicle includes a load sensor for each of the wheelsets that measures and delivers to the control unit a value for the load supported by the associated wheelset. The method employing, on the one hand, data originating from a sensor able to determine the extent of the contact patch via which a tire is in contact with the ground and, on the other hand, a load sensor able to measure the load supported by a wheelset of the motor vehicle.

Abstract: A method for adjusting the periodicity of wireless communications between a tire pressure monitoring system for a motor vehicle and a smart device for a user of the vehicle in question is disclosed. On the basis of the position and any movement of the user's smart device in the environment of the vehicle, the periodicity of the alternation, by the different units of the system, of phases of transmission/polling of ultra high frequency signals with standby phases is modified.

Abstract: A method for determining the pressure of a tire of a vehicle being driven at a speed, the tire comprising, arranged in the tire, a pressure sensor and a temperature sensor. The method includes generating a library of ratios between a measurement of the output of the pressure sensor and a measurement of the output of the temperature sensor, the one or more ratios being calculated at different speeds and one ratio being measured at a speed of zero, defining a variation law representative of the variation in the ratios with respect to the acceleration experienced by the pressure sensor, measuring the output of the pressure sensor and the output of the temperature sensor, and obtaining the value of the acceleration experienced by the pressure sensor, and determining the pressure by correcting this measurement with the variation law.

Abstract: A method for determining the pressure of a tire of a vehicle being driven at a speed, the tire comprising, arranged in the tire, a pressure sensor and a temperature sensor. The method includes generating a library of ratios between a measurement of the output of the pressure sensor and a measurement of the output of the temperature sensor, the one or more ratios being calculated at different speeds and .one ratio being measured at a speed of zero, defining a variation law representative of the variation in the ratios with respect to the acceleration experienced by the pressure sensor, measuring the output of the pressure sensor and the output of the temperature sensor, and obtaining the value of the acceleration experienced by the pressure sensor, and determining the pressure by correcting this measurement with the variation law.

Abstract: A method for communication of a plurality of wheel units with one another and with a device for remotely monitoring and/or controlling the wheel units, the wheel units measuring a pressure value of a wheel of a motor vehicle as parameter(s). The units are identified beforehand and each wheel unit may identify the other wheel units, the communication taking place in accordance with a communication standard allowing a bidirectional data exchange. A hub wheel unit storing the pressure values measured by each of the wheel units is selected at least temporarily, the other units being peripheral. The hub unit sends a signaling frame in the direction of the peripheral units, received in a peripheral unit through scanning. The pressure values are communicated between the wheel units and a device solely via the hub unit.

Abstract: A method for associating a diagnostic module of an assembly line for assembling automotive vehicle wheels with a measurement module fitted in a wheel assembled on the assembly line. The method includes a step of encryption, by using the identifier of an assembly line as an encryption key, of at least one part of the response message and a step of decryption of the encrypted response message by using the identifier of its assembly line as a decryption key in such a way as to ensure that the measurement module is associated with the assembly line.

Abstract: A method for configuring an electronic housing mounted on a wheel of a motor vehicle for the purposes of transmitting signals intended for a central unit incorporated into the motor vehicle, involving dividing one turn of the wheel into a predetermined number n of referenced sectors, commanding the emission of a sequence of n successive signals, referred to as configuration signals, which are synchronized with the n referenced sectors and of emission duration tem?T/n, where T is the period of rotation of the wheel, identifying and memorizing the referenced sectors corresponding to the configuration signals received by the central unit, and configuring the electronic housing by selecting at least one of the identified referenced sectors for the subsequent emission of the signals intended for the central unit.

Abstract: Disclosed is a method of locating a plurality of electronic measuring modules mounted in the wheels of a motor vehicle. The method includes the steps of determination (E1) by each electronic measuring module of a set of proximity scores with respect to the other modules, sending (E2) by each module of the set of proximity scores to the electronic control unit, reception (E3) by an electronic control unit of the sets of proximity scores sent, and location (E4) of each module from the sets of proximity scores received.

Abstract: A method for associating a diagnostic module of an assembly line for assembling automotive vehicle wheels with a measurement module fitted in a wheel assembled on the assembly line. The method includes a step of encryption, by using the identifier of an assembly line as an encryption key, of at least one part of the response message and a step of decryption of the encrypted response message by using the identifier of its assembly line as a decryption key in such a way as to ensure that the measurement module is associated with the assembly line.

Abstract: A method for adapting the strategy for acquiring measurements of the radial acceleration of the wheel sensors of a tire pressure monitoring system of a motor vehicle during phases in which the vehicle is stationary, in which the wheel sensors periodically measure parameters pertaining to the tires of the corresponding wheels, namely at least pressure, temperature and acceleration parameters. The method includes switching the radial acceleration measurement acquisition strategy of a wheel sensor during the “non-running” phases of the vehicle, between at least two state-of-activity modes, switching from a so-called “sleep” acquisition mode to a so-called “awake” acquisition mode when a pressure event is detected by the tire pressure monitoring system of the motor vehicle, the radial acceleration then being measured according to a period of significantly longer duration in “sleep” mode than in “awake” mode.

Abstract: A reliable and precise measurement of tire tread wear, by using wide-band (UWB) pulses and analyzing the signature obtained by reflection of these pulses from the tread, in order to deduce its state of wear therefrom. The tire wear monitoring device (100) includes a control unit (110) for signal control and data processing, this control unit (110) being coupled to a generator of ultra wide band or UWB signals (120), which is itself coupled to an antenna for incident UWB pulse transmission (140), and an antenna for receiving the UWB pulses (150) reflected from at least one interface of the tire tread, the reception antenna (150) being coupled to a pulse signal receiver (180) which is itself coupled to the control unit (110).