Abstract: A method and TPMS system including a central unit and wheel units. Each wheel unit including a pressure sensor, regularly transmitting pressure and radial acceleration measurements to the central unit. The latter used to calculate a detachment parameter for the wheel unit. A test module determines whether each wheel unit is in a detached or operational state. A return-to-service module toggles the state of a wheel unit from the detached to the operational state if: since the wheel unit was declared detached, a pressure less than or equal to a reference atmospheric pressure is measured while the vehicle was at rest, and if after this rest, at least one of: the detachment parameter has not attained a nominal detachment threshold in a first movement time; an attachment index corresponding to a particular shape of a measurement signal of the wheel unit has been detected under specific evaluation conditions, occurs.

Abstract: A method and system for evaluating the reliability of data supplied by multi-function WFC sensors of tires of wheels of a vehicle for targeted applications, on the basis of the irregularities of the road, which use displacement data sent from the road handling adaptation equipment of the vehicle, enabling the variations in the road condition to be reflected. The system includes equipment for monitoring the wheel displacement data for adapting it to the variations of profile of the road on which it is traveling, in order to maintain a stable body position. The monitoring equipment is linked to the WFC sensors via a central processing unit which is capable of correlating data supplied by the WFC sensors and values of wheel displacement data supplied by the monitoring equipment for the purpose of weighting the values of at least one parameter obtained from the data delivered by the WFC sensors.

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 the position of wheels of a vehicle equipped with an electronic unit for measuring operating parameters of each wheel, involving, for the purpose of locating the position of a wheel, the ordering of the transmission, by the electronic unit outfitting that wheel, of n RFi signals transmitted at times t1 to tn for angular positions ?1 to ?n of the electronic unit, to a central unit additionally connected to speed sensors that are each positioned in proximity to a wheel and able to furnish data ?i representative of the orientation of the wheel.

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: In a method for controlling a processor on a wheel, wheel operation parameters are calculated and transmitted to a CPU. A first default operating mode (standby mode) is defined, during which activities related to calculating and checking the characteristic data of the tread mark of the tire are deactivated, a second operating mode for detection of significant changes in the value of a characteristic datum of the tread mark, sought during the appearance, in standby mode, of at least one event likely to be preceded by a significant change in the value, and a third operating mode for calculation and transmission, to a CPU, a sequence of values representing the characteristic datum of the footprint, sought during the confirmation, in detection mode, of a significant change in the value of the characteristic datum of the tread mark, and at the end of which a switch is made into monitoring mode.

Abstract: Method for locating the position of the wheels of a vehicle, each equipped with an electronic module for measuring operational parameters of each wheel, includes: controlling the transmission, by the module equipping that wheel, of n signals transmitted at times t1 to tn for given angular positions ?1 to ?n of the module, to a connected central processing unit, and to speed sensors each positioned close to a wheel, capable of delivering, values convertible into angular values, data representing the orientation of the wheel. The central processing unit is programmed to calculate, for each series of angular values ?1 to ?n provided by a wheel measuring sensor at the times t1 to tn, a characteristic value Vn1-Vnr representing the dispersion of the values ?1, (?2??2) . . . (?n??n), and to compare the characteristic values to allocate, to the electronic module, the position of the wheel located close to the wheel speed sensor.

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 and TPMS system including a central unit and wheel units. Each wheel unit including a pressure sensor, regularly transmitting pressure and radial acceleration measurements to the central unit. The latter used to calculate a detachment parameter for the wheel unit. A test module determines whether each wheel unit is in a detached or operational state. A return-to-service module toggles the state of a wheel unit from the detached to the operational state if: since the wheel unit was declared detached, a pressure less than or equal to a reference atmospheric pressure is measured while the vehicle was at rest, and if after this rest, at least one of: the detachment parameter has not attained a nominal detachment threshold in a first movement time; an attachment index corresponding to a particular shape of a measurement signal of the wheel unit has been detected under specific evaluation conditions, occurs.

Abstract: Disclosed is a method for communicating measurement messages between a plurality of electronic measurement modules and an electronic control unit of a motor vehicle. The method includes the steps of measurement (E1), by a primary emitter module, of parameter values associated with the wheel in which the module is mounted, of sending (E2), by the primary emitter module, of measurement messages to a relay module, of reception (E3) by the relay module, of the measurement messages sent, of measurement (E5), by the relay module, of parameter values associated with the wheel in which the relay module is mounted and of sending (E6), by the relay module, of the measurement messages received and of its own measurements to the electronic control 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 and system for evaluating the reliability of data supplied by multi-function WFC sensors of tires of wheels of a vehicle for targeted applications, on the basis of the irregularities of the road, which use displacement data sent from the road handling adaptation equipment of the vehicle, enabling the variations in the road condition to be reflected. The system includes equipment for monitoring the wheel displacement data for adapting it to the variations of profile of the road on which it is traveling, in order to maintain a stable body position. The monitoring equipment is linked to the WFC sensors via a central processing unit which is capable of correlating data supplied by the WFC sensors and values of wheel displacement data supplied by the monitoring equipment for the purpose of weighting the values of at least one parameter obtained from the data delivered by the WFC sensors.

Abstract: A method and system for evaluating the reliability of data supplied by multi-function WFC sensors of tires of wheels of a vehicle for targeted applications, on the basis of the irregularities of the road, which use displacement data sent from the road handling adaptation equipment of the vehicle, enabling the variations in the road condition to be reflected. The system includes equipment for monitoring the wheel displacement data for adapting it to the variations of profile of the road on which it is traveling, in order to maintain a stable body position. The monitoring equipment is linked to the WFC sensors via a central processing unit which is capable of correlating data supplied by the WFC sensors and values of wheel displacement data supplied by the monitoring equipment for the purpose of weighting the values of at least one parameter obtained from the data delivered by the WFC sensors.

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: Disclosed is a method of locating the position of wheels of a vehicle equipped with an electronic unit for measuring operating parameters of each wheel, involving, for the purpose of locating the position of a wheel, the ordering of the transmission, by the electronic unit outfitting that wheel, of n RFi signals transmitted at times t1 to tn for angular positions ?1 to ?n of the electronic unit, to a central unit additionally connected to speed sensors that are each positioned in proximity to a wheel and able to furnish data ?1 representative of the orientation of the wheel.

Abstract: In a method for controlling a processor on a wheel, wheel operation parameters are calculated and transmitted to a CPU. A first default operating mode (standby mode) is defined, during which activities related to calculating and checking the characteristic data of the tread mark of the tire are deactivated, a second operating mode for detection of significant changes in the value of a characteristic datum of the tread mark, sought during the appearance, in standby mode, of at least one event likely to be preceded by a significant change in the value, and a third operating mode for calculation and transmission, to a CPU, a sequence of values representing the characteristic datum of the footprint, sought during the confirmation, in detection mode, of a significant change in the value of the characteristic datum of the tread mark, and at the end of which a switch is made into monitoring mode.

Abstract: Disclosed is a method for communicating measurement messages between a plurality of electronic measurement modules and an electronic control unit of a motor vehicle. The method includes the steps of measurement (E1), by a primary emitter module, of parameter values associated with the wheel in which the module is mounted, of sending (E2), by the primary emitter module, of measurement messages to a relay module, of reception (E3) by the relay module, of the measurement messages sent, of measurement (E5), by the relay module, of parameter values associated with the wheel in which the relay module is mounted and of sending (E6), by the relay module, of the measurement messages received and of its own measurements to the electronic control 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 locating the wheels of a vehicle equipped with an electronic module, according to which the transmission, by transmitting antennas mounted on the vehicle, of a predetermined number of identification request signals is commanded, and the values representative of the rates of reception of these signals by the electronic modules are analyzed. According to the method, centroid calculations are performed to determine, for each wheel position, the “ideal position” {right arrow over (LAj)} for reception of the transmitting antennas covering the wheel position (a reception rate of 100%), and, for each electronic module, the “actual position” of the latter {right arrow over (WUi)} relative to the position {right arrow over (TAi)} of the transmitting antennas fitted to the vehicle, using as the criterion for determining this “actual position” {right arrow over (WUi)} the rate of reception, by the electronic module, of the signals transmitted by each transmitting antenna.