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.

A tire pressure management system includes a wheel valve in fluid communication with a wheel assembly. A supply valve assembly is selectively in fluid communication with the wheel valve via a fluid control circuit. The supply valve assembly permits fluid communication between a source of pressurized air and the fluid control circuit. A control valve assembly is selectively in fluid communication with the wheel valve via the fluid control circuit. The control valve assembly permits fluid communication between the source of pressurized air and the fluid control circuit or between the fluid control circuit and atmosphere.

The invention relates to a method of utilizing a system for monitoring the temperature and/or the pressure of the tires of a vehicle (C) comprising one or more rolling sub-assemblies (100, 200), noteworthy in that it consists in installing on each rolling sub-assembly (100, 200), an additional storage and communication module (300) comprising: a data storage means in which are recorded, during a learning phase, the set of unique identifiers and the locations of each measurement and communication pick-up module (300) of said rolling sub-assembly (100, 200), a means of communication at least with the reception and transmission modules (400) and installed on the rolling sub-assembly, a means of storing energy for the purposes of powering the communication means, so that said storage and communication module (300) can retain in memory the set of identifiers and associated locations of the same sub-assembly (100, 200) and can communicate it instantaneously. The invention also relates to the device allowing the method to be implemented. Applications: utilization of a system for monitoring tires.

Various examples of a transmitting device with an antenna are disclosed. In one example, a transmitting device comprises a planar circuit board; a sensor mounted on the planar circuit board; a transmitter mounted on the planar circuit board and in communication with the sensor, the transmitter configured to periodically transmit signals containing a plurality of packets; and an antenna mounted on the planar circuit board and in electrical communication with the transmitter for transmitting the signals containing the plurality of packets. The antenna comprises a first end connected to the planar circuit board and a first support section; a meander line section connected to the first support section and a second support section and lying in a plane parallel with the circuit board; a second end connected to the second support section and an electrical ground.

A handling machine performs a method for updating a database for managing a fleet of vehicles, during replacement of a tire on a vehicle that includes a plurality of predetermined spatial zones. The database includes a tire identifier for each tire of the vehicle and a zone identifier for each predetermined spatial zone. Each of the tire identifiers is associated with a corresponding one of the zone identifiers in the database. A zone identifier of a spatial zone containing a tire is determined when first predetermined conditions are met, and a tire identifier of the tire is determined when second predetermined conditions are met. An association in the database between a zone identifier and a tire identifier is updated if at least the first and second predetermined conditions are met simultaneously at least once.

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 (LA.sub.j)} 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 (WU.sub.i)} relative to the position {right arrow over (TA.sub.i)} of the transmitting antennas fitted to the vehicle, using as the criterion for determining this actual position {right arrow over (WU.sub.i)} the rate of reception, by the electronic module, of the signals transmitted by each transmitting antenna.

Various examples of a transmitting device with an antenna are disclosed. In one example, a transmitting device comprises a planar circuit board; a sensor mounted on the planar circuit board; a transmitter mounted on the planar circuit board and in communication with the sensor, the transmitter configured to periodically transmit signals containing a plurality of packets; and an antenna mounted on the planar circuit board and in electrical communication with the transmitter for transmitting the signals containing the plurality of packets. The antenna comprises a first end connected to the planar circuit board and a first support section; a meander line section connected to the first support section and a second support section and lying in a plane parallel with the circuit board; a second end connected to the second support section and an electrical ground.

Valves and related systems are described for equalization of pressure between vehicle tires. Valves may, for example, comprise a valve body which selectively opens when a vehicle is in motion so as to selectively allow two-way communication between vehicle tires.

A method is provided for adjusting the tyre pressure of a vehicle by means of a central tyre inflation system, CTIS. The vehicle has at least a first group and a second group of tyres (EM i), each group (EM i) having at least one tyre; each group (EM i) having an initial pressure (PO i); and a predetermined target pressure (P1 i) corresponding to each group (EM i). The method includes carrying out a sequence for adjusting the pressure of each group (EM i) from the initial pressure (PO i) to the target pressure (P1 i). The sequence has at least one increment (DG i-j) for each group (EM i); each increment (DG i-j) being defined by an air volume (Vi-j) to be added to the tyres of the group (EM i). The sequence includes adjusting the pressure of the groups (EM i) increment by increment (DG i-j), by switching to another group (EM i) once one increment (DG i-j) has been carried out until each group (EM i) has reached its target pressure (P1 i).

A method is provided for adjusting the tyre pressure of a vehicle by means of a central tyre inflation system, CTIS. The vehicle has at least a first group and a second group of tyres (EM i), each group (EM i) having at least one tyre; each group (EM i) having an initial pressure (P0 i); and a predetermined target pressure (P1 i) corresponding to each group (EM i). The method includes carrying out a sequence for adjusting the pressure of each group (EM i) from the initial pressure (P0 i) to the target pressure (P1 i). The sequence has at least one increment (DG i-j) for each group (EM i); each increment (DG i-j) being defined by an air volume (Vi-j) to be added to the tyres of the group (EM i). The sequence includes adjusting the pressure of the groups (EM i) increment by increment (DG i-j), by switching to another group (EM i) once one increment (DG i-j) has been carried out until each group (EM i) has reached its target pressure (P1 i).