Apparatus of the tire pressure monitoring, having the capacity of we shall now describe with precision the state of the following of a

摘要

An apparatus for monitoring tire pressure (2), which is disposed on a wheel (5a, 5b, 5c, 5d) of a vehicle (1) comprises a pressure sensor (21), a transmitter (24), an acceleration sensor (22) and a controller (23). The pressure sensor (21) provides a pressure signal representative of the pressure of a tire. The transmitter (24) transmits the pressure signal. The acceleration sensor (22) provides an acceleration signal representative of a centrifugal acceleration increasing with the speed of displacement of the vehicle (1). The controller (23) is configured in order to determine a variation of the centrifugal acceleration for a predetermined time interval, to determine the vehicle (1) as being in a state of travel when the determined variation is greater than or equal to a predetermined threshold, and to control the transmitter (24) in order to transmit the pressure signal when the vehicle (1) is located in a state of displacement.