Patent ID: 6622552
Filing Date: 2003-09-23
Classification: B60C

Abstract:
System for checking the pressure of the tires of the wheels (2-5) of a vehicle including individual wheel-checking devices, each with a pressure sensor and a transmitter (20, 30, 40, 50), a central unit (1) with a common receiver (12) and antenna circuits (21-25), comprising individual receiving antennae (22-25) associated respectively with the wheel locations (2-5), configured to work with the transmitters (20, 30, 40, 50) of the individual checking devices, the system being characterized in that the receiving-antenna means of the central unit (1) additionally comprise a main antenna (21) for monitoring all the pressure-checking devices (20, 30, 40, 50) and means (13) for switching over the common receiver (12) of the central unit (1) from the main monitoring antenna (21) onto each of the individual acquisition antennae (22-25).