Patent ID: 6633229
Filing Date: 2003-10-14
Classification: B60C

Abstract:
A method for allocating identifiers, that are contained in signals issued by transmitters arranged in a tire pressure monitoring system, comprising a pressure sensor, a transmitter and a transmission antenna on each of a number of wheels mounted at given position of a vehicle, one or more receiving antennas on a vehicle body, and an electronic receiving and analysis system connected to the antennas by wire, to the positions of the wheels on which the transmitters are arranged, by picking up the signals, containing the identifier, by the one or, more receiving antennas, transmitting them to the electronic receiving and analysis system and analyzing them by means of the latter with respect to their identifier,for which purpose one measures on the wheels of which the tire pressure is monitored not only the tire pressure but in addition an acceleration value derived from a moving condition of the respective wheel, transmits a signal derived therefrom by means of the respective transmitter to the receiving and analysis system and analyses an information, contained in the signal, identifying the position of the wheel from which the signal has been obtained, characterized in that for differentiating between wheels on the right side of the vehicle and wheels on t he left side of the vehicle, the sign of a transition acceleration b occurring on wheel electronics comprising the pressure sensor, the transmitter, the transmitting antenna and an acceleration sensor is determined for each running wheel, the wheel electronics being provided on the different wheels in corresponding mounting positions, that the sign of the variation of a centrifugal acceleration z occurring during the transition acceleration b is additionally determined and multiplied by the sign of the transition acceleration b determined for the respective wheel to obtain a multiplication products of the signs, and that one differentiates between wheels on the right side of the vehicle and wheels on the left side of the vehicle by comparing the products of the two signs determined for the different wheels.