Patent ID: 7415334

Claim:
Process of correction for determining, by a central unit ( 8 ) that is provided with a receiver and that equips a vehicle ( 1 ), the longitudinal position, either on front wheel assembly (AV) or on rear wheel assembly (AR), of emitters ( 4 - 7 ) that are each mounted on a wheel ( 2 , 3 ) of said vehicle, whereby said central unit can analyze the field levels received from each emitter ( 4 - 7 ) and whereby said levels are inversely proportional to the distance between said emitters and the receiver, whereby said process is characterized in that: in a preliminary phase, a field level, so-called reference level, received by the receiver and having for an origin an emitter ( 4 - 7 ) that is combined with said wheel and that exhibits a given mean radiated power, is determined and stored in central unit ( 8 ) for each wheel ( 2 , 3 ) of vehicle ( 1 ), and during each start-up of the vehicle: the field levels that are received by the receiver and obtained from each of the emitters that are combined with wheels ( 2 , 3 ) are analyzed, and the location of each of said emitters is deduced therefrom, the field level that is analyzed and that is obtained from each of the located emitters is compared to the reference field level that corresponds to the same location; the deviation Δp between the analyzed field level and the corresponding reference field level are derived from this comparison, and the value of each analyzed field level is corrected by a value that is equivalent to the computed deviation, such that said analyzed field level is brought to the same level as the corresponding reference field level.