Patent ID: 8126608

Claim:
A method of detecting the motion of a vehicle ( 13 ) of which at least one wheel unit ( 11 ) of said vehicle is equipped with a means for motion detection (D) that generates a motion signal ( 20 ) when the vehicle is in motion, comprising: establishing ( 19 ) a collection of characteristics of parasitic signals (Sp) stored in the wheel unit; comparing each motion signal ( 20 ) from the wheel unit ( 11 ) against the collection ( 19 ) of parasitic signals (Sp) stored in memory; and sending to a vehicle central processing unit ( 17 ) only those wheel unit signals ( 16 ) that are not present in the collection of parasitic signals, wherein in order to establish the collection ( 19 ) of characteristics of the parasitic signals (Sp), the motion signals (S 1 , S 2 ) that do not display any phase shift are stored in memory by way of the parasitic signals (Sp).