METHOD FOR FILTERING DISTURBANCES AFFECTING A DETECTION SENSOR OF A HANDS-FREE ACCESS DEVICE IN A VEHICLE WHICH MAY BE DISTURBED BY A MAGNETIC FIELD.

摘要

The invention relates to a method for filtering disturbances affecting a detection sensor (5) that can be disturbed by a magnetic field, integrated in a handle (P) of a door of a vehicle (V) equipped with a control device. hands-free access, said detection sensor being provided with an output connected to a central unit (2) in order to deliver there a state signal representative of the state of said detection sensor, and said disturbances resulting from the transmission, by an antenna (3) controlled by the central unit (2), of signals, of a predetermined transmission duration (T), of identification of portable control boxes to distance (B). According to this filtering method, the central unit (2) is programmed so that, at each command for transmitting an identification signal, and for a period of time substantially greater than the transmission duration (T ) of said identification signal, said central unit controls in parallel an inhibition of the processing of the status signal from the output of the detection sensor (5).