Method for determining spurious contacts on a contact detection sensor for a door handle of an automobile vehicle

A method for determining spurious contacts on a contact detection sensor (4) for a handle (3) of a door (2) of an automobile vehicle (1), said detection sensor (4) defining a locking control area (L) and being connected to an onboard electronic locking and unlocking system (6), said method comprising:

• a) the detection of a contact on the locking area (L) of the detection sensor (4), when, for an engagement time (t1, t2) of the locking mechanism, the number of charge transfers (N) from the detection sensor (4) is less than a threshold number of charge transfers (Nth),
• characterized in that the method furthermore comprises the following steps:
• b) evaluation of the number of charge transfers (ND′), starting from the time of the minimum value (tD′MIN) of the number of measured charge transfers and for an evaluation time (t) in order to distinguish the detections of contacts made by the user from the detections of spurious contacts,
• c) if the contact detections are spurious contact detections, matching of the threshold number of charge transfers (ND′th) in order to be able to detect any next contact originating from the user on the locking area (L) in the presence of spurious contacts.