Patent Number: 8,791,801

Title: Proximity detection device for a motor vehicle

Abstract: This device (4) allows the detection of the presence of an object in a detection zone by measuring a variation in capacitance brought about by the presence of the object. It includes an element (6) for emitting an electric field, an element (8) for receiving an electric field, and elements for measuring the coupling capacitance between the emission element (6) and the reception element (8), the emission element (6) emitting an electrical signal received by the reception element (8) so that a coupling capacitance of a predetermined value is established between the emission element (6) and the reception element (8) when no object is present in the detection zone, a variation in the coupling capacitance indicating the displacement of an object in the detection zone and the establishment of a capacitance of a different value from the predetermined value indicating the presence of a static object.

Inventors: Aubry; Jean-Marcel (Bourogne, FR)

Assignee: Faurecia Bloc Avant

International Classification: B60Q 1/00 (20060101)

Expiration Date: 7/29/12018