Patent ID: 6434461
Filing Date: 2002-08-13
Classification: B60R,G01S

Abstract:
A sensor system for the triggering of a side airbag in a vehicle having at least one door and at least one vehicle side, said sensor system comprised of;(a) at least first and second millimeter wave emitting sensors (1) and (2) spaced at least two decimeters apart and integrated in said at least one door or said at least one vehicle side for respectively generating measurement signals by a multi-frequency modulation process; (b) signal processing means (3) for receiving said measurement signals, resolving a collision object (5) into individual echo centers (6) using radar signals, and determining the distance value (Rn) and the transverse velocity (Vq) of said echo centers relative to the at least one door, and (c) a situation analysis module (4) downstream of said signal processing means, for differentiating the two sensor measurement signals, to (1) Classify said collision object according to geometric characteristics and (2) determine whether a parallel passage or an impact situation exists, wherein from an analytical correlation of the determined transverse velocity (Vq), the classified collision object and the determined impact situation in the situation analysis module (4), an actuation impulse (Ai) for the actuation electronic of the airbag is generated in a threatening situation.