Collision and / or passenger protection system for a motor vehicle and method thereof

Collision or passenger protection system for a motor vehicle (1) with at least one collision sensor (S1) for measuring a form suitable for collision detection variable (aS1) of the motor vehicle (1), wherein the collision or passenger protection system comprises a means of an ignition signal (CRASH, AIR, BELT) releasable Personenschutzaktor (15, 16) or by means of the ignition signal (CRASH, AIR, BELT) comprises releasable warning device, wherein the collision or passenger protection system includes a first classifier (51) for by a - measured in dependence of the means of the collision sensor (S1) size (aS1) formed - the first characteristic signal (x [n llisionssensors (S1) or of a further collision sensor (S2) measured value (AS1, AS2) formed - second feature signal (y [n