Process and safety system for detecting a roll-over and for enabling a safety device in a motor vehicle

The method involves generating a triggering algorithm for a safety device depending on a rotation rate sensor (1) by generating a theoretical rollover characteristic and generating the triggering algorithm by approximating the rollover characteristic in the first quadrant with at least two low pass filter functions (TP1-TP3) with trigger thresholds (S1-S3) and corner frequencies defined to satisfy a certain relationship. Independent claims are also included for the following: a safety system for detecting a rollover and triggering a safety device in a motor vehicle.