Patent ID: 8116949

Claim:
A method for determining an initial float angle for skid detection in rollover sensing of a rollover of a vehicle having at least one sensor system for vehicle-dynamic signals and a control unit for activating a restraining device, the method dividing a driving state of the vehicle into chronologically consecutive state phases, wherein the method steps carried out continuously in a first state phase comprises: (S1) calculating a change in a float angle from the vehicle-dynamic signals; (S2) comparing the calculated change in the float angle with a predefined threshold value; and (S3) determining the initial float angle based on the calculated change in the float angle, wherein the determination of the initial float angle is made using one of two different determining methods as a function of the comparison with the predefined threshold value, wherein a first determining method is used for a first range of small changes in the float angle and a second determining method is used for a second range of larger values of changes in the float angle.