Patent ID: 8433480
Filing Date: 2013-04-30
Classification: B60R

Abstract:
1. A device for triggering a personal protection device in a rollover accident, comprising: a roll rate sensor adapted to determine a roll rate; an acceleration sensor adapted to detect a transverse acceleration and a vertical acceleration; an integrator adapted to integrate the roll rate to form an angle, the integrator being configured in such a way that integration of the roll rate starts when the roll rate exceeds a first threshold value and ends when the roll rate falls below a second threshold value; a threshold value controller adapted to adjust at least one of the first threshold value and the second threshold value as a function of at least one of the transverse acceleration and the vertical acceleration; and a processor adapted to trigger the personal protection device as a function of the angle, wherein the processor is adapted to determine a roll angle from the transverse and vertical accelerations and the threshold value controller adjusts the first and second threshold values as a function of the roll angle, and wherein the threshold value controller subjects the transverse and vertical accelerations to a threshold value comparison and determines the first and second threshold values as a function of the comparison.