Patent ID: 7797091
Filing Date: 2010-09-14
Classification: B60R

Abstract:
1. A rollover judgment apparatus for judging whether or not a vehicle will roll over by comparing an output of a roll angular velocity sensor with a threshold, said device comprising: a threshold change functional unit for a rollover judging unit for judging whether or not the vehicle will roll over on a basis of the determination threshold, and said tilt angle of the vehicle; a safing functional unit for detecting a tip-up of the vehicle in relation to a motion of the vehicle; and a curtain air bag deploying unit for controlling expansion of a curtain air bag on a basis of an output of said rollover judging unit and an output of said safing functional unit, wherein the rollover judging unit judges whether or not the vehicle will rollover by comparing the tilt angle to the unchanged determination threshold when the judgment is made by the threshold change functional unit not to change the determination threshold, and by comparing the tilt angle to the changed determination threshold when the judgment is made by the threshold change functional unit to change the determination threshold.