Patent ID: 6611784
Filing Date: 2003-08-26
Classification: B60G,B60R,B60W

Abstract:
A process for determining the lateral overturning of a vehicle, comprising the step of establishing a threshold value line separating a lateral overturning region farther from an origin and a lateral non-overturning region closer to the origin on a two-dimensional map made using a rolling angle and a rolling angular speed of the vehicle as parameters, so that when a hysteresis line for actual rolling angles and actual rolling angular speeds of the vehicle traverses said threshold value line from the lateral non-overturning region to the lateral overturning region, it is determined that there is a possibility of lateral overturning of the vehicle, and wherein when the rolling angular speed is increased after the rolling angle has reached a fully-bumping rolling angle while the rolling angular speed was decreased, said threshold value line is moved toward the origin.