Method for activating an obstacle avoidance system for a motor vehicle

Abstract

A method triggers an obstacle avoidance system. The method includes detecting at least one object forming a potential obstacle, determining the time remaining until the motor vehicle strikes the object, determining a path deviation to be performed to avoid the object, and activating the avoidance system according to the values of the parameter and each path deviation. The determination step includes calculating the difference between the lateral speed of the motor vehicle relative to the road in a reference frame oriented in accordance with the road at the motor vehicle, and the lateral speed of the object relative to the road in a reference frame oriented in accordance with the road at the object, and determining each path deviation according to the difference.