UNDERSTEER AND OVERSTEER DETECTOR FOR A MOTOR VEHICLE

摘要

The present invention relates to a method for detecting a situation in which a vehicle provided with a steering system operated by a steering wheel is losing grip, said method being characterized in that it comprises a step (a) of evaluating a first loss-of-grip indicator (P1) during which step the partial derivative (P1 = ∂ψ /∂α) with respect to a variable (α) indicative of the angular position of the steering wheel, of a rolling parameter indicative of the rate of yaw (ψ) of the vehicle is calculated by way of first loss-of-grip indicator (P1).