A study on the V2V-communication- based AEB system for high-speed driving under various road surface conditions

Abstract

In this study, the performance of braking intervention point of time achieved by autonomous emergency braking (AEB) of a vehicle is travelling at high speeds on a curved road under various road surface conditions was analyzed using vehicle to vehicle (V2V) communication with other vehicles ahead. To calculate a braking intervention point of time, the concept of time to collision (TTC) was applied. TTC was calculated by using the velocities and relative distances between the vehicle and other vehicles. Furthermore, braking intervention point of time was calculated by considering the friction factor corresponding to the road surface conditions. The velocity of the vehicle and the change in road curvature, which are required for the performance analysis, were incorporated in the simulation scenarios. Excellent collision avoidance performance was confirmed for high-speed driving when the braking intervention time point of the vehicle was changed according to the road surface conditions.