A velocity control strategy for vehicular collision avoidance system

A novel strategy on vehicular velocity controlling was proposed to meet both the demands of collision avoidance and best following performances, which aims to guarantee traffic safety and improve the transportation efficiency. Unlike the strategy used in other researches, it tries to make the following car braked with maximum deceleration to near the running situation of the preceding car, then keep the similar running states between the two vehicles. The velocity control algorithm was illustrated. A Matlab program with the algorithm is made to simulate the vehicle´s running on both the urban road and highway driving condition, the simulation results shows that the two cars follow well and there were no collision accidents occurred, which demonstrates the validity of the strategy.