Design of a Longitudinal Driving/Safety Control Algorithm in Multi-Vehicle Traffic Situations

This paper presents a longitudinal driving/safety control algorithm in multiple vehicle traffic situations. Since there are many vehicles in a real road and various transitions between the subject vehicle and the neighboring vehicles are occurred, it is important to establish an integrated longitudinal control algorithm which provides comfort vehicle behavior and uses a large deceleration to maintain safe vehicle-to-vehicle clearance in multi-vehicle traffic situations. For this purpose, it is necessary to determine which the neighboring vehicle is an important target for the adaptive cruise control and prevention of collision depending on a driving situation. In addition, it is required to calculate the desired acceleration in order to improve the driver acceptance and the vehicle safety. The performance and safety benefits of the proposed longitudinal driving/safety control algorithm are investigated via simulations using several driving scenarios. Simulation results show that the system response is smooth and safe even in multiple vehicle driving situations.