Research on Adaptive Cruise Control Systems and Performance Analysis Using Matlab and Carsim

Abstract

An application of mathematical control techniques to the longitudinal dynamics of a vehicle equipped with an adaptive cruise control (ACC) system is presented. This study is carried out for the detailed understanding of a complex ACC vehicle model under critical transitional maneuvers (TMs) in order to establish safe inter-vehicle distance with zero range-rate behind a preceding vehicle. The ACC vehicle is based on a nonlinear longitudinal model that includes vehicle inertial and power train dynamics. The lower-level controller computes the desired acceleration and deceleration commands for the upper-level controller which then provides the throttle/brake commands for the complex vehicle model. An application of a PI controller algorithm to control the longitudinal dynamics of an adaptive cruise control system equipped vehicle is presented in this paper using Simulink to simulate the system. The simulation results show that the adaptive cruise control system can decrease the number of accidents and to reduce the impact of accidents.