Title |
Observer Based Adaptive Control of Longitudinal Motion of Vehicles |
Authors |
김응석(Kim, Eung-Seok) ; 김동헌(Kim, Dong-Hun) ; 양해원(Yang, Hai-Won) |
Keywords |
Observer ; Longitudinal control ; Adaptive Law |
Abstract |
In this paper, an observer-based adaptive controller is proposed to control the longitudinal motion of vehicles. The standard gradient method will be used to estimate the vehicle parameters, mass, time constant, etc. The nonlinear model between the driving force and the vehicle acceleration will be chosen to design the state observer for the vehicle velocity and acceleration. It will be shown that the proposed observer is exponentially stable, and that the adaptive controller proposed on this paper is stable. It will be proved that the errors of the relative distance, velocity and acceleration converge to zero asymptotically fast, and that the overall system is also asymptotically stable. The simulation results are presented to investigate the effectiveness of the proposed method. |