Study Of P-AFS Algorithms Based On Navigation Signals And Digital Map

Intelligent headlamps AFS (Adaptive frontlighting system) can significantly improve safety of nighttime driving behivior, bending mode algorithm of conventional AFS are basically based on vehicle speed and steering wheel angle signal/ road wheel steer angle signals to control the swiveling angle of headlamps, such algorithms sometimes hysteresis and imprecise. This paper presents a new P-AFS algorithm, the algorithm can effectively use navigation signals and digital map data ,and control the swiveling angle of headlamps based on vehicle speed and road curvature. Set up mathematical model and control algorithm of actuator , established a confederative simulation model of carsim and simulink, tested and verified the algorithm, the P-AFS algorithm can effectively eliminate the hysteresis and improve accuracy of traditional AFS. Keywords-P-AFS; algorithm; mathematical model; simulation