Path Tracking Based on Pure Pursuit Algorithm for Intelligent Vehicles
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Graphical Abstract
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Abstract
To achieve intelligent vehicle path tracking, an electric power steering (EPS) system as the foundation was modified and mounted on the steering system of Beijing University of Technology Intelligent Vehicle (BJUT-IV). According to parameters of the vehicle and the speed, the look-ahead distance was obtained. According to position and planning path of the vehicle, the preview point was selected. Using the Pure Pursuit algorithm, the vehicle lateral kinematics model and simulation on the Matlab were established. The intelligent vehicle control system PC software was designed. In the experiment, according to the location information provided by GPS, the unmanned experiment in the campus road was completed. Experimental results show that the algorithm tracking error is small, and the swing magnitude of the front is moderate to ensure the stability of the vehicle during driving.
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