PID Fuzzy Control for Straight-Line Motion of a Vehicle

This article explores the implementation of a PID algorithm based on a fuzzy controller to regulate the straight-line motion of a vehicle. The solution is programmed in MATLAB, and executing the code generates a visual plot of the vehicle's movement trajectory. The primary objective of this project is to provide a practical programming demonstration that enhances understanding of PID algorithm mechanics and control theory applications. We will introduce the fundamental principles of PID controllers and the application of fuzzy controllers, explaining how their integration achieves precise straight-line vehicle motion. The MATLAB implementation details will be comprehensively covered, including key functions such as fuzzy logic system design using fuzzy toolbox, PID parameter tuning through pidtune functions, and trajectory visualization with plot commands. Sample code segments will illustrate real-time error calculation, fuzzy inference for dynamic PID gain adjustment, and kinematic modeling for movement simulation.