This paper presents the design of Fuzzy Logic Controller (FLC) like autopilot with the purpose
of improving the steering accuracy of the vehicle for trajectory tracking. The kinematics and dynamics
including state variables for the vehicle model are described.
The dynamic vehicle model consists by four wheels, two of them steering wheels (front axle).
The simulation and control of vehicle dynamic model is carried out through the scheme which is
presented in this paper. FLC is used to improve the ability of the vehicle model to follow the trajectory
of motion, based on the fundamental theories of control and particularly for FLC. The duty of the FLC
is to follow accurately the trajectory - the desired path of the vehicle, holding the position, velocity
and acceleration. This paper also presents the results of simulation, through diagrams and tables, of the
vehicle model. Simulations are performed by using MATLAB / Simulink.
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