Comparative Analysis of Salp Swarm Algorithm Tuned 2-DOF PID and PIDF controllers for Reducing the Current Consumption in EPAS System of Electric Vehicles

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Electric power-assist steering (EPAS) system is an auxiliary system of electric vehicle (EV) that reduces the steering effort of the driver by applying an assist toque using an electric motor to the steering system. This paper aims to present a comparative analysis of the salp swarm algorithm (SSA) tuned 2-Degree of freedom (DOF) PID controller and the PID controller with a derivative filter (PIDF) in reducing the current consumption of the EPAS system besides in lowering the driving effort. Simulation results are discussed to effectively signify the comparison between the two controllers. This study also determines the feasibility of SSA in optimally tuning the controller parameters for the EPAS system.