Current reduction in Electrical Vehicles via EPAS system control using MVO and GWO based tuning methodology

Abstract

The electric power assist steering (EPAS) system has, in the recent years, emerged as an effective alternative to the conventional hydraulic powered steering system in new vehicles owing to its significant potential in minimizing energy utilization and enhancing the efficiency of driving performance. In all new electrical vehicular technology, for all sub-systems, there is a requirement of battery energy; hence energy conservation is the first essential criterion to be met. In this work, therefore, recent meta-heuristic techniques are implemented to optimally tune the proportional, integral, and derivative with filter (PIDF) controller, applied over the EPAS system, to realize the assist current reduction for its operation. The results establish the effectiveness of the novel proposition in reducing the assist current and minimizing the energy demand as compared to the conventional tuning. Apart from this, the drive torque is also reduced. Matlab® platform is used for modelling and simulations.