Suspension System Modelling And Control For An Electric Vehicle Driven by In-Wheel Motors

The growing popularity of electric vehicles EV is mostly related with state measures aimed at selling new automobiles with reduced emissions of dangerous substances into the atmosphere. Emission standards enshrine this. The usage of in-wheel electric motors is one solution to the exhaust pollution problem. this paper evaluates the impact of an in-wheel motor IWM suspension system on the ride comfort and road holding of an electric vehicle EV. To investigate the impact of the IWM suspension system on vehicle ride comfort, a dynamic vehicle quarter model with 1-DOF is created using a combination of road surface profile excitations and in-wheel motor. To achieve the target of this paper, a complete control system is implemented; this control system is prepared using MATLAB and consists of three components: the input signals (the actuator force and the road surface profile), a fuzzy PID controller, and the suspension model. The simulation results illustrate a comparison of the suspension system's performance in two scenarios: when the standard wheel is used and when IWM is used. This study showed that the IWM used gave a negative result on the performance of the system because of its extra weight, even if this effect was small compared to the suspension system performance when using standard wheels.