Development of 4WIS SBW in-wheel drive compact electric vehicle platform

The increasing of population in urban area causing a drastic number of vehicle appears on the road. Besides of contributing a negative impact for surrounding environment due to CO2 gas emission, it is also causing a difficulty and reduce flexibility of people to move in short distance. In this paper a development of electric vehicle for urban usage is presented. The design of this electric vehicle involves mechanical structure, electronic module and control algorithm development. This two seated vehicle is equipped with Four Wheel Independent Steering (4WIS) system that is controlled using Steer by Wire (SBW) technology and the drive unit is using the state of art In-Wheel Drive electric DC motor (IWM). Result shows that, this Compact Electric Vehicle (CEV) can improve maneuverability during tight cornering angles by using All Wheel Steering (AWS) mode and also capable to perform a motion of 180∘ turning or Zero Point Turning (ZPT). The system architecture is proposed to integrate 4WIS with SBW.