Modeling and Simulation of Independent Speed Steering Control for Front In-wheel in EV Using BLDC Motor in MATLAB GUI

Currently, electric vehicles (EV) have become more popular in research because of issues of the environmental pollution and the running out of fossil fuel. This research presents a strategy of independent speed steering control for two front in-wheel BLDC motors while an EV drives on a straight road as well as on a curved road. When the EV runs on a straight road, each front wheel has the same rotating speed. However, on a curved road, the outer wheel has the rotating speed higher than the inner wheel. Ackermann-Jeantand steering model is used to determine the reference speed for each front wheel of the EV during turning motion when a certain steering angle and EV speed are inputted. The fuzzy logic controller (FLC) has been designed to control the speed of each motor to reach the desired speed. Hysteresis current controller is introduced to generate the switching signals for each switch device in the power inverter. A Graphical User Interface (GUI) is created in MATLAB to control the overall system. Three different cases of simulation have been done and the results are satisfying with the response. The results demonstrated that the control system has worked properly.