Simulation of Independent Speed Steering Control of Four In-wheel BLDC Motors Direct Drive for Electric Vehicle Using Hybrid Fuzzy-PI Controller in MATLAB GUI

Electric vehicles are the new target for researchers from many fields to find new innovation to reduce the usage of fossil fuel which currently almost finished. This paper presents a strategy of independent speed steering control for four in-wheel direct drive type by using brushless direct current (BLDC) motors. The hybrid Fuzzy-PI speed controller has been proposed to control the speed of each motor. Hysteresis current controller is introduced to generate the switching signal for each switch in inverter. Ackermann-Jeantand steering model is combined to determine the reference speed each wheel of vehicle during turn in a curve road. By using GUI's interface controlling in MATLAB/SIMULINK, the results of simulation each motor are demonstrated. Four different cases are simulated and given satisfy performance.