A case study of different control schemes of brushless DC drive for electric vehicle applications

In this study, high-performance control strategies for Brushless DC (BLDC) motors in Electric Vehicles (EVs) are advanced, with a particular emphasis on the use of an electronic differential system (EDS), a control system for the rear differential. The importance of systems related to electric motors is increasing as demand for increased productivity rises. Cost-effective BLDC motor demand has increased significantly, especially in the industrial sector. The EDS uses two BLDC motors attached to the back wheels each with a variable speed, giving it a particular edge. This configuration makes it easier to control the wheel speeds precisely during cornering. The control mechanism adjusts limit gaps between actual and desired outputs while continuously monitoring the output to ensure correctness. This method of using a closed-loop control system is generally accepted. A tachometer is used for experimental BLDC speed measurement, and MATLAB/Simulink load simulations support the empirical analysis. The results of the experiments show that incorporating the electronic differential produces promising results. These results show improved EV propulsion system efficiency, highlighting the beneficial effect of electronic differentials on overall performance.