Comparative Analysis of Multiple Methods of SOC Estimation in Electric Vehicle

As increased awareness in green and clean energy and limited availability of fuel-based resources, every country is making the slow but inevitable shift to Electric Vehicle (EV). Battery Management System (BMS) fulfils crucial factor in EV as performance of the vehicle only goes as far as the volume of storage in the battery. The key features of BMS features like protection of the cell, battery safety and protection, State of Charge (SOC) estimation, State of Health (SOH) estimation, cell balancing, thermal management and charging control. In this chapter, we focus our scope to SOC so different methods are compared to find out their advantages, disadvantages and to find the most optimal method available in today’s research.