Battery Management System For Electric Vehicle

Abstract

Shortly, electric cars are expected to predominate as a mode of transportation, and lithium-based rechargeable battery packs have become commonplace in them. To keep the overall electric vehicle system safe, effective, and reliable, battery packs must be constantly monitored and regulated. A battery management system is composed of a battery fuel gauge, an optimal charging algorithm, and circuitry for cell/thermal balance. The battery is tested for voltage, current, and temperature using three non-invasive measures. These measurements are used to evaluate the battery's vital states and properties, including its impedance, capacity, state of charge, state of health, power fading, and remaining useful life. These calculations are essential for the efficient operation of battery safety devices, charge and heat balance techniques, and optimal charging algorithms. Accurate characterization, reliable estimation of battery states and characteristics, and effective battery control mechanisms make up the approach to robust battery management. To create a reliable battery management system, the authors of this study present some recent methods they have devised.