Research on Electromagnetic Compatibility in the Design of Battery Management System

In this paper, on the basis of the electric car battery, battery SOC estimation and equalization management. First of all, to understand of battery management system function structure, according to the functional requirement for modular design. Using the extended Kalman filtering algorithm for SOC estimation, which is based on passive equalization process sequence algorithm play a balanced role. analyzed different forms of filtering circuits and verified effectiveness through simulation.