The rising trend in global average temperatures has become difficult to ignore. Therefore, many countries around the world have proposed various plans to deal with the unrestrained use of fossil fuels and formulated roadmaps to wean themselves off fossil energy. In the field of automotive production design, many companies have begun to focus on the use of renewable energy. Therefore, the presence of electric vehicles in the market has gradually increased in recent years. Usually, the energy of electric vehicles comes from the chemical energy in the battery, so the battery management system (BMS) effectively evaluates and monitors the battery,which is the key to ensuring the safe and smooth running of electric vehicles.