State of Charge Estimation of Electrical Vehicle Battery

Abstract

The batteries are considered to be the good technology and this can be used in the electric vehicles very effectively. There are many advantages in the case of lithium-ion batteries like energy is high, density is also high and life has been improved to the great extent. The Li-ion battery is comparatively costly than the lead-acid battery. The state of the charge is important parameter for the consideration of the battery performance. The determination of the SOC involves the measurement of the open circuit voltage. The estimation of the SOC is the parameter to be considered in the case of the battery of the electric vehicles. The monitoring should be very accurate so that the battery management system can be very effective. The present work is the methodology related to the estimation of the state of the charge in the case of the batteries which are generally used in the Electric vehicles.