Design and Analysis of Control Strategy for an Efficient Battery Thermal Management System of an Electric Vehicle

摘要

© 2022. MechAero Foundation for Technical Research Education Excellence.Lithium-ion batteries (LIB) are being widely used as energy storage systems for Electric and Hybrid Electric Vehicles. The LIBs are particularly sensitive to temperatures and uncontrolled heating may lead to thermal runaway hence, a battery thermal management system is required to prevent the thermal abuse of the batteries. An efficient battery thermal management system ensures that the battery is working in its optimal temperature range thus, increasing its cycle life and performance. In this study, the heat generation profiles have been calculated for various drive cycles namely, US06, FTP-75, and UDDS, which were validated by a thermo-electric mathematical model in MATLAB Simscape. It was found that a cooling plate with an S-channel design is the most suitable for heat exchange applications and a mass flow rate value of 0.4 kg/s gives an optimum compromise between the heat transfer and the back pressure developed. The control strategy proposed in this research work regulates the battery temperature within the specified limit keeping the parasitic power at a minimum.