Smart Thermal System in Electric Vehicle

This paper introduces an innovative method for automatically determining battery temperature during vehicle off periods. Subsequently, the proposed system activates the compressor and cooling circuit, or heater and heating circuit based on the prevailing environmental conditions. Battery temperatures are retrieved from the Battery Management System at regular intervals (proposed interval: every 4 hours when the vehicle is off). The Master controller continuously monitors temperature data and triggers the compressor or heater when temperatures exceed or fall below predefined threshold values, established through calibration and considering the maximum and minimum temperature range. Furthermore, the optimal temperature profile, derived from extensive calibration, can be applied to all weather conditions, ensuring maximum battery life.