Comprehensive Analysis of Battery Thermal Management and Energy Consumption in an Electric Vehicle: Impact of Driving Modes and Ambient Temperatures

Abstract This study provides an in-depth analysis of how battery thermal management and energy consumption in an electric vehicle are influenced by different driving modes and ambient temperatures. It highlights the important role of the battery thermal management system (BMS) in ensuring efficient battery operation, particularly under extreme temperature conditions. At − 15 °C, energy efficiency dropped by 67% in city driving and 42% on the highway. This was mainly due to the heating system using more energy. Meanwhile, at 35 °C, energy consumption rose by 24% in city driving and 12% in highway driving, primarily due to the air conditioning system. The thermal management system helped regulate the battery’s temperature, reducing performance loss in both low and high temperature conditions. In cold environments, the heating system used 51% of the total energy in city driving and 30% in highway driving. This shows that ambient temperatures greatly affect energy use. These results stress the need to optimize both the BMS and HVAC (Heating, Ventilation and Air conditioning) systems. This will improve energy efficiency and ensure consistent performance in various driving conditions.