Improved Electric Vehicle Digital Twin Performance Incorporating Detailed Lithium-ion Battery Model

Abstract

Electric Vehicle numbers have rapidly increased over the past decade. There is a dire need to establish accurate simulation frameworks to model the Electric Vehicle performance. Multiple simulation model-based approaches have been proposed in literature which consider the impact of various drive cycles on vehicle characteristics. All the available Electric Vehicle simulation models available in literature use lumped battery parameters which do not capture the dynamic behaviour of the vehicle. A detailed battery model considering drive cycle dynamics In Electric Vehicle Digital Twins have not been explored by researchers. This paper aims to provide tangible EV performance characteristics accounting for detailed 2RC battery model. This paper has used a two wheeler drive characteristics driven by a 2 kW Brushless Direct Current Motor powered by a 3.2 kWh battery pack. This paper also compares the variations in battery parameters with the lumped battery model to highlight the advantages of the proposed approach.