关键词: 电动汽车；物理建模；二自由度动力学

Abstract: This study aims to analyze the physical modeling technology of electric vehicles and its applications in typical fields, optimize the design and use of electric vehicles through technical analysis of the model. The article proposes a feasible modeling method based on the working principle and related theories of electric vehicles, and uses Newtonian mechanics based methods to establish a "two degree of freedom dynamics" formula model that can reflect the actual operating state of electric vehicles. The article adopts literature analysis and mathematical modeling methods to establish a physical model technology framework, which can deeply analyze and optimize the performance and safety of electric vehicles. It provides a basis for subsequent motion analysis, control strategy design, and performance optimization. This analysis is of great significance for promoting the development of electric vehicles.

Key words: Electric vehicles; Physical modeling; Two degree of freedom dynamics