关键词: 纯电动重型汽车；集成热管理系统；一维仿真分析；仿真精度；AMESim

Abstract: Electric heavy-duty vehicles are rapidly evolving toward high power, long range, lightweight design, and intelligent functionality. Based on the AMESim software platform, a comprehensive simulation model of an integrated thermal management system for electric heavy-duty vehicles is developed. This model includes a battery thermal management module, a cabin thermal comfort module, an air conditioning loop model and a proportional-integral (PI) control module, effectively capturing the dynamic responses of each component. Key components are calibrated through simulation, achieving an accuracy of over 85%. Using these high-precision components, the thermal management system model is constructed and validated through comparison with real vehicle test data. The system meets design requirements in key performance indicators such as compressor speed control, average cabin temperature, and battery inlet coolant temperature, with a simulation accuracy reaching 85%. The study confirms the feasibility and effectiveness of the AMESim platform for modeling integrated thermal management systems and developing control strategies, providing a solid technical foundation and data support for future control optimization and vehicle testing.

Key words: electric heavy-duty vehicle; integrated thermal management system; 1D simulation analysis; simulation accuracy; AMESim