【摘要】 为降低增程式汽车低温运行成本，充分利用增程器余热，基于增程式汽车集成热管理系统，提出了增程器主动预热电池的运行成本优化方法，分析了增程器主动预热电池对增程式汽车低温运行成本的影响。首先，以某公司生产的增程式汽车为研究对象，基于其动力系统和集成热管理结构，结合部件热负荷试验和实车道路试验，建立了整车热管理仿真模型；其次，从能量管理和热管理集成控制的角度，提出了综合考虑油耗、电耗、电池老化和增程器主动预热电池的低温运行成本评价函数，以最低运行成本为优化目标，建立了融合热管理和能量管理的集成控制策略；最后，基于整车热管理模型，分析了不同初始电量下增程器主动预热电池对运行成本的影响，验证了主动预热方法的有效性。仿真结果表明，与恒温器策略相比，集成控制策略可在4个WLTC周期内降低增程式汽车8%～17%的低温运行成本。更多还原

【Abstract】 This research investigates methods to reduce the operating costs of Range-Extended Electric Vehicles(REEV) at low temperatures through efficient utilization of range extender residual heat. The study presents an operating cost optimization approach incorporating range extender active battery preheating and examines its impact on low-temperature operating costs for REEVs. The research methodology involves developing a vehicle thermal management simulation model based on a commercial REEV, incorporating data from component thermal load testing and road trials. The study establishes an integrated control strategy combining thermal and energy management, utilizing a comprehensive lowtemperature operating cost evaluation function that accounts for fuel consumption, electricity usage, battery degradation, and range extender active battery preheating. The effectiveness of the active preheating method was evaluated across various initial battery charge levels. Simulation results demonstrate that the integrated control strategy achieves an 8% to 17% reduction in lowtemperature operating costs over four WLTC cycles compared to conventional thermostat energy management strategies.更多还原