燃料电池汽车整车热管理系统设计与仿真分析

Design and simulation analysis of the whole vehicle thermal management system for fuel cell vehicles

以某款燃料电池汽车为研究对象,综合考虑车辆的整车布置环境和热管理要求,设计了一套完整的氢燃料电池汽车热管理系统;对关键零部件进行选型与性能匹配设计,运用AMESim软件搭建热管理系统一维仿真模型并进行可信度验证。通过冷却液输入流量、零部件进出水温度及温差等指标对不同工况下的氢燃料电池汽车热管理系统进行仿真分析,结果表明:除电堆和中冷器出水温度在峰值工况下达到极限值不宜长时间工作外,该系统其余工况均运行良好,满足设计要求,可为今后研发燃料电池汽车整车热管理系统提供一定设计思路。

Taking a fuel cell vehicle as the research object,considering the vehicle layout environment and thermal management requirements comprehensively,a complete thermal management system of hydrogen fuel cell vehicle is designed.The key components are selected and designed to match the performance.At the same time,AMESim software is used to build a one-dimensional simulation model of thermal management system and verify its credibility.Using the coolant input flow rate,components’inlet and outlet temperatures and temperature difference as the evaluation indicators,the simulation analysis of the thermal management system of hydrogen fuel cell vehicle under different working conditions is carried out.The results show that the system works well and meets the design requirements except that when the outlet water temperature of the stack and intercooler reaches the limit value under the peak condition,it is not suitable to work for a long time.The proposed thermal management system can provide some design ideas for the future research and development of the thermal management system of fuel cell vehicles.