插电式串联混合动力汽车的系统匹配与仿真

摘要

A system matching method for plug-in series hybrid electric vehicle is proposed based on the analysis on road conditions and vehicle power demand.A model for hybrid power system is built and a simulation analysis on the energy efficiency of system under different energy management strategies is conducted by means of energy flow diagram.The results show that the system matching method proposed is feasible,and the control strategy combining ON-OFF control with load following scheme can enhance the efficiency of key system components while improve the fuel economy of vehicle.%针对插电式串联混合动力汽车,提出了一种基于道路工况和整车功率需求分析的系统匹配方法.建立了混合动力系统的模型,并利用能量流图,对采用不同的能量管理策略时系统的能效进行仿真分析.结果表明,所提出的系统匹配方法可行,采用ON-OFF与负载跟随相结合的控制策略在改善车辆燃油经济性的同时,可提高系统关键部件的效率.