基于EMR的CVT—PHEV建模与仿真

为了研究并联混合动力电动汽车中无级变速器速比与发动机转速的匹配，以及发动机与电机功率的协调，首次采用EMR宏观能量描述的方法，建立CVT-PHEV整车图形模型，根据整车模型逆向推导出系统的控制策略，用Matlab／Simulink按照模型搭建仿真平台。仿真结果得到cVT速比和发动机转速变化，双能源功率流的分配，验证了模型与控制策略的正确性，得出用EMR建模在分析系统耦合处能量流与快速得到系统逆向控刺两方面具有优越性的结论。

CVT-PHEV modeling and simulation based on EMR

For study the match between the CVT ratio and the ICE speed,as well as power distributions between the ICE and the EM,the EMR(Energetic Macroscopic Representation) is employed,to set up a CVT-PHEV graphic model,and then an inversion-based control strategy is deduced,and finally simulations by using MATLAB/Simulink have been completed.The simulation results show in detail the changes of the gear ratio and the ICE speed and the distribution of power flow between two energy sources.Conclusions have been made that the EMR graphical tool shows an advantage in system modeling which allows better analyzing the coupling power flow and obtaining an inversion-based control strategy.