双电机串联驱动PHEV 能量管理策略研究

为使插电式混合动力汽车(PHEV)拥有更好的经济性,文章提出一种以行星齿轮为动力耦合机构的双电机PHEV构型,实现了多种工作模式,避免了传统单电机构型下模式单一、效率低下问题。在此构型的基础上进行工作模式的划分与制定,能量管理策略的搭建。基于MATLAB/Simulink搭建整车模型及控制策略,对所建模型的准确性以及所提策略的有效性进行验证。仿真结果表明:在NEDC工况测试下,该构型车辆工作模式切换正确,可有效提升续驶里程,节能效果显著。

Research on Energy Management Strategy of Dual Motors Series Driven PHEV

In order to make the plug-in hybrid electric vehicle(PHEV)have better economy,this paper a dual motor PHEV configuration with planetary gear as dynamic coupling mechanism is proposed,which realizes a variety of working modes and avoids the problems of single mode and low efficiency under the traditional single motor configuration.On the basis of this configuration,the working mode is divided and formulated,and the energy management strategy is established.The vehicle model and control strategy are built based on MATLAB/Simulink to verify the accuracy of the model and the effectiveness of the proposed strategy.The simulation results show that under the NEDC working condition test,the working mode switching of the vehicle with this configuration is correct,the driving range can be effectively increased,and the energy saving effect is remarkable.