插电式混合动力汽车系统整车建模及动力性仿真分析

Whole Vehicle Modeling and Dynamic Simulation Analysis of Plug-in Hybrid Electric Vehicle System

同轴并联结构作为动力总成系统的布局方式,以获得紧凑结构并达到更高的传递效率,开展插电式混合动力汽车系统研究具有重要的意义。为了提高对PHEV车型的行经济性与动力性能,建立了整车模型。采用CRUISE软件完成整车建模的过程,同时比较了PHEV车型和传统车型的运行经济性与动力性能,对控制策略进行分析。研究结果表明:原车和纯电动模式下汽车系统动力性结果不是很理想。在混合驱动模式下,实际车速和目标车速之间形成了良好的贴合状态,实际车速可以精确跟随目标车速,表现出优异的整车动力性。

The coaxial parallel structure is used as the layout of powertrain system to obtain compact structure and achieve higher transfer efficiency.Therefore,it is of great significance to carry out research on plug-in hybrid electric vehicle system.In order to improve the economy and power performance of the PHEV model,the whole vehicle model is established.CRUISE software is used to complete the whole vehicle modeling process.Meanwhile,the operation economy and power performance of PHEV models and traditional models are compared,and the control strategy is analyzed.The results show that the dynamic performance of the vehicle system in the original and pure electric modes is not very good.In the hybrid drive mode,a good fit state is formed between the actual speed and the target speed.The actual speed can accurately follow the target speed,show that excellent vehicle power performance.