同步碎石封层车增程电驱动混合动力系统设计研究

Design and Research on Hybrid Power System of Extended Range Electric Drive for Synchronous Gravel Sealing Vehicle

通过分析传统同步碎石封层车的整车结构、工作原理、作业流程,提出了同步碎石封层车串联混合动力系统结构;基于某型号同步碎石封层车基本参数及动力性能指标,对同步碎石封层车混合动力系统中主要动力元件进行参数匹配研究及选型;结合混动同步碎石封层车4种工作模式下能量流动特点和转场、作业两种工况下的能量需求,研究系统能源管理系统,制定增程式车辆发动机和辅助能量源间的能源管理策略。运用Cruise仿真软件搭建同步碎石封层车混合动力系统仿真模型,将所提能源管理策略导入Cruise仿真平台,基于Cruise和MATLAB联合仿真来研究混动同步碎石封层车动力性能。仿真结果表明:混合动力同步碎石封层车各部分参数匹配都能很好地满足工作要求,发动机可以一直工作在最佳范围内,波动较小,混动同步碎石封层车节油率为24.7%,能量回收率为20.34%,燃油经济性能得到较大提高。

By analyzing the structure,working principle,and operation flow of the traditional synchronous gravel sealer vehicle,a series hybrid power system structure of the synchronous gravel sealer vehicle was proposed.Based on the basic parameters and power performance of a certain type of synchronous gravel sealer vehicle index,the parameter matching research and selection of the main power components in the hybrid power system of the synchronous gravel sealer vehicle were carried out.By combining energy flow characteristics and the transition and operation of the four working modes of the hybrid synchronous gravel sealer vehicle energy demand under working conditions,system energy management was researched,and energy management strategy between extended-range vehicle engine and auxiliary energy source were formulated.The Cruise simulation software was used to build the hybrid power system simulation model of the synchronous gravel sealer,and the proposed energy management strategy was imported into the Cruise simulation platform.Based on the combined simulation of Cruise and MATLAB,the dynamic performance of the hybrid synchronous gravel sealer was studied.Simulation results show that the parameters of each part of the hybrid synchronous gravel seal vehicle can be matched well to meet the working requirements.The engine can always work in the optimal range with small fluctuations.The fuel-saving rate of the hybrid synchronous gravel seal vehicle is 24.7%,and the energy recovery rate is 20.34%.Therefore,fuel economy performance has been greatly improved.