串联型混合动力汽车动力系统设计与仿真

Design and Simulation of the Power-train System for the Series Hybrid Electric Vehicle

对串联型混合电动公交车的动力系统进行了设计及部件选型,在分析其工作模式的基础上,确定了发动机发电机辅助动力单元的"恒温器"控制策略.对该混合动力系统的仿真分析表明,该辅助动力系统的控制策略可行,发动机发电机辅助动力单元在混合电动汽车动力系统功率输出过程中可以起到预期的功率平衡及补充作用.

In this paper,The powertrain system for a series hybrid electric bus was designed and its key components were selected.Based on the fundamental working modes of the hybrid electric bus, a'Thermostat'control strategy was adopted to control the a auxiliary power unit composed by the enginegenerator set.Simulation analysis method was used to investigate the working conditions of this system.The simulation results verify that the control concept for the enginegenerator set is feasible,and the auxiliary power unit can balance the power output demand and make up the battery energy shortage.