混合动力电动客车驱动系统控制策略及仿真

为改善公交客车的燃油经济性与车辆尾气排放,提出了一种并联式混合动力公交客车驱动系统方案及工作模式,针对两种运行工况,在满足车辆动力要求并保证发动机最高燃油效率的前提下,以实现蓄电池充放平衡为目标设计了该驱动系统的控制策略,应用以MATLAB为平台的ADVISOR 2002软件建立该驱动系统的仿真模型.仿真结果表明,其在动力性能、燃油经济性和排放指标三方面均优于传统内燃机动力客车,每百千米的节油率在2种典型循环中分别达到45.6%和33.5%.仿真模型和控制策略能满足混合动力公交客车驱动系统设计要求.

Control Strategy and Simulation of Driving System for Hybrid Electric Bus

For economy and bus exhausting,a driving system project and working patterns for parallel hybrid electric bus are proposed.In order to meet the motive force requirement of vehicle and ensure the high efficiency of the engine,with equilibrium of charging and discharging of the battery as the goal,the control strategy for the driving-system is designed under two driving cycles.The simulation model of the driving system which is based on the software ADVISOR 2002 by virtue of MATLAB is tested.The result of simulation shows that the hybrid electric bus is better than the conventional bus in power consumption,efficiency of the engine and discharge index.Fuel saving ratio in 2 typic circulations reaches 45.6% and 33.5% respectively.Artificial model and control strategy can meet the design requirement of driving system for the hybrid electric bus.