插电式混合动力汽车实车优化控制策略研究

摘要

To address the problem that the existing optimal control strategy is difficult to be applied in real vehicle control due to its long searching time, this paper proposes approximate pontryagin's minimum principle control strategy. A real vehicle control software based on this optimal control strategy is developed in the Matlab/Simulink/stateflow development environment. Finally, a random road is selected for real vehicle test, the results show that the proposed optimal control strategy has good real-time performance, and can be applied to real vehicle, moreover, it can distribute engine and motor torque properly.%针对目前优化控制策略由于寻优时间长,难以应用于实车控制的问题,提出了近似极小值原理优化控制策略,在Matlab/Simulink/Stateflow开发环境下,开发了基于该优化控制策略的实车控制软件.选取一段随机路况进行实车道路试验,结果表明,提出的优化控制策略实时性好,能够应用于实际车辆,且能合理分配发动机和电机扭矩.