并联式混合动力汽车控制策略的仿真研究

Investigation to Simulation of Control Strategy of Parallel Hybrid Electric Vehicles

以发动机稳态效率图和电池的充放电内阻曲线为依据,提出了基于负荷平衡和逻辑门限方法的并联式混合动力汽车(PHEV)实时控制策略,用以控制混合动力系统的转矩分配,实现混合动力系统的不同工作模式以及模式间的动态切换。在MATLAB/Simulink环境下建立了前向式并联混合动力汽车系统模型,通过仿真进行控制策略的辅助设计并验证了控制策略。当前开发的控制策略已经应用于实车,监测情况表明是实用的。

Based upon the engine efficiency map and battery internal resistance curve, a real-time control strategy is proposed for parallel hybrid electric vehicles (PHEVs) using the load leveling concept and logic threshold approach to control the torque distribution, various operation modes and the dynamical transitions between the modes for the hybrid powertrain. In the environment of the forward simulation system model of PHEVs developed using MATLAB/Simulink, the control algorithm is designed and tested with the aid of computer simulation. The present control strategy has been applied in the real vehicle and it is shown from monitoring and testing that control functions are practical.