一种混联式HEV瞬时优化监控策略的研究

以一种新型混联式混合动力电动汽车为具体对象，研究以瞬时等效燃油经济性为优化目标的能量管理监控策略。通过基于混合动力电动汽车整车及动力总成相关数学模型所建立的MATLAB／Simulink仿真优化平台，搜寻出了全部转速一转矩需求条件下动力总成各元件的理想能量分配及相应挡位，以MAP图的形式存储于车载监控器中。监控器根据混合动力电动汽车荷电保持的设计要求，按瞬时工况调用这些MAP图，以简单查表计算方式对理想值实时地作适当修正和调整。监控策略的有效性、实时性通过若干典型行驶工况仿真及实车应用得以证实，展现出良好的实用价值。

Study on Instantaneous Optimal Supervisory Control Strategy for a Series-parallel HEV

A new type of series-parallel combined hybrid electrical vehicle(HEV) was taken as the study subject,adopting a supervisory control strategy for energy management with the instantaneous equivalent fuel consumption as objective function.Based on the math models related to the entire vehicle and its powertrain,a MATLAB/Simulink simulation platform was built up,to theoretically search ideal maps of power distribution among powertrain's elements vs HEV's possible speed-torque sets and the corresponding gearshifts,which were then stored in the HEV's onboard supervisory controller.Data were looked up from the maps by the controller based on the instantaneous driving conditions,and were simply but properly modified according to the preset charge-sustaining requirements.Validity and real time responsibility of the supervisory control strategy are proved by simulations with several typical driving cycles,and are further confirmed by application aboard the HEV,revealing good practicability of the strategy.