基于ECMS算法的能量管理策略研究

Research of Energy Management Strategy Based on ECMS Algorithm

控制策略是混合动力汽车的核心技术之一,直接影响了混合动力汽车的经济性、动力性等。本文以Prius混联式混合动力汽车为研究对象,进行ECMS算法的研究,对算法中的等效系数的确定以及等效系数的主动修正进行研究分析,先根据行驶工况确定参考等效系数,再根据电池SOC对等效系数进行调整,并在AVL/CRUISE中建立整车模型,在SIMULINK中设计了基于ECMS算法的控制策略,进行整车经济性的仿真分析,仿真结果表明所设计的控制策略能够在实现较好的燃油经济性的同时维持电池SOC的平衡。

Control strategy is one of the key technologies of ty. This article studies the ECMS control strategy based on HEVs, affecting the fuel economy and drivabilithe series-parallel HEVs, focusing on the calculation and tuning methods of the equivalent coefficient in ECMS. First determine the reference coefficient based on the recognition of the driving condition, then tune the equivalent coefficient according to the battery SOC, finally the ECMS control strategy is designed in SUMULINK, and vehicle model is built in AVL/CRUISE. The simulation results show that the proposed method can assure better fuel economy and charge sustaining of the SOC.