基于等效燃油消耗最小算法的并联式混合动力卡车控制策略

Control Strategy of Parallel Hybrid Electric Truck Based on ECMS Algorithm

为提高混合动力卡车燃油经济性,解决等效燃油消耗最小策略实时性差的问题,针对某款混合动力卡车,在基于逻辑门限值控制策略基础上,结合等效燃油消耗最小策略( equivalent consumption minization strategies,ECMS),制定等效因子,引入电池电荷状态( state of charge,SOC)平衡策略,建立了基于 ECMS 算法的门限值控制策略,既保证了算法的实时性,又提升了控制效果。仿真结果表明,相比于门限值的能量管理策略时的百公里油耗,燃油经济性提升 5. 96%,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。

In order to improve the fuel economy of hybrid truck and solve the poor real-time performance of equivalent fuel consumption minimization strategy ( ECMS),the improved ECMS control strategy based on parallel hybrid electric truck was established. The equivalent factor and the SOC( state of charge) balance strategy were obtained based on logic threshold control strategy. The real-time performance and control effect were improved. Compared with the energy management strategy of the threshold,the fuel economy is increased by 5. 96%. The results show that the proposed control strategy can assure better fuel economy and maintain battery SOC balance.