摘要
混合动力汽车的能量管理策略对整车的燃油经济性具有重要的影响。本文建立了串联插电式混合动力汽车各部件及整车仿真模型,以电池荷电状态为控制变量,以燃油经济性为控制目标,基于逻辑门限控制策略进行能量分配。仿真结果表明,所提出的能量管理策略可以实现良好的燃油经济性,与传统的CD-CS策略相比,降低油耗2.49%,有效提高了燃油经济性。
The energy management control strategy of hybrid electric vehicles(HEVs) plays an important role in fuel economy optimization.In this paper,the powertrain components and the whole vehicle model ofa series plug-inHEV(PHEV) are modeled and simulated.The battery state of charge(SOC) isconsidered as thecontrol variableand alogic threshold based strategy is proposed to realize the energy management for the series PHEV with the target of optimizing the fuel economy.Simulation results provethat the proposed strategyis feasible and effective toimprove thefuel economy.The final fuelconsumption can be reduced by 2.49% compared with that of traditional charge-depleting(CD) and charge-sustaining(CS) control strategy.
引文
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