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插电式混合动力汽车变参数能量管理策略

, PP. 112-118

Keywords: 汽车工程,插电式混合动力汽车,变参数能量管理策略,行驶里程模式识别,行驶工况识别

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Abstract:

?为进一步提高新型插电式混合动力汽车(PHEV)的整车经济性,考虑到影响整车经济性的2个主要因素--行驶工况和行驶里程,提出了变参数能量管理策略.为减小车辆行驶工况的影响,应用模糊欧几里德贴近度方法,建立了基于典型循环工况的车辆行驶工况识别控制策略;为减小车辆行驶里程的影响,应用模糊识别的方法,建立了以车辆行驶里程和车辆启动时的动力电池荷电状态(SOC)为输入,行驶里程模式为输出的车辆里程模式识别控制策略;最后对整车能量管理策略进行了仿真分析.结果表明:在同等行驶里程的新欧洲行驶循环(NEDC)工况下,与定参数能量管理策略相比,变参数能量管理策略可以降低整车等效百公里油耗5%以上,从而提高了PHEV的整车经济性.

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