The invention provides a hybrid electric vehicle ecological path method based on traffic flow classification, and the method comprises the following steps: constructing a city map model according to the positions of a starting place and a destination of a driver, so as to achieve the division of intersections and road sections of a map; reading real-time traffic flow data of each link of a city, setting a logic specification, performing low-medium-high classification on the links according to speed factors, and configuring specific vehicle circulation working conditions for the links; calculating the unit cost of each link through an indirect method by utilizing an improved engine model according to the link circulation working condition; and constructing an ecological path mixed integer nonlinear programming framework, and tracking residual energy of an end node of a candidate path by using an improved Dijktra algorithm to find an ecological path. According to the method, the actual traffic flow influence is considered, the actual condition of vehicle driving is better met, the traffic flow is classified and different working conditions are given, dynamic decoupling of the traffic flow is ingeniously achieved, hybrid electric vehicle ecological path selection and energy management collaborative optimization of a power system are achieved, and the real-time performance of the method is higher.

    本发明提出了基于交通流分类的混合动力汽车生态路径方法,包括以下步骤:根据驾驶员始发地及目的地位置,构建所在城市地图模型,以实现地图的路口和路段划分;读取城市各链路实时交通流数据,设置逻辑规格,根据速度因子对链路进行低中高分类,并对其配置特定的车辆循环工况;依据链路循环工况,利用改进发动机模型,通过间接方法计算各链路单位代价;构建生态路径混合整数非线性规划框架,利用改进Dijktra算法,跟踪候选路径结束节点的剩余能量,寻找生态路径。该方法考虑了实际交通流影响,更加符合车辆行驶的实际情况,通过将交通流分类并赋予不同工况,巧妙实现了交通流的动态解耦,实现了混合动力汽车生态路径选择和动力系统的能量管理协同优化且方法实时性更强。


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    Titel :

    Hybrid electric vehicle ecological path method based on traffic flow classification


    Weitere Titelangaben:

    基于交通流分类的混合动力汽车生态路径方法


    Beteiligte:
    CHEN YANMEI (Autor:in) / SONG WEI (Autor:in) / ZHANG AILEI (Autor:in) / YE JIN (Autor:in) / NI YIMING (Autor:in) / GAO LIMING (Autor:in)

    Erscheinungsdatum :

    2022-08-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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