The invention discloses a fuel cell vehicle energy-saving driving method and system based on convex optimization. The method comprises the steps that hydrogen consumption of a fuel cell vehicle running at a constant speed at different speeds is obtained, and a static hydrogen consumption diagram is drawn; acquiring traffic information of a driving route of the fuel cell vehicle; according to the static hydrogen consumption diagram and the traffic information, determining an optimal green light window for driving of the fuel cell vehicle, and determining a search area of an optimal driving path according to the optimal green light window; taking the minimum total demand power of the fuel cell vehicle as an optimization target, establishing a convex programming model in combination with the search area, and determining an optimal driving path and an optimal vehicle speed track of the fuel cell vehicle according to the convex programming model; and determining the output power of each power source of the fuel cell vehicle by adopting an energy management method based on an alternating direction multiplier method according to the optimal vehicle speed track. According to the method, vehicle speed planning of multiple signal lamps can be rapidly completed, and the energy-saving effect is good.

    本发明公开了一种基于凸优化的燃料电池汽车节能驾驶方法及系统,方法包括获取燃料电池汽车在不同速度下匀速行驶的耗氢量并绘制静态氢耗图;获取燃料电池汽车行车路线的交通信息;根据静态氢耗图和交通信息,确定燃料电池汽车行驶的最优绿灯窗口,并根据最优绿灯窗口确定最优行驶路径的搜索区域;以燃料电池汽车总需求功率累计最小为优化目标,结合搜索区域建立凸规划模型,根据凸规划模型确定燃料电池汽车的最优行驶路径及最优车速轨迹;根据最优车速轨迹,采用基于交替方向乘子法的能量管理方法,确定燃料电池汽车各个动力源的输出功率。本发明方法可快速完成多个信号灯的车速规划且节能效果佳。


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    Titel :

    Fuel cell automobile energy-saving driving method and system based on convex optimization


    Weitere Titelangaben:

    基于凸优化的燃料电池汽车节能驾驶方法及系统


    Beteiligte:
    WEI XIAODONG (Autor:in) / LU CHENG (Autor:in) / WANG JUNJIE (Autor:in) / HE JIE (Autor:in)

    Erscheinungsdatum :

    2022-05-13


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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