The invention discloses a fuel cell hybrid electric vehicle energy management method considering energy recovery efficiency, and belongs to the field of fuel cell hybrid electric vehicle control. The fuel cell hybrid electric vehicle energy management method considering the energy recovery efficiency aims at solving the problem that a rule-based energy management strategy has an energy-saving space, and the rule-based energy management strategy is improved. According to the method, the required power needs to be calculated, the optimal output power, generated through the PMP algorithm, of the power battery is drawn into a graph, data of working modes under different powers and SOCs are obtained, and the relation graph of the output power of the power battery and the SOC of the power battery is divided into different modes through a clustering method; and distributing the output power of the fuel cell and the power cell according to the value of the required power and the set distribution scheme to obtain the output power of the fuel cell and the power cell. According to the method, the rule-based energy management strategy is guided by using the Pontryagin maximum principle, so that the optimization effect of the improved energy management strategy is close to the optimal effect, and the braking energy recovery rate is expressed through a rational fraction fitting method, so that the actual energy recovery condition is better met.
一种考虑能量回收效率的燃料电池混合动力汽车能量管理方法,属于燃料电池混合动力汽车控制领域。本发明的目的是针对基于规则的能量管理策略具有节能空间的问题,对基于规则的能量管理策略进行改进的考虑能量回收效率的燃料电池混合动力汽车能量管理方法。本发明需要计算出需求功率,将PMP算法产生的动力电池的最优输出功率绘制成图,得到不同功率、SOC下的工作模式的数据,并通过聚类的方法将动力电池输出功率和动力电池SOC的关系图划分出不同的模式,根据需求功率的值按照设置好的分配方案对燃料电池和动力电池的输出功率进行分配之后,得到燃料电池和动力电池的输出功率。本发明用庞特里亚金极大值原理指导基于规则的能量管理策略,使改进后能量管理策略的优化效果接近最优的效果,并且通过有理分式拟合的方法表达出制动能量回收率,更加的符合实际能量回收的情况。
Fuel cell hybrid electric vehicle energy management method considering energy recovery efficiency
考虑能量回收效率的燃料电池混合动力汽车能量管理方法
2023-05-12
Patent
Elektronische Ressource
Chinesisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES |
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