The invention provides a predictive intelligent energy management method and system for a hybrid electric vehicle, and relates to the technical field of hybrid electric vehicle energy management. Comprising the steps of dynamically obtaining vehicle front working condition data including distance, vehicle speed and gradient information of a future predicted road section, and calculating the average vehicle speed and average gradient of the future predicted road section; based on the average vehicle speed and the average gradient of a predicted road section in the future, the total energy consumed by the system is calculated in combination with the boundary information and the power demand of the whole vehicle, and the target SOC is dynamically predicted in real time in combination with the expected SOC of the vehicle; and on the basis of the current vehicle SOC and the predicted target SOC, a system charging demand is formed, an economic point operation curve corresponding to the system charging demand is selected in an efficient area of the engine, and power following operation is carried out. According to the method, the target SOC is dynamically predicted in real time by adopting the front working condition data of the vehicle, so that the engine power dynamically follows the system charging demand obtained based on the target SOC, and the method has good working condition adaptability and power guarantee.
本发明提出了混合动力汽车预测性智能能量管理方法及系统,涉及混合动力汽车整车能量管理技术领域。包括动态获取车辆前置工况数据,包括未来一个预测路段的距离、车速和坡度信息,并计算未来一个预测路段的平均车速和平均坡度;基于未来一个预测路段的平均车速和平均坡度、结合整车边界信息及功率需求,计算系统消耗总能量,并结合车辆期望SOC,实时动态预测目标SOC;基于当前车辆SOC和预测出的目标SOC,形成系统补电需求,在发动机的高效区选取与系统补电需求对应的经济点运行曲线,进行功率跟随运行。本发明采用车辆前置工况数据去实时动态预测目标SOC,使发动机功率动态跟随基于目标SOC得出的系统补电需求,具有很好的工况适应性和保电性。
Predictive intelligent energy management method and system for hybrid electric vehicle
混合动力汽车预测性智能能量管理方法及系统
2024-05-14
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 |
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