The invention discloses plug-in hybrid electric vehicle battery electric quantity trajectory planning method and system. The method comprises the following steps: acquiring a predicted vehicle speed and a road slope on a driving path based on an ITS system and a navigation system; clustering the predicted vehicle speed and the road gradient based on an ordered sample clustering algorithm; combining the clustered predicted vehicle speed and road gradient, dividing the driving path into multiple sections of road sections, and enabling the predicted vehicle speed and the road gradient in each section of road section to be consistent in characteristics; and planning a vehicle battery SoC track according to the multiple sections of road sections and the corresponding predicted vehicle speeds and road gradients; then carrying out clustering according to the predicted vehicle speed and the road gradient, then merging the clustered results to divide the path into multiple sections of road sections, and generating an SoC reference track according to the energy requirements of different road sections. Compared with an existing global dynamic planning algorithm or a neural network and the like, due to the SoC track approximating to global optimization, the calculation amount is low, real-time refreshing can be achieved according to the traffic change condition, the robustness is high, andthe energy-saving potential is better achieved when the method is applied to energy management control.
本发明公开了一种插电式混合动力汽车电池电量轨迹规划方法及系统,其中方法包括:基于ITS系统及导航系统获取行驶路径上的预测车速及道路坡度;基于有序样本聚类算法分别对预测车速及道路坡度进行聚类;将聚类后的预测车速及道路坡度进行合并,将行驶路径分割为多段路段,且每段路段内的预测车速和道路坡度特征一致;根据多段路段及其对应的预测车速和道路坡度规划出车辆电池SoC轨迹。根据预测车速及道路坡度进行聚类,然后合并从而将路径分割为多段路段,再据不同路段能量需求生成SoC参考轨迹;接近全局最优的SoC轨迹,较现有全局动态规划算法或神经网络等计算量较低,可据交通变化状况实时刷新,鲁棒性高,应用到能量管理控制中更具有节能潜力。
Plug-in hybrid electric vehicle battery electric quantity trajectory planning method and system
一种插电式混合动力汽车电池电量轨迹规划方法及系统
2020-08-28
Patent
Electronic Resource
Chinese
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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