The invention provides a hybrid electric vehicle energy management system and method considering user travel characteristics, and the system comprises an offline module and an online module, and comprises the following steps: the offline part obtains the average vehicle speed and vehicle speed standard deviation of a road section where a vehicle runs and user charging data by using a vehicle-road communication technology (V2I); and searching the change rule of the equivalent factor through a dynamic programming algorithm. According to the online part, the remaining travelled distance of a user is predicted through a neural network, the real-time battery state of charge (SOC) change is combined, a fuzzy controller is adopted to plan the battery state of charge (SOC), an equivalent factor is predicted through the neural network and input into a torque distribution module, and the most reasonable torque distribution of an engine and a generator can be obtained. Road condition information and user charging habits are integrated into the electric quantity planning process, energy waste caused by road condition changes on roads and different user charging habits of the vehicle is avoided, and therefore the fuel economy of the hybrid electric vehicle is improved, and energy consumption is reasonably arranged.
本发明提供考虑用户出行特征的混合动力汽车能量管理系统及方法,包括离线模块和在线模块,包括以下步骤:离线部分利用车路通信技术(V2I)得到汽车所行驶路段的平均车速和车速标准差以及用户充电数据,通过动态规划算法寻找等效因子的变化规律。在线部分通过神经网络预测用户剩余行驶里程,结合实时电池荷电状态(SOC)变化,采用模糊控制器规划电池荷电状态(SOC),再通过神经网络预测等效因子并输入到转矩分配模块,即可得到发动机和发电机最合理的转矩分配,将路况信息和用户充电习惯融入到电量规划的过程中,避免汽车因在道路上的路况变化和用户充电习惯不同所造成的能量浪费,从而提高混合动力汽车的燃油经济性,合理安排能源消耗。
Hybrid electric vehicle energy management system and method considering user travel characteristics
考虑用户出行特征的混合动力汽车能量管理系统及方法
2024-04-12
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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