The invention provides a hybrid electric vehicle energy management method based on multi-source information fusion, and belongs to the field of hybrid electric vehicle energy management. The method comprises the following steps: constructing a future long-term driving condition of a vehicle in combination with traffic information of a current driving road section of the vehicle, predicting to obtain a vehicle speed time relation curve of the whole travel of the vehicle, solving a target function of a power battery SOC by taking the vehicle speed time relation curve as a constraint, and predicting to obtain a reference track of the power battery SOC of the whole travel of the vehicle; predicting to obtain future short-term vehicle speed data of the vehicle by combining the actual vehicle speed, the preceding vehicle speed and the relative distance between the vehicle and the preceding vehicle at the current moment; and predicting the future engine output torque and power battery outputpower of the vehicle by combining the actual SOC of the power battery, the reference track of the SOC of the power battery and the future short-term vehicle speed data of the vehicle. According to theinvention, the long-term driving condition and the short-term driving condition of the vehicle are comprehensively considered, and the formulated vehicle energy management scheme is more reasonable.
本发明提供了一种基于多源信息融合的混合动力汽车能量管理方法,属于混合动力汽车能量管理领域。该方法包括:结合车辆当前行驶路段的交通信息构建车辆未来的长期行驶工况,预测得到车辆整个行程的车速‑时间关系曲线,以所述车速‑时间关系曲线为约束求解动力电池SOC的目标函数预测得到车辆整个行程的动力电池SOC的参考轨迹;结合当前时刻的车辆实际车速、前车车速以及自车与前车之间的相对距离,预测得到车辆未来短期的车速数据;结合动力电池的实际SOC、动力电池SOC的参考轨迹和车辆未来短期的车速数据,预测得到车辆未来的发动机输出转矩和动力电池输出功率。本发明综合考虑了车辆长期行驶工况和短期行驶工况,所制定的车辆能量管理方案更加合理。
Hybrid electric vehicle energy management method based on multi-source information fusion
一种基于多源信息融合的混合动力汽车能量管理方法
2021-02-05
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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