The invention discloses a self-adaptive hybrid power energy management method based on demand power prediction, and belongs to the field of hybrid electric vehicle energy management, and the method comprises the steps: 1, based on the historical information of a fixed route and the positioning information of a navigation system, utilizing an improved LSTM (Long-Short-Term Memory) to carry out power demand prediction on the basis of the historical information of the fixed route and the positioning information of the navigation system; carrying out certain time domain prediction on the vehicle speed and the required power of the fixed commuting vehicle through an LSTM (Long Short Term Memory) algorithm; 2, establishing an energy consumption minimum solving problem in a short time domain by estimating a required power range of a certain time domain, and solving an optimal basic equivalent factor sequence by using a particle swarm algorithm of adaptive weight; 3, equivalent factors under different required powers are corrected by considering the SOC and the temperature of the battery, an equivalent factor correction MAP is constructed through offline simulation and real vehicle calibration, and the equivalent factors are adjusted online in real time; 4, after the determined equivalent factors are obtained, an ECMS strategy is executed to determine the optimal output torque of the engine and the optimal output torque of the motor; according to the invention, the energy management control is close to global optimum, and the economic performance and working condition adaptability of the vehicle can be improved.
本发明公开了一种基于需求功率预测的自适应混合动力能量管理方法,属于混合动力汽车能量管理领域,该方法包括:1.基于固定路线的历史信息和导航系统的定位信息,利用改进的LSTM(Long Short‑Term Memory,LSTM)算法对固定通勤的车辆车速与需求功率进行一定时域的预测;2.通过预估一定时域的需求功率范围,创建短时域内的能耗最小求解问题,利用自适应权重的粒子群算法求解最优基础等效因子序列;3.考虑电池SOC以及温度对不同需求功率下的等效因子进行修正,通过离线仿真和实车标定构建等效因子修正MAP,在线实时调整等效因子;4.获取确定的等效因子后,执行ECMS策略确定最优的发动机和电机的输出扭矩;本发明可使能量管理控制接近全局最优,能够改善车辆的经济性能和工况适应性。
Self-adaptive hybrid power energy management method based on demand power prediction
一种基于需求功率预测的自适应混合动力能量管理方法
14.02.2025
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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