The invention discloses a hybrid electric vehicle real-time prediction energy management method based on convex programming, and relates to the related technical field of new energy automobiles, and the method specifically comprises the following steps: building a vehicle longitudinal dynamic model; establishing convex fitting models of the engine, the composite dual-rotor motor and the storage battery; establishing a global optimization problem of energy management; convex programming and dynamic programming are combined to solve the start-stop state of the engine and the output of each component; and finally, constructing real-time energy management based on model prediction control, and applying the real-time energy management to the composite dual-rotor motor hybrid electric vehicle. According to the method, on the premise of comprehensively considering the efficiency of each component, the solving efficiency of global optimization energy management of the hybrid electric vehicle with the composite dual-rotor motor is improved, so that the calculated amount when real-time energy management is realized by adopting model predictive control is greatly reduced.
本发明公开了一种基于凸规划的混合动力汽车实时预测能量管理方法,涉及新能源汽车相关技术领域,该方法具体包括如下步骤:建立整车纵向动力学模型;建立发动机、复合双转子电机和蓄电池的凸拟合模型;建立能量管理的全局优化问题;联合凸规划与动态规划,求解发动机的启停状态与各部件的出力;最后,构建基于模型预测控制的实时能量管理,将其应用于复合双转子电机混合动力汽车中。本发明在综合考虑各部件效率的前提下,提升了复合双转子电机混合动力汽车全局优化能量管理的求解效率,从而大幅降低了采用模型预测控制实现实时能量管理时的计算量。
Hybrid electric vehicle real-time prediction energy management method based on convex programming
基于凸规划的混合动力汽车实时预测能量管理方法
2023-12-26
Patent
Electronic Resource
Chinese
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