The invention relates to a fuel cell automobile energy management method based on predictive nonlinear model control, which comprises the following steps: establishing a predictive model based on an optimized Markov chain according to historical motion information of an automobile; obtaining the current motion information of the vehicle, predicting the running state of the vehicle in a future limited time domain on line based on the prediction model, and adaptively updating the prediction model; establishing a fuel cell vehicle power system model, taking the vehicle running state in the prediction time domain as input, and outputting a vehicle demand power sequence; taking the vehicle demand power sequence in the prediction time domain as the input of a dynamic planning algorithm introducing a variable load penalty coefficient, and outputting an optimal power distribution sequence; and applying the optimal power distribution sequence to the vehicle, obtaining the current motion information of the vehicle again at the next moment, and carrying out prediction and optimization again until the vehicle stops. Compared with the prior art, the invention has the advantages of realizing the balance of economy and durability of the fuel cell automobile and the like.

    本发明涉及一种基于预测的非线性模型控制的燃料电池汽车能量管理方法,包括:根据车辆历史运动信息,建立基于优化马尔科夫链的预测模型;获取车辆当前运动信息,基于预测模型在线预测未来有限时域内的车辆运行状态,并自适应更新预测模型;建立燃料电池汽车整车动力系统模型,以预测时域内车辆运行状态作为输入,输出车辆需求功率序列;将预测时域内的车辆需求功率序列作为引入变载惩罚系数的动态规划算法的输入,输出最优功率分配序列;将最优功率分配序列施加给车辆,在下一时刻再次获取车辆当前运动信息,重新进行预测、优化,直到车辆停止。与现有技术相比,本发明具有实现了燃料电池汽车经济性和耐久性的平衡等优点。


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    Title :

    Fuel cell automobile energy management method based on predictive nonlinear model control


    Additional title:

    基于预测的非线性模型控制的燃料电池汽车能量管理方法


    Contributors:
    LIANG BOWEN (author) / GAO YUAN (author) / LIU JING (author) / ZHANG TONG (author)

    Publication date :

    2023-07-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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