The invention relates to a plug-in hybrid electric vehicle energy management method based on multivariate information fusion. The method comprises the steps that an adaptive fuzzy inference system model, a vehicle speed sequence prediction model and an SOC reference trajectory estimator are obtained; calculating a transmission ratio of a gearbox at the current moment, a vehicle speed prediction sequence in a future limited time domain and an SOC final value in the future limited time domain in real time, and performing rolling optimization in the limited time domain based on a Pontryagin minimum principle to obtain a reference co-state variable in the time domain; and if the rolling optimization has a solution, performing open-loop Pontryagin minimum optimization in a subsequent control domain by using the reference co-state variable to obtain a corresponding control set, and if the rolling optimization has no solution, executing an SOC following strategy. Compared with the prior art, gearbox transmission ratio selection and torque distribution are jointly brought into the energy management category, multiple driving information is fused, a rolling optimization and SOC following double-layer strategy is provided, and the energy management strategy effect of the plug-in hybrid electric vehicle is effectively improved.

    本发明涉及一种基于多元信息融合的插电式混合动力汽车能量管理方法,包括:获取自适应模糊推理系统模型、车速序列预测模型和SOC参考轨迹估计器;实时计算当前时刻变速箱传动比、未来有限时域内的车速预测序列和未来有限时域内的SOC终值,基于庞特里亚金极小值原理进行有限时域内的滚动优化,得到该时域内的参考协态变量;若滚动优化有解,则利用参考协态变量在后续控制域内进行开环庞特里亚金极小值优化,得到相应的控制集,若滚动优化无解,则执行SOC跟随策略。与现有技术相比,本发明将变速箱传动比选取和转矩分配共同纳入能量管理的范畴,并融合多元行驶信息,提出了滚动优化与SOC跟随双层策略,有效提高了插电式混合动力汽车能量管理策略效果。


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    Titel :

    Plug-in hybrid electric vehicle energy management method based on multivariate information fusion


    Weitere Titelangaben:

    基于多元信息融合的插电式混合动力汽车能量管理方法


    Beteiligte:
    HU ZHIYUAN (Autor:in) / WANG ZHUO (Autor:in) / TAN PIQIANG (Autor:in) / LOU DIMING (Autor:in)

    Erscheinungsdatum :

    2022-12-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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 / G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen



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