The invention discloses a variable-equivalent-factor hybrid electric vehicle energy management method based on working condition recognition. The method comprises the steps of working condition construction, equivalent factor numerical library construction, working condition recognition and variable-equivalent-factor hybrid electric vehicle energy management. According to the real vehicle data of the hybrid electric vehicle, a principal component analysis method and a K-means algorithm are used for fitting four kinds of working condition constructions including a comprehensive working condition, a congestion working condition, a relatively congestion working condition and a smooth working condition; constructing a working condition recognition model based on a principal component analysis method and a K-means algorithm to perform real-time working condition recognition; performing off-line global optimization by using a particle swarm algorithm to obtain optimal equivalent factors under different working condition categories and different battery SOCs, and constructing an equivalent factor numerical library; and performing variable equivalent factor hybrid electric vehicle energy management by using an equivalent fuel consumption minimum strategy. The method is used for rapidly selecting the optimal equivalent factor based on the actual working condition through the ECMS strategy, and the fuel economy of the hybrid electric vehicle is further improved.

    一种基于工况识别的变等效因子混合动力汽车能量管理方法,包括工况构建、等效因子数值库构建、工况识别以及变等效因子混合动力汽车能量管理;根据混合动力汽车实车数据,利用主成分分析法和K‑means算法拟合出综合工况、拥堵工况、较拥堵工况以及通畅工况四种类别的工况构建;基于主成分分析法和K‑means算法构建工况识别模型进行实时的工况识别;利用粒子群算法离线全局优化以获得不同工况类别和不同电池SOC下的最优等效因子进行等效因子数值库构建;使用等效燃油消耗最小策略进行变等效因子混合动力汽车能量管理。本发明用于实现ECMS策略基于实际工况快速选取最优等效因子,进一步提高混合动力汽车的燃油经济性。


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    Title :

    Variable equivalent factor hybrid electric vehicle energy management method based on working condition identification


    Additional title:

    一种基于工况识别的变等效因子混合动力汽车能量管理方法


    Contributors:
    GAO AIYUN (author) / LIU SHAOHUA (author) / FU ZHUMU (author) / TAO FAZHAN (author) / SI PENGJU (author) / GAO SONG (author) / ZHANG PING (author)

    Publication date :

    2022-03-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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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