The invention relates to a working condition identification method and system for a hybrid electric vehicle, and the method carries out working condition identification based on a fuzzy controller, and specifically comprises the steps: obtaining the characteristic parameters of vehicle driving; fuzzifying the characteristic parameters; obtaining a fuzzy judgment conclusion through fuzzy reasoning; performing defuzzification on the fuzzy judgment conclusion to obtain a specific working condition type; the design of the fuzzy controller comprises the steps of determining a working condition type; extracting characteristic parameters; and designing a fuzzification rule and a fuzzy inference rule of the characteristic parameters. Compared with the prior art, the method has the advantages that the vehicle motion parameters are analyzed, the driving condition type of the hybrid vehicle is effectively recognized through the designed fuzzy inference rule, the fuzzy controller has high robustness, few computing resources are occupied, the fuzzy controller does not need an accurate model of a controlled object, and the method is easy to implement. And the requirements of the hybrid electric vehicle on response speed and stability of the control system can be met.

    本发明涉及一种混动汽车工况识别方法及系统,基于模糊控制器进行工况识别,具体为:获取车辆行驶的特征参数;对特征参数进行模糊化;通过模糊推理得到模糊判断结论;对模糊判断结论进行解模糊,得到具体的工况类型;模糊控制器的设计包括:确定工况类型;提取特征参数;设计特征参数的模糊化规则和模糊推理规则。与现有技术相比,本发明通过对车辆运动参数进行分析,由设计的模糊推理规则有效识别混动汽车的行驶工况类型,模糊控制器具有较高的鲁棒性,占用的计算资源较少,模糊控制器不需要被控对象的精确模型,可以满足混合动力汽车对控制系统的响应速度和稳定性要求。


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    Title :

    Method and system for identifying working condition of hybrid electric vehicle


    Additional title:

    一种混动汽车工况识别方法及系统


    Contributors:
    LOU DIMING (author) / CHEN ZHILIN (author) / ZHANG YUNHUA (author) / FANG LIANG (author) / TAN PIQIANG (author) / HU ZHIYUAN (author)

    Publication date :

    2023-06-02


    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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