The invention discloses a driving force distribution method for an extended-range type hybrid power system of an electric drive axle semi-trailer tractor, and belongs to the field of hybrid power vehicle control. On the basis of the structure of the electric drive axle semi-trailer tractor, an ideal condition which should be met by driving force distribution is provided. When the whole vehicle is in a combined driving mode, the traction vehicle head and the electric drive trailer provide driving force at the same time, and when the driving force is increased too fast, the wheels slip. In the driving force distribution method provided by the invention, through a derivation formula and reasonable hypothesis simplification, the condition for enabling the wheels to have the optimal slip ratio can be obtained, so that the optimal driving force distribution is realized, and meanwhile, the corresponding relation between the optimal slip ratio and the maximum utilization adhesion coefficient of the wheels can be solved; the method has guiding significance for subsequent design of vehicles with the same configuration.

    本发明公开了一种电驱桥半挂牵引车增程式混动系统的驱动力分配方法,属于混合动力车辆控制领域。本发明在电驱桥半挂牵引车的构型基础上,提出了一种理想的驱动力分配应当满足的条件。当整车处于联合驱动模式时,牵引车头和电驱挂车同时提供驱动力,在驱动力增长过快时,车轮会发生滑转。在本文所提的驱动力分配方法中,通过推导公式与合理的假设简化,可以获得使车轮具有最佳滑转率的条件,从而实现最佳的驱动力分配,同时可以求得最佳滑转率与车轮最大利用附着系数之间的对应关系,对后续相同构型的车辆的设计有指导意义。


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    Title :

    Driving force distribution method for extended-range type hybrid power system of electric drive axle semi-trailer tractor


    Additional title:

    一种电驱桥半挂牵引车增程式混动系统的驱动力分配方法


    Contributors:
    ZENG XIAOHUA (author) / LIU ZHIYUAN (author) / SONG DAFENG (author) / WANG YUNYE (author) / LIU JIANHUA (author) / YU DELONG (author) / ZHANG YUNHE (author) / YANG CHUNHUA (author)

    Publication date :

    2023-12-26


    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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