The invention relates to the technical field of electric power steering systems of automobiles and inhibition of power fluctuation, in particular to a steering system friction torque compensation method for continuous learning. The method comprises the following steps: locating a steering inflection point B of a steering wheel by calculating resultant torque Tsys acting on a steering system; and calculating an average value of resultant moment of the steering system in the process from a steering starting point A to the steering starting point B and an average value Tsys, avg2 of resultant moment in the process from a steering return starting point C to a steering return starting point D, calculating the self-learning friction moment Tfrie, learn of the steering system, and finally performing judgment and friction compensation on the hand moment of the steering wheel. The method has a continuous self-learning function; the abrasion of the steering system can be continuously detected and learned, the influence on the steering hand feeling can be eliminated, the hand feeling consistency of the electronic power steering system after long-time use is guaranteed, and the stability of the friction compensation torque is guaranteed.

    本发明涉及汽车的电动助力转向系统及其抑制助力波动技术领域,具体的讲是一种持续学习的转向系统摩擦力矩补偿方法,通过计算作用于转向系统的合力矩Tsys的大小,定位方向盘转向拐点B,计算转向起始点A到B过程中的转向系统合力矩的平均值以及转向回正起始点C到D过程合力矩的平均值Tsys,avg2,计算转向系统自学习摩擦力矩Tfrie,learn,最后对方向盘手力矩大小进行判断和摩擦补偿,本发明具有持续自学习功能,使得转向系统的磨损能够持续地被检测与学习,对转向手感的影响能有所消除,保证了电子助力转向系统长时间使用下的手感一致性,保证了摩擦补偿力矩的稳定性。


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    Titel :

    Steering system friction torque compensation method for continuous learning


    Weitere Titelangaben:

    一种持续学习的转向系统摩擦力矩补偿方法


    Beteiligte:
    ZHOU DAWEI (Autor:in) / WU GUANGYAO (Autor:in) / SUN RUI (Autor:in)

    Erscheinungsdatum :

    2021-03-05


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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