The invention discloses a slope control method for an electro-hydraulic mechanical automatic transmission. The slope control method specifically comprises the following steps that firstly, the estimated acceleration of a whole vehicle is calculated; 2, calculating the actual acceleration of the whole vehicle; 3, calculating an acceleration difference value between the estimated acceleration of the whole vehicle and the actual acceleration of the whole vehicle; and 4, comparing the acceleration difference value with a preset threshold value, judging whether the slope mode switching is activated or not, and if yes, performing corresponding gear shifting switching according to different slope mode switching. According to the control method, the difference value between the estimated acceleration of the whole vehicle and the actual acceleration of the vehicle is calculated, different gear shifting switching modes are judged to be adopted by setting the difference value, and then the slope driving requirement is met.

    本发明公开了一种电液机械式自动变速器的坡路控制方法,具体包括如下步骤:步骤一:计算整车预估加速度;步骤二:计算整车实际加速度;步骤三:计算整车预估加速度与整车实际加速度的加速度差值;步骤四:将加速度差值与预设门限值进行比较,判断坡路模式切换是否激活,若激活,则根据不同的坡路模式切换,进而采取相应的换挡切换。该控制方法通过对整车预估加速度和车辆实际加速度的差值进行运算,通过对差值大小的设定,判断采取不同的换挡切换模式,进而满足坡路驾驶需求。


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    Titel :

    Slope control method of electro-hydraulic mechanical automatic transmission


    Weitere Titelangaben:

    一种电液机械式自动变速器的坡路控制方法


    Beteiligte:
    HOU CHENGWEI (Autor:in) / XU MING (Autor:in) / CHEN GUOQIANG (Autor:in) / WANG KE (Autor:in) / LI YANG (Autor:in) / AN JIE (Autor:in) / WANG LONG (Autor:in)

    Erscheinungsdatum :

    2022-11-25


    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



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