The invention relates to a method for realizing ramp detection treatment on a battery electric vehicle. The method comprises the following steps of: carrying a six-axis gyroscope chip, and acquiring triaxial acceleration and triaxial angular velocity; calculating a first slope through a signal acquired by a gyroscope; calculating a second slope through vehicle dynamics; and selecting a confidencefactor according to a current vehicle speed, and calculating the slope value of a road where the current vehicle is located through the first slope, the second slope and the confidence factor. By adopting the method for realizing ramp detection treatment on the battery electric vehicle, the slope of the road where the vehicle is located is calculated in real time, and the battery electric vehiclecan calculate an optimal gear according to slope information. And the slope recognition precision of the battery electric vehicle is improved, the vehicle can precisely control the gear of a gearbox,and popularization of the battery electric vehicle is facilitated. The improvement of the slope recognition precision can solve the problem of frequent gear shifting of the battery electric vehicle ona ramp, and the comfort of the battery electric vehicle is improved.

    本发明涉及一种针对纯电动汽车实现坡道检测处理的方法,包括以下步骤:搭载6轴陀螺仪芯片,采集三轴加速度和三轴角速度;通过陀螺仪采集的信号计算得到第一坡度;通过车辆动力学计算得到第二坡度;根据当前车速选取置信因子,通过第一坡度、第二坡度和置信因子计算得到当前车辆所在路面坡度值。采用了本发明的针对纯电动汽车实现坡道检测处理的方法,实时的计算出车辆所在道路的坡度可以让纯电动车辆根据坡度信息计算出最佳档位。提高纯电动车辆坡度识别的精度,有利于车辆精确的控制变速箱的档位,有利于纯电动车的推广。坡度识别精度的提升,可以解决纯电动汽车在坡道上频繁换挡的问题,提高纯电动车辆的舒适性。


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    Titel :

    Method for realizing ramp detection treatment on battery electric vehicle


    Weitere Titelangaben:

    针对纯电动汽车实现坡道检测处理的方法


    Beteiligte:
    LYU AO (Autor:in) / LIU ZHENGHUI (Autor:in) / LIN LI (Autor:in)

    Erscheinungsdatum :

    2020-06-09


    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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