The invention provides a reference vehicle speed estimation method and device under a ramp braking condition. The method comprises the steps that the actual wheel speed of a target vehicle and the acceleration detection value of a vehicle acceleration sensor are obtained; determining the wheel attachment state of the target vehicle according to the actual wheel speed; determining an estimated wheel speed of the target vehicle according to the wheel attachment state; estimating a reference vehicle speed initial value of the target vehicle according to the estimated wheel speed and the wheel attachment state; calculating an estimation error according to the reference vehicle speed initial value; and calculating the current vehicle body acceleration of the target vehicle according to the estimation error and the acceleration detection value. Therefore, the method and the device can be used for estimating the reference vehicle speed under the ramp working condition, and are good in applicability and small in estimation error.

    本申请提供一种坡道制动工况的参考车速估算方法及装置,该方法包括:获取目标车辆的实际车轮轮速和车辆加速度传感器的加速度检测值;根据实际车轮轮速确定目标车辆的车轮附着状态;根据车轮附着状态确定目标车辆的估算车轮轮速;根据估算车轮轮速和车轮附着状态估算目标车辆的参考车速初始值;根据参考车速初始值计算估算误差;根据估算误差和加速度检测值,计算目标车辆的当前车体加速度。可见,该方法及装置能够进行坡道工况的参考车速估算,适用性好,估算误差小。


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    Titel :

    Reference vehicle speed estimation method and device under ramp braking condition


    Weitere Titelangaben:

    一种坡道制动工况的参考车速估算方法及装置


    Beteiligte:
    LUO JINGWEI (Autor:in) / YI HAIXIA (Autor:in) / YANG JIA (Autor:in) / LIANG WANWU (Autor:in) / HE ZONGQUAN (Autor:in)

    Erscheinungsdatum :

    2023-05-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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