The embodiment of the invention relates to adaptive braking mode selection. Methods, systems, and apparatus related to methods of controlling an unmanned vehicle, particularly an unmanned diesel engine truck, are disclosed. In one example aspect, the method includes determining an available engine brake torque generation mechanism for reducing a current speed of the autonomous vehicle to a lower speed and selecting a brake mode corresponding to the engine brake torque availability. In case a rate of speed reduction is equal to or smaller than a threshold, the brake mode includes only an engine brake in which engine exhaust valve opening is adjusted for reducing the current speed. The threshold determined in part based on the available engine brake torque, gear position of the transmission, and the online estimated vehicle longitudinal dynamic model. In case the rate of speed reduction is greater than the threshold, the brake mode includes a combination of the engine brake and the foundation brake.

    本公开的各实施例涉及自适应制动模式选择。公开了与控制无人驾驶车辆,特别是无人驾驶柴油发动机卡车的方法有关的方法、系统和设备。在一个示例方面,该方法包括确定用于将无人驾驶车辆的当前速度减小到较低速度的可用发动机制动扭矩产生机构,并且选择与发动机制动扭矩可用性相对应的制动模式。在减速率等于或小于阈值的情况下,制动模式仅包括发动机排气阀门开度被调节以减小当前速度的发动机制动。该阈值部分地基于可用发动机制动扭矩、变速器的档位和在线估计的车辆纵向动态模型而被确定。在减速率大于阈值的情况下,制动模式包括发动机制动和基础制动的组合。


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    Titel :

    Adaptive brake mode selection


    Weitere Titelangaben:

    自适应制动模式选择


    Beteiligte:
    JING JUNBO (Autor:in) / KURT ARDA (Autor:in) / CHEMIN CAROLINE (Autor:in) / SHAO TIANQU (Autor:in) / SUN HAOMING (Autor:in)

    Erscheinungsdatum :

    2021-08-13


    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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