The invention belongs to the field of automobile automatic driving, and particularly relates to a downhill control method for an automobile self-adaptive cruise system. After the ACC function is activated, the ACC controller receives cruise speed set by a driver, gradient information, negative torque information provided by a power assembly and the like in real time, assumes that the vehicle keeps longitudinal balance on a ramp under the action of the negative torque provided by the power assembly according to longitudinal dynamics of the vehicle, calculates the cruise speed at the moment, and considers the increment of the cruise speed. When the set condition is satisfied, the ACC will enter a ramp mode, and the cruise vehicle speed calculated in the ramp mode is used as a control target. The problems of discomfort and unsafety caused by snub braking or continuous braking during ACC downhill cruising are solved, the riding experience of a driver and passengers using an ACC system is improved, and the probability of traffic accidents can be reduced.

    本发明属于汽车自动驾驶领域,具体涉及一种汽车自适应巡航系统下坡控制方法。ACC功能被激活后,ACC控制器实时接收驾驶员设定巡航车速,坡度信息,动力总成提供的负扭矩信息等,根据车辆纵向动力学,假定车辆在动力总成提供的负扭矩作用下在坡道上保持纵向平衡,计算出此时的巡航车速,并考虑巡航车速增量,在满足所设定的条件时,ACC将进入坡道模式,并将坡道模式计算出的巡航车速作为控制目标。本发明解决了ACC下坡巡航时点刹或持续刹车带来的不舒适和不安全的问题,提高了驾驶员及乘客使用ACC系统的乘坐体验,并可减少交通事故发生的概率。


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    Titel :

    Downhill control method and system for automobile self-adaptive cruise system


    Weitere Titelangaben:

    一种汽车自适应巡航系统下坡控制方法及系统


    Beteiligte:
    LI JIACHENG (Autor:in) / PEI SHUANGHONG (Autor:in) / YANG SHIHUI (Autor:in) / LI XIANGYI (Autor:in) / BAI GUOQIANG (Autor:in)

    Erscheinungsdatum :

    2022-09-06


    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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