The invention discloses an anti-rollover vehicle speed control method and device for a commercial vehicle. The method comprises the steps that road information and vehicle structure parameters are obtained; determining the curvature radius of the road based on the road information, obtaining the track information of the vehicle when the curvature radius is greater than a set threshold value, and at least obtaining the front wheel turning angle information based on the track information; in the longitudinal speed direction of the vehicle, the vertical distance of a connecting line from the vehicle mass center to the road curvature center is determined based on vehicle structure parameters; calculating the driving speed at the current moment according to the driving state information of the vehicle at the current moment; determining a ground adhesion force provided by a ground tire based on the current vehicle speed; the maximum front wheel turning angle of the vehicle under the tire limit mechanical property and the road radius is determined; according to the mechanical property of the tire and the maximum front wheel rotating angle, the maximum limiting vehicle speed of the vehicle is determined, and the actual vehicle speed of the vehicle is controlled. Based on the anti-rollover safe vehicle speed model, the anti-rollover determination efficiency is high, and the vehicle driving stability is improved.
本申请公开了一种商用车防侧翻车速控制方法及装置,所述方法包括:获取道路信息和车辆结构参数;基于所述道路信息确定道路的曲率半径,在曲率半径大于设定阈值时,获取车辆的轨迹信息,基于所述轨迹信息至少得到前轮转角信息;在车辆纵向速度方向,基于车辆结构参数确定车辆质心到道路曲率中心的连线垂直距离;根据车辆当前时刻行驶状态信息,计算当前时刻的行驶车速;基于当前车速确定地轮胎所提供的地面附着力;确定车辆在轮胎极限力学特性和道路半径下最大的前轮转角;根据轮胎的力学特性以及最大的前轮转角,确定车辆的最大限制车速,实现对车辆实际车速的控制。本申请基于防侧翻安全车速模型,防侧翻确定效率较高,提升了车辆行驶稳定性。
Anti-rollover vehicle speed control method and device for commercial vehicle
商用车防侧翻车速控制方法及装置
28.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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