The invention discloses a method for estimating a vehicle running stable area under complex road conditions, and belongs to the technical field of vehicle safety. The invention aims to explore the influence of parameter changes such as a vehicle state, a road surface condition and the like on a stable area for a vehicle running on the complex road surface condition, and discloses the method for estimating the vehicle running stable area under the complex road surface condition. The method comprises the steps of building a high-fidelity vehicle model, and identifying and drawing the vehicle running stable area. The stable area obtained through the estimation method can change in real time along with the vehicle state and the road surface condition, online estimation is carried out on the stable area, and more reliable safety evaluation can be carried out on the vehicle. According to the method, the influence of multiple factors such as a longitudinal speed, a front wheel rotation angle,a road adhesion coefficient, a ramp, a curve and the like on stable area estimation is considered, and the change conditions of the stable area under different conditions are analyzed.
一种复杂路况下车辆行驶稳定区域的估计方法,属于车辆安全技术领域。本发明的目的是针对行驶在复杂路面情况下的车辆,探究车辆状态、路面状况等参数变化对稳定区域影响的复杂路况下车辆行驶稳定区域的估计方法。本发明步骤是:高保真车辆模型搭建,车辆行驶稳定区域的辨识与绘制。本发明所提出的估计方法得到的稳定区域是可以随着车辆状态以及路面状况实时变化的,是对稳定区域进行在线的估计,可以实现对车辆进行更可靠的安全性评价。本发明考虑多方面因素,即纵向速度、前轮转角、路面附着系数、坡道、弯道等对稳定区域估计的影响,分析不同情况下稳定区域的变化情况。
Method for estimating vehicle running stable area under complex road conditions
复杂路况下车辆行驶稳定区域的估计方法
2020-11-27
Patent
Electronic Resource
Chinese
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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