车辆弯道行驶侧倾稳定性分析与侧翻预警研究

车辆在弯道上高速行驶易发生侧翻事故,为此研究了车辆弯道防侧翻预警算法.首先分析车辆弯道行驶的侧倾稳定性,进而导出车辆弯道行驶侧向加速度极限方程,结合弯道半径等道路信息计算车辆进入弯道的安全车速.通过硬件在环驾驶模拟试验台对该预警算法进行验证,结果表明:该算法能对驶入弯道且具有侧翻风险的车辆进行预警,以有效避免侧翻,同时提高弯道车辆通行效率.

Roll Stability and Early-warning of Vehicle Driving in the Curve

Vehicle has a high risk of rollover when it drives at a high speed in a curve. A rollover earlywarning algorithm of vehicle in a curve was studied,which firstly analyzed the vehicle stability and then established vehicle lateral acceleration limit equation. Combining with the known road information,for example,the radius of the curve,safe speed and early-warning speed could be calculated before entering the curve. The algorithm had been verified by experiments on a driving simulator with hardware-in-theloop. Results show that the algorithm can succeed in providing early-warning for vehicle which has the risk of rollover,thus avoiding rollover and improving the traffic efficiency in the curve.