商用车辆采用低速试验数据判断动态车辆侧翻的临界值

已经开发了一个确定动态车辆侧翻临界值的方法,该方法采用一侧翻平面车辆模型和以低速进行试验测量的侧向加速度为基础仿真。然后采用曲线拟合技术推断侧向加速度和前进速度的临界值。该方法采用变通道运动试验证实,并获得一个良好的相互关系。本方法很好适应确定侧翻临界值一目标试验程序,仅需要测量侧向加速度。

Estimation of Dynamic Rollover Threshold of Commercial Vehicles Using Low Speed Experimental Data

A hybrid approach has been developed to determine the dynamic vehicle rollover threshold. The approach uses a roll-plane vehicle model and a simulation based on the testing that was carried out at low speeds, where lateral acceleration are measured. Then, curve fitting techniques are used to extrapolate for the threshold values of lateral acceleration and forward velocity. This approach was validated using lanechange maneuver test data and a good correlation was obtained. Further, this approach is well suited as an objective test procedure to determine the rollover threshold as only lateral accelerations need to be measured.