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车辆在坡道上曲线行驶时车厢会产生侧倾,车厢侧倾是影响车辆横向稳定性的重要参数之一。针对道路横向坡度角、簧载质量、非簧载质量离心力对车厢侧倾角的影响,建立了车辆在斜坡上曲线行驶时的车厢侧倾角预测模型,该模型是一个二阶非线性微分方程,利用Matlab编程实现了该模型的数值求解,并利用数显角度仪测量了车厢的侧倾角,将试验值与模型预测值进行了比较,判断了预测模型的有效性,研究结果表明该模型为预测车厢侧倾角提供了一个有效的手段。
When the vehicle curves on the ramp, the car will have a roll, and the car roll is one of the important parameters that affect the lateral stability of the car. In view of the influence of the lateral gradient angle, the sprung mass and the unsprung mass centrifugal force on the roll angle of the carriage, a prediction model for the roll angle of the carriage during curve driving on a slope is established. The model is a second order nonlinear differential equation Matlab program to achieve the numerical solution of the model and the use of digital angle meter measuring the roll angle of the cabin, the test value and the model predictive value were compared to determine the effectiveness of the predictive model, the results show that the model for the forecast car Roll angle provides an effective means.