基于抗滑系数的积雪路段安全车速研究

Research on safe speed of snow road based on anti sliding coefficient

为保证汽车在积雪路段行驶的安全性,探究积雪深度、车速与车辆质量对车辆行驶速度的影响,对不同情况下车辆的制动距离进行实车试验。通过线性回归分析确定积雪深度、车速、车辆质量与道路抗滑系数的关系模型。结果表明,积雪深度和质量与道路抗滑系数存在幂函数关系,车速与抗滑系数存在对数函数关系,以此求出不同条件下车辆行驶的安全车速。

A test is conducted for the braking distances of a vehicle under different situations to explore the influence of snow depth,vehicle speed,and mass on the running speed of the vehicle and guarantee the safety of the vehicle running on the road with accumulated snow.The relational model of snow depth,vehicle speed,vehicle weight and the anti-slide coefficient of the road is determined by the linear regression analysis.The result shows that there exists a power function relationship between snow depth and mass and the anti-slide coefficient of the road and a logarithmic relationship between the vehicle speed and the anti-slide coefficient by which we obtain the safe speed of running vehicles under different situations.