基于Trucksim的下坡路段制动距离仿真与分析

Simulation and Analysis of Braking Distance of Downhill Section Based on Trucksim

为探究道路附着系数和车辆载重与坡度的交互作用对载重货车制动距离的影响,以下坡路段为研究对象,通过Trucksim建立人车路耦合系统,进行了不同工况的仿真实验,采用最小二乘法建立了坡度路段制动距离预测模型。最后,在某特定工况下验证了该模型的合理性。结果表明:与传统理论模型相比,该模型计算结果趋于保守,以此作为坡度路段最小跟驰距离更有利于行车安全。

In order to explore the influence of the interaction between road adhesion coefficient,vehicle load and slope on the braking distance of truck,the downhill sections are taken as the research object.The human-vehicle-road coupling system is established by Trucksim,and the simulation experiments under different working conditions are carried out.The braking distance prediction model of slope sections is established by the least square method.Finally,the rationality of the model is verified under a certain working condition.The results show that compared with the traditional theoretical model,the calculation results of the model tend to be conservative,and it is more conducive to driving safety as the minimum following distance of the slope road section.