摘要
为了研究山区道路车辆的行驶安全,在构建车辆动力学模型的基础上,解算车辆的行驶状态,分析纵坡坡度、横向超高以及行车速度等单一因素下的车辆动力学响应;以最大横摆角速度与稳态横摆角速度为指标,分析组合因素对车辆行驶稳定性的影响。结果表明:当车速保持不变时,横摆角速度随超高的增加而减小,随纵坡坡度的增加而增大;对于相同的道路几何线形,车速越高,横摆角速度越大,行车风险越高。
In order to study vehicle driving safety on mountainous road,the dynamic responses of vehicle and the corresponding driving risk were studied.Based on the vehicle dynamical model on mountainous road,driving states of vehicle were calculated and the dynamic responses with different bank angles,road grades and driving velocities were analyzed.Taking the maximum yaw rate and steady-state yaw velocity as indexes,the influence of combined factors on vehicle driving stability was analyzed.The results show that when the speed remains constant,the yaw rate decreases with the increase of bank angle,and increases with the increase of the longitudinal slope.For the same road geometric alignment,the higher the speed is,the greater the yaw rate will be,and thus the higher driving risk will be.
作者
王慧丽
WANG Huili(School of Statistics, Xi an University of Finance and Economics, Xi an710100, China)
出处
《现代交通技术》
2018年第6期44-49,共6页
Modern Transportation Technology
基金
陕西省教育厅专项科研计划项目(16JK1301)
西安财经学院科学研究扶持计划项目(16FCJH04)资助
关键词
山区道路
行车风险
车辆动力学模型
几何线形
mountainous road
driving risk
vehicle dynamical model
geometric alignment
