高速公路超长爬坡路段重载车辆行驶状态安全稳定性分析  

Analysis of State Highway Long Uphill Road Overload Vehicle Safety Stability

作　　者：陈之强[1] 

机构地区：[1]西藏大学工学院,拉萨850000

出　　处：《科学技术与工程》2017年第24期283-288,共6页Science Technology and Engineering

摘　　要：准确分析重载车辆在高速公路超长爬坡路段的行驶状态,能够保证车辆的主动安全控制。当前车辆形式状态安全稳定性分析大多采用单一集中卡尔曼滤波方法,存在容错性差的弊端,稳定性和可靠性不高。为此,从新的角度对高速公路超长爬坡路段重载车辆行驶状态安全稳定性进行分析,通过失稳角对行驶状态安全稳定性进行分析;依据弯道路段事故特征,分析重载车辆出现侧翻与侧滑的现象,得出高速公路路面情况、坡度和转弯半径对重载车辆行驶状态安全稳定性有影响的结论。引入加速度干扰概念,以更加有效的分析重载车辆行驶安全稳定性。实验结果表明,所提方法能准确分析重载车辆行驶状态的安全稳定性。At present,the vehicle form state safety stability analysis method has the disadvantage of poor fault tolerance,and the stability and reliability is not high. Therefore,this paper proposed a new analysis method for safety and stability of running state of heavy vehicle on the over-length climbing section of expressway. Firstly,the method analyzed safety and stability of running state via instability angle,meanwhile,analyzed the phenomenon of rollover and sideslip occurred in heavy load vehicles according to accident features of bend road,and then obtained conclusions including highway surface condition,slope and turning radius have influence on the safety and stability of heavy vehicle running state. Finally,this method introduced acceleration interference concept to analyze safety and stability of heavy load vehicle running. The experimental results demonstrate that the method in this paper can accurately analyze safety and stability of heavy load vehicle running state.

关 键 词：高速公路 超长爬坡路段 重载车辆 行驶状态 安全稳定性 

分 类 号：U461.91[机械工程—车辆工程]