基于惯性基准的路面等级评价  

Optimization of Pavement Grade Evaluation Method Based on Inertial reference

作　　者：杨振青 阎阔 李孟华 闫际宇 邱晨 YANG Zhen-qing;YAN Kuo;LI Meng-hua;YAN Ji-yu;QIU Chen(Commercial Vehicle Development Institute,Faw Jiefang Truck Co.,LTD.,Changchun 130011,China;Second Military Office of the PLA In Changchun Area,Changchun 130000,China;PLA unit 63969,Nanjing 230026,China)

机构地区：[1]一汽解放汽车有限公司商用车开发院,长春130011 [2]陆军驻长春地区第二军代室,长春130000 [3]中国人民解放军63969部队,南京230026

出　　处：《汽车科技》2021年第4期105-113,共9页Auto Sci-Tech

摘　　要：路面等级是车辆平顺性和操控稳定性等性能的重要影响因素,本文以惯性基准为基础的非接触式评价方法为主要研究对象。首先引入惯性导航系统,解决了惯性基准指向不稳定的问题,并使用卡尔曼滤波进行数据融合,准确得到了路面不平度功率谱密度;在此基础上,结合人体器官和车辆零部件的敏感频率,提出了评价路面等级更合理的空间频率范围。最后通过试验,验证了该方法的准确性和稳定性。该研究的实测数据可作为仿真汽车平顺性、操纵稳定性等试验的输入数据,也可作为道路模拟试验台的输入信号。Pavement grade is an important factor for ride comfort and handling stability of vehicle.This paper aims to the non-contact evaluation method based on inertial reference.Firstly,the problem of inertial reference pointing instability is solved by introducing the inertial navigation system,and the power spectral density of pavement roughness is accurately obtained by using Kalman filter.On this basis,combining with the sensitive frequency of human organs and vehicle parts,a more reasonable spatial frequency range for evaluating road grade is proposed.Finally,the accuracy and stability of the method are verified by testing.The measured data of this study can be used as the input data of vehicle ride comfort,vehicle handling stability,etc.,as well as the input signal of road simulation test bed.

关 键 词：路面不平度 路面等级 功率谱 频率范围 捷联惯性导航系统、卡尔曼滤波 

分 类 号：U416.23[交通运输工程—道路与铁道工程]