西南交通大学学报2017，Vol.52Issue(2)：309-318,10.DOI:10.3969/j.issn.0258-2724.2017.02.014
基于自然驾驶的山区公路行驶舒适性研究
Investigation on Driving Comfort of Passenger Cars on Mountain Roads Based on Naturalistic Driving
摘要
Abstract
Naturalistic driving tests were conducted using real vehicles on six roads to study the level of driving comfort on two-lane mountainroads and the key influencing factors.In the tests,acceleration data of passenger cars were collected;after filtered using Matlab software,the peak value of each waveform of the measured data was extracted to obtain the cumulative frequency profiles of peak accelerations of different axes,as well as the characteristic percentile values and the root mean square (RMS) values.The results show that the longitudinal acceleration rate ax on two-lane highways is only half the deceleration rate ab in braking.The locations where the acceleration and deceleration cause occupants discomfort account for 6％ of the total test points at the most.The ratio of road sections where occupants feel discomfort in lateral direction ranges from 7％ to 10％ of the total trip;Among all the axial accelerations,lateral acceleration ay,braking acceleration ab,the longitudinal acceleration ax and vertical acceleration az make the greatest part of contribution to the discomfort.关键词
山区公路/行驶舒适性/自然驾驶/横向加速度/垂向加速度/加速度均方根值Key words
mountain roads/driving comfort/naturally driving/lateral acceleration/vertical acceleration/acceleration RMS分类
交通工程引用本文复制引用
徐进,杨奎,鲁工圆,邵毅明..基于自然驾驶的山区公路行驶舒适性研究[J].西南交通大学学报,2017,52(2):309-318,10.基金项目
国家自然科学基金资助项目(51278514,51678099) （51278514,51678099）
“十二五”国家科技支撑计划资助项目(2014BAG01B06) （2014BAG01B06）
