基于自然驾驶的山区公路行驶舒适性研究

发布时间：2018-04-04 19:28

本文选题：山区公路　切入点：行驶舒适性　出处：《西南交通大学学报》2017年02期

【摘要】：为了掌握山区双车道公路的行驶舒适性水平及其关键影响因素,在6条公路上开展了自然驾驶行为试验,采集了多款小客车的加速度连续变化曲线,用Matlab软件对实测数据进行滤波,提取了加速度曲线每个波形的峰值,得到了不同轴向加速度的峰值累积频率曲线、特征分位值和均方根值.试验研究结果表明:纵向加速度幅值要比制动减速度低50%,在试验道路上汽车加(减)速导致乘员不舒适的位置比例最高达6%;乘员在实际行驶中感受横向不舒适的路段比例为7%~10%;在各轴向的加速度中,对人体不适贡献依次是横向加速度ay、制动加速度ab、纵向加速度ax和竖向加速度az.
[Abstract]:In order to understand the driving comfort level and its key influencing factors of two-lane highway in mountainous area, the natural driving behavior test was carried out on 6 highways, and the acceleration continuous variation curves of several small passenger cars were collected.Using Matlab software to filter the measured data, the peak value of each waveform of acceleration curve is extracted, and the peak cumulative frequency curve, characteristic quantile value and root mean square value of different axial acceleration are obtained.The experimental results show that the amplitude of longitudinal acceleration is 50% lower than the deceleration speed of braking, and the proportion of the passengers who are not comfortable caused by the speed of the vehicle plus or minus on the test road is up to 6, and the passengers feel the transversal discomfort in the actual driving.The section ratio is 7 / 10 / 10; in each axial acceleration,The contribution to the human body is in the order of lateral acceleration, braking acceleration, longitudinal acceleration ax and vertical acceleration az.
【作者单位】：重庆交通大学交通运输工程重庆市重点实验室;西南交通大学交通运输与物流学院;
【基金】：国家自然科学基金资助项目(51278514,51678099) “十二五”国家科技支撑计划资助项目(2014BAG01B06)
【分类号】：U491.25

【相似文献】