發(fā)布時間：2018-04-04 19:28

  本文選題：山區(qū)公路　切入點：行駛舒適性　出處：《西南交通大學(xué)學(xué)報》2017年02期

【摘要】：為了掌握山區(qū)雙車道公路的行駛舒適性水平及其關(guān)鍵影響因素,在6條公路上開展了自然駕駛行為試驗,采集了多款小客車的加速度連續(xù)變化曲線,用Matlab軟件對實測數(shù)據(jù)進(jìn)行濾波,提取了加速度曲線每個波形的峰值,得到了不同軸向加速度的峰值累積頻率曲線、特征分位值和均方根值.試驗研究結(jié)果表明:縱向加速度幅值要比制動減速度低50%,在試驗道路上汽車加(減)速導(dǎo)致乘員不舒適的位置比例最高達(dá)6%;乘員在實際行駛中感受橫向不舒適的路段比例為7%~10%;在各軸向的加速度中,對人體不適貢獻(xiàn)依次是橫向加速度ay、制動加速度ab、縱向加速度ax和豎向加速度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.
【作者單位】： 重慶交通大學(xué)交通運輸工程重慶市重點實驗室;西南交通大學(xué)交通運輸與物流學(xué)院;
【基金】：國家自然科學(xué)基金資助項目(51278514,51678099) “十二五”國家科技支撐計劃資助項目(2014BAG01B06)
【分類號】：U491.25

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