本文選題：主動(dòng)安全　切入點(diǎn)：汽車避撞系統(tǒng)　出處：《同濟(jì)大學(xué)學(xué)報(bào)(自然科學(xué)版)》2014年01期

【摘要】：基于真實(shí)交通工況下駕駛員的緊急制動(dòng)行為特征,建立了一種新的危險(xiǎn)估計(jì)算法用于汽車避撞系統(tǒng)的控制策略開發(fā).通過在車輛上安裝車輛行駛記錄儀采集了目標(biāo)區(qū)域內(nèi)駕駛員的真實(shí)交通場(chǎng)景;對(duì)采集到的交通場(chǎng)景進(jìn)行人工篩選,并按照美國高速公路安全管理局(NHTSA)的分類方法進(jìn)行了分類,得到了6種典型的危險(xiǎn)工況;通過視頻圖像處理等方法對(duì)典型危險(xiǎn)工況下駕駛員的緊急制動(dòng)行為進(jìn)行了分析,得到了駕駛員緊急制動(dòng)起始點(diǎn)的碰撞時(shí)間tTTC值以及車輛在緊急制動(dòng)過程中的平均制動(dòng)減速度,并利用這些數(shù)據(jù)建立了基于碰撞時(shí)間倒數(shù)tiTTC和期望減速度areq的危險(xiǎn)估計(jì)算法.這種危險(xiǎn)估計(jì)算法能夠同時(shí)考慮兩車快速靠近以及穩(wěn)定跟車工況,并與駕駛員在真實(shí)交通環(huán)境中的緊急制動(dòng)行為相對(duì)應(yīng).
[Abstract]:Based on the characteristics of drivers' emergency braking behavior under real traffic conditions, A new risk estimation algorithm is established to develop the control strategy of vehicle collision avoidance system. The real traffic scene of the driver in the target area is collected by installing the vehicle travel recorder on the vehicle. The traffic scenes collected were manually screened and classified according to the classification method of National Highway Safety Administration (NHTSA), and six typical dangerous working conditions were obtained. The emergency braking behavior of the driver under typical dangerous conditions is analyzed by video image processing. The tTTC value of the driver's crash time at the starting point of the emergency braking and the average braking speed of the vehicle during the emergency braking are obtained. Using these data, a hazard estimation algorithm based on collision time reciprocal tiTTC and expected deceleration areq is established. And corresponding to the driver's emergency braking behavior in the real traffic environment.
【作者單位】： 同濟(jì)大學(xué)汽車學(xué)院;吉利汽車研究院有限公司;
【分類號(hào)】：U491.254

【共引文獻(xiàn)】

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本文編號(hào)：1660129