前车突然切入时驾驶人应激生理特性研究  

Driver's stress physiological characteristics when front vehicle cuts in suddenly

作　　者：郭艳君[1,2] 徐远新[1] 王党青[1] 

机构地区：[1]长安大学汽车学院,陕西西安710064 [2]辽宁省交通高等专科学校物流管理系,辽宁沈阳110122

出　　处：《中国安全科学学报》2015年第2期9-14,共6页China Safety Science Journal

基　　金：国家自然科学基金资助(61473046;61374196);教育部长江学者与创新团队支持计划项目(IRT1286);交通运输部应用基础研究项目(2013319812150);中央高校基本科研业务费专项资金项目(2013G2221006;2013G3221004)

摘　　要：为研究前车突然切入对驾驶人生理负荷的影响,利用MP150生理监测系统对22名被试进行虚拟驾驶试验。采集记录前车突然切入时被试的生理参数。研究驾驶人心率增长率和心率变异性(HRV)指标与车速、应激距离之间的关系。结果表明:自车速度为100 km/h时,随着前车切入距离从55.6 m减小到27.8 m,被试的平均心率增长率从16.21%增大到23.27%,HRV参数低频(LF)值也呈现下降趋势。前车切入距离一定,随着自车车速从60 km/h增加到120 km/h,被试的平均心率增长率存在显著性差异,平均从13.05%上升到21.85%。差异性检验结果表明,前车切入距离和自车速度发生变化时驾驶人的生理负荷变化趋势一致,但自车速度因素对驾驶人生理负荷的影响程度高于切入距离因素。Aiming at studying the influence of front vehicle cut in suddenly on driver＇s physiological load, 22 drivers were convened to carry out virtual driving test with equipment of MP150 physiology monitoring system. Drivers＇ physiology data were recorded when the front vehicle cut in suddenly. Heart rate growth and HRV were used to analyze driver＇s physiological load. The result shows that while speed is 100 km/h, with decreasing of cut in distance from 55.6 m to 27.8 m, the average heart rate growth increases from 16.21% to 23.27% ,and HRV LF decreases correspondingly, and that while the cut in distance remains unchanged, with increasing of speed from 60 km/h to 120 kmkm/h, the average heart rate growth increases from 13.05% to 21.85%. Difference examination result shows that the drivers are similar in responding physiologically to the changing of cut in distance or speed, but the incidence of speed factor is higher than that of cut in distance factor.

关 键 词：驾驶人 应激反应 驾驶模拟器 心率增长率 心率变异性(HRV) 低频(LF) 

分 类 号：X912[环境科学与工程—安全科学] U471.3[机械工程—车辆工程]