Effects of cognitive and visual loads on driving performance after take-over request (TOR) in automated driving
Effects of cognitive and visual loads on driving performance after take-over request (TOR) in automated driving
复制标题
DOI：
10.1016/j.apergo.2020.103074
复制
发表时间：
2020-05-01
影响因子：
3.2
通讯作者：
Kitazaki, Satoshi
中科院分区：
文献类型：
--
作者：
Choi, Damee;Sato, Toshihisa;Kitazaki, Satoshi
本研究探讨了在自动驾驶任务中，认知负荷和视觉负荷对接管请求后驾驶绩效的影响。参与者在驾驶模拟器中完成自动驾驶，没有与驾驶无关的任务，具有容易的非驾驶相关任务，具有困难的非驾驶相关任务。主要任务是监控环境和系统状态。采用N-back任务和替代参照任务(Surt)分别诱发认知负荷和视觉负荷。该系统自动跟踪前面的一辆车。驾驶性能是通过在自动化系统发出TOR然后终止后对关键事件(故障汽车的外观)的反应来衡量的。N-back任务的高主观难度与转向控制开始至换道时间段内转向角方差的增加有关，而Surt的高主观难度与换道后时间段的转向角方差增大有关。这表明认知负荷和视觉负荷都会影响自动驾驶中TOR后的驾驶表现，但这种影响出现在不同的时间进程中。
The present study investigated effects of cognitive and visual loads on driving performance after take-over request (TOR) in an automated driving task. Participants completed automated driving in a driving simulator without a non-driving related task, with an easy non-driving related task, and with a difficult non-driving related task. The primary task was to monitor the environment and the system state. An N-back task and a Surrogate Reference Task (SuRT) were adapted to induce cognitive and visual loads respectively. The system followed a front vehicle automatically. Driving performance was measured by responses to a critical event (appearance of a broken-down car) after the automated system issued TOR and then terminated. High subjective difficulty of the N-back task was related to increased time and increased steering angle variance in the time course from onset of steering control to lane change, while high subjective difficulty of SuRT was related to increased steering angle variance in the time course after lane change. This suggests that both cognitive and visual loads affect driving performance after TOR in automated driving, but the effects appear in different time courses.