The Effect of Whole-Body Haptic Feedback on Driver's Perception in Negotiating a Curve
This addresses safety concerns for drivers in autonomous vehicles by potentially improving risk perception during take-over scenarios, though it is incremental as it builds on existing haptic feedback research.
The study investigated how whole-body haptic feedback affects drivers' perception during curve negotiations in autonomous vehicles, finding that it significantly increased pupil diameter and fixation time, suggesting it can serve as an effective hazard notification.
It remains uncertain regarding the safety of driving in autonomous vehicles that, after a long, passive control and inattention to the driving situation, how the drivers will be effectively informed to take-over the control in emergency. In particular, the active role of vehicle force feedback on the driver's risk perception on curves has not been fully explored. To investigate it, the current paper examined the driver's cognitive and visual responses to the whole-body haptic feedback during curve negotiations. The effects of force feedback on drivers' responses on curves were investigated in a high-fidelity driving simulator while measuring EEG and visual gaze over ten participants. The preliminary analyses of the first two participants revealed that pupil diameter and fixation time on the curves were significantly longer when the driver received whole-body feedback, compared to none. The findings suggest that whole-body feedback can be used as an effective "advance notification" of hazards.