System to detect decrease in driver’s lane-keeping ability within several seconds by inverse driver model

ABSTRACT: When drivers are drowsy, sleeping, or the like, steering maneuvers stop momentarily. Focusing on this phenomenon, this paper describes a system to detect this momentary reduction in driving ability. First, the proposed system identifies some regular driver model parameters. Utilizing this model, the system estimates the driver-vehicle system behavior. As soon as a difference between the estimated and actual behavior is detected, the system judges that driving ability has decreased. This system was then verified empirically.