| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a consciousness deterioration determining device capable of highly accurately determining an inattentive state of a driver by highly accurately determining an excessive steering state without identifying a stability factor. <P>SOLUTION: The consciousness deterioration determining device obtains a vehicle speed V and a yaw rate ϕ as vehicle information, and a curve curvature ρ as road information (step S1), calculates a yaw rate ϕr=Vρ necessary for driving on a curve (step S2), and subtracts a necessary turning yaw rate ϕr from the actual yaw rate ϕ to obtain ϕ-ϕr as a relative yaw rate ϕn (step S3). The consciousness deterioration determining device determines a corrected excessive degree on the basis of the relative yaw rate ϕn (step S4), when an absolute value thereof exceeds the threshold, determines it as a consciousness deteriorated state, and outputs an alert (step S5). <P>COPYRIGHT: (C)2013,JPO&INPIT |
