| 摘要 |
<p>PROBLEM TO BE SOLVED: To detect abnormality generation of a drive condition of a driver correctly.SOLUTION: The driver condition detection device is configured so as to: extract an analysis zone for analyzing a deviation amount from a target course of a vehicle fix point on a vehicle central line of the vehicle and handle steering angle data (S12); and cut data which is fourier conversion target data among the deviation amount and the handle steering angle data detected in the respective zone (S14). The deviation amount data and the handle steering angle data are subjected to fourier conversion, for calculating a ratio of frequency component during normal drive (S16). Data acquisition start time is optionally changed (S22, S24) and processes of S12-S16 are repeated (S26), a ratio of frequency component of the deviation amount data and the handle steering angle is acquired (S28). Then, the ratio is compared with a ratio of frequency component during the normal time, for determining whether abnormality of a drive condition is generated or not (S30).</p> |
