| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a technique for alarming against traffic lane deviations when own vehicle drifts out of a running lane and reducing unnecessary emissions of alarms on traffic lane deviations. <P>SOLUTION: When alarms are emitted with more than predetermined frequency within a predetermined period of time, a preset deviation determination threshold is altered outward from the lane by a predetermined value from the previous deviation determination threshold; and when no alarm is emitted even after the predetermined period of time has passed, the present deviation determination threshold is altered inward from the previous deviation determination threshold by a predetermined value. Based on the altered present deviation determination threshold, deviations from the running lane of the own vehicle are determined and when a deviation is determined, an alarm on the deviation is emitted. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
