Lane departure warning deactivation

1. Depart from lane after turn signal is active

   If vehicle departs from lane after turn signal is activated, the departure warning of turn signal direction is not activated. Warning alarm is not activated while turn signal is activated. If turn signal is deactivated during lane departure after turn signal activates, system can issue warning after 2sec when it can recognize lane.

   If turn signal is deactivated after lane departure during turn signal activated, Warning signal can be generated after 2 second.

2. Turn signal is activated after lane departure

   Alarm is immediately deactivated when driver operates turn signal during lane departure.

   Alarm can be activated again after 2 second when turn signal is deactivated.

When measured curve radius which is derived from lane recognition and Yaw Rate is under 250m,

LDWS do not warn lane departure. LDWS can recognize if a road curvature condition is under 250m (R >= 250m)

1. During the warning, lane becomes unrecognizable
   • In lane departure alarm, the case where one lane becomes unrecognizable: Alarm is activated using previously measured lane width, a hue and a curvature.
   • In lane departure alarm, the case where both lanes become unrecognizable: Lane departure Warning is immediately stopped and LDWS signal that lanes are unrecognizable to warn its condition to driver.
2. A line is unrecognizable

   During vehicle is tracking the lane, if a line is not recognizable, LDWS can execute lane departure warning using previous lane width which is measured from previous image processing. LDWS normally refer the color of lines to previous recognition result, but if there are any changes of system operation and power on/off, when system can not determine the color of the lane, system can execute lane departure warning algorithm refer lane color to white. When system line unrecognized state is maintained, System status is changed to line unrecognized state.

3. Both lanes are unrecognizable

   LDWS signal the status of unrecognizable lane. If there are none of additional indicator, system do not indicate recognition status.

   CAUTION: LDWS is capable of recognizing continuing lines as lanes and has limited lane recognition capabilities when it comes to sharp-bending roads.
   In addition, the system may not function properly under the following circumstances:

   • No or faded lane markings (failed lane detection).
   • Low visibility due to foul weather conditions.
   • Low light or sudden change in exterior light conditions.
   • Sharp bends of the road (curvature radius of less than 250m).
   • Sidewalks and other dividing structures along the edge of the lane.
   • Dirty windshield (low camera visibility).