Lane Departure System: Description and Operation

CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM: SYSTEM DIAGRAM





Communication Table










SYSTEM DESCRIPTION

1. LANE DEPARTURE ALERT DESCRIPTION

(a) The lane departure alert system uses the lane recognition camera sensor image of the road in front to detect the lane marker on either side of the vehicle. If the system detects that the vehicle is about to move out of the lane, it uses the warning buzzer and multi-information display to warn the driver.

However, in the following conditions, the lane departure alert system may not function normally.

Vehicle is near toll booths or similar areas

Road has no lane marker

Lane marker is cracked

Road has yellow lines

There is a shadow on either lane marker

As a result of reflections, the road surface is bright

Road has a reflective surface similar to concrete roads

Area where brightness changes suddenly, such as entrances and exits of tunnels or similar areas

Bright light is directed at the sensor

Incline of the road varies, winding road or other type of road where road surface is irregular

Bad weather

Frozen or snowy roads

Water or other liquid on the road surface

2. SYSTEM OPERATION

(a) The lane departure warning function operates when the lane departure alert main switch is on, the vehicle speed is 48 km/h (30 mph) or more, and lane markers on the road surface are detected. With the lane departure warning function operating, if the vehicle is about to move out of the lane and this is detected by the driving support ECU, the ECU uses the warning buzzer and multi-information display to warn the driver.

HINT
This function only provides suggestions for lane departure avoidance. This function does not automatically move the vehicle within a lane.





3. FUNCTION OF MAIN COMPONENTS