Kia Niro: Lane Keeping Assist System (LKAS) / Description and operation
| Description |
System block diagram
System function
Camera unit of the LKAS processes below function with the video signal inputted
| 1. |
LKAS (Lane Keeping Assist System) : The system is designed to help recognize the lane ahead and to give off a lane departure warning when the vehicle starts moving out of the lane by using the camera image and vehicle signal information. |
| 2. |
High Beam Assist (HBA) : Detects head lamp and tail lamp lights of vehicle ahead and turns the high beam ON/OFF. |
| 3. |
Speed Limit Information Function (SLIF) : Detects traffic signs by using the camera and displays the speed limit by using the map data from navigation. |
| 4. |
It supports Automatic Emergency Braking (AEB) systems. |
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Lane Keeping Assist System (LKAS) |
High Beam Assist (HBA) |
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Lane Keeping Assist |
When detecting light from vehicle in front |
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Speed Limit Information Function (SLIF) |
Automatic Emergency Braking (AEB) |
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Speed Limit Information |
Vehicle and pedestrian detection |
System Activation Conditions
| LKAS Controller Typical Operating Conditions |
Note that operating conditions are tuned to meet the customer requirements .
| – |
Vehicle speed within 60 kph – 175 kph |
| – |
A lane is clearly visible. |
| – |
Driver is not overriding the system – applying a large steering torque |
| – |
Directional (including hazard) signals are off. |
| – |
The lane width is within 2.8m to 4.3m |
| – |
The driver’s hands are on the steering wheel. |
| – |
The absolute steering angle is < a given value (e.g 90 degrees). |
| – |
The maximum allowable time for maximum torque application has not been exceeded. (90 seconds) |
| – |
Reverse or EPS city mode is not engaged. |
| – |
No fault is present in the system. |
Activation conditions for HBA are as follows:
| – |
HBA is activated when the light switch is at 'AUTO' and the high beam switch is ON (push). |
| – |
HBA is activated when the function is enabled and the vehicle speed is 45 km/h or higher, and automatically deactivated when the vehicle speed is 35 km/h or less. |
| – |
HBA is not activated in daytime even if the activation conditions are satisfied. |
| – |
In nighttime, HBA detects the preceding vehicle's lamp light and automatically turns the high beam on or off. |
Activation conditions for DAA are as follows:
| – |
The function should be enabled on the User Setting Menu (USM) of the cluster. |
| – |
The function should be enabled and the vehicle speed should be 60 km/h - 175 km/h. |
Components and components location
Components
1. LKAS ON/OFF switch
2. Instrument cluster
3. LKAS Unit (MFC)
* MFC : Multi Function Camera
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Function : LKAS, ...
Repair procedures
Service Point Target Auto
Calibration (SPTAC)
This procedure provides a way to calibrate the camera by having the service technician
align the car to a well lit simulated straight r ...
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