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Hyundai Equus: Description and Operation - Adaptive Front Lighting System - Body Electrical System - Hyundai Equus VI 2009-2024 Service ManualHyundai Equus: Description and Operation

Second generation VI (2009–2024) / Hyundai Equus VI 2009-2024 Service Manual / Body Electrical System / Adaptive Front Lighting System / Description and Operation

Description
Adaptive Front-lighting System (AFLS)
AFLS(Adaptive Front-lighting System)is a headlamp orientation control system that takes into account both steering angle and vehicle speed to orient the headlamps to an angle that provides better nighttime visibility.
Variable conditions make beam pattern of running vehicle kaleidoscope.
Component of AFLS
1.
Input part : It is provided that information of speed sensor, height sensor and so on related to condition of vehicle.
2.
Control part (AFLS Unit) : It controls Output part by analyzing/judging Input signal.
3.
Output part : It drive Low beam of H/Lamp to upper/lower and left/right side optimum beam pattern according to output control signal of AFLS Unit.
Main function of AFLS

Content
Description
1
Dynamic Bending
(Swivelling)
•
Providing optimum beam pattern in the curve road
1.
Enhanced visibility in the curve road
2.
Drive Low beam to left / right side
2
Automatic Leveling
(Leveling)
•
Compensating Low beam according to inclination of vehicle
1.
Compensation according to static condition (Load)
2.
Compensation according to dynamic condtion (Quick start, Sudden stop )
3
Fail-safe
•
Fail-safe reaction while detecting system failure and malfunction
1.
Detecting signal / communication error for Swivelling
2.
Detecting signal /communication error for Leveling
3.
Detecting system failure

Advantage of AFLS

Content
Description
1
Enhanced stability
•
Visibility Guarantee In case of curve road
•
According to vehicle Speed/Steering angle, speed/angle of Swivel actuator is automatically controlled to provide optimum beam pattern
•
Fail-safe reaction application for Driver on opposite side road
>In case error communication,automatically return initial position of Swivel actuator
2
Enhanced convenience
•
AFLS operating application by driver's selection(AFLS Off switch)
•
Providing Diagnostic function for detecting system failure and malfunction and check up data information (by using Diagnostic equipment )
•
Reduced wiring-harness by Applying CAN/LIN communication in vehicle
•
Fun Drving Function : Swivelling of Low beam
> Increasing driver's pride

Operation
Component
AFLS Unit (A)

1.
General
System initialization, In case of input Engine signal (AFLS ECU, Levelling /Swivelling motor)
Adaptation of AFLS OFF switch
AFLS operate normally ,only under turning low beam switch on.
Providing Tell-tale function of AFLS(display 'AFLS OFF' on dashboard)
In case of system failure, display blinking 'AFLS OFF' on dashboard.
2.
Main function
Swivelling function
Levelling function
Processing signal of Height sensor(Air suspension)
Swivelling Actuator (A)

1.
General
communicate AFLS Unit through LIN protocol
Robust control to Disturbance
Doesn't work out of rated voltage range.
2.
Main function & Rating
Drive Low beam to left / right side
Fail-safe function : In case of detecting malfunction or system failure , drive to secure position
gear ratio (150 : 1)
Operating voltage : 10V ~ 16V
Operating current : 100mA
Levelling Actuator (A)

1.
Main spec
communicate AFLS Unit through LIN protocol
Robust control to Disturbance
Doesn't work out of rated voltage range.
2.
Main function & Rating
Drive Low beam to upper / lower
Fail-safe function : In case of detecting malfunction or system failure , drive to secure position
Drive type : Micro step mode (1/16)
Operating voltage : 10V ~ 16V
Operating current : 600mA
Height Sensor

1.
General
Height Sensor connecting body & suspension measures inclination information from load condition.
Vehicle having the Air-suspension system transmits inclination signal to AFLS ECU by using CAN protocol.
Vehicle having the Steel-suspension system transmits inclination signal to AFLS ECU by using Hard-wire.
2.
Rating
Rated Voltage : 5V ± 5%
    Schematic Diagrams
    Circuit Diagram ...

    Repair procedures
    Inspection Initialization and diagnosis sequence by using diagnostic equipment Below content summarize the procedure for A/S using Diagnostic equipment Download Parameter 1. Select "AFLS" menu ...

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