Hyundai Elantra: 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 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
Fail-safe
Fail-safe reaction while detecting system failure and malfunction
1.
Detecting signal / communication error for Swivelling
2.
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 /Swivelling motor)
AFLS operate normally ,only under turning low beam switch on.
Providing Tel-tale function of AFLS (display ‘AFLS’ on dashboard).
In case of system failure, display light on ‘AFLS’ on dashboard

2.
Main function
Swivelling function
Control the shield drum to change the beam pattern
Swivelling Motor (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
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 ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Description and Operation
Description System Overview The System offers the following features: - Human / machine interface through a 1-stage button, for terminal switching and engine start. - Control of external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition swit ...

Hyundai Elantra AD (2016-2020) Service Manual: Relay Box (Engine Compartment) Repair procedures
Inspection 1. Disconnect the negative (-) battery terminal. 2. Pull out the relay from the engine compartment relay block. Power Relay (Type A) Check for continuity between the terminals. 1. After supplying power to between No. 85 and 86 power relay terminals, check that there is co ...

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