ADAPTIVE LED HEADLIGHTS [(E)]

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Outline

•  The adaptive LED headlights improve visibility by changing the headlight illumination range depending on the vehicle driving conditions and the surrounding conditions without switching the headlights between HI/LO.
•  Depending on on-coming vehicles, vehicles ahead, driving around curves and the vehicle speed, the headlights automatically increase or decrease the brightness to illuminate farther and wider when the light switch is in the AUTO position and the dimmer switch is in the HI position.

Function

•  The adaptive LED headlights determine the surrounding conditions and vehicle conditions based on the signals from the related modules, and based on the determined results, the adaptive LED headlights changes the headlight brightness. For surrounding condition and vehicle condition determination, refer to the [ADAPTIVE LED HEADLIGHTS CONTROL MODULE]. (See ADAPTIVE LED HEADLIGHTS CONTROL MODULE [(E)].)
•  The adaptive LED headlights has the following functions.

Glare-free high beam

•  Depending on the presence of vehicles ahead, driving around curves, traveling through towns and cities, or vehicle speed, the glare-free high beam helps prevent the drivers of other vehicles from being dazzled while the maintaining headlight high beam light distribution.
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Wide-range low beam

•  The wide-range low beam enhances the visibility at intersections during the night by illuminating the side-illuminating LEDs of the front combination light while traveling at low speeds.
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Highway mode

•  The highway mode raises the optical axis of the headlight high/low beams to improve long distance visibility while traveling at high speeds.
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System conditions display function

•  The Adaptive LED Headlights (ALH) control module displays the system status using the adaptive LED headlights indicator light (green), adaptive LED headlights warning light (amber), multi-information display (with multi-information display) in the instrument cluster, and the warning display on the center display (with center display).

Condition

Adaptive LED headlights indicator light (green)

Adaptive LED headlights warning light (amber)

Multi-information display
Light switch is in AUTO and dimmer switch is in position other than LO
Off
Off
No display
Headlights off
While vehicle is stopped
System set to off by personalization
Light switch is in AUTO and dimmer switch is in LO and headlights turned on
On
Forward sensing camera (FSC) detects camera/windshield fogging
Off
Warning display*1
Forward sensing camera (FSC) detects that the camera/windshield is dirty
Adaptive LED headlights has a malfunction
On
Forward sensing camera (FSC) has a malfunction

*1  :For the warning display content on the multi-information display, refer to the [MULTI-INFORMATION DISPLAY]. (See MULTI-INFORMATION DISPLAY.)


Personalization feature

•  The adaptive LED headlights can be set to On (operational)/Off (non-operational) (initial setting is [On].) For details on the personalization features, refer to the [PERSONALIZATION FEATURES].


Structure/Construction


System structure

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System wiring diagram

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Operation


Glare-free high beam

•  The adaptive LED headlights control module determines the vehicle driving status and surrounding conditions based on the signals from the related modules, and based on the determined result, the glare-free high beam controls the on/off/increase and decrease of brightness for the LEDs installed on the headlight high beams.
•  When the glare-free high beam operates with all the following conditions met.
―  Adaptive LED headlights personalization is [On]
―  Headlight auto leveling system initial setting is complete
―  Selector lever is in position other than R position (ATX)
―  Shift lever is in position other than reverse position (MTX)
―  Light switch in AUTO position and dimmer switch in HI position
―  Headlight LO is illuminated
―  Vehicle speed is 40 km/h {25 mph} or more
―  Driving in city/town signal is not received from forward sensing camera (FSC)
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High beam inhibition
•  When the adaptive LED headlights control module receives a driving in city/town signal from the forward sensing camera (FSC), it turns off the high beams and inhibits unnecessary brightness.
Flicker inhibition
•  The adaptive LED headlights control module delays the change in light distribution and inhibits flickering under the following conditions.
―  Losing sight of vehicle ahead due to sloping road conditions
―  Appearance/disappearance of vehicles ahead is due to effect of dividers lining the median strip
―  Light distribution is performed


Wide-range low beam

•  The adaptive LED headlights control module increases the brightness of the LEDs for side illumination in the front combination light when all the following conditions are met.
―  Adaptive LED headlights personalization feature is [On]
―  Light switch in AUTO position and dimmer switch in HI position
―  Headlight LO is illuminated
―  Vehicle speed is 2 km/h {1 mph} or more, and less than 40 km/h {25 mph}
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Highway mode

•  The adaptive LED headlights control module operates the highway mode when all of the following conditions are met.
―  Adaptive LED headlights personalization feature is [On]
―  Headlight auto leveling system initial setting is completed
―  Selector lever is in position other than R position (ATX)
―  Shift lever is in position other than reverse position (MTX)
―  Light switch in AUTO position and dimmer switch in HI position
―  Headlight LO is illuminated
―  Vehicle speed is 95 km/h {59 mph} or more
―  Driving in city/town signal is not received from forward sensing camera (FSC)
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•  The adaptive LED headlights control module raises the headlight low optical axis depending on the vehicle speed. For the headlight low optical axis adjustment, refer to the [HEADLIGHT AUTO LEVELING SYSTEM]. (See HEADLIGHT AUTO LEVELING SYSTEM.)