ADAPTIVE HIGH BEAM SYSTEM SYSTEM DESCRIPTION


  1. ADAPTIVE HIGH BEAM SYSTEM


    1. The adaptive high beam system uses the forward recognition camera to detect the lights of vehicles ahead and to determine the brightness of the surrounding area in order to optimally control the high beams to prevent dazzling other drivers. The current supplied to the LED array inside each headlight unit is controlled to alter the brightness and illuminated area.

    2. Function of Main Components

      Component Outline
      Forward Recognition Camera Captures an image of the area in front of the vehicle and uses the image to determine the position of preceding and oncoming vehicles and to determine the brightness of the surrounding area. This data is then sent to the No. 1 headlight ECU sub-assembly LH.
      Rear Height Control Sensor Sub-assembly LH Transmits a vehicle height signal to the No. 1 headlight ECU sub-assembly LH.
      Headlight Leveling Motor Receives signals from the No. 1 headlight ECU sub-assembly to control the level of headlight beam.
      Combination Meter Assembly (Meter Circuit Plate)

      • Sends the state of the adaptive high beam switch (No. 2 combination switch assembly) to the No. 1 headlight ECU sub-assembly LH.

      • Displays "To Activate AHS, Switch Headlights to High Beam" on multi-information display in accordance with the signal from the No. 1 headlight ECU sub-assembly LH.

      • Illuminates the adaptive high beam indicator in accordance with the adaptive high beam indicator request signal from the No. 1 headlight ECU sub-assembly LH.

      • Displays a warning on the multi-information display when an adaptive high beam system malfunction signal is sent from the No. 1 headlight ECU sub-assembly LH.

        Tech Tips


        • When an adaptive high beam system malfunction is detected, the adaptive high beam indicator light turns off and "Headlight System Malfunction Visit Your Dealer" warning message is displayed on the multi-information display.

        • The adaptive high beam indicator light illuminates to inform the driver when the adaptive high beam system is active.
      No. 1 Headlight ECU Sub-assembly LH

      • Receives signals from the adaptive high beam switch (No. 2 combination switch assembly) and various ECUs to control the adaptive high beam system based on other vehicles and the conditions of the surrounding area.

      • Sends a request to the combination meter assembly (meter circuit plate) to display a warning when a malfunction is detected in the adaptive high beam system.

      • Controls the headlight light control ECU sub-assembly LH power supply.

      • Based on information of vehicles detected in front of the vehicle, sends the requested current value and switching time for the LED array of each headlight unit.
      No. 1 Headlight ECU Sub-assembly RH

      • Receives signals from the No. 1 headlight ECU sub-assembly LH to perform adaptive high beam system control of the headlight assembly RH.

      • Controls the headlight light control ECU sub-assembly RH power supply.
      Headlight Light Control ECU Sub-assembly Controls the output of the high beams via current and illumination request signals.
      Main Body ECU (Multiplex Network Body ECU)

      • Sends the status of the light control switch and vehicle information signals to the No. 1 headlight ECU sub-assembly LH.

      • Sends an illumination request signal to the No. 1 headlight ECU sub-assembly LH.
      Adaptive High Beam Switch (No. 2 Combination Switch Assembly) Outputs an ON/OFF signal to the No. 1 headlight ECU sub-assembly LH.
      Brake Booster With Master Cylinder Assembly (Skid Control ECU) Transmits a speed sensor signal to the No. 1 headlight ECU sub-assembly LH.
      Steering Sensor Transmits a steering angle signal to the No. 1 headlight ECU sub-assembly LH.
      Hybrid Vehicle Control ECU Outputs the shift position signal to the No. 1 headlight ECU sub-assembly LH.