Headlight Leveling

Advances in automotive headlight technology have enabled drivers to use brighter headlights providing better visibility at night and in foul weather conditions. Unfortunately, these brighter lights have created a significant hazard for oncoming traffic if they are not positioned at the correct angle at all times. If a bright beam is set at an adverse angle, the light has the capacity to momentarily blind any oncoming drivers. Vehicles equipped with High Intensity Discharge (HID) headlamps are required by ECE regulation 48 to be equipped with automatic beam leveling control to keep the light focused on the road and not into the eyes of oncoming drivers.

MEMSIC accelerometers are used to detect the angle of inclination of the vehicle providing the information necessary for the headlight leveling control system to keep the beam focused on the road. A low frequency response, minimal 0g drift over temperature, and vibration immunity are the keys to success in this application. MEMSIC devices designed for this application excel in these areas.

Key Characteristics

  • Low Frequency Response
  • Ultra low 0g drift versus temperature
  • High Frequency Vibration Immunity
  • Road-Proven Technology

 

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Memsic Headlight Leveling
Advances in automotive headlight technology have enabled drivers to use brighter headlights providing better visibility