Levelling
Since 1998 the ECE-Regulation R48 requires the compensation of vehicle inclination caused by different loading conditions. Its purpose is to avoid glaring of oncoming traffic and on to ensure an optimum range of illumination.
Automotive Lighting offers different types of VAC:
Manual Vertical Aim Control
This type of VAC is required for Halogen headlamps.
The driver uses a rotary or slide switch to adjust the headlamps according to the tilt of the vehicle.
Therewith an extreme vehicle inclination is compensated.
Electric motors for VAC 3rd generation are by Automotive Lighting.
It is a standard component and is integrated inside the headlamp.
Automatic Vertical Aim Control
Due to their increased brightness, an automatic vertical aim control is required for Xenon headlamps.
Axle sensors detect the angle of the chassis whereupon an electronic control unit calculates the vehicle’s tilt and compares it to a predefined value.
Motors then maintain the correct headlamp positioning in different loads or driving conditions.
