Automatic leveling apparatus for vehicle headlamp has control unit that operates actuator to vary headlamp angle based on vehicle speed and pitch angle and only when vehicle is stationary or in stable traveling state

摘要

The apparatus has an actuator (10) that pivots the headlamp (1) vertically in relation to the vehicle. The actuator is controlled by a control unit (16) based on signals from vehicle speed and pitch angle sensors (12,14) so that the light axis of the headlamp maintains a constant, predetermined angle relative to the road surface. The control unit operates the actuator only when the vehicle is stationary or in a stable traveling state.