A structure and method for operating a directional control system for
vehicle headlights that is capable of altering the directional aiming
angles of the headlights to account for changes in the operating
conditions of the vehicle. One or more operating condition sensors may be
provided that generate signals that are representative of a condition of
the vehicle, such as road speed, steering angle, pitch, suspension
height, rate of change of road speed, rate of change of steering angle,
rate of change of pitch, and rate of change of suspension height of the
vehicle. A controller is responsive to the sensor signal for generating
an output signal. An actuator is adapted to be connected to the headlight
to effect movement thereof in accordance with the output signal. The
controller can include a table that relates values of sensed operating
condition to values of the output signal. The controller is responsive to
the sensor signal for looking up the output signal in the table.