Importance

Loading Importance Indicators...

Abstract

The apparatus for control of a light-range of headlights of a motor vehicle includes two headlight orientation adjusting devices; at least one electro-optic sensor detecting actual values of light intensities of light reflected from an illuminated portion of the road; and an analyzer/control unit connected to the at least one electro-optic sensor and the adjusting devices to control the adjusting devices and the headlight orientation according to the sensor signal. To maintain the light-range of the headlights regardless of load conditions, the analyzer/control unit contains a memory device for storing data including set values of the light intensities for a desired headlight orientation and for storing other data including actual values of the reflected light intensities for actual headlight orientations when the headlights are set in the actual orientations; a comparator device for comparing the actual values for different actual orientations and the set values for the desired orientations; and a control device for controlling the adjusting devices according to the comparator device to set the headlights in various other actual orientations until the differences between the set values and actual values are minimized to determine the actual orientation closest to the desired orientation.

Loading the Abstract Image...

First Claim