Robert Boschgmbh

Ulrich Zillgitt

Harald Speer

Kurt Haug

Georg Ebinger

Miervaldis Millers

Heinrich Hasselmann

Stefan Hammerstingl

Steffen Schneider

Kurt Grabow

Hans-Rudolf Bodensieck

Werner Schulze

Hellmut Kegel

Elefterios Konto

Reinhold Poglitsch

Wolfgang Kuhn

Gunther Doll

Andreas Hammele

Thilo Wagner

Hans-Juergen Lipart

Inge Schwerin

Helmut Zauft

The device for controlling headlights of a vehicle includes respective adjusting units (20) for adjusting the headlights to vary light widths of the headlights (10); a first sensor unit (24) for measuring a first angular orientation of a first mounting plane of the first sensor unit (24) mounted on a first link element pivotally connected between at least one front wheel and the vehicle body (12); a second sensor unit (28) for measuring a second angular orientation of a second mounting plane of the second sensor unit (28) mounted on a second link element (40,50,60) pivotally connected between at least one rear wheel and the vehicle body (12); a third sensor unit (30) for measuring a third angular orientation of a third mounting plane extending in and fixed in relation to the vehicle body (12); and an evaluating unit (32) for controlling the adjusting units to adjust the light widths of the headlights (10) according to the first, second and third angular orientation measured by the sensor units.

Device for regulating light width of headlights for vehicles, and

The present invention provides a a headlight operable as a running light of a vehicle and, in particular, as a headlight of the vehicle for selectively projecting a low and a high beam. The headlight includes a reflector having a light source disposed therein. A beam position adjusting device operates to move the light source between its low beam position and its high beam position. The beam position adjusting device includes an electric powered drive motor and a displaceable interconnecting element interconnecting the beam position adjusting device and the light source. The device also includes a motion translation element for translating the drive output of the drive motor to displacement of the displaceable interconnecting element, the beam position adjusting device being operable to dispose the light source in its high beam position. A return movement device automatically biases the light source to move to its low beam disposition when the drive motor is not powered.

Vehicle headlight having low and high beams

A device for controlling a light width of headlights of a vehicle said displacing units adapted to be associated with the headlights and operative for changing a light width of a light bundle emitted by the headlights, at least one sensor unit provided with at least one deflection sensor which detects a deflection of a vehicle body at least on one axle of the vehicle, an evaluating unit connected with the sensor unit and at least approximately determining an inclination .gamma. of the vehicle body relative to a roadway from signals of the sensor unit and controlling the displacing units for at least approximately maintaining constant the light width of the light bundle emitted by the headlight, the at least one sensor unit being provided additionally with an inclination sensor which determines an inclination .beta. of the vehicle body relative to a direction toward a center of gravity.

Device for controlling the light width of headlights for vehicles

The headlight for a motor vehicle has with an electromotive adjusting device (5) for adjusting a reflector (2). The adjusting device (5) include an electric motor (7) and a step-down gear unit which are accommodated in a housing part (12) which is arranged within the headlight housing (1). The step-down gear unit includes a small worm gear (8) and a large toothed wheel (9) with radial teeth. A rotational movement of the toothed wheel (9) is transformed via a thread between the toothed wheel (9) and the housing part (12) into a movement of the toothed wheel (9) along an axis (6) determining the adjusting direction. The toothed wheel (9) is connected with the reflector (2) a ball-ended spindle which is held pivotally with one spherical end in a spindle receptacle attached to the toothed wheel so that, when the toothed wheel moves along the axis, the spindle moves to adjust the reflector. A deflecting gear unit with an adjusting part extending outside the headlight housing can be provided, which is coupled to the spindle so that the reflector can also be adjusted manually with the adjusting part.

Headlight for a motor vehicle having an adjustable motor-driven reflector

What follows is the description of an improved hydraulic apparatus for the automatic adjustment of the inclination of the headlights of a motor vehicle, the adjustment being a dependent function of the axle load. The apparatus has a level sensor at each axle and each level sensor contains one metering piston and two positioning pistons. The rear axle level sensor is connected via two separate hydraulic lines to the front axle sensor, and the front axle sensor is in turn connected via two separate hydraulic lines to the positioning elements of the headlight housings. The internal construction of the two level sensors is substantially identical and is chosen such that the system is also suitable for manual adjustment.

Hydraulic apparatus for the automatic correction of the inclination of

A command transmitter is in the form of a step switch with a progressive bridging contact, the individual contacts of the step switch being connected to individual contacts of a contact array over which a slider mounted on the drive rod that actuates the headlight elevation position slides. The inertia of the moving drive rod carries the slider beyond the last energized contact of the array. If a single contact array is used, a restoring spring pushes back the drive rod until it again touches an energized contact and the drive executes a hunting movement that is designed to provide no appreciable disturbence of the headlight position. When a second contact array and slider are used, in cooperation with a second set of contacts and a second bridging contact at the command transmitter, a reversible drive is used and there is no hunting movement. A non-reversible drive is provided by an expansion chamber drive controlled by an electrical heater. A reversible electric motor is used in the reversible drive.

Load trim compensating vehicle headlight deflection system

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Remshalden, Germany

Ulrich Zillgitt