Headlamp for vehicles and projection method
AssigneeHella GmbH & Co. KGaA
InventorsBoris Kubitza, Carsten Wilks
Life of this patent
Estimating the term…
Abstract
A headlamp for vehicles that has a light source unit. Numerous light sources and/or light guides are controllable individually. A sensor unit for detects headlamp status data and/or vehicle environment data. A control unit for controlling the light sources and/or light guides generates a predefined light distribution for the headlamp. The range of the headlamp can be adjusted on the basis of sensor signals from the sensor unit. The control unit contains a control element for the light sources and/or light guides for projecting a guide marking onto a road surface. The control unit contains a compensator that compensates for deviations in the guide marking on the basis of a sensor signal generated by the sensor unit.
Claims15
A headlamp for a vehicle, the headlamp comprising:
- a light source unit comprising a plurality of light sources and/or light guides that can be controlled individually;
- a sensor unit for detecting headlamp status data and/or vehicle environment data;
- and
- a control unit for controlling the plurality of light sources and/or light guides to generate a predefined light distribution for the headlamp, wherein a range of the headlamp is adjustable based on sensor signals from the sensor unit,
- wherein the control unit comprises a control element for the plurality of light sources and/or light guides for projecting a guide marking on a road surface,
- wherein the guide marking comprises two tracking lines that converge in front of the vehicle at a convergence angle when the vehicle is traveling in a straight path, and
- wherein the control unit comprises a compensator that compensates for deviations in the convergence angle between the tracking lines of the guide marking based on a sensor signal generated by the sensor unit.
A method for projecting a guide marking onto a road surface via a headlamp for a vehicle, the method comprising:
- controlling a plurality of light sources and/or light guides in a light source unit, such that the guide marking for a predefined path, which is based on a vehicle operating parameter, is continuously projected onto the road surface while the vehicle is traveling, wherein the guide marking comprises two tracking lines that converge in front of the vehicle at a convergence angle when the vehicle is traveling in a straight path, and
- setting the path of the guide marking based on the vehicle operating parameter, wherein the vehicle operating parameter includes an inclination angle (φ) detected for the vehicle, and wherein deviations in the convergence angle between the tracking lines of the guide marking are compensated for based on the vehicle operating parameter.
Dependencies are inferred from the claim text.