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US 9,802,529 B2Granted
Method for controlling a cornering light and lighting device
AssigneeHella KGaA Hueck & Co.
InventorsMatthias Herntrich, Ingo Hoffmann
Life of this patent
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Abstract
The invention relates to a method for controlling a predictive cornering light with at least one headlight with a pivoting means for the controlled pivoting of the headlight, wherein a monitoring device is provided, which monitors the roadway and/or lane in front of the vehicle, and a control unit is provided, which, on the basis of the data of the monitoring device, drives the pivoting means for setting the headlight for illuminating the roadway and/or lane. The invention also relates to a lighting device in this regard.
Claims27
A method for controlling a predictive cornering light, the method comprising:
- providing a vehicle having at least one headlight comprising a pivoting element, an optical monitoring device that monitors a roadway or lane in front of the vehicle and generates roadway data, and a control unit,
- generating a model of a headlight light distribution using the roadway data,
- determining a pivoting angle by rotating the model of the headlight distribution to minimize a deviation between the model of the headlight light distribution and the roadway, actuating the pivoting element to set a headlight direction for illuminating the roadway or lane to match the pivoting angle,
- wherein minimizing the deviation between the model of the headlight light distribution and the roadway corresponds to minimizing a difference of at least one right-hand partial deviation between the roadway and the model and of at least one left-hand partial deviation between the roadway and the model of the headlight light distribution,
- wherein the model of the headlight light distribution is a section model,
- wherein each partial deviation between the model of the headlight light distribution and the roadway is determined by calculating at least one area between an illumination boundary in a section of the section model and a portion of a curve characterizing a roadway course or lane course corresponding to the section.
3 more elements
A method for controlling a predictive cornering light, the method comprising:
- providing a vehicle having at least one headlight comprising a pivoting element, an optical monitoring device that monitors a roadway or lane in front of the vehicle and generates roadway data, and a control unit,
- generating an auxiliary line using the roadway data,
- performing an area determination using the profile of the roadway data and an auxiliary line proceeding from the front of the vehicle,
- determining a point of intersection between the course of the roadway and the auxiliary line and using the point of intersection to characterize a pivoting angle,
- driving the headlight using the pivoting angle,
- wherein the area determination is effected in such a way that a predefinable ratio is achieved between a first area between the auxiliary line and the roadway course up to the point of intersection thereof and a second area between the auxiliary line and a roadway course after the point of intersection up to a predefinable distance.
3 more elements
A method for controlling a predictive cornering light, the method comprising:
- providing a vehicle having at least one headlight comprising a pivoting element, an optical monitoring device that monitors a roadway or lane in front of the vehicle and generates roadway data, and a control unit,
- generating a model of a headlight light distribution using the roadway data,
- determining a pivoting angle by rotating the model of the headlight distribution to minimize a deviation between the model of the headlight light distribution and the roadway, actuating the pivoting element to set a headlight direction for illuminating the roadway or lane to match the pivoting angle,
- wherein minimizing the deviation between the model of the headlight light distribution and the roadway corresponds to minimizing a sum of a plurality of partial deviations of the roadway from the model of the headlight light distribution,
- wherein the model of the headlight light distribution is a volume model,
- wherein determining each of the partial deviations is carried out by determining an intersection area between a roadway plane and a volume and by determining an at least one area proportion which lies on the left or on the right alongside the lane on the intersection area.
3 more elements
A method for controlling a predictive cornering light, the method comprising:
- providing a vehicle having at least one headlight comprising a pivoting element, an optical monitoring device that monitors a roadway or lane in front of the vehicle and generates roadway data, and a control unit,
- determining a first pivoting angle from the roadway data at a roadway point at a predetermined distance in front of the vehicle,
- determining a second pivoting angle from the first pivoting angle which depends in part on a curve radius of the roadway, actuating the pivoting element to set a headlight direction for illuminating the roadway or lane to match the second pivoting angle,
- wherein the first pivoting angle is determined by rotating a model of the headlight distribution to minimize a deviation between the model of the headlight light distribution and the roadway,
- wherein the second pivoting angle is determined in such a way that a straight line is determined, whose point of intersection with the ascertained roadway course having a curve radius or lane course having a curve radius is chosen such that the resulting two areas between the straight line and the roadway course having a curve radius or the lane course having a curve radius up to the predetermined distance assume a predefinable size ratio.
2 more elements
Dependencies are inferred from the claim text.