METHOD AND CONTROL UNIT FOR ADAPTING AN UPPER HEADLIGHT BEAM BOUNDARY OF A LIGHT CONE
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Abstract
A method for adapting an upper headlight beam boundary of a light cone of at least one headlight of a vehicle. The method includes detecting a time curve of a pitch rate of the vehicle or a value that is dependent on the pitch rate and/or of a roll rate of the vehicle or a value that is dependent on the roll rate. The method also includes ascertaining an envelope curve and/or an amplitude of the time curve and/or an average value of the time curve. The method also includes providing a control signal for adapting the upper headlight beam boundary of the headlight beam.
27 Citations
29 Claims
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1-14. -14. (canceled)
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15. A method for adapting an upper headlight beam boundary of a light cone of at least one headlight of a vehicle, the method comprising:
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detecting a time curve of at least one of;
i) a pitch rate of the vehicle, ii) a value that is dependent on the pitch rate, iii) a roll rate of the vehicle, and iv) a value that is dependent on the roll rate;ascertaining at least one of an envelope curve, an amplitude of the time curve, and an average value of the time curve; and at least one of;
i) providing a control signal for adapting the upper headlight beam boundary using the envelope curve, in response to a change in the envelope curve, ii) providing the control signal for adapting the upper headlight beam boundary using the amplitude, the upper headlight beam boundary being adapted more steeply in a direction of the roadway ahead of the vehicle the greater the amplitude, and iii) providing the control signal for adapting the upper headlight beam boundary using the average value of the curve, the upper headlight beam boundary being adapted more steeply in the direction of the roadway ahead of the vehicle the more negative the average value of the curve. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A control unit for adapting an upper headlight beam boundary of a light cone of at least one headlight of a vehicle, the control unit comprising:
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a detection device to detect a time curve of at least one of a pitch rate of the vehicle, a value that is dependent on the pitch rate, a roll rate of the vehicle, or a value that is dependent on the roll rate; a device to ascertain at least one of an envelope curve, an amplitude of the time curve, and an average value of the time curve; and a device to at least one of;
i) provide a control signal for adapting the upper headlight beam boundary, using the envelope curve, in response to a change in the envelope curve, ii) provide a control signal for adapting the upper headlight beam boundary using the amplitude, the upper headlight beam boundary being adapted more steeply in the direction of the roadway ahead of the vehicle the greater the amplitude, and iii) provide the control signal for adapting the upper headlight beam boundary using the average value of the curve, the upper headlight beam boundary being adapted more steeply in the direction of the roadway ahead of the vehicle the more negative the average value of the curve.
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29. A computer-readable storage medium storing program code for adapting an upper headlight beam boundary of a light cone of at least one headlight of a vehicle, the program code, when executed by a control unit, causing the control unit to perform the steps of:
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detecting a time curve of at least one of a pitch rate of the vehicle, a value that is dependent on the pitch rate, a roll rate of the vehicle, and a value that is dependent on the roll rate; ascertaining at least one of an envelope curve, an amplitude of the time curve, and an average value of the time curve; and at least one of;
i) providing a control signal for adapting the upper headlight beam boundary using the envelope curve, in response to a change in the envelope curve, ii) providing the control signal for adapting the upper headlight beam boundary using the amplitude, the upper headlight beam boundary being adapted more steeply in a direction of the roadway ahead of the vehicle the greater the amplitude, and iii) providing the control signal for adapting the upper headlight beam boundary using the average value of the curve, the upper headlight beam boundary being adapted more steeply in the direction of the roadway ahead of the vehicle the more negative the average value of the curve.
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Specification