Method and device for adjusting a beam direction of a headlight, and motor vehicle
AssigneeAudi AG
InventorsChristian Funk, Alfons Siedersbeck
Life of this patent
Estimating the term…
Abstract
A method for adjusting a beam direction of a headlight of a vehicle having at least one front wheel and at least one rear wheel includes the following steps: a) detecting a front wheel steering angle of the at least one front wheel; b) detecting a rear wheel steering angle of the at least one rear wheel; c) defining a beam direction of the headlight depending on the front wheel steering angle and the rear wheel steering angle; and d) adjusting the beam direction of the headlight to the defined beam direction. The adjustment depends on whether the rear-wheel steering angle and the front wheel steering angle are oriented in the same direction or in opposite directions.
Claims13
A method for adjusting a beam direction of a headlight of a vehicle with at least one front wheel and at least one rear wheel, the method comprising the steps of:
- a) detecting a front wheel steering angle of the at least one front wheel,
- a1) defining a comparison beam direction of the headlight as a function of the front wheel steering angle without taking into consideration the rear wheel steering angle,
- b) detecting a rear wheel steering wheel angle of the at least one rear wheel;
- c) defining a beam direction of the headlight as a function of the front wheel steering angle and the rear wheel steering angle, wherein
- in the event that the rear-wheel steering angle and the front wheel steering angle are oriented in opposite directions in relation to a respective neutral position of the associated rear wheel or front wheel, the beam direction is defined at step c) so as to be oriented more strongly in the direction of the front wheel steering angle in relation to the comparison beam direction,
- and
- in the event that the rear-wheel steering angle and the front wheel steering angle are oriented in an identical direction in relation to the respective neutral position of the associated rear wheel or front wheel, the beam direction is defined at step c) so as to be oriented less strongly in the direction of the front wheel steering angle in relation to the comparison beam direction, and
- d) adjusting the beam direction of the headlight to the defined beam direction.
A method for adjusting a beam direction of a headlight of a vehicle with at least one front wheel and at least one rear wheel, the method comprising the steps of:
- a) detecting a front wheel steering angle of the at least one front wheel,
- b) detecting a rear wheel steering wheel angle of the at least one rear wheel;
- c) defining a beam direction of the headlight as a function of the front wheel steering angle and the rear wheel steering angle, and
- d) adjusting the beam direction of the headlight to the defined beam direction,
- wherein step c) comprises the following sub-steps:
- c1) determining a correction value from the rear wheel steering angle;
- c2) determining a fictitious front wheel steering angle from the front wheel steering angle and the correction value;
- and
- c3) defining the beam direction of the headlight as a function of the fictitious front wheel steering angle.
A device for adjusting a beam direction of a headlight of a vehicle with at least one front wheel and at least one rear wheel, the device comprising:
- an acquisition unit configured to acquire a front wheel steering angle of the at least one front wheel and a rear wheel steering angle of the at least one rear wheel;
- a computing unit configured to define a beam direction of the headlight as a function of the front wheel steering angle and the rear wheel steering angle by
- determining a correction value from the rear wheel steering angle;
- determining a fictitious front wheel steering angle from the front wheel steering angle and the correction value;
- and
- adjusting the beam direction of the headlight as a function of the fictitious front wheel steering angle, and
- an actuating unit configured to adjust the beam direction of the headlight to the defined beam direction.
Dependencies are inferred from the claim text.