Device and method for controlling optical axis of headlamps
First Claim
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1. An optical axis controller for at least one headlamp mounted on a vehicle with a steering wheel, the controller comprising:
- a steering angle detecting device operable to detect a steering angle;
a driving device operable to adjust a light emission direction of the at least one headlamp; and
a control unit operable to compute a desired light emission direction for the headlamps based on the steering angle and a hysteresis value and to control an actual light emission direction of the at least one headlamp to match the desired light emission direction using the driving device.
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Abstract
An optical axis controller and method for headlamps for a vehicle where the swiveling lamps are not driven due to the minute steering operation of the driver. The steering angle of the steering wheel is detected by using, for example, a steering angle signal from a steering angle sensor. A desired light emission direction is computed based on the steering angle and a hysteresis value and the lamps are driven to an actual light emission direction matching the desired light emission direction.
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Citations
46 Claims
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1. An optical axis controller for at least one headlamp mounted on a vehicle with a steering wheel, the controller comprising:
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a steering angle detecting device operable to detect a steering angle;
a driving device operable to adjust a light emission direction of the at least one headlamp; and
a control unit operable to compute a desired light emission direction for the headlamps based on the steering angle and a hysteresis value and to control an actual light emission direction of the at least one headlamp to match the desired light emission direction using the driving device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A method of controlling an optical axis of at least one headlamp of a vehicle, comprising:
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detecting a steering angle of the vehicle;
computing a desired light emission direction of the at least one headlamp based on the steering angle and a hysteresis value; and
controlling an actual light emission direction of the at least one headlamp to match the desired light emission direction. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46)
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Specification