Automatic beam-axis adjustment system for vehicular headlights
AssigneeDenso Corporation
InventorsToshio Sugimoto, Kenichi Nishimura, Kazuhisa Okumura
Life of this patent
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Abstract
In an automatic beam-axis adjustment system, a beam-axis of a headlight is gradually swivel to a position determined based on a steering angle of a steering wheel. The beam-axis returns to the initial position and a swivel control is inhibited when a vehicle is at a stop or slowly moving in an intersection, regardless of the steering angle. The swivel control is restarted after the vehicle starts running straight ahead. In other words, the swivel control is not restarted until the vehicle stats running straight ahead even when the speed of the vehicle exceeds a predetermined value. Therefore, the movement of the headlights does not disturb a driver.
Claims8
An automatic beam-axis adjustment system for a vehicular headlight, comprising:
- a speed determination means for determining a vehicle speed;
- a steering angle determination means for determining a steering angle of a steering wheel of the vehicle;
- a swivel control means for horizontally adjusting a beam-axis of the vehicular headlight based on the vehicle speed and the steering angle determined by the speed determination means and the steering angle determination means, respectively;
- and
- a signal detecting means for detecting different kinds of signals related to a turning condition of the vehicle, wherein
- the swivel control means uses a different procedure to adjust the beam-axis when an indication of a turn is provided.
Dependencies are inferred from the claim text.