Apparatus and method for automatically adjusting optical axis of vehicle headlights
US6626564B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2001 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Sep 28, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q2300/322
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a headlight optical axis adjusting apparatus and method for a vehicle, the shape of a road in front of the vehicle is detected by a CCD camera based on a change in lane marking line which indicates the lane width on the road, before the steering angle of a vehicle steering wheel is detected by a steering angle sensor. Left and right swivel lights of the vehicle are swiveled and adjusted based on the change in the lane marking line or the steering angle. The optical axis of the left or right swivel light is first swiveled and adjusted based on the change in the lane marking line. The driver's forward visibility can thus be improved before the driver turns the steering wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.