Process and apparatus for the control of the light distribution of a headlight arrangement of a vehicle
US6443603B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 2000 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Oct 20, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q2300/42
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A process and apparatus are provided for the control of the light distribution of a headlight arrangement of a vehicle with at least one first light sensor which senses light emissions acting on a driver from the field of vision in the direction of travel for various areas of the field of vision. A comparator device compares the intensity of the light emissions for each area with a threshold value. A control device controls the light distribution of the headlight arrangement as a function of a signal of the comparator device. In order to provide an improved process and an improved apparatus for the control of the light distribution of a headlight arrangement of a vehicle, it is proposed for the light distribution in the sense of an increase of the illumination of the edge of the road of the driver's own side of the road to provide a turn-off delay combined with a deadtime connected before it. The threshold value for the comparator device is a function of the ambient brightness which is determined over a certain time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.