Patent · US Expired

Method for automatically controlling lighting devices and device for carrying out the method

US6909236B2 · kind B2 · utility

1Cited by
7References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 29, 2001
Grant dateJun 21, 2005
Priority date
Expiry dateDec 29, 2021

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60Q2300/337
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

In a method for the automatic control of lighting devices, particularly of a motor vehicle, and a device for implementing the method, the brightness in a specific direction being detected by at least one directional sensor which emits direction signals to a control device, the control device switching on the lighting devices after a minimum time has elapsed. The minimum time begins when the direction signals exceed or drop below a switch-on threshold. The lighting devices are only switched on when the direction signals lie above or below the switch-on threshold during the entire minimum time. To that end, the control device is connected to a timer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.