Speed dependent vehicle courtesy lamp control for an automobile
US6133827A · kind A · utility
32Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1993 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Jul 1, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q3/80
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An interior lamp control using a microprocessor to monitor the ignition switch, door ajar switches, and vehicle speed deactivates the interior lamp if vehicle speed exceeds a speed threshold even though the state of the input switches otherwise indicates that the interior lamp should be illuminated. The lamp will not again illuminate until after the speed decreases below a lower speed threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.