Brake lamp illumination on a trailer by sensing wheel speed deceleration
US6587044B2 · kind B2 · utility
4Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2001 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Dec 6, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q1/448
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A brake lamp illumination system for a trailer senses when the speed of the wheels decreases. If the system detects such a deceleration, the system senses whether power has been supplied to illuminate brake lamps provided on the vehicle. If no power is detected in the circuit which supplies power to the brake lamps, power is directed to the circuit to illuminate the brake lamps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.