Braking system having variable intensity light and sound warning
US5481243A · kind A · utility
Inventors
Key dates
| Filing date | Jul 26, 1994 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Jul 26, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q1/444
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle deceleration detection circuitry, upon which, a vehicle's rear brake lights will provide to a trailing vehicle, a continuous and variable intensity brake light as an indication of its braking pattern. In addition, in case of emergency braking, an additional light or strobe and an audible alert buzzer or horn will be turned on as to provide additional warning to a trailing vehicle. The vehicle deceleration detection circuit includes a microprocessor for providing continuous braking pattern indication, even if the vehicle is skidding on ice or oil; a condition which generates no G-force, which will not trip any mechanical detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.