Vehicular hazard warning system
US4357594A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1980 |
| Grant date | Nov 2, 1982 |
| Priority date | — |
| Expiry date | Jun 2, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q1/46
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicular hazard warning system has an indicator on the vehicle that is energizable to yield a warning signal. The onset of a hazardous condition is detected and, as a result, a control signal is developed which has a variable parameter the amount of which is proportional to the degree of hazard represented by the condition. In response to that condition, the indicator is energized in a manner which quantitatively has a magnitude that is proportional to the amount of hazard. The system primarily responds to abrupt deceleration. It also preferably is responsive to such other inputs as brake pressure, wheel speed change, inertial forces and operator-controlled pedal movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.