Collision warning system
US5459460A · kind A · utility
7Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1993 |
| Grant date | Oct 17, 1995 |
| Priority date | — |
| Expiry date | Jun 15, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P7/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A collision warning system is mounted on a vehicle to issue an alarm when the vehicle approaches near an obstacle running in front of the vehicle. The system detects a speed (Vf) of the vehicle; a distance (R) between the vehicle and the obstacle; a speed (Va) of the obstacle using both the speed (Vf) of the vehicle and the distance (R). The collision warning system issues an alarm to a driver if the following relationship exists between the vehicle and the obstacle: EQU Vf.times.Td+(Vf-Va).sup.2 /2.alpha..gtoreq.R PA1 wherein: PA2 Td: a fixed time period, and PA2 .alpha.: a braking performance of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.