Drive assist system for a vehicle and the method thereof
US5808561A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1997 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Mar 17, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P3/68
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a drive assist system of a vehicle having a function of detecting an inter-vehicle distance between vehicles and a warning is given to a driver for preventing a collision, disclosed are an apparatus for detecting a deceleration of a preceding vehicle based on a vehicle speed of the preceding vehicle, an apparatus for establishing a safe inter-vehicle distance between the vehicle and the preceding vehicle based on the deceleration of the preceding vehicle, and an apparatus for comparing the inter-vehicle distance with the safe inter-vehicle distance and for outputting a warning signal when the inter-vehicle distance is smaller than the safe inter-vehicle distance. Thus, when the deceleration of the preceding vehicle is small, the warning is not issued until the inter-vehicle distance becomes small, whereby the driver's intention can be reflected on the drive assist system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.