Drive assist system for vehicle
US5850176A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1997 |
| Grant date | Dec 15, 1998 |
| Priority date | — |
| Expiry date | Jun 19, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T7/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a vehicular drive assist system for warning a driver to pay attention to a preceding vehicle running ahead when a vehicle comes close to the preceding vehicle and the distance between these two vehicles becomes smaller than a safe inter-vehicle distance, this safe inter-vehicle distance is automatically established in two stages according to traffic conditions. One stage is where road is empty and another is where road is crowded. Since the safe inter-vehicle distance at the crowded condition is established to be a smaller value than the one at the empty condition, when road is crowded, due to the shortened safe inter-vehicle distance, warning is prevented from being issued so frequently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.