Data mining in a digital map database to identify curves along downhill roads and enabling precautionary actions in a vehicle
US8332143B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 30, 2008 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Apr 11, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3697
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a feature for a vehicle that enables taking precautionary actions in response to conditions on the road network around or ahead of the vehicle, in particular, a curve along a downhill road segment. A database that represents the road network is used to determine locations where a curve is located along a downhill road segment. Then, precautionary action data is added to the database to indicate such a location. A precautionary action system installed in a vehicle uses this database, or a database derived therefrom, in combination with a positioning system to determine when the vehicle is at such a location, at which a precautionary action is taken by a vehicle system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.