Invention Grant
- Patent Title: Data mining in a digital map database to identify decreasing radius of curvature along roads and enabling precautionary actions in a vehicle
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Application No.: US14196640Application Date: 2014-03-04
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Publication No.: US10012510B2Publication Date: 2018-07-03
- Inventor: Robert Denaro
- Applicant: Navteq B.V.
- Applicant Address: NL Eindhoven
- Assignee: HERE Global B.V.
- Current Assignee: HERE Global B.V.
- Current Assignee Address: NL Eindhoven
- Agency: Lempia Summerfield Katz LLC
- Main IPC: G08G1/09
- IPC: G08G1/09 ; G01C21/26 ; B60W40/072 ; B60W40/076 ; G01C21/36 ; G06F17/30

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 curved portion of a road where the curvature increases between adjacent curved sections. A database that represents the road network is used to determine locations where curvature between adjacent curved sections increases. Then, precautionary action data is added to the database to indicate a location at which a precautionary action is to be taken about the location where curvature increases. 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 a location that corresponds to the location of a precautionary action. When the vehicle is at such a location, a precautionary action is taken by a vehicle system as the vehicle is approaching a location where the curvature increases.
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