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Car Information System, Map Server And On-Board System

  • US 20080147305A1
  • Filed: 12/06/2007
  • Published: 06/19/2008
  • Est. Priority Date: 12/07/2006
  • Status: Active Grant
First Claim
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1. A car information system for communicating with a driving control unit located in a vehicle, and for controlling the driving control unit so that the driving control of the vehicle is performed, the car information system comprising:

  • a map database (DB) in which map data is registered, the map data including a link constituting a road, a road shape of the link, and attribute data of the link;

    a support area management table in which each kind of attribute data of the map data is associated with information for identifying a field-researched area (support area); and

    control means for estimating a traveling area through which the vehicle travels, for using said support area management table to judge whether or not attribute data included in the estimated area is associated with the support area, and for, if it is judged that the attribute data is associated with the support area, controlling the driving control unit so that the driving control of the vehicle is performed by use of the map data, whereas if it is judged that the attribute data is not associated with the support area, not performing the driving control of the vehicle by use of the map data.

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