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Driving assistance system, method, and program for a vehicle

  • US 10,054,457 B2
  • Filed: 02/12/2015
  • Issued: 08/21/2018
  • Est. Priority Date: 03/31/2014
  • Status: Active Grant
First Claim
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1. A driving assistance system for a vehicle, the system comprising:

  • a processor programmed to;

    receive information from a GPS receiver indicating a current position of the vehicle;

    acquire a travel history of the vehicle;

    acquire a first guidance target point at which a guidance target event has occurred based on the travel history, the guidance target event being an event relating to a behavior of the vehicle or an event relating to a driving operation of a driver of the vehicle;

    acquire a plurality of area guidance target points, including the first guidance target point, wherein the area guidance target points exist within a predetermined area and distance of the first guidance target point and wherein the plurality of area guidance target points acquired is greater than a predetermined number designated for the predetermined area;

    acquire a driving level index, wherein the driving level index indicates a tendency of a driving operation of a driver of the vehicle based on the travel history for each of the area guidance target points;

    acquire for each area guidance target point, a respective surrounding condition index, wherein each respective surrounding condition index indicates a current surrounding condition of each respective area guidance target point;

    calculate for each area guidance target point, an adjusted index, wherein the adjusted index is the product of the surrounding condition index of the respective area guidance target point and the driving level index of the respective area guidance target point;

    calculate the sum of the adjusted indexes of the area guidance target points; and

    determine to provide on a vehicle display the centroid of the area guidance target points only when the calculated sum of the adjusted indexes of the area guidance target points is greater than a predetermined threshold; and

    when the current position of the vehicle becomes closer to the guidance target point, provide guidance relating to the guidance target event for which it is determined to provide the guidance;

    wherein the surrounding condition is at least one of a traffic condition, a weather condition, and a road shape condition.

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