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Road surface condition determining system

  • US 10,377,385 B2
  • Filed: 10/06/2015
  • Issued: 08/13/2019
  • Est. Priority Date: 10/06/2014
  • Status: Active Grant
First Claim
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1. A system for determining a road surface condition comprising:

  • a plurality of vehicles, each vehicle includingon-board sensors for acquiring vehicular information, which is information on the behavior of a vehicle during travel,a feature value calculator that calculates a plurality of feature values for estimating the condition of the road surface on which the vehicle is traveling from the vehicular information acquired by the on-board sensors, anda transmitter that transmits the feature values to the outside of the vehicle; and

    a road surface condition management center includinga server for accumulating the feature values transmitted from the transmitter of each of the plurality of vehicles; and

    a road surface condition determining unit for determining a road surface condition using the accumulated feature values of the plurality of vehicles;

    wherein the transmitted feature values are the feature values for a location within a predetermined range within a predetermined space of time, andwherein the road surface condition determining unit determines the road surface condition at the location within the predetermined range within the predetermined space of time, using the feature values of the plurality of vehicles;

    wherein the road surface condition determining unit comprises;

    a feature value calculated value calculator that calculates feature value calculated values, which are the calculated values based on feature values from the plurality of vehicles at the location within the predetermined range within the predetermined space of time, for the plurality of feature values, respectively;

    a feature value identification value calculator that calculates feature value identification values to be obtained by inputting the plurality of feature value calculated values to the respective road surface identification functions set in advance for the respective road surface conditions, for the respective road surface identification functions;

    a road surface condition determiner that determines the road surface condition at the location within the predetermined range within the predetermined space of time, using the feature value identification values calculated for the respective road surface identification functions, anda transmitter that transmits the determined road surface condition to the vehicle, wherein the determined road surface condition is displayed on a monitor within the vehicle to allow a driver to be informed of the determined road surface condition or is fed back to a vehicle control to safely control the vehicle.

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