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Vehicular light distribution control system and vehicular light distribution control method

  • US 8,972,117 B2
  • Filed: 11/12/2010
  • Issued: 03/03/2015
  • Est. Priority Date: 11/12/2010
  • Status: Active Grant
First Claim
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1. A vehicular light distribution control system configured to control a light distribution of headlights, comprising:

  • a vehicle detecting part configured to detect an anterior vehicle driving in front of an occupant'"'"'s vehicle;

    an unirradiated region setting part configured to set a region where the anterior vehicle detected by the vehicle detecting part exists as an unirradiated region;

    a vehicle motion estimating part configured to estimate an ensuing motion of the anterior vehicle detected by the vehicle detecting part;

    an unirradiated region adjusting part configured to adjust before the estimated ensuing motion occurs a size of the unirradiated region set by the unirradiated region setting part depending on the ensuing motion estimated by the vehicle motion estimating part; and

    a light distribution controlling part configured to generate before the estimated ensuing motion occurs a light distribution pattern including the unirradiated region whose size has been adjusted by the unirradiated region adjusting part,wherein the unirradiated region adjusting part determines on an expanding direction or a contracting direction of the unirradiated region depending on the estimated ensuing motion, and determines on a step size of expansion or a step size of contraction of the unirradiated region and an expansion rate or a contraction rate of the unirradiated region depending on an inter-vehicular distance between the occupant'"'"'s vehicle and the anterior vehicle or a relative velocity of the anterior vehicle to the occupant'"'"'s vehicle.

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