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Vehicular headlight apparatus

  • US 9,415,718 B2
  • Filed: 09/18/2014
  • Issued: 08/16/2016
  • Est. Priority Date: 06/08/2011
  • Status: Active Grant
First Claim
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1. A vehicular headlight apparatus comprising:

  • a headlight which illuminates ahead of a vehicle;

    means for changing a light illumination area of the headlight;

    means for recognizing ahead of the vehicle;

    means for calculating a position of a given target object based on data outputted from said recognizing means;

    means for detecting a speed of the vehicle; and

    means for controlling the changing means, when the given target object is detected, said controlling means working to change the light illumination area through said changing means in order to minimize dazzling to the given target objet based on analysis results derived by said calculating means,wherein when the speed of the vehicle, as detected by said detecting means, exceeds a given threshold value, said controlling means changes the light illumination area to a low-beam light illumination area earlier than when the speed of the vehicle is lower than the given threshold value; and

    wherein the vehicle headlight apparatus has three modes;

    a high-beam mode, an intermediate beam mode, and a low-beam mode, and a time when the intermediate beam mode is switched to the low-beam mode when the speed of the vehicle is higher than a predetermined value is earlier than that when the speed of the vehicle is lower than the predetermined value.

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