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Vehicle headlight control system and method

  • US 9,694,737 B2
  • Filed: 06/16/2014
  • Issued: 07/04/2017
  • Est. Priority Date: 06/16/2014
  • Status: Active Grant
First Claim
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1. A vehicle headlight control method comprising:

  • generating host vehicle information with a positioning system, the host vehicle information including a host vehicle location and a host vehicle trajectory;

    receiving remote vehicle information with a receiver, the remote vehicle information including a remote vehicle location and a remote vehicle trajectory;

    calculating a remote vehicle distance from the host vehicle location with a controller based on the remote vehicle information and the host vehicle information;

    determining with the controller whether the host vehicle trajectory and the remote vehicle trajectory are such that the remote vehicle will pass by the host vehicle within a predetermined distance and whether the remote vehicle distance is less than the predetermined distance;

    determining with the controller whether the host vehicle information and the remote vehicle information indicate a converging path or a diverging path based on the host vehicle trajectory and the remote vehicle trajectory by determining an absolute value of the difference between a heading angle of the host vehicle and an angle between a direction of the host vehicle and a straight line from the host vehicle to the remote vehicle; and

    automatically operating with the controller a headlight of the host vehicle in a first setting while the remote vehicle distance is determined to be less than the predetermined distance and only when the converging path is indicated.

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