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On-vehicle light distribution control system

  • US 9,056,581 B2
  • Filed: 10/18/2010
  • Issued: 06/16/2015
  • Est. Priority Date: 10/18/2010
  • Status: Expired due to Fees
First Claim
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1. An on-vehicle light distribution control system for controlling light distribution of headlights, the on-vehicle light distribution control system comprising:

  • a vehicle detecting unit configured to detect a front vehicle travelling in front of a self-vehicle;

    a detection difficulty determining unit configured to determine difficulty of the detection of the front vehicle by the vehicle detecting unit within a detection range of the vehicle detecting unit;

    an operational condition changing unit configured to change an operational condition of light distribution control according to a determination result of the detection difficulty determining unit; and

    a light distribution control state display unit configured to display a present state of the light distribution control for which the operational condition is changed by the operational condition changing unit,wherein the operational condition changing unit reduces a light distribution control upper limit distance as the difficulty in detecting a front vehicle increases, and increases the light distribution control upper limit distance as the difficulty in detecting a front vehicle decreases.

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