System and method for controlling exterior vehicle lights on motorways

  • US 9,187,029 B2
  • Filed: 10/01/2014
  • Issued: 11/17/2015
  • Est. Priority Date: 10/01/2013
  • Status: Active Grant
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First Claim
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1. An exterior light control system for controlling exterior lights of a controlled vehicle, comprising:

  • an imaging system configured to image a scene external and forward of the controlled vehicle and to generate image data corresponding to the acquired images; and

    a controller configured to receive and analyze the image data and for generating an exterior light control signal that is used to control the exterior lights in response to analysis of the image data and in response to a selected mode of operation,if said controller detects headlamps of one or more oncoming vehicle, said controller is configured to generate an exterior light control signal for reducing the brightness of the exterior lights, to determine a relative location within the acquired images of a headlamp closest to a central feature of the acquired images, and to select a delay that varies dynamically in response to the relative location of the headlamp, and wherein, upon determining that oncoming headlamps are no longer present in the acquired images that require the exterior lights to remain in a reduced brightness state, said controller is configured to nevertheless continue to analyze acquired images for the selected delay before generating an exterior light control signal for increasing the brightness of the exterior lights.

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