Vehicle headlight control using imaging sensor

  • US 6,831,261 B2
  • Filed: 04/30/2003
  • Issued: 12/14/2004
  • Est. Priority Date: 02/26/1993
  • Status: Expired due to Fees
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First Claim
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1. A headlamp control system for controlling at least one headlamp of a motor vehicle, said headlamp control system comprising:

  • an imaging array sensor having a field of view forward of the motor vehicle, said imaging array sensor comprising a plurality of pixels, said imaging array sensor capturing images within the field of view; and

    a control operable to process said captured images of said imaging array sensor, said control being operable to detect light sources in the field of view and to identify at least one of a headlamp of an approaching vehicle in the field of view and a taillight of a leading vehicle in the field of view, said control being operable to determine a pixel activity level, said pixel activity level being indicative of an environment in which the vehicle is operated, said control being operable to adjust a beam illumination state of the headlamp of the motor vehicle between a high-beam state and a low-beam state in response to identification of at least one of a headlamp of an approaching vehicle in the field of view and a taillight of a leading vehicle in the field of view and in response to said pixel activity level, said control being operable to limit adjusting of the state of the headlamp to the high-beam state when said pixel activity level is greater than a threshold level.

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