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System and method for monitoring driver fatigue

  • US 8,396,630 B2
  • Filed: 12/01/2009
  • Issued: 03/12/2013
  • Est. Priority Date: 12/01/2008
  • Status: Active Grant
First Claim
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1. A driver fatigue and inattention monitoring system for a vehicle with a steering system, comprising:

  • a perturbation device in combination with the steering system for imposing a controlled disturbance into the steering system;

    a controller actuating the perturbation device at one of a predetermined time and a distance traveled;

    a monitoring device including sensors in sensing combination with the steering system, wherein the monitoring device determines whether a driver input has compensated for the imposed disturbance; and

    a warning device activatable by the monitoring device when the driver input has not compensated for the imposed disturbance.

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