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Human perception model for speed control performance

  • US 7,895,135 B2
  • Filed: 02/12/2007
  • Issued: 02/22/2011
  • Est. Priority Date: 02/12/2007
  • Status: Active Grant
First Claim
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1. A human perception model for a speed control method, comprising the steps of:

  • obtaining, by a vehicle control system, a steering angle;

    obtaining, by the vehicle control system, a velocity error;

    obtaining, by the vehicle control system, a distance error, wherein the distance error is a difference between a required path and a determined actual location;

    establishing the required path which serves as an input to said obtaining a distance error step;

    establishing required vehicle speed set points as an input to said obtaining a distance error step;

    applying, by the vehicle control system, said steering angle, said velocity error and said distance error to fuzzy logic membership functions to produce an output that is applied to a velocity rule base;

    inputting, by the vehicle control system, a measure of operator aggressiveness to said velocity rule base; and

    defuzzifying, by the vehicle control system, an output from said velocity rule base to produce a speed signal.

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