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Electronic controller using genetic evolution techniques suitable for controlling a motor

  • US 6,032,139 A
  • Filed: 09/29/1997
  • Issued: 02/29/2000
  • Est. Priority Date: 09/27/1996
  • Status: Expired due to Fees
First Claim
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1. A method for controlling performance of a motor used by a user, which motor is operable by causative signals, the performance of which motor is indicatable by indicative signals, said motor being controlled by a control system provided with said motor and comprising:

  • (i) a base value output unit to output a base value of a causative signal when receiving pre-selected signals, said base value output unit preventing said motor from malfunctioning; and

    (ii) an evolution unit comprising a control module programmed to output and add a compensation value to the base value of the causative signal when receiving pre-selected signals, wherein the input-output relationship of the control module is regulated by coefficients;

    said evolution unit provided with a genetic algorithm unit programmed to select fitted coefficients based on a selection signal when using coefficients as genes, wherein the selected fitted coefficients replace the coefficients used in the control module to update its input-output relationship;

    said method being conducted without discontinuing performance of said motor comprising the steps of;

    (a) outputting the causative signals from the base value;

    (b) outputting and adding a compensation value to the base value of the causative signal to operate said motor;

    (c) selecting fitted coefficients by the genetic algorithm unit based on a selected selection signal, said selection signal inputted by the user in response to the performance of said motor based on its indicative signals while said motor is in operation; and

    (d) replacing the coefficients used in the control module to update its input-output relationship to control said motor whereby said control system is updated on a real time basis to adapt performance of said motor to the user.

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