Method of controlling tension in a web
AssigneeThe Procter & Gamble Company
InventorMichael Joseph Franz
Life of this patent
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Abstract
A method of controlling tension in a material handling process. An error signal of the process is determined. The velocity analog value of the material is determined and an instantaneous integral gain is then determined according to the velocity analog value. A proportional gain is determined. The output of a controller is then adjusted according to the error signal, the instantaneous integral gain, and the proportional gain.
Claims16
A method of adjusting an output in a process for handling a material having a velocity analog value, the method comprising the steps of:
- a) determining an error signal;
- b) determining an instantaneous integral gain according to the velocity analog value;
- c) determining a proportional gain;
- and
- d) adjusting a process output according to the instantaneous integral gain and the proportional gain.
A method of controlling a process for handling a material having a velocity analog value, and a tension, the method comprising the steps of:
- a) determining a set point for the tension;
- b) determining the tension;
- c) determining a tension error;
- d) determining the velocity analog value;
- e) determining an instantaneous integral gain according to the velocity analog value;
- f) determining a proportional gain;
- and
- g) adjusting a process output according to the tension error, the proportional gain, and the instantaneous integral gain.
Dependencies are inferred from the claim text.