Process for rapidly controlling a process variable without...

Details Process for rapidly controlling a process variable without... Process for rapidly controlling a process variable without...

2011-04-05

2011-04-05

Hartman, Jr., Ronald D (Department: 2121)

Data processing: generic control systems or specific application

Generic control system, apparatus or process

Optimization or adaptive control

C700S028000, C700S037000, C700S042000, C700S044000, C700S045000

Reexamination Certificate

active

07920930

ABSTRACT:
A method for controlling a process variable as it approaches a predetermined value (setpoint) so that the setpoint is not exceeded. The method employs a time domain polynomial equation in a feedback configuration and utilizes a controller that acts as an On/Off controller until the process variable approaches setpoint. As the process variable approaches setpoint, the controller acts as a fast responding analog controller thereby “tailoring” a control variable to precisely bring the process variable to the setpoint without exceeding or overshooting the setpoint.

REFERENCES:
patent: 3419777 (1968-12-01), Asseo
patent: 5191521 (1993-03-01), Brosilow
patent: 5394322 (1995-02-01), Hansen
patent: 5754424 (1998-05-01), Melvin
patent: 7546170 (2009-06-01), Ayala et al.

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