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...

2005-07-01

2008-11-25

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

Data processing: generic control systems or specific application

Generic control system, apparatus or process

Optimization or adaptive control

C700S037000, C700S041000, C700S042000, C700S044000, C700S045000

Reexamination Certificate

active

07457673

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: 6041264 (2000-03-01), Wruck et al.
patent: 2002/0095272 (2002-07-01), DiTommaso et al.
patent: 2002/0117214 (2002-08-01), Tucker et al.
patent: 2004/0256473 (2004-12-01), Hull et al.

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