US7016743B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Model-free adaptive control of quality variables
Assignee: General Cybernation Group Inc
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Filing: 2004-01-14
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Granted: 2006-03-21
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Expires: 2024-01-14
Abstract
Abstract A Model-Free Adaptive Quality Variable control system is disclosed for effectively controlling quality variables on-line in closed-loop fashion. It is able to automatically control quality variables under the conditions where there are significant varying time delays and disturbances in the process. Because of its unique capability, the control system is useful for building flexible and adaptive production systems, achieving Six Sigma quality control goals, and fulfilling the on demand manufacturing needs in the new e-commerce environment.
Inventors
- 👤 George Shu-Xing Cheng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:12
CPC Classifications
G; G05; G05B; G05B13/00; G05B13/02; G05B13/0205; G05B13/024; G05B13/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A method of adjusting the performance of a model-free adaptive controller having a delay predictor, comprising the steps of: a) establishing a selectable performance index Ip ranging from substantially 0.01 to substantially 100; b) setting the controller gain as Kc=Ip/K, where Kc is the controller gain, K is the estimated process static gain, and Ip is the selected performance index; and c) setting the controller time constant as Tc=T/Ip, where Tc is the controller time constant, T is the estimated time constant of said delay predictor, and Ip is the selected performance index.
Claim 2
Independent Claim
93 words
A method of adjusting the performance of a model-free adaptive controller having a delay predictor, comprising the steps of: a) establishing a selectable performance index Ip ranging from substantially 0.01 to substantially 100; b) setting the controller gain as Kc=Ip/K, where Kc is the controller gain, K is the estimated process static gain, and Ip is the selected performance index; and c) setting the controller time constant as Tc=T/Ip, where Tc is the controller time constant, T is the estimated time constant of said delay predictor, and Ip is the selected performance index.
References Cited (Backward Citations)
US4214300A
Cited
US5272621A
Cited
US5394322A
Cited
US5159660A
Cited
US5291390A
Cited
US5353207A
Cited
US5486996A
Cited
US5568378A
Cited
US5566065A
Cited
US5570282A
Cited
US5838561A
Cited
US6363289B1
Cited
US6055524A
Cited
US6260131B1
Cited
US6556980B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-03-20 | 2009-09-19 | 2010-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-03-20 | 2013-09-19 | 2014-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-03-20 | 2017-09-19 | 2018-03-21 | $7700.00 | Window Closed / Lapsed |