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US5208744A
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Automatic adjustment system for a process controller
Assignee: Toshiba Corp
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Filing: 1991-02-14
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Granted: 1993-05-04
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Expires: 2011-02-14
Abstract
Abstract A control supporting system for automatically determining control constants, including proportional gain, integral time and derivative time, of a controller used for controlling a given system in accordance with characteristics of the given system and control characteristics demanded of the controller. The control supporting system includes an automatization level determining unit for determining the desired level of automatization of the controller, in accordance with the characteristics of the given system and the control characteristics demanded of the controller, an algorithm memory unit for storing a plurality of algorithms to determine the control constants, an algorithm selecting unit for selecting an algorithm from among the plurality of algorithms in accordance with the determined automatization level, and an algorithm execution unit for executing the algorithm to determine the control constants.
Inventors
- 👤 Masae Kanda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:24
CPC Classifications
G; G05; G05B; G05B11/00; G05B13/00; G05B13/02; G05B13/0205; G05B13/024
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
124 words
A control supporting system for automatically determining control constants, including proportional gain, integral time and derivative time, of a controller used for controlling a given system in accordance with characteristics of the given system and control characteristics demanded of the controller, the control supporting system comprising: automatization level determining means for determining the desired level of automatization of the controller in accordance with the characteristics of the given system and the control characteristics demanded of the controller; algorithm memory means for storing a plurality of algorithms to determine the control constants; algorithm selecting means for selecting an algorithm from among the plurality of algorithms in accordance with the determined automatization level; and algorithm execution means for executing the algorithm to determine the control constants.
Claim 2
Dependent Claim
124 words
A control supporting system for automatically determining control constants, including proportional gain, integral time and derivative time, of a controller used for controlling a given system in accordance with characteristics of the given system and control characteristics demanded of the controller, the control supporting system comprising: automatization level determining means for determining the desired level of automatization of the controller in accordance with the characteristics of the given system and the control characteristics demanded of the controller; algorithm memory means for storing a plurality of algorithms to determine the control constants; algorithm selecting means for selecting an algorithm from among the plurality of algorithms in accordance with the determined automatization level; and algorithm execution means for executing the algorithm to determine the control constants.
Claim 3
Dependent Claim
107 words
The control supporting means of claims 1, wherein the automatization level determining means includes degree of automaticity determining means for determining means for determining the degree of automaticity based on the change to be considered in the characteristics of the given system, degree of partial automaticity determining means for determining a degree of partial automaticity based on the degree of consideration of the characteristics of the given system and the control characteristics of the given system and the control characteristics demanded of the controller, and automaticity level determining means for determining the automatization level in accordance with the degree of automaticity and the degree of partial automaticity.
Claim 4
Independent Claim
106 words
A method for automatically determining control constants, including proportional gain, integral time and derivative time, of a controller used for controlling a given system in accordance with characteristics of the given system and control characteristics demanded of the controller, the method comprising the steps of: determining the desired level of automatization of the controller, in accordance with the characteristics of the given system and the control characteristics demanded of the controller; storing a plurality of algorithms to determine the control constants; selecting an algorithm from among the plurality of algorithms in accordance with the determined automatization level; and executing the algorithm to determine the control constants.
Claim 5
Independent Claim
106 words
A method for automatically determining control constants, including proportional gain, integral time and derivative time, of a controller used for controlling a given system in accordance with characteristics of the given system and control characteristics demanded of the controller, the method comprising the steps of: determining the desired level of automatization of the controller, in accordance with the characteristics of the given system and the control characteristics demanded of the controller; storing a plurality of algorithms to determine the control constants; selecting an algorithm from among the plurality of algorithms in accordance with the determined automatization level; and executing the algorithm to determine the control constants.
Claim 6
Dependent Claim
86 words
The method of claim 3, wherein the step of determining the automatization level includes determining a degree of automaticity based on the change to be considered in the characteristics of the given system, determining a degree of partial automaticity based on the degree of consideration of the characteristics of the given system and the control characteristics of the given system and the control characteristics demanded of the controller, and determining the automatization level in accordance with the degree of automaticity and the degree of partial automaticity.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-05-03 | 1996-11-02 | 1997-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-03 | 2000-11-02 | 2001-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-03 | 2004-11-02 | 2005-05-04 | $7700.00 | Window Closed / Lapsed |