Patent EP0328678A1 successfully refreshed from Google Patents.
EP0328678A1
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Non-interfered control method and apparatus
Assignee: Hitachi Ltd
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Filing: 1988-08-11
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Granted: —
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Expires: 2008-08-11
Abstract
Abstract At least one partial control system has two or more operation quantities or control quantities. Compensation elements are added to the operation quantity of one partial control system to offset the efects of other partial control systems upon the one system in order to control the object based upon the compensated control quantities.
Inventors
- 👤 Yasunori Katayama
- 👤 Yasuo Morooka
- 👤 Taiko Takano
- 👤 Harumi Maruyama
- 👤 Itsuo Shimizu
- 👤 Satoshi Hattori
- 👤 Yutaka Saito
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 15:25
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/32; B; B21; B21B; B21B37/00; B21B37/16; B65; B65H; B65H2557/00; B65H2557/20; B65H2557/264; B65H2557/2644
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
112 words
A non-interference control method characterized in that an object to be controlled, which is controlled by a plurality of operation quantities and at least one control quantity, is divided into a plurality of partial control systems so that each of partial control systems has at least one operation quantity and that at least one partial control system has more than 2 operation or control quantities and that to the operation quantity in one partial control system is added a compensating element, which annuls influences exerted by other partial control systems on said one partial control system, said object to be controlled being controlled on the basis of the relevant compensated operation quantity.
Claim 2
Dependent Claim
112 words
A non-interference control method characterized in that an object to be controlled, which is controlled by a plurality of operation quantities and at least one control quantity, is divided into a plurality of partial control systems so that each of partial control systems has at least one operation quantity and that at least one partial control system has more than 2 operation or control quantities and that to the operation quantity in one partial control system is added a compensating element, which annuls influences exerted by other partial control systems on said one partial control system, said object to be controlled being controlled on the basis of the relevant compensated operation quantity.
Claim 3
Dependent Claim
118 words
A non-interference control method characterized in that an object to be controlled, which is controlled by a plurality of operation quantities and at least one control quantity, is divided into a plurality of partial control systems so that each of partial control systems has at least one operation quantity and that to the operation quantity in one partial control system is added a compensating element, which annuls influences of variations exerted by the variations on said operation quantity in said one partial control system, when control quantities included in the other partial control systems vary, said one partial control system being controlled independently of the other partial control systems on the basis of the relevant compensated operation quantity.
Claim 4
Dependent Claim
118 words
A non-interference control method characterized in that an object to be controlled, which is controlled by a plurality of operation quantities and at least one control quantity, is divided into a plurality of partial control systems so that each of partial control systems has at least one operation quantity and that to the operation quantity in one partial control system is added a compensating element, which annuls influences of variations exerted by the variations on said operation quantity in said one partial control system, when control quantities included in the other partial control systems vary, said one partial control system being controlled independently of the other partial control systems on the basis of the relevant compensated operation quantity.
Claim 5
Dependent Claim
63 words
A non-interference control method according to Claim 1 or 2, characterized in that said partial control systems are so divided that when one of said control quantities is varied, variations of the control quantities included in the other partial control systems are smaller than variations of the other control quantities included in the partial control system, to which the relevant control quantity belongs.
Claim 6
Dependent Claim
45 words
A non-interference control method according to Claim 1 or 2, characterized in that said object to be controlled is a tandem rolling mill having a plurality of rolling stands and that said partial control systems are the rolling stands of said tandem rolling mill, respectively.
Claim 7
Dependent Claim
107 words
A non-interference control device characterized in that an object to be controlled, which is controlled by a plurality of operation quantities and at least one control quantity, is divided into a plurality of partial control systems so that each of partial control systems has at least one operation quantity and that it comprises: control means for calculating and determining the operation quantities for said object to be controlled separately for every partial control system; and non-interference control means, which inputs calculation result for said partial control systems and calculates compensating elements for the operation quantities to output the compensated operation quantities to said object to be controlled.
Claim 8
Dependent Claim
107 words
A non-interference control device characterized in that an object to be controlled, which is controlled by a plurality of operation quantities and at least one control quantity, is divided into a plurality of partial control systems so that each of partial control systems has at least one operation quantity and that it comprises: control means for calculating and determining the operation quantities for said object to be controlled separately for every partial control system; and non-interference control means, which inputs calculation result for said partial control systems and calculates compensating elements for the operation quantities to output the compensated operation quantities to said object to be controlled.
Claim 9
Dependent Claim
61 words
A non-interference control device according to Claim 5, characterized in that said partial control systems are so divided that when one of said control quantities is varied, variations of the control quantities included in the other partial control systems are smaller than variations of the other control quantities included in the partial control system, to which the relevant control quantity belongs.
Claim 10
Dependent Claim
33 words
A non-interference control device according to Claim 5, characterized in that said non-interference control device includes a feed back control element for control quantities and a feed forward control element for operation quantities.
Claim 11
Dependent Claim
48 words
A non-interference control device according to either one of Claims 5 to 7, characterized in that said object to be controlled is a tandem rolling mill having a plurality of rolling stands and that said control means works separately for every rolling stands of said tandem rolling mill.
Claim 12
Dependent Claim
130 words
A control device controlling an object to be controlled by means of control means having at least 2 kinds of functions, characterized in that it comprises: presuming means for presuming state variation quantities of said object to be controlled, which are deviated by operation quantities for said object to be controlled obtained by one of said control means; means for obtaining deviations of state variation presumption quantities obtained by inputting said operation quantities in said presuming means from state quantities of said object to be controlled by inputting said operation quantities in said object to be controlled; and means for inputting said deviations in another control means; wherein said another control means calculates and determines the operation quantities for said object to be controlled on the basis of said deviations.
Claim 13
Dependent Claim
130 words
A control device controlling an object to be controlled by means of control means having at least 2 kinds of functions, characterized in that it comprises: presuming means for presuming state variation quantities of said object to be controlled, which are deviated by operation quantities for said object to be controlled obtained by one of said control means; means for obtaining deviations of state variation presumption quantities obtained by inputting said operation quantities in said presuming means from state quantities of said object to be controlled by inputting said operation quantities in said object to be controlled; and means for inputting said deviations in another control means; wherein said another control means calculates and determines the operation quantities for said object to be controlled on the basis of said deviations.
Claim 14
Dependent Claim
62 words
A non-interference control device according to Claim 9, characterized in that said object to be controlled is controlled by a plurality of operation quantities and at least one control quantity, that said one of the control means is a non-interference control system, which eliminates interference amount said operation or control quantities, and that said another control system is an optimum control system.
Claim 15
Dependent Claim
54 words
A non-interference control method according to Claim 9 or 10, characterized in that said object to be controlled is a tandem rolling mill having a plurality of rolling stands and that said one of the control means controls the rolling stands of said tandem rolling mill so that interference between different stands is eliminated.
Claim 16
Dependent Claim
108 words
A control device controlling an object to be controlled by means of control means, characterized in that it comprises: presuming means for presuming state variation quantities of said object to be controlled, which are changed by operation quantities for said object to be controlled produced by each of said control means; means for obtaining control deviations of state variation presumption quantities obtained by subtracting said state variation quantities presumed by said presuming means from state quantities of said object to be controlled; and means for adding said presumed state variation quantities and said control deviations to each other and inputting the sum thus obtained in said control means.
Claim 17
Dependent Claim
108 words
A control device controlling an object to be controlled by means of control means, characterized in that it comprises: presuming means for presuming state variation quantities of said object to be controlled, which are changed by operation quantities for said object to be controlled produced by each of said control means; means for obtaining control deviations of state variation presumption quantities obtained by subtracting said state variation quantities presumed by said presuming means from state quantities of said object to be controlled; and means for adding said presumed state variation quantities and said control deviations to each other and inputting the sum thus obtained in said control means.
Claim 18
Dependent Claim
83 words
A non-interference control method according to Claim 12, characterized in that said presuming means comprises first presuming means for obtaining said control deviations of said state variation quantities of said object to be controlled, which are changed by an operation quantity obtained by summing operation quantities coming from said plurality of control means and second presuming means for presuming respective state variation quantities of said object to be controlled, which are changed by the respective operation quantities produced by the respective control means.
References Cited (Backward Citations)
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