Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
2005-01-18
2005-01-18
Picard, Leo (Department: 2125)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C700S127000
Reexamination Certificate
active
06845282
ABSTRACT:
A method of controlling tension in a material handling process. An error signal of the process is determined. The velocity analog value of the material is determined and an instantaneous integral gain is then determined according to the velocity analog value. A proportional gain is determined. The output of a controller is then adjusted according to the error signal, the instantaneous integral gain, and the proportional gain.
REFERENCES:
patent: 3768286 (1973-10-01), Peterson
patent: 4151594 (1979-04-01), Stern
patent: 4378213 (1983-03-01), Severy
patent: 5223778 (1993-06-01), Svarovsky et al.
patent: 5269222 (1993-12-01), Johnson et al.
patent: 5455764 (1995-10-01), Meihofer
patent: 5730693 (1998-03-01), Krayenhagen
patent: 5894797 (1999-04-01), Brennan et al.
patent: 5937756 (1999-08-01), Kishine et al.
patent: 5964390 (1999-10-01), Borresen et al.
patent: 5992789 (1999-11-01), Lamothe
patent: 5996492 (1999-12-01), Jurkewitz et al.
patent: 6012669 (2000-01-01), Tharpe, Jr. et al.
patent: 6106177 (2000-08-01), Siegl et al.
patent: 6193184 (2001-02-01), Hansen
patent: 6314333 (2001-11-01), Rajala et al.
patent: 6317637 (2001-11-01), Limroth
patent: 6355139 (2002-03-01), Baggot et al.
patent: 6433499 (2002-08-01), Cote et al.
patent: 20030010455 (2003-01-01), Henry et al.
patent: 20030169010 (2003-09-01), Tomita
patent: 10-250888 (1998-09-01), None
Kihong Park, Hoseong Kim and Jeong Ho Hwang, Design of an Adaptive Tension/Velocity Controller for Winding Processes, ISIE 2001 IEEE Intern Symp On Industrial Electronics Proc., Pusan, Korea, pp. 67-72.
Karl N. Reid, Kee-Hyun Shin, and Ku-Chin Lin, Variable-Gain Control of Longitudinal Tension in a Web Transport System, ASME 1992, AMD-vol. 149, Web Handling, pp. 87-100.
Y. Hou, Z. Gao, F. Jiang and B. T. Boulter, Active Disturbance Rejection Control for Web Tension Regulation, 2001 IEEE Conference on Decision and Control, pp. 1-17.
Anne Angermann, Maik Aicher, and Dierk Schröder, Time-Optimal Tension Control for Processing Plants with Continuous Moving Webs, 2000 IEEE, Institute for Electrical Drive Systems, pp. 3505-3511.
Hakan Koç, Dominique Knittel, Michel De Mathelin, and Gabriel Abba, Modeling and Robust Control of Winding Systems for Elastic Webs, 2002 IEEE Transactions on Control Systems Technology, vol. 10, NO. 2, Mar. 2002, pp. 197-208.
Edouard Laroche, Hakan Koç, Dominique Knittel, Michel De Mathelin, Web Winding System Robustness Analysis via μ-Analysis, 2001 IEEE International Conf on Control Applications, pp. 948-953.
D. Knittel, E. Laroche, H. Koç, Tension Control for Winding Systems With Two Degrees of Freedon H∞ Controller, 2001 IEEE Industry Application Conf., pp. 576-582.
Hakan Koç, Diminique Knittel, Michel De Mathelin and Gabriel Abba, Robust Gain-Scheduled Control in Web Winding Systems, 2000 IEEE Conf on Decisin Ad Controls, pp. 4116-4119.
Siddharth P. Nagarkatti, Fumin Zhang, Christopher D. Rahn and Darren M. Dawson, Tension and Speed Regulation for Axially Moving Materials, Journal of Dynamic Systems, Measurement, and Control, 2000 ASME, Sep. 2000, vol. 122, p. 445-453.
Tetsuzo Sakamoto, Yasunobu Izumihara, Decentralized Control Strategies for Web Tension Control System, 1997 ISIE, Guimaráes, Portugal, p. 1086-1089.
Cabrera Zolla
Mattheis David K.
Patel Ken K.
Picard Leo
Weirich David M.
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