Boots – shoes – and leggings
Patent
1993-07-22
1995-04-11
Envall, Jr., Roy N.
Boots, shoes, and leggings
364158, 364162, G05B 1302
Patent
active
054064740
ABSTRACT:
Apparatus and method for adapting the control parameters of a self-tuning controller. The apparatus detects a closed-loop response to a naturally occurring, unmeasured disturbance and determines two characteristics, the attenuation and the period of the response. The attenuation and the period provide sufficient information to partially identify the characteristic equation of the closed-loop system. The apparatus constructs from the partially identified characteristic equation a process model that represents the general behavior of the process. The apparatus generates new control parameters more appropriate for the identified process model, and appropriately updates the controller.
REFERENCES:
patent: Re33267 (1990-07-01), Kraus
patent: 3798426 (1974-03-01), Bristol, II
patent: 4602326 (1986-07-01), Kraus
patent: 4855897 (1989-08-01), Shinskey
patent: 4864490 (1989-09-01), Nomoto et al.
patent: 4903192 (1990-02-01), Saito et al.
patent: 5029066 (1991-07-01), Hiroi
patent: 5043862 (1991-08-01), Takahashi et al.
patent: 5153807 (1992-10-01), Saito et al.
patent: 5166873 (1992-11-01), Takatsu et al.
Radke, F., Microprocessor-based Adaptive PID-Controllers, ISA Transactions 27:2 (1988), 43-50.
DaSilva, M., et al., A Rule Based Procedure for Selftuning PID Controllers, Proc. 27th IEEE Conf. on Decision and Control, vol. 313 (Dec. 1988), pp. 1947-1951.
Brown Thomas E.
Envall Jr. Roy N.
The Foxboro Company
LandOfFree
Self-tuning controller does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self-tuning controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-tuning controller will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1543159