Time delay controlled processes

Details Time delay controlled processes Time delay controlled processes

1990-06-29

1992-09-01

Smith, Jerry

Boots, shoes, and leggings

364150, 395 97, G05B 1302, G06F 1546

Patent

active

051445492

ABSTRACT:
A time delay control system in which estimated unknown dynamics of a controlled process are caluclated using calculations representative of convolutions of a state transition matrix with past data. A user or high level controller provides desired dynamics for a process. Periodic measurements of the processor taken to determine an error vector between the desired dynamics and the actual state of the process. The desired dynamics are used to determine the desired effects based on the present measured value of the state variables. The desired effects and the estimated effects of unknown dynamics are combined and multiplied by a pseudo inverse of a control matrix to obtain a control value. An error vector is multiplied by a feedback gain matrix and added to the control value to produce signal inputs to the process.

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Youcef-Toumi, Kamal et al. "A Time Delay Controller for Systems with Unknown Dynamics", Journal of Dynamic Systems, Measurement, and Control, Mar. 1990 vol. 112, pp. 133-142; presented at the American Control Conference, 1987, Minneapolis, Minn.

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