초록 ▼

A closed-loop control system having two feedback paths 106, 108. A first feedback path contains an expected system output value generated by a system model 102. The second feedback path provides insensitivity to noise by heavily filtering the error between the model output 104 and the actual measure

A closed-loop control system having two feedback paths 106, 108. A first feedback path contains an expected system output value generated by a system model 102. The second feedback path provides insensitivity to noise by heavily filtering the error between the model output 104 and the actual measured system output 74. Because of the delay associated with the filtering operation, the dual feedback paths result in an initial fast (but approximated) system response, followed by a delayed correction to that response.

대표청구항 ▼

A method of providing feedback in a closed-loop control system which controls a first system, comprising the steps of: (a) predicting an expected output of the first system using a model of the first system; (b) feeding back the expected output as a first feedback input to the control system; (c) co

A method of providing feedback in a closed-loop control system which controls a first system, comprising the steps of: (a) predicting an expected output of the first system using a model of the first system; (b) feeding back the expected output as a first feedback input to the control system; (c) computing an error between an actual output of the first system and the expected output; (d) filtering the error in order to attenuate unwanted frequency components; (e) creating a second feedback input based on the filtered error; (f) feeding back the second feedback input to the control system, wherein there is a delay between feedback of the first and second feedback inputs; (g) producing a control system output based upon the first and second feedback inputs; and (h) applying the control system output to the first system in order to control the first system.