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US 4,052,598 AGranted
Control system with fast response
AssigneeHycom Incorporated
InventorsRaymond J. Turner, Andrew M. Kameya, Naif D. Salman
Life of this patent
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Abstract
A control system comprising a gain control circuit for adjusting the gain of an input signal to provide a gain controlled signal and an integrator for integrating the gain controlled signal to provide an output signal. A first circuit responds to a particular condition for changing the gain of the gain control circuit and a second circuit responds to that same condition for changing the output signal independently of the gain control signal to bring about a more rapid change in the output signal than could be brought about solely by changing the gain controlled signal.
Claims18
A control system comprising:
- first signal processing means for processing an input signal in accordance with a first program to provide a first signal, said first program having at least one variable;
- second signal processing means for processing the first signal in accordance with a second program to provide an output signal which is related to the first signal and the second program whereby a change in said variable of said first signal will provide a predictable change in the output signal;
- means responsive to a particular condition for changing said variable of said first program;
- means responsive to said particular condition for changing the output signal in a way to bring about at least a portion of said predictable change in the output signal more rapidly than could be brought about solely by said first signal;
- and
- said means for changing said variable including threshold detector means responsive to a predetermined characteristic of the output signal being outside of a particular range of values for providing a correction signal to the first signal processing means and means responsive to the correction signal for changing said variable of said first program.
3 more elements
A control system comprising:
- first signal processing means for processing an input signal in accordance with a first program provide a first signal, said first program having at least one variable;
- second signal processing means for processing the first signal in accordance with a second program to provide an output signal which is related to the first signal and the second program whereby a change in said variable of said first signal will provide a predictable change in the output signal;
- means responsive to a particular condition for changing said variable of said first program;
- means responsive to said particular condition for changing the output signal in a way to bring about at least a portion of said predictable change in the output signal more rapidly than could be brought about solely by said first signal;
- and
- said means for changing the output signal including threshold detector means responsive to a predetermined characteristic of the output signal being outside of a particular range of values for providing a correction signal to the second signal processing means and means responsive to the correction signal for bringing about at least a portion of said predictable change in the output signal.
3 more elements
A control system comprising:
- first signal processing means for processing an input signal in accordance with a first program to provide a first signal, said first program having at least one variable;
- second signal processing means for processing the first signal in accordance with a second program to provide an output signal which is related to the first signal and the second program whereby a change in said variable of said first signal will provide a predictable change in the output signal;
- means responsive to a particular condition for changing said variable of said first program;
- means responsive to said particular condition for changing the output signal in a way to bring about at least a portion of said predictable change in the output signal more rapidly than could be brought about solely by said first signal;
- and
- said second signal processing means including means for adding the value of the first signal with a value related to at least one preceding value of the the output signal, said means for changing the output signal being responsive to said particular condition for changing said second mentioned value to thereby change the output signal.
3 more elements
A control system comprising:
- first signal processing means for processing an input signal in accordance with a first program to provide a first signal, said first program having at least one variable;
- second signal processing means for processing the first signal in accordance with a second program to provide an output signal which is related to the first signal and the second program whereby a change in said varible of said first signal will provide a predictable change in the output signal, said second program having at least one variable;
- means responsive to the output signal for changing said variable of said first program;
- and
- means responsive to the output signal for changing the variable of the second program to change the output signal in a way to bring about at least a portion of said predictable change in the output signal more rapidly than could be brought about solely by changing the variable of the first program.
2 more elements
A control system comprising:
- gain control means for adjusting the gain of an input signal to provide a gain controlled signal, said gain control means having an adjustable gain;
- second signal processing means for processing the gain controlled signal in accordance with a program to provide an output signal which is related to the gain controlled signal and the program whereby a change in the gain of the gain control means will provide a predictable change in the output signal;
- means responsive to the output signal for providing a first feedback signal to the gain control means;
- said gain control means including means responsive to the first feedback signal for changing the gain of the gain control means;
- means responsive to the output signal for providing a second feedback signal to the second signal processing means;
- and
- said second signal processing means includes means responsive to said second feedback signal to bring about at least a portion of said predictable change in the output signal more rapidly than could be brought about solely by changing the gain of the gain control means.
4 more elements
A method of rapidly chaging an output signal in an automatic control system comprising:
- processing an input signal in accordance with a first program to provide a first signal with said program having at least one variable;
- processing the first signal in accordance with a second program having at least one variable to provide an output signal which is related to the first signal and the second program whereby a change in the variable of said first signal will provide a predictable change in the output signal;
- changing said variable of said first program in response to the output signal;
- and
- changing the variable of the second program in response to the output signal in a way to bring about at least a portion of said predictable change in the output signal more rapidly than could be brought about solely by changing said variable of the first program.
2 more elements
Dependencies are inferred from the claim text.