초록 ▼

A control system for controlling displacement of the aerodynamic control-surfaces of an aircraft includes a first signal processor that is supplied with input signals from the pilot\s control column and also with predominantly lower-frequency components of feedback signals derived in accordance with

A control system for controlling displacement of the aerodynamic control-surfaces of an aircraft includes a first signal processor that is supplied with input signals from the pilot\s control column and also with predominantly lower-frequency components of feedback signals derived in accordance with the actual position of the control surfaces. The first signal processor derives an intermediate signal from the input and feedback signal components by digital processing and supplies this intermediate signal to a second signal processor which also receives the predominantly higher-frequency components of the feedback signal. The second signal processor derives an output signal from the intermediate and feedback signal components by analogue processing and supplies this to an actuator for controlling displacement of the control-surfaces. The second signal processor may also receive additional feedback signals directly from the actuator. The system may be used in quadruplex, including four first and second processors to produce four output signals in response to four input signals, wherein two monitor circuits both receive the four intermediate signals and operate to reject any of those intermediate signals which differ from the other intermediate signals by more than a predetermined amount. The monitor circuits amalgamate those intermediate signals not rejected and supply output signals representative of those intermediate signals to additional second signal processors which in turn produce output signals to additional actuators.

대표청구항 ▼

A control system for deriving an output signal for control of an operative function, the system comprising: first signal processing means; means for supplying an input signal to said first signal processing means; means for deriving a feedback signal indicative of the said operative function; means

A control system for deriving an output signal for control of an operative function, the system comprising: first signal processing means; means for supplying an input signal to said first signal processing means; means for deriving a feedback signal indicative of the said operative function; means for supplying at least the lower-frequency components of said feedback signal to said first signal processing means, the said first signal processing means deriving an intermediate signal from said input signal and said components of the feedback signal by digital processing; second signal processing means; means for supplying said intermediate signal to said second signal processing means; and means for supplying predominantly higher-frequency components of said feedback signal to said second signal processing means, the said second signal processing means deriving said output signal by processing said intermediate signal and said predominantly higher-frequency components of said feedback signal.