Correction of errors in autopilots

Details Correction of errors in autopilots Correction of errors in autopilots

1993-06-29

1995-04-11

Trans, Vincent N.

Boots, shoes, and leggings

244 76R, 244194, 318588, G05D 100

Patent

active

054064880

ABSTRACT:
A system (1) responds to inputs (2) in parallel with a state estimator (4). The controller (6) provides the inputs (2) in response to ordered state inputs (14) and state estimator inputs. An external disturbance vector (f) affects the system (1) so that the observed values of the state variables are not the same as the estimated values. The estimated and measured values are compared (8) to give an error signal (9). The error values are fed to an Ordered State Corrector (11) which computes the error that the order state variable would have in the steady and applies it in the opposite sense to increment the input ordered state (14). If more than one state variable is to be corrected, the correction is applied directly to the control inputs using Multi-State Correction, in which the steady state errors are used to find the control inputs which would cause the errors and then a correction is applied to the control inputs.

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