SELBSTADAPTIVVERFAHREN ZUR STEUERUNGSBETÄTIGUNG EINES PHYSIKALISCHEN SYSTEMS

• Main Authors: MARTIN, ALAIN, F-06700 S.-LAURENT-DU-VAR, FR, JAHIER, JEAN-PHILIPPE, F-06400 CANNES, FR, HOUDEMONT, JOEL, F-06210 MANDELIEU, FR
• Format: Patent
• Language: German
• Published: 05.05.1994
• Edition: 5
• Subjects: AEROPLANES; AIMING; AIRCRAFT; AVIATION; BLASTING; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; COSMONAUTICS; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; HEATING; HELICOPTERS; LIGHTING; MECHANICAL ENGINEERING; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PERFORMING OPERATIONS; PHYSICS; REGULATING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TRANSPORTING; VEHICLES OR EQUIPMENT THEREFOR; WEAPON SIGHTS; WEAPONS

In a physical system to be piloted in discrete mode, an outlet value $g(U) is related to a control variable $g(b) by the equation: $g(U) = A6?.$g(U) + K1?.$g(b) + $g(e), in which at least one of the parameters A6? and K1? is unknown. If Yk? is the value of $g(U) at time k and if $g(b)ck? is the control command produced by the guide calculator at that time, there exist three polynomials in q?-1 (delay operator), E, A', N with constant coefficients determined in advance, such that at any time, following preliminary filtration (index F) by an at least first-order polynomial in q?-1, the following approximation holds: (E'.Yk?)F? = (A'.Yk?)F?.A6? + (N'Bck?)F?.K1? + noises. At each step of piloting, the terms of this linear combination in A6? and K1? are calculated, at least this unknown paramater is estimated by means of a parametric variation model, and a control signal for one or more harmonic components of selected amplitudes and pulsations is added, for these instantaneous values of the parameters, by interpolation in a pre-established table which ensures that the tractions are maintained within predetermined ranges.