SPACECRAFT TURN CONTROL SYSTEM Russian patent published in 2003 - IPC

FIELD: automatic control systems of non-stationary objects, mainly space objects. SUBSTANCE: proposed system is used for turn of spacecraft to required attitude. System includes selector switch and the following units: module determination unit, square root calculating unit, minimum angular velocity signal selection unit and storage unit. Besides that, system includes minimum acceleration and permissible angular velocity setters, functional amplifier and non-linear element with limitation. Functional amplifier includes fourth amplifier, second multiplier and first and second division units. Control system optimizes transient processes in speed of response under conditions of high degree of instability of efficiency of control engines and parameters of spacecraft proper which are stipulated by failures of these engines, change in mass of spacecraft due to burn-out of fuel in main cruise engine. EFFECT: reduced consumption of fuel at optimal speed of response of spacecraft turn. 2 cl, 6 dwg