VESTNIK of Samara University. Aerospace and Mechanical EngineeringVESTNIK of Samara University. Aerospace and Mechanical Engineering2542-04532541-7533Samara National Research University172510.18287/2541-7533-2011-0-3-1(27)-28-34UnknownThe combined fuel draining control system for liquid oxygen and liquid hydrogen upper stageIvanovV. P.<p>Doctor of Technical Sciences</p>snv@ipu.ruPartolaI. S.<p>Candidate of Technical Sciences</p>salut@khrunichev.comThe Russian Academy of Sciences Institute of Control Sciences named by V.A. TrapeznikovThe Khrunichev State Research and Production Space Centre Design Bureau “Salut”01092011103-1283401082014Copyright © 2015, VESTNIK of the Samara State Aerospace University2015<p>A totally new fuel draining control system for cryogenic upper stage is discussed at the article. The system function is tank fuel remains minimization. The task solution is provided by fuel components drain levels ratio changing. A using of information about fuel level in tanks from discrete sensors provides the parry infelicities of tank filling, fuel components consumption velocity measurement and the engine control devices. A mathematic simulation confirmed the system efficiency.</p>Fuel draining controlengine power plantmathematic simulationmeasurement canalУправление расходованием топливадвигательная установкаматематическое моделированиеизмерительный тракт