SU726360A1 - Gas-turbine engine control system - Google Patents

Description

(54) GAS TURBINE ENGINE MANAGEMENT SYSTEM

The invention relates to the automatic control of objects and, in particular, to automatic control systems of a gas turbine engine.

A gas turbine engine control system is known, comprising sensors, an automatic control and monitoring unit, AND circuits, a program block, a recorder and OR-connected in series circuits, switching elements and actuators.

The disadvantages of the system are as follows. Lack of control of the automatic control unit for compliance with technical features in the course of its operation. On exiting any of the channels of the automatic control unit, false commands may occur that lead to emergency situations. Disconnection of an outdated channel of the automatic control unit is performed by one manually.

The aim of the invention is to exclude the issuance of a false command in case of failure of any channels of the automatic control unit.

and control, providing automatic control of this unit.

The goal is achieved by the addition of a stimulus block, a switch, a storage unit and a failure signal shaping unit to the system; moreover, the inputs of the program block are connected to the inputs of the switch, the AND schemes, the storage block and the first inputs of the failure signal generation unit, to other inputs the inputs of the automatic control and monitoring unit are connected to the outputs of the inputs of the AND and registrar circuits, and the sensors and the block of stimuli signals through the switch, the automatic control unit and Trol connected to the inputs of the circuits And, the outputs of which are connected With the circuits OR, either directly or through a memorized unit.

The drawing shows the block diagram of the device.

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Claims (3)

The system contains sensors 1, block 2 of automatic control and monitoring, circuits AND 3, program block 4, recorder 5, circuits OR 6, switching and operating elements of 5BSUJtiXSi% i S i E S. :: - 7 ii: di5 r -Mij: J - -.,., - 4 -.-.-.,, / VV - v ---.--, t- ..; ..- vi -: - .--- --- .-. : p, 1 ™. . .., - - ... J. cops 7 and 8, block 9 of stimulating signals j switch 10, storage unit 1 and block 12 of generating failure signals .-- The system works as follows. Signals that characterize the gas typ6HHHoro motor, from sensors Rgkov 1 through commutator 10 come to block 2 of astolviaTH cheststrayante and kentrol. Unit 1 processes the input signals according to specified aji rhythms and is a channel processing system, each channel having its own input and output --...., ", ...;., (-", ",., ..:. - ".-.".-... When the emergency operation mode of the Engine is reached from the output of block 2 and through cxejMbi, AND 3 and the schemes OR 6 and switching elements 7, the command is issued to the core 8 elements that are the various g engine components (power plant) and on-board equipment, the aircraft itself. The number of AND circuits and OR circuits and switching elements 7 corresponds to the number of outlets One unit. 2 ...., .. "... ,, ..,," ..: .., ..,, According to the program laid down in block 4, at certain intervals, the technical condition of the unit is checked 2 or its operation ,;.; ,, /. ,,,,., ". The technical condition of the block 2 is checked in the following sequence. On a signal from the program block 4 to the storage block 11, which represents CO: a set of trigger points , the number of triggers corresponds to the number of AND 3 circuits, and all the commands issued by block 2 are recorded at the time of the start of the check nickle. C, the output of block 11 through the appropriate circuits OR 6 commands are sent to the corresponding switch elements 7, which are used; The element 8 is executed. Following the signal coming from block 4, on. Circuits AND 3 are prohibited from issuing block 2 commands through them. LatK.ia tafit: fi iKvf sitiK Since the commands issued by block 2 by the time they started checking it lexjnwecKoro .l: iS..J ./,.-;., l. ..-, .-, ...; i: I -I SSri ri -vA: fc: -f- ft-. the states recorded in the storage unit. And then the execution elements 8 that were included before the start of the check of the unit 2 remain in the same position and in the period it) nro SherKyG-- - - - ------ v ----- - Further, iSb to the command of block 4, switch 1b switches the inputs of block 2 from sensors 1 to block 9 of stimulating signals. Block 9 1rds is a nabb GShShyShrSh (Sh 1ShSh.. --..- ---., .., -v. ..- -v -; ...-- .., .-.. Of sensors 1 ,; which give the signals of the control values of the parameters. With the help of the control of the Hb1x signals, the technical condition if; - .-, -, ..-, faax: a-: xfK ;; isfi - fs-si: is:;: Kiss S ilt unit 2, on some outputs of which must be present, and on others - OTcytcTBpigaT commands (P1rit1dkey 1sh6m block 9) in the Zh-V -st Cii, ...-- .. depending on the requirements of the prerequisites for each of the channels .. Signals from the output of block 2 in the form of certain logical obstacles arrive at block 12 of the form | ov11y cift-Nalov. IF the software If a false issue of the corresponding command% and OSH6T-Juet is issued, while it should be issued, then with the arrival of the next command from block 4 to block 12 it fixes the output of the corresponding channel from it, i.e. 2. This signal of failure arrives at the appropriate AND circuit 3 of the failed channel and prohibits the issuance of commands via this channel. In addition, the SGNGTGS is also registered (1p 5. After a certain pattern has elapsed, after blocking the block 12, the signal from the switch 10 is removed and the inputs of block 2 are switched from block 9 to the sensors 1. With an interval determined by the speed of block 2, after switching inputs to sensors 1, the prohibition of fcWifiart is removed 3. The next command of block 4, after a predetermined time interval after removing the ban from the AND 3 circuits, triggers the memory unit 11 and converges from their respective outputs through the OR 6 circuits to the sensing elements 8 signals. Commands from the output of block 2 through the scheme 11z, OR 6 and the subkey1bn1Yo element1 7 BbipaiotcF to use; elements 8. SCIENCY: And after a long time, as determined by block 4 of the graph, the check of the environmental state of block 2, is repeated, all% of the average; aT bHoSf yGyShr8yi fiieftifitiHie; So turn on ShsSH; tSha uyryleni gas turbine engine obepecheyva 4t automatic control unit 2 without distortion in higher output signals in the period; n ezhnost. all system. Claims A gas turbine engine control system comprising sensors, an automatic control and monitoring unit, AND circuits, a program block, a recorder, and sequentially connected OR circuits that switch to an actuator in case of a failure. The channel of the automatic control unit and the control, as well as the provision of a81g & 1 of the tactical unit of this unit, the KipfNtytafSp j fanoMHblock block and the signal generating unit of the unit eat, program block outputs | connected to the inputs of the switch, the And schemes, the storage unit and the first input of the failure signaling unit, to the other inputs of which the outputs of the automatic control and monitoring unit are connected, and the outputs to the inputs of the And and registrar circuits, and the switch, the automatic control unit and the control unit are connected to the inputs of the AND circuits, the outputs of which are connected to the OR circuits both directly and through a memory {block unit).  Sources of information taken into account when examining 1. USSR author's certificate N 474833, cl. G 08 C 15/02, 1972.