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Engine closed-loop control system and method

A closed-loop control and engine technology, which is applied in the direction of engine components, charging system, turbine/propellant fuel delivery system, etc., can solve the problems of low dynamic process adjustment accuracy and loss of dynamic characteristics, and achieve the goal of improving safety and dynamic characteristics Effect

Active Publication Date: 2021-06-01
AECC COMML AIRCRAFT ENGINE CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

This method is characterized by low dynamic process adjustment accuracy and direct loss of dynamic characteristics.

Method used

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  • Engine closed-loop control system and method
  • Engine closed-loop control system and method
  • Engine closed-loop control system and method

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Embodiment Construction

[0057] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application, and those skilled in the art can also apply the present application to other similar scenarios. Unless otherwise apparent from context or otherwise indicated, like reference numerals in the figures represent like structures or operations.

[0058] As indicated in this application and claims, the terms "a", "an", "an" and / or "the" do not refer to the singular and may include the plural unless the context clearly indicates an exception. Generally speaking, the terms "comprising" and "comprising" only suggest the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and ...

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Abstract

The invention provides an engine closed-loop control system. The engine closed-loop control system comprises a signal processor, a parameter limiting manager, a first coefficient scheduler, a sliding mode parameter limiting controller and a full-authority fuel controlled quantity selector, wherein the signal processor is configured to receive and process engine state parameters of an airborne sensor; the parameter limiting manager is configured to provide an engine operation parameter limiting quantity; the first coefficient scheduler is configured to provide sliding mode parameters; the sliding mode parameter limiting controller is configured to calculate sliding mode fuel quantity according to the engine state parameters, the engine operation parameter limiting quantity and the sliding mode parameters; and the full-authority fuel control quantity selector is configured to select a fuel control quantity by referring to the sliding mode fuel quantity and output a fuel control quantity command signal to an actuating mechanism closed-loop controller.

Description

technical field [0001] The invention mainly relates to the field of aero-engines, in particular to an engine closed-loop control system and method. Background technique [0002] After the engineering application of aero-engines has developed into the era of full-authority digital technology, the requirements for the safe operation and protection of engines continue to increase. For example, for the protection of key parameters during engine dynamic operation, major aero-engine manufacturers around the world have successively invested a large amount of research and development resources and gradually realized productization. [0003] There are mainly two ways to obtain the control law of key parameter protection in the existing engine dynamic operation process: one is to directly obtain the open-loop fuel control law to ensure that the parameters do not exceed the limit. The characteristic of this method is that the adjustment precision of the dynamic process is low, and it ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C9/28
CPCF02C9/28
Inventor 张园锁吕晓武李运华杨梅菊
Owner AECC COMML AIRCRAFT ENGINE CO LTD