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Partially redundant electronic control system

An electronic control system, control system technology, applied in charging system, fuel control of turbine/propulsion unit, engine control, etc., can solve problems such as high cost, common faults, complex development of dual-channel FADEC, etc.

Active Publication Date: 2018-09-28
SAFRAN POWER UNITS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, dual-channel FADECs are complex and costly to develop compared to single-channel FADECs
In addition, dual-channel FADECs still have a risk of common failures, which is related to the fact that both channels are identical in terms of structure and fabrication

Method used

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  • Partially redundant electronic control system
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  • Partially redundant electronic control system

Examples

Experimental program
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Embodiment Construction

[0058] figure 2 It is a schematic diagram of the asymmetric electronic control system 100 of the gas turbine 50. The detailed description will be explained by the aircraft propelled by the gas turbine 50.

[0059] Similarly, this detailed description applies to APU (Auxiliary Power Unit), or also to any gas turbine 50 controlled by a full authority system (helicopter, drone, missile, etc.).

[0060] The asymmetric electronic control system 100 receives different types of data 60 at the input, and controls or regulates different types of outputs 70 by means of these data. More generally, these are "functions" used to specify output data and input data related to a specific function of a gas turbine or aircraft. Regarding the gas turbine, a functional group is defined, and for this functional group, the control unit 100 has full authority as a trouble-free operation.

[0061] The input data 60 may be logical information 62 about ignition, start, stop, shutdown, etc. or measurement r...

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PUM

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Abstract

The invention relates to an assymetrical electronic control system (100) for a gas turbine (50), which is designed to control a set of functions associated with logic input data (60) or data from sensors and associated with output data (70), in particular for an actuator, said system (100) commprising: a primary electronic control unit (120) configured to process the entire set of functions; a secondary electronic control unit (140), partially redundant with the primary unit (120) and configured to process only a strict subset of sufficient functions to operate or start the gas turbine in an acceptable degraded mode when the primary unit (120) is faulty; and a redundant or main chain selection and switching module (160) for selecting one or other of the primary and secondary units (120, 140) in order to control the gas turbine (50) according to the operating state of the primary unit (120).

Description

Technical field [0001] The present invention relates to the field of management of gas turbines, especially for propulsion, such as helicopters, aircraft, missiles or drone engines, or also for power generation, such as auxiliary power units (APU). [0002] More specifically, the present invention relates to a full authority electronic adjustment system for gas turbines. [0003] These systems are named "Full Authority Digital Engine Control" (FADEC) and are used, for example, to control and adjust gas turbines based on data from sensors or commands. [0004] More generally, these adjustment systems belong to the field of electronic control units of gas turbines commonly referred to as "Electronic Engine Control Units (EECU)". Background technique [0005] FADEC must comply with operational reliability restrictions. This is, for example, "Mean TimeBefore Failure" (MTBF) to ensure that there are no operating accidents, or it can be used for "Extended-range Twin-engine Operation Perfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C9/00
CPCF02C9/00F05D2270/46F01D21/003F01D21/12F01D21/14F02C7/06F02C7/264F02C9/28F05D2220/323F05D2220/329F05D2220/50F05D2270/54
Inventor 杰罗姆·普里埃文森特·吉约曼
Owner SAFRAN POWER UNITS
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