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Sensor fault detection and isolation for electro-mechanical actuators in a reusable launch vehicle TVC system

Fari, Stefano and Seelbinder, David and Theil, Stephan and Simplício, Pedro and Bennani, Samir (2023) Sensor fault detection and isolation for electro-mechanical actuators in a reusable launch vehicle TVC system. In: Aerospace Europe Conference 2023 - 10th EUCASS - 9th CEAS. Aerospace Europe Conference 2023 - 10th EUCASS - 9th CEAS, 2023-07-09 - 2023-07-15, Lausanne, Switzerland. doi: 10.13009/EUCASS2023-504.

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Abstract

This paper introduces a model-based Fault Detection and Isolation (FDI) approach for a Reusable Launch Vehicle (RLV) Thrust Vector Control (TVC) system operated by Electro-Mechanical Actuators (EMAs). The focus is on the sensors required for the EMA embedded control system to track the on-board computer control commands. The nullspace FDI method is considered and applied to detect and isolate additive faults affecting the mentioned sensors. A detailed formulation of the problem and the EMA-based TVC system modelling for FDI synthesis is provided, including the mechanical load exerted by the rocket nozzle. The FDI synthesis framework is introduced and the application of the nullspace-based strategy is described, including considerations about isolability of the faults. Vehicle-induced loads can potentially disrupt the fault detection process, therefore they are included in the problem formulation to achieve decoupling from the residual generator output and not incur into false alarms. The generator performance is then assessed in fault-free and faulty scenarios using a high-fidelity TVC physical model, and successively benchmarked at the example of an RLV mission scenario.

Item URL in elib:https://elib.dlr.de/196066/
Document Type:Conference or Workshop Item (Speech)
Title:Sensor fault detection and isolation for electro-mechanical actuators in a reusable launch vehicle TVC system
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Fari, StefanoUNSPECIFIEDhttps://orcid.org/0000-0001-5595-6905UNSPECIFIED
Seelbinder, DavidUNSPECIFIEDhttps://orcid.org/0000-0003-4080-3169UNSPECIFIED
Theil, StephanUNSPECIFIEDhttps://orcid.org/0000-0002-5346-8091138932266
Simplício, PedroUNSPECIFIEDhttps://orcid.org/0000-0002-7808-4502UNSPECIFIED
Bennani, SamirUNSPECIFIEDhttps://orcid.org/0000-0003-0282-9448UNSPECIFIED
Date:9 July 2023
Journal or Publication Title:Aerospace Europe Conference 2023 - 10th EUCASS - 9th CEAS
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI:10.13009/EUCASS2023-504
Status:Published
Keywords:Fault detection, Electro-mechanical actuator, sensor, TVC, reusable launch vehicles
Event Title:Aerospace Europe Conference 2023 - 10th EUCASS - 9th CEAS
Event Location:Lausanne, Switzerland
Event Type:international Conference
Event Start Date:9 July 2023
Event End Date:15 July 2023
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Navigation and Control Systems
Deposited By: Fari, Stefano
Deposited On:19 Jul 2023 10:17
Last Modified:24 Apr 2024 20:56

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