Avionic Main Fuel Pump Simulation and Fault-Diagnosis Benchmark

arXiv cs.LG / 4/28/2026

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Key Points

  • The paper addresses the lack of labeled data for anomaly detection and fault diagnosis in cyber-physical systems like aircraft by proposing a data-generation approach rather than relying on real operational logs.
  • It introduces a high-fidelity, physics-informed co-simulation of an aircraft main-fuel-pump system using MATLAB/Simulink and Simscape Fluids, aiming to mimic realistic behavior.
  • The authors provide generated time-series datasets that include health status and fault-mode annotations to support training and evaluation.
  • They demonstrate benchmark feasibility by using an unsupervised RNN-VAE model for anomaly detection and a SOM-VAE model to discretize operating modes and separate healthy vs. faulty conditions.

Abstract

In many cyber-physical systems, especially in critical applications such as aeroplanes, data to train anomaly detection and diagnosis algorithms is lacking due to data protection issues and partial observability. To combat this inherent lack of data, we introduce a high-fidelity, physics-informed co-simulation of a common aircraft main-fuel-pump system modelled in \textsc{MATLAB/Simulink Simscape Fluids}. We also describe its generated time-series data with health and fault mode annotations. To show feasibility of our benchmark, we apply an unsupervised Recurrent Variational Autoencoder (RNN-VAE) for anomaly detection and a SOM-VAE for operating mode discretization, trained to separate healthy and faulty conditions.