# An Improved Fault Identification Method for Electromechanical Actuators

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## Abstract

**:**

## 1. Introduction

## 2. Materials and Methods

#### 2.1. Scope of the Work and Novelties Introduced

- 1.
- Faults vectors are generated, and the system is simulated using these values, obtaining a simulations dataset;
- 2.
- Relevant physical quantities are logged for each simulation (e.g., voltages, currents, motor angular position and speed);
- 3.
- In each simulation, for each phase, an estimation of the back-EMF coefficient is calculated;
- 4.
- Estimation error is minimized by obtaining the real values of phase resistance and back-EMF coefficient;
- 5.
- These values are used in a neural network to predict the health status of the system.

#### 2.2. Brief System Overview

#### 2.3. Dataset Used

## 3. Results

## 4. Discussion

## 5. Conclusions

## Author Contributions

## Funding

## Informed Consent Statement

## Data Availability Statement

## Conflicts of Interest

## Abbreviations

BEMF | Back Electro-Motive Force; |

BLDC | BrushLess Direct Current; |

EHA | Electrohydrostatic Actuator; |

EMA | Electro-Mechanical Actuator; |

FDI | Fault Detection and Identification; |

PHM | Prognostics and Health Management. |

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## Share and Cite

**MDPI and ACS Style**

Quattrocchi, G.; Berri, P.C.; Dalla Vedova, M.D.L.; Maggiore, P.
An Improved Fault Identification Method for Electromechanical Actuators. *Aerospace* **2022**, *9*, 341.
https://doi.org/10.3390/aerospace9070341

**AMA Style**

Quattrocchi G, Berri PC, Dalla Vedova MDL, Maggiore P.
An Improved Fault Identification Method for Electromechanical Actuators. *Aerospace*. 2022; 9(7):341.
https://doi.org/10.3390/aerospace9070341

**Chicago/Turabian Style**

Quattrocchi, Gaetano, Pier C. Berri, Matteo D. L. Dalla Vedova, and Paolo Maggiore.
2022. "An Improved Fault Identification Method for Electromechanical Actuators" *Aerospace* 9, no. 7: 341.
https://doi.org/10.3390/aerospace9070341