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Related Experiment Video

Updated: Jul 16, 2026

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Published on: October 28, 2022

Fault-Tolerant Control for Active Suspension Systems Based on Fault Estimation and Compensation.

Yuanchun Ding¹, Guanglong Li², Falu Weng²

¹Ganzhou Key Laboratory of Industrial Safety and Emergency Technology, Jiangxi Provincial Key Laboratory of Safety and Efficient Mining of Rare Metal Resource, Jiangxi University of Science and Technology, Ganzhou 341000, China.

Sensors (Basel, Switzerland)

|July 15, 2026

Summary

This study presents a fault-tolerant control strategy for active suspension systems, enhancing stability and performance even with actuator faults. The new controller significantly reduces body acceleration and suspension travel, improving vehicle ride quality.

Keywords:

active suspension adaptive observer fault diagnosis fault-tolerant control

Related Experiment Videos

Last Updated: Jul 16, 2026

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Published on: October 28, 2022

Area of Science:

Automotive Engineering
Control Systems Theory
Mechanical Vibrations

Background:

Active suspension systems are crucial for vehicle dynamics and ride comfort.
Actuator faults can compromise the performance and safety of active suspension systems.
Developing robust control strategies for fault-tolerant active suspensions is an ongoing challenge.

Purpose of the Study:

To design a fault-tolerant controller for active suspension systems experiencing actuator faults.
To ensure closed-loop system stability and achieve prescribed disturbance attenuation performance.
To develop practical fault estimation and compensation methods for real-time application.

Main Methods:

A quarter-car active suspension model incorporating actuator faults was developed.
Linear quadratic optimal control and linear matrix inequality (LMI) theory were employed to design the controller.
Fault estimation and compensation techniques based on matrix operations were implemented for online state and fault force estimation.

Main Results:

The proposed fault-tolerant controller ensures system stability and disturbance attenuation.
Online estimation of critical state variables and actuator fault forces was achieved with high precision.
Simulations showed reductions of 14.59% in body vertical acceleration and 16.98% in suspension dynamic travel compared to non-fault-tolerant controllers.

Conclusions:

The developed fault-tolerant control strategy effectively addresses actuator faults in active suspension systems.
The method provides accurate state and fault force estimation, demonstrating practical applicability.
The controller significantly improves ride comfort and suspension performance under fault conditions.