Results 41 to 50 of about 250,585 (299)

Ground reaction force sensor fault detection and recovery method based on virtual force sensor for walking biped robots [PDF]

open access: yes, 2013
This paper presents a novel method for ground force sensor faults detection and faulty signal reconstruction using Virtual force Sensor (VFS) for slow walking bipeds. The design structure of the VFS consists of two steps, the total ground reaction force (
Erbatur, Kemalettin, Hashlamon, Iyad
core   +1 more source

Fault Estimation Method for Nonlinear Systems With Perturbations Based on Augmented Fault Observer

open access: yesIEEE Access
This paper proposes a robust fault estimation method for nonlinear systems with both actuator and sensor faults. Specifically, a singular system is constructed by combining the state vector of the system with the fault vector of the sensor, and an ...
Yanxiu Sun, Ying Du, Yuping Zhang
doaj   +1 more source

Robust dynamic output feedback fault-tolerant control for Takagi-Sugeno fuzzy systems with interval time-varying delay via improved delay partitioning approach

open access: yesOpen Mathematics, 2016
This paper addresses the problem of robust fault-tolerant control design scheme for a class of Takagi-Sugeno fuzzy systems subject to interval time-varying delay and external disturbances.
Sun Chao, Wang Fuli, He Xiqin
doaj   +1 more source

Model Prediction-Based Approach to Fault Tolerant Control with Applications [PDF]

open access: yes, 2013
— Fault-tolerant control (FTC) is an integral component in industrial processes as it enables the system to continue robust operation under some conditions.
Khalid, Dr. Haris M.   +1 more
core   +1 more source

Comparison of observer approaches for actuator fault estimation in semi-active suspension systems

open access: yes, 2016
International audienceIn this paper, the actuator fault estimation problem of semi-active suspension systems is considered. For instance, an oil leakage in the damper could cause a reduction of the damping force.
Dugard, Luc   +2 more
core   +3 more sources

Towards Distributed and Adaptive Detection and Localisation of Network Faults [PDF]

open access: yes, 2010
We present a statistical probing-approach to distributed fault-detection in networked systems, based on autonomous configuration of algorithm parameters. Statistical modelling is used for detection and localisation of network faults.
Gillblad, Daniel, Steinert, Rebecca
core   +2 more sources

Second-Order Fault Tolerant Extended Kalman Filter for Discrete Time Nonlinear Systems [PDF]

open access: yes, 2019
As missing sensor data may severely degrade the overall system performance and stability, reliable state estimation is of great importance in modern data-intensive control, computing, and power systems applications.
Wang, Xin, Yaz, Edwin E.
core   +1 more source

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash   +4 more
wiley   +1 more source

Fault Severity Classification and Size Estimation for Ball Bearings Based on Vibration Mechanism

open access: yesIEEE Access, 2019
Severity identification and size estimation is a crucial part of the quantitative diagnosis for ball bearing faults. In this paper, novel fault severity classification rules and the size estimation model based on vibration mechanism for ball bearings are
Lingli Cui   +3 more
doaj   +1 more source

Multi-Fault Diagnosis of an Aero-Engine Control System Using Joint Sliding Mode Observers

open access: yesIEEE Access, 2020
An aero-engine is a complex aerodynamic thermal system, which can operate in extreme environments for long periods. It is crucial to diagnose any faults of the aero-engine control system accurately.
Linfeng Gou   +3 more
doaj   +1 more source

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