Sensor Fault and Unknown Input Estimation Based on Proportional Integral Observer Applied to LPV Descriptor Systems.

Sensor fault and unknown input estimation based on proportional integral observer applied to LPV descriptor systems

Design of proportional-integral observer for unknown input descriptor systems

This note presents simple methods to design fulland reducedorder proportional integral observer for unknown inputs (UI) descriptor systems. Sufficient conditions for the existence of the observer are given and proven. The observer is solvable by any pole placement algorithm, it achieves a posteriori robustness state and UI estimation versus to time varying parameters and bounded nonlinear UI. A...

An Unknown Input Observer for Fault Detection Based on Sliding Mode Observer in Electrical Steering Assist Systems

Steering assist system controls the force transfer behavior of the steering system and improves the steering probability of the vehicle. Moreover, it is an interface between the diver and vehicle. Fault detection in electrical assisted steering systems is a challenging problem due to frequently use of these systems. This paper addresses the fault detection and reconstruction in automotive elect...

Generalized set-theoretic unknown input observer for LPV systems with application to state estimation and robust fault detection

1Center of Intelligent Control and Telescience, Graduate School at Shenzhen, Tsinghua University, Shenzhen, China 2Institut de Robòtica i Informàtica Industrial (CSIC-UPC), Technical University of Catalonia (UPC), Barcelona, Spain 3Tsinghua National Laboratory for Information Science and Technology, Tsinghua University, Beijing, China 4Intelligent Computing Lab, Graduate School at Shenzhen, Tsi...

Chaos Synchronization Based on Unknown Input Proportional Multiple-Integral Fuzzy Observer

and Applied Analysis 3 2. Unknown Input TS Fuzzy Model Structure The TS fuzzy model subject to unknown input is considered as follow: