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Keywords: fault detection and isolation
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Journal Articles

Fault Diagnosis of Exhaust Gas Recirculation and Variable Geometry Turbocharger Systems in a Passenger Car Diesel Engine Based on a Sliding Mode Observer for Air System States Estimation

Hyunjun Lee, Joonhee Lee, Myoungho Sunwoo
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. May 2014, 136(3): 031016.
Paper No: DS-13-1083
https://doi.org/10.1115/1.4026131
Published Online: February 24, 2014
... model is derived. A modified cumulative summation algorithm is applied to the residual generation model for robust fault detection and isolation of the EGR and VGT systems. The proposed observer based fault diagnosis algorithm is implemented on a real-time embedded system, and the bypass function...
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Topics: Engines, Exhaust gas recirculation, Sensors, Fault diagnosis, Flaw detection, Diesel engines, Algorithms, Valves, Pressure
Journal Articles

Adaptive Redundant Inertial Measurement Unit/Global Positioning System Integration Filter Structure for Fault Tolerant Navigation

Seong Yun Cho, Hyung Keun Lee, Chan Gook Park
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. March 2014, 136(2): 021009.
Paper No: DS-12-1275
https://doi.org/10.1115/1.4025753
Published Online: December 9, 2013
.... , Park , C. G. , and Lee , J. G. , 2012 , “ Two-Faults Detection and Isolation Using Extended Parity Space Approach ,” J. Electr. Eng. Technol. , 7 ( 3 ), pp. 411 – 419 . 10.5370/JEET.2012.7.3.411 [8] Lee , W. H. , and Park , C. G. , 2012 , “ A Fault Detection Method of Redundant...
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Topics: Filters, Sensors, Errors, Navigation
Journal Articles

Fault, State, and Unknown Input Reconstruction in Nonlinear Systems Using Sliding Mode Observers

Sharma R, Aldeen M
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research Papers
J. Dyn. Sys., Meas., Control. September 2011, 133(5): 051013.
https://doi.org/10.1115/1.4004040
Published Online: August 24, 2011
... inputs and the second is used for the fault detection and isolation. An important feature of the proposed approach is that the state trajectories do not leave the sliding manifold even in the presence of unknown inputs and faults. This allows for faults and unknown inputs to be completely reconstructed...
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Topics: Cascades (Fluid dynamics), Errors, Flaw detection, Nonlinear systems, Signals, Dynamics (Mechanics), Manifolds, Design