Fault Detection

Real-time combustion torque estimation and dynamic misfire fault diagnosis in gasoline engine

This work proposes a hybrid Luenberger–sliding mode state observer to estimate engine combustion torque, enabling effective ANN-based misfire fault diagnosis under both steady and …

Misfire detection based on switched state observer of hybrid system in internal combustion engine

This work develops a hybrid Luenberger–sliding mode observer for crankshaft acceleration estimation, enabling fast and accurate misfire fault detection.

Yu Zhang

• Apr 3, 2017 • 1 min read

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Real-time crankshaft angular speed tracking and indicated torque estimation via optimized Luenberger sliding mode observer

This paper applies a data-driven NARMA-L2 model to SCR systems, enabling accurate urea injection control and demonstrating superior performance over traditional PID in simulations.

Yu Zhang

• Mar 1, 2017 • 1 min read

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Control of a selective catalytic reduction system based on NARMA-L2 model

This study proposes an optimized Luenberger sliding mode observer using crankshaft angular speed to estimate engine indicated torque under NEDC, with Lyapunov-proven convergence …

Misfire Fault Diagnosis of Automobile Engine: A Review

This study reviews misfire fault diagnosis in OBD systems, summarizing methods, classifications, observer designs, and future perspectives on reducing emissions, fuel consumption, …

Valve clearance fault diagnosis of an internal combustion engine based on wavelet packets and k-nearest neighbors