Abstract: This paper presents spectral analysis of an electrohydraulic system. For a linear system, spectral analysis using a frequency response function (FRF) offers great insight into system dynamics and controls. The objective ...

Abstract: This paper presents the novel on-board air–fuel ratio (AFR) imbalance diagnostic of spark-ignited (SI) engines. Because of the reciprocating nature of internal combustion engines, while this fault is present, it is known ...

Abstract: This technical brief presents anti-windup adaptation algorithms for a look-up table (LUT), widely used in data-driven engine control systems to accurately model complex features while minimizing computational demand. Engine ...

Abstract: A controloriented twozone charge mixing model is developed to simplify, but to describe mixing of fresh charge and residual gas during the intake stroke. Engine valve timing has a strong influence on the realization of ...