In this article, a Gaussian mixture model (GMM) clustering-based method is proposed to
learn the optimal threshold of the knock intensity metric, which minimizes the probability of …

Knock is one of the main limitations on increasing spark-ignition (SI) engine efficiency. This
has been known for at least 100 years, and it is still the case today. Knock occurs when …

In the recent past engine knock emerged as one of the main limiting aspects for the
achievement of higher efficiency targets in modern spark-ignition (SI) engines. To attain …

Knock has historically been one of the main limitations on spark ignition (SI) engine
compression ratio and hence efficiency. The trend to downsizing or rightsizing in recent …

Engine knock is one of the most limiting factors for modern Spark-Ignition (SI) engines to
achieve high efficiency targets. The stochastic nature of knock in SI units hinders the …

The easiest way to identify knock conditions during the operation of a SI engine is
represented by the knowledge of the in-cylinder pressure. Traditional techniques like MAPO …

High pressure gradients at homogeneous charge compression ignition (HCCI) engines
heavily excite the pressure resonance. The pressure resonant frequency depends on speed …

In this work, various techniques are numerically applied to a base engine-vehicle system to
estimate their potential CO2 emission reduction. The reference thermal unit is a downsized …

Nowadays different technical solutions have been proposed to improve the performance of
internal combustion engines, especially in terms of Brake Specific Fuel Consumption …

A new method for optimizing the knock threshold is presented and shown to significantly
improve the closed loop performance of a standard knock controller. Traditional approaches …