Progress in knock combustion modeling of spark ignition engines

F Ji, S Meng, Z Han, G Dong, RD Reitz - Applied Energy, 2025 - Elsevier
Knock combustion is one of the primary factors limiting thermal efficiency improvement in
spark ignition (SI) engines. After a century of research, scholars have made significant …

Statistical study on engine knock oscillation and heat release using multiple spark plugs and pressure sensors

H Shi, K Uddeen, Y An, Y Pei, B Johansson - Fuel, 2021 - Elsevier
Engine knock has been an inherent problem that limits engine efficiency improvement and
threatens engine service life. To trigger the controllable knock, a specialized liner with …

Knock detection in combustion engine time series using a theory-guided 1-D convolutional neural network approach

AB Ofner, A Kefalas, S Posch… - … /ASME Transactions on …, 2022 - ieeexplore.ieee.org
This article introduces a method for the detection of knock occurrences in an internal
combustion engine (ICE) using a 1-D convolutional neural network trained on in-cylinder …

Prediction modeling and analysis of knocking combustion using an improved 0D RGF model and supervised deep learning

S Cho, J Park, C Song, S Oh, S Lee, M Kim, K Min - Energies, 2019 - mdpi.com
The knock phenomenon is one of the major hindrances for enhancing the thermal efficiency
in spark-ignited engines. Due to the stochastic behavior of knocking combustion, analytical …

Pressure-based knock measurement issues

AJ Shahlari, J Ghandhi - 2017 - sae.org
Highly time resolved measurements of cylinder pressure acquired simultaneously from three
transducers were used to investigate the nature of knocking combustion and to identify …

An experimental study on the knock mitigation effect of coolant and thermal boundary temperatures in spark ignited engines

S Cho, C Song, S Oh, K Min, KP Ha, BS Kim - 2018 - sae.org
Increasing compression ratio is essential for developing future high-efficiency engines due
to the intrinsic characteristics of spark-ignited engines. However, it also causes the …

A statistical description of knock intensity and its prediction

J Ghandhi, KS Kim - 2017 - sae.org
Cycle-to-cycle variation in combustion phasing and combustion rate cause knock to occur
differently in every cycle. This is found to be true even if the end gas thermo-chemical time …

Knock Onset Determination with 1D CNN Using Random Search Hyperparameter Optimization and Data Augmentation in SI Engine

J Park, S Shin, S Oh, S Lee, W Shin, K Min - International Journal of …, 2023 - Springer
For avoiding knock occurrence in SI engines, spark timing is retarded whenever the knock
has occurred which leads to a loss of thermal efficiency. Therefore, the knock occurrence …

Knocking and combustion noise analysis

RK Maurya, RK Maurya - … In-Cylinder Pressure Measurement and Analysis, 2019 - Springer
Knock is an abnormal and stochastic combustion phenomenon which needs detailed
analysis because it governs the power density of engine, fuel consumption (engine …

Prediction of knock propensity using stochastic modeling in a spark-ignition engine

S Cho, C Song, Y Lee, N Kim, S Oh… - International Journal of …, 2023 - journals.sagepub.com
To comply with stringent CO2 regulations, enhanced thermal efficiency has been prioritized
in internal combustion engine development; however, this has strongly driven the …