A cylinder pressure-based knock detection method for pre-chamber ignition gasoline engine

Journal article


Palakunnummal, M.F., Sahu, P., Ellis, M. and Nazha, M. (2020). A cylinder pressure-based knock detection method for pre-chamber ignition gasoline engine. SAE International Journal of Engines.
AuthorsPalakunnummal, M.F., Sahu, P., Ellis, M. and Nazha, M.
Abstract

Pre-chamber ignition system has the potential to reduce burn duration of lean-burn gasoline engine combustion and can achieve reduced knock occurrence from the distributed ignition sources. Pre-chamber ignition produces high velocity turbulent jets and these jets often reach sonic velocity and produce shock waves inside the combustion chamber. These shock waves make knock detection difficult with a conventional surface mounted acoustic knock sensor. This paper discusses how an acoustic knock sensor works with pre-chamber ignition and evaluates different cylinder pressure-based knock detection strategies and proposes a method which eliminates the influence of jet induced oscillations on knock detection.

Year2020
JournalSAE International Journal of Engines
PublisherSAE International
ISSN0096-736X
Publication process dates
Accepted01 Dec 2020
Deposited07 Dec 2020
Accepted author manuscript
License
File Access Level
Open
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https://openresearch.lsbu.ac.uk/item/8v8z4

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Simulation aided development of pre-chamber ignition system for a lean-burn gasoline direct injection motor-sport engine
Palakunnummal, M, Sahu, P, Ellis, M and Nazha, PM (2020). Simulation aided development of pre-chamber ignition system for a lean-burn gasoline direct injection motor-sport engine. Journal of Engineering for Gas Turbines and Power, ASME. 142 (8). https://doi.org/10.1115/1.4047767