In-cylinder pressure reconstruction from engine block vibrations via a branched convolutional neural network

AB Ofner, A Kefalas, S Posch, G Pirker… - Mechanical Systems and …, 2023 - Elsevier
We introduce a novel approach to reconstructing the in-cylinder pressure trace from
vibration signals recorded with common knock sensors. The proposed methodology is …

A supervised machine learning technique for combustion diagnosis using a vibration sensor signal

B Pla, J De la Morena, P Bares, A Aramburu - Fuel, 2023 - Elsevier
Abstract Machine learning (ML) techniques are increasingly spreading in the automotive
area. The advantage of using data-based algorithms is evidenced in the study of complex …

[HTML][HTML] Development and experimental validation of an adaptive, piston-damage-based combustion control system for si engines: Part 1—evaluating open-loop chain …

A Brusa, N Cavina, N Rojo, J Mecagni, E Corti… - Energies, 2021 - mdpi.com
This work is focused on the development and validation of a spark advance controller,
based on a piston “damage” model and a predictive knock model. The algorithm represents …

Estimation of combustion parameters from engine vibrations based on discrete wavelet transform and gradient boosting

A Kefalas, AB Ofner, G Pirker, S Posch, BC Geiger… - Sensors, 2022 - mdpi.com
An optimal control of the combustion process of an engine ensures lower emissions and fuel
consumption plus high efficiencies. Combustion parameters such as the peak firing pressure …

Increasing knock detection sensitivity by combining knock sensor signal with a control oriented combustion model

B Pla, P Bares, I Jimenez, C Guardiola - Mechanical Systems and Signal …, 2022 - Elsevier
Knock phenomenon reduces the thermal efficiency and restricts performance improvement
in spark-ignited engines. Reliable and rapid knock recognition is crucial for the engine …

Adaptive in-cylinder pressure model for spark ignition engine control

B Pla, J De La Morena, P Bares, I Jiménez - Fuel, 2021 - Elsevier
In-cylinder pressure is the most important variable to analyze the combustion process in
internal combustion engines, and can be used as feedback signal for closed-loop …

Application of a Neural-Network-Based Algorithm for the Real-Time Correction of the In-Cylinder Pressure Signal Sensed with a Piezoelectric Washer

A Brusa, J Mecagni, E Corti, N Silvestri - SAE International Journal of …, 2022 - sae.org
The objective of this work is to analyze the signal of a piezoelectric washer installed under
the spark plug and to compare the combustion metrics evaluated with such signal to the …

Combustion parameter evaluation of diesel engine via vibration acceleration signal

P Zhang, W Gao, Y Li, Z Wei - International Journal of …, 2022 - journals.sagepub.com
Efficient combustion control has increasingly become a quality requirement for automobile
manufacturers because of its impact on pollutant and greenhouse gas emissions. In view of …

Development and software in the loop validation of a Model-based water injection combustion controller for a GDI TC engine

F Ranuzzi, N Cavina, A Brusa, M De Cesare… - 2019 - sae.org
Turbocharged (TC) engines work at high Indicated Mean Effective Pressure (IMEP),
resulting in high in-cylinder pressures and temperatures, improving thermal efficiency, but at …

Accelerometer-based estimation of combustion features for engine feedback control of compression-ignition direct-injection engines

ER Amezcua, B Maldonado, D Rothamer, K Kim… - 2020 - sae.org
An experimental investigation of non-intrusive combus-tion sensing was performed using a
tri-axial accelerometer mounted to the engine block of a small-bore high-speed 4-cylinder …