期刊
SENSORS
卷 21, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/s21062186
关键词
engine in-cylinder pressure; shaft velocity; neural networks; data prediction
资金
- research project Desarrollo de un sistema de monitoreo para el analisis energetico y de condicion de emisiones en motores de combustion interna diesel con base en tecnicas no intrusiva by MINCIENCIAS [1110-776-57801]
- Vicerrectoria de Investigaciones, Innovacion y Extension from Universidad Tecnologica de Pereira
- Maestria en Ingenieria Electrica from Universidad Tecnologica de Pereira
This study introduces a method based on time-delay neural networks to estimate the in-cylinder pressure of a single-cylinder internal combustion engine. Through experiments, it is demonstrated that this method can predict pressure with an accuracy of R2 >0.9 without the need for complicated preprocessing steps.
Pressure is one of the essential variables to give information about engine condition and monitoring. Direct recording of this signal is complex and invasive, while angular velocity can be measured. Nonetheless, the challenge is to predict the cylinder pressure using the shaft kinematics accurately. In this paper, a time-delay neural network (TDNN), interpreted as a finite pulse response (FIR) filter, is proposed to estimate the in-cylinder pressure of a single-cylinder internal combustion engine (ICE) from fluctuations in shaft angular velocity. The experiments are conducted over data obtained from an ICE operating in 12 different states by changing the angular velocity and load. The TDNN's delay is adjusted to get the highest possible correlation-based score. Our methodology can predict pressure with an R2 >0.9, avoiding complicated pre-processing steps.
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