One of the principal issues of alternative combustion modes for Diesel engines (such as HCCI, PCCI and LTC) is related to imbalances in the distribution of air and EGR across the cylinders, which ultimately cause significant differences in the pressure trace and indicated torque for each cylinder. In principle, a cylinder-by-cylinder control approach could compensate for air, residuals, and temperature imbalance. However, in order to fully benefit from closed-loop combustion control, it is necessary to obtain feedback from each engine cylinder to reconstruct the pressure trace. Therefore, cylinder imbalance is an issue that can be detected in a laboratory environment, wherein each engine cylinder is instrumented with a dedicated pressure transducer. The objective of the work in this paper is to estimating the individual in-cylinder pressure traces in a multi-cylinder engine, relying on a very restricted sensor set, namely a crankshaft speed sensor, a single production-grade pressure sensor. In doing so, a crankshaft model will be developed and a sliding mode observer will be employed to estimate the cylinder pressure using only crankshaft speed fluctuation measurement. Furthermore, as an added enhancement, the cylinder pressure signal from one cylinder will be utilized to adapt the friction and heat release parameters for more accurate estimation in all cylinders.
Skip Nav Destination
ASME 2012 Internal Combustion Engine Division Spring Technical Conference
May 6–9, 2012
Torino, Piemonte, Italy
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
978-0-7918-4466-3
PROCEEDINGS PAPER
Model-Based Methodology for Estimating Engine Cylinder Pressure Imbalance for Combustion Feedback Control Applications
Ahmed Al-Durra
Ahmed Al-Durra
The Petroleum Institute, Abu Dhabi, UAE
Search for other works by this author on:
Ahmed Al-Durra
The Petroleum Institute, Abu Dhabi, UAE
Paper No:
ICES2012-81110, pp. 583-595; 13 pages
Published Online:
July 18, 2013
Citation
Al-Durra, A. "Model-Based Methodology for Estimating Engine Cylinder Pressure Imbalance for Combustion Feedback Control Applications." Proceedings of the ASME 2012 Internal Combustion Engine Division Spring Technical Conference. ASME 2012 Internal Combustion Engine Division Spring Technical Conference. Torino, Piemonte, Italy. May 6–9, 2012. pp. 583-595. ASME. https://doi.org/10.1115/ICES2012-81110
Download citation file:
8
Views
0
Citations
Related Proceedings Papers
Related Articles
Detection of Combustion Resonance Using an Ion Current Sensor in Diesel Engines
J. Eng. Gas Turbines Power (May,2012)
A Mean-Value Model for Control of Homogeneous Charge Compression Ignition (HCCI) Engines
J. Dyn. Sys., Meas., Control (September,2005)
Mean Value Modeling and Analysis of HCCI Diesel Engines With External Mixture Formation
J. Dyn. Sys., Meas., Control (January,2009)
Related Chapters
Outlook
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Physiology of Human Power Generation
Design of Human Powered Vehicles
QP Based Encoder Feedback Control
Robot Manipulator Redundancy Resolution