Plant Modeling for Closed Loop Combustion Control - A Thermodynamic Consistent and Real-Time Capable Approach AVL LIST GmbH

Format:

Conference/Event

Author/Creator:

Wurzenberger, Wurzenberger, author.

Contributor:

Poetsch, Christoph

Conference Name:

SAE 2015 World Congress & Exhibition (2015-04-21 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2015

Summary:

AbstractDirect injection Diesel engines are a propulsion technology that is continuously developed to meet emission standards. Great optimization potential lies in the combustion process itself. The application of closed loop combustion control allows reacting online to environmental conditions and stabilizing the combustion regarding performance and emissions. Dedicated real-time plant models help to develop and calibrate control algorithms in office and hardware in the loop environments. The present work describes a real-time capable, crank-angle resolved engine, cylinder and combustion model. The cylinder applies an 0D, two-zone approach and a phenomenological combustion model describes ignition delay, premixed and diffusive combustion. The latter is enhanced by a quasi-dimensional description of the injection spray. The model is validated with dedicated measurements. The plant model is applied in two use-cases for closed loop combustion control. The tradeoff between fuel consumption and noise is optimized via the timing of multiple injections. The interaction between air path control and fuel path control is investigated during a transient load pickup

Notes:

Vendor supplied data

Publisher Number:

2015-01-1247

Access Restriction:

Restricted for use by site license