This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Implementation of Model-Based Calibration for a Gasoline Engine
Technical Paper
2012-01-0722
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
To meet the ever increasing requirements in the areas of performance, fuel economy and emission, more and more subsystems and control functions are being added to modern engines. This leads to a quick increase in the number of control parameters and consequently dramatic time and cost increase for engine calibration. To deal with this problem, the automotive industry has turned to model-based calibration for a solution. Model-based calibration is a method that uses modern Design of Experiments (DoE), statistical modeling and optimization techniques to efficiently produce high quality calibrations for engines. There are two major enablers for carrying out this method - fully automated engine control and measurement system, and advanced mathematical tools for DoE, modeling and optimization. This paper presents a case study of adopting this methodology for the determination of optimum steady state calibrations of ignition timing, air-fuel ratio and intake cam phasing for a gasoline engine. ORION automated engine control and measurement system is used for testing data collection. EasyDoE Toolsuite is used for DoE, engine response modeling and control parameter optimization. Major features of these tools are described. Each step in performing this process, including definition of factors and responses, DoE, automatic measurement on engine test bench, creation of engine models of sufficient accuracy, and generation of control maps using optimization techniques, is covered. The results demonstrate that the model-based approach is a well suited method for engine calibration, and the integrated system provides an effective solution for implementing model-based calibration.
Recommended Content
Authors
Citation
Jiang, S., Nutter, D., and Gullitti, A., "Implementation of Model-Based Calibration for a Gasoline Engine," SAE Technical Paper 2012-01-0722, 2012, https://doi.org/10.4271/2012-01-0722.Also In
References
- Guerrier, M. Cawsey, P. “The Development of Model Based Methodologies for Gasoline IC Engine Calibration,” SAE Technical Paper 2004-01-1466 2004 10.4271/2004-01-1466
- Schlosser, A. Kinoo, B. Salber, W. Werner, S. et al. “Accelerated Powertrain Development Through Model Based Calibration,” SAE Technical Paper 2006-01-0858 2006 10.4271/2006-01-0858
- Lumsden, G. Browett, C. Taylor, J. Kennedy, G. “Mapping Complex Engines,” SAE Technical Paper 2004-01-0038 2004 10.4271/2004-01-0038
- Suzuki, K. Nemoto, M. Machida, K. “Model-Based Calibration Process for Producing Optimal Spark Advance in a Gasoline Engine Equipped with a Variable Valve Train,” SAE Technical Paper 2006-01-3235 2006 10.4271/2006-01-3235
- Röpke, K. von Essen, C. DoE in engine development Quality and Reliability Eng. Int. 24 6 643 651 24 6 October 2008
- Röpke, K. et al. DoE-Design of Experiments, Methods and Applications In Engine Development Verlag Moderne Industrie Munich 2005
- Schoop, U. Reeves, J. Watanabe, S. Butts, K. Steady-State Engine Modeling for Calibration: A Productivity and Quality Study Automotive Conference 2007 Dearborn, MI, USA
- Gullitt, A. Nutter, D. Demonstration of the DoE Process with Software Tools Design of Experiments (DoE) in Engine Development IV Expert-Verlag 2009