This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Downsized Gasoline Engine Cylinder Deactivation MiL Development and Validation Using Real-Time 1-D Gas Code
Technical Paper
2018-01-1244
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Cylinder deactivation has become common not only in large swept volume gasoline V-engines but also in cheaper highly downsized automotive engines. Cylinder deactivation strategy leads to a combination of reduced throttling and pumping losses and consequently, to CO2 emissions reduction. This is achieved by deactivation of some cylinders and by moving the operation point of the firing cylinders to higher loads to compensate for the deactivated cylinders. This paper focuses on the 1.4 litre direct injection gasoline 4-cylinder (inline) engine and the development of its deactivation strategy in the Model in the Loop (MiL) environment using the Ricardo 1-D gas real-time code ‘WAVE-RT’ as the virtual engine controlled by the engine control strategy. The engine control strategy can be easily flashed into rapid prototyping ECU and validated on the testbed. The engine does not include ‘expensive’ 2nd + 3rd valve closing technology and therefore, the deactivation feature is achieved just by zero cylinder fueling applied to one or more cylinders to achieve the best possible fuel consumption. The real-time 1-D gas thermodynamic engine model is validated within the entire engine operating range against test data with/without deactivated cylinders. Moreover, further validation is done by running both the physical engine and the 1-D gas real-time code at transient load/speed cycles. The results from the steady-state and transient cycles show CO2 reduction. Using the MiL approach, the best cylinder deactivation strategy regions are identified. Additionally, the proposed MiL environment containing the 1-D gas real-time code and the engine control strategy can be further used for the development and calibration of advanced dynamic deactivation (known as skip-fire) strategies.
Recommended Content
Authors
Citation
Kouba, A., Hnilicka, B., and Navratil, J., "Downsized Gasoline Engine Cylinder Deactivation MiL Development and Validation Using Real-Time 1-D Gas Code," SAE Technical Paper 2018-01-1244, 2018, https://doi.org/10.4271/2018-01-1244.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 |
Also In
References
- M. L. Mery 1895
- Watanabe , E. and Fukutani , I. Cylinder Cutoff of 4-Stroke Cycle Engines at Part-Load and Idle SAE Technical Paper 820156 1982 10.4271/820156
- Falkowski , A. , McElwee , M. , and Bonne , M. Design and Development of the DaimlerChrysler 5.7L HEMI® Engine Multi-Displacement Cylinder Deactivation System SAE Technical Paper 2004-01-2106 2004 10.4271/2004-01-2106
- Stabinsky , M. , Albertson , W. , Tuttle , J. , Kehr , D. et al. Active Fuel Management™ Technology: Hardware Development on a 2007 GM 3.9L V-6 OHV SI Engine SAE Technical Paper 2007-01-1292 2007 10.4271/2007-01-1292
- Fujiwara , M. , Kumagai , K. , Segawa , M. , Sato , R. et al. Development of a 6-Cylinder Gasoline Engine with New Variable Cylinder Management Technology SAE Technical Paper 2008-01-0610 2008 10.4271/2008-01-0610
- Hadler , J. , Neusser , H.-J. , Szengel , R. , Middendorf , H. 2012
- Maehara , H. , Kitawaki , S. , Abe , T. , Saito , S. et al. Development of Variable Cylinder Management System for Large Motorcycles- an Effective Way of Reducing Output Change at Switching of the Number of Working Cylinders SAE Technical Paper 2010-32-0117 2010 10.4271/2010-32-0117
- Förster , H.J. , Lübbing , B.E. , and Letsche , U. Process and Apparatus for Intermittent Control of a Cyclically Operating Internal Combustion Engine U.S. Pat. 4509488 1982
- Tripathi , A. and Silvestri , C. Internal Combustion Engine Control for Improved Fuel Efficiency U.S. Patent 7 577 511 2009
- Tripathi , A. and Silvestri , C. Internal Combustion Engine Control for Improved Fuel Efficiency U.S. Patent 7 849 835 2010
- Tripathi , A. and Silvestri , C. Internal Combustion Engine Control for Improved Fuel Efficiency U.S. Patent 7 886 715 2011
- Tripathi , A. and Silvestri , C. Internal Combustion Engine Control for Improved Fuel Efficiency U.S. Patent 7 954 474 2011
- Tripathi , A. and Silvestri , C. Internal Combustion Engine Control for Improved Fuel Efficiency U.S. Patent 8 099 224 2012
- Tripathi , A. and Silvestri , C. Internal Combustion Engine Control for Improved Fuel Efficiency U.S. Patent 8 131 445 2012
- Tripathi , A. and Silvestri , C. Internal Combustion Engine Control for Improved Fuel Efficiency U.S. Patent 8 131 447 2012
- Wilcutts , M. , Switkes , J. , Shost , M. , and Tripathi , A. Design and Benefits of Dynamic Skip Fire Strategies for Cylinder Deactivated Engines SAE Int. J. Engines 6 1 278 288 2013 https://doi.org/10.4271/2013-01-0359
- Serrano , J. , Routledge , G. , Lo , N. , Shost , M. et al. Methods of Evaluating and Mitigating NVH when Operating an Engine in Dynamic Skip Fire SAE Int. J. Engines 7 3 1489 1501 2014 https://doi.org/10.4271/2014-01-1675
- Vent , G. , Enderle , C. , Merdes , N. , Kreitmann , F. , and Weller , R. The new 2.0l turbo engine from the Mercedes-Benz 4-cylinder engine family 2nd China Aachen Colloquium 2012
- Silvestri , C.J. and Tripathi , A.S. Patent 20,120,042,633 A1, issued February 2012
- Ricardo rCube2: Rapid prototyping ECU http://www.ricardo.com/rCube2 2017
- Ricardo WAVE-RT https://software.ricardo.com/products/wave-rt 2017
- Ricardo WAVE https://software.ricardo.com/products/wave 2017
- WAVE Help System 2017
- Pacitti , G. , Amphlett , S. , Miller , P. , Norris , R. et al. Real-Time Crank-Resolved Engine Simulation for Testing New Engine Management Systems SAE Int. J. Passeng. Cars - Mech. Syst 801 809 2009 2008-01-1006
- Kouba , A. , Navratil , J. , Hnilicka , B. , and Niven , P. Sensorless Control Strategy Enabled by a Sophisticated Tool Chain SAE Technical Paper 2015-01-2847 2015 10.4271/2015-01-2847