This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Development and Software in the Loop Validation of a Model-based Water Injection Combustion Controller for a GDI TC Engine
Technical Paper
2019-01-1174
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Turbocharged (TC) engines work at high Indicated Mean Effective Pressure (IMEP), resulting in high in-cylinder pressures and temperatures, improving thermal efficiency, but at the same time increasing the possibility of abnormal combustion events like knock and pre-ignition. To mitigate knocking conditions, engine control systems typically apply spark retard and/or mixture enrichment, which decrease indicated work and increase specific fuel consumption.
Many recent studies have advocated Water Injection (WI) as an approach to replace or supplement existing knock mitigation techniques. Water reduces temperatures in the end gas zone due to its high latent heat of vaporization. Furthermore, water vapor acts as diluent in the combustion process.
In this paper, the development of a novel closed-loop, model-based WI controller is discussed and critically analyzed. The innovative contribution of this paper is to propose a control strategy based on an analytical combustion model that describes the relationship between the combustion phase and the Spark Advance (SA), considering also the effects of the injected water mass. Such model is calibrated with experimental data acquired during dedicated experimental tests on a GDI TC engine, equipped with a prototype Port Water Injection (PWI) system.
At first the WI setup is described, and the main experimental data are presented and processed for model identification. Two algorithm versions are then explained in detail and implemented in Simulink environment, with a Real-Time (RT) oriented approach. In the last part of this work, the WI control strategy is tested in a Software in the Loop (SiL) system, coupled with a one-dimensional Fast Running Engine Model (FRM). The controller is tested on several engine points in steady state and transient conditions and the Root Mean Squared Error (RMSE) is calculated for the control targets. In this way, the performance of the model-based controller is verified, and the two versions of the algorithm are quantitatively compared.
Recommended Content
Authors
Citation
Ranuzzi, F., Cavina, N., Brusa, A., De Cesare, M. et al., "Development and Software in the Loop Validation of a Model-based Water Injection Combustion Controller for a GDI TC Engine," SAE Technical Paper 2019-01-1174, 2019, https://doi.org/10.4271/2019-01-1174.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 |
Also In
References
- Hoppe , F. , Thewes , M. , Baumgarten , H. , and Dohmen , J. Water Injection for Gasoline Engines: Potentials, Challenges, and Solutions International Journal of Engine Research 17 1 86 96 2016 10.1177/1468087415599867
- Berni , F. , Breda , S. , D'Adamo , A. , Fontanesi , S. et al. Numerical Investigation on the Effects of Water/Methanol Injection as Knock Suppressor to Increase the Fuel Efficiency of a Highly Downsized GDI Engine SAE Technical Paper 2015-24-2499 2015 10.4271/2015-24-2499
- Battistoni , M. , Grimaldi , C. , Cruccolini , V. , Discepoli , G. et al. Assessment of Port Water Injection Strategies to Control Knock in a GDI Engine through Multi-Cycle CFD Simulations SAE Technical Paper 2017-24-0034 2017 10.4271/2017-24-0034
- Cavina , N. , Rojo , N. , Businaro , A. , Brusa , A. et al. Investigation of Water Injection Effects on Combustion Characteristics of a GDI TC Engine SAE Int. J. Engines 10 4 2209 2218 2017 10.4271/2017-24-0052
- D'Adamo , A. , Berni , F. , Breda , S. , Lugli , M. et al. A Numerical Investigation on the Potentials of Water Injection as a Fuel Efficiency Enhancer in Highly Downsized GDI Engines SAE Technical Paper 2015-01-0393 2015 10.4271/2015-01-0393
- Rohit , A. , Satpathy , S. , Choi , J. , Hoard , J. et al. Literature Survey of Water Injection Benefits on Boosted Spark Ignited Engines SAE Technical Paper 2017-01-0658 2017 10.4271/2017-01-0658
- Iacobacci , A. , Marchitto , L. , and Valentino , G. Water Injection to Enhance Performance and Emissions of a Turbocharged Gasoline Engine under High Load Condition SAE Int. J. Engines 10 3 928 937 2017 10.4271/2017-01-0660
- Rahimi Boldaji , M. , Sofianopoulos , A. , Mamalis , S. , and Lawler , B. Effects of Mass, Pressure, and Timing of Injection on the Efficiency and Emissions Characteristics of TSCI Combustion with Direct Water Injection SAE Technical Paper 2018-01-0178 2018 10.4271/2018-01-0178
- Netzer , C. , Franken , T. , Seidel , L. , Lehtiniemi , H. et al. Numerical Analysis of the Impact of Water Injection on Combustion and Thermodynamics in a Gasoline Engine using Detailed Chemistry SAE Technical Paper 2018-01-0200 2018 10.4271/2018-01-0200
- Pauer , T. , Martin Frohnmaier , M. , Walther , J. , Schenk , P. et al. Optimization of Gasoline Engines by Water Injection Internationales Wiener Motorensymposium 2016
- Xiao , B. , Wang , S. , and Prucka , R.G. A Semi-Physical Artificial Neural Network for Feed Forward Ignition Timing Control of Multi-Fuel SI Engines SAE Technical Paper 2013-01-0324 2013 10.4271/2013-01-0324
- Hillion , M. , Chauvin , J. , and Petit , N. Open-Loop Combustion Timing Control of a Spark-Ignited Engine Proceedings of the 47th IEEE Conference on Decision and Control 2008 5635 5642
- Wang , S. , Prucka , M. , and Dourra , H. Model-Based Optimal Combustion Phasing Control Strategy for Spark Ignition Engines SAE Technical Paper 2016-01-0818 2016 10.4271/2016-01-0818
- Businaro , A. , Cavina , N. , Corti , E. , Mancini , G. et al. Accelerometer Based Methodology for Combustion Parameters Estimation Energy Procedia 81 950 959 2015 10.1016/j.egypro.2015.12.152
- Gamma Technology Inc. 2017
- Cavina , N. , Brusa , A. , Rojo , N. , and Corti , E. Statistical Analysis of Knock Intensity Probability Distribution and Development of 0-D Predictive Knock Model for a SI TC Engine SAE Technical Paper 2018-01-0858 2018 10.4271/2018-01-0858