This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Experimental Validation of a Model-Based Water Injection Combustion Control System for On-Board Application
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 09, 2019 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
Water Injection (WI) has become a key technology for increasing combustion efficiency in modern GDI turbocharged engines. In fact, the addition of water mitigates significantly the occurrence of knock, reduces exhaust gas temperatures, and opens the possibility to reach optimum heat release phasing even at high load.
This work presents the latest development of a model-based WI controller, and its experimental validation on a GDI TC engine. The controller is based on a novel approach that involves an analytic combustion model to define the spark advance (SA) required to reach a combustion phase target, considering injected water mass effects. The calibration and experimental validation of the proposed controller is shown in detail in the paper. At first, the focus is on the open-loop branch, to evaluate the performance of the combustion model and its ability to manage Spark Advance (SA) taking in account the phasing implications of WI, maintaining a pre-defined combustion phase target. Then the closed-loop (CL) chain is introduced, defining a structure that allows reaching the target while keeping knock intensity (KI) levels under an established threshold using two different control levers (SA and WI). At the same time, the controller has been designed to minimize water consumption. The proposed controller has then been implemented in a Rapid Control Prototyping environment, to validate the strategy on a real engine. As shown in the paper, this approach allows to manage both combustion phasing and knock level in an engine equipped with WI.
The closed-loop controller was initially based on in-cylinder pressure signals both for knock intensity and combustion phasing measurements. To allow the proposed controller to be ready for an on-board implementation, there is the need to replace the pressure signal used from the in-cylinder pressure sensor, not available on commercial vehicles. For this, a specific signal processing algorithm has been developed to extract the angular combustion phase from the accelerometric signals available on-board, and it has been validated with experimental data.
|Technical Paper||Spark Advance Control Using the Ion Current and Neural Soft Sensors|
|Technical Paper||Implementation of Fuel Film Compensation Algorithm on the Lamborghini Diablo 6.0 Engine|
CitationRanuzzi, F., Cavina, N., Scocozza, G., Brusa, A. et al., "Experimental Validation of a Model-Based Water Injection Combustion Control System for On-Board Application," SAE Technical Paper 2019-24-0015, 2019, https://doi.org/10.4271/2019-24-0015.
Data Sets - Support Documents
|Unnamed Dataset 1|
|Unnamed Dataset 2|
|Unnamed Dataset 3|
|Unnamed Dataset 4|
|Unnamed Dataset 5|
|Unnamed Dataset 6|
- 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 2017 10.4271/2017-24-0052
- 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
- Roth , D. B. , Jakiela , D. , Song , J. , Choi , M. , and Kwak , Y. Synergies of Cooled External EGR, Water Injection, Miller Valve Events and Cylinder Deactivation for the Improvement of Fuel Economy on a Turbocharged-GDI Engine; Part 2, Engine Testing SAE Technical Paper 2019-01-0242 2019 10.4271/2019-01-0242
- Falfari , S. , Bianchi , G. , Cazzoli , G. , Ricci , M. et al. Water Injection Applicability to Gasoline Engines: Thermodynamic Analysis SAE Technical Paper 2019-01-0266 2019 10.4271/2019-01-0266
- 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
- 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
- Pauer , T. , Martin Frohnmaier , M. , Walther , J. Schenk , P. et al. Optimization of Gasoline Engines by Water Injection Internationales Wiener Motorensymposium 2016
- 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 2019-01-0114 2019 10.4271/2019-01-1174
- 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
- Finesso , R. , Spessa , E. , Yang , Y. , Alfieri , V. et al. HRR and MFB50 Estimation in a Euro 6 Diesel Engine by Means of Control-Oriented Predictive Models SAE Int. J. Engines 8 3 2015 10.4271/2015-01-0879
- Finesso , R. and Spessa , E. A Feed-Forward Approach for the Real-Time Estimation and Control of MFB50 and SOI in Diesel Engines SAE Int. J. Engines 7 1 2014 10.4271/2014-01-9046
- 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. , 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
- Finesso , R. , Spessa , E. , Yang , Y. , Conte , G. et al. Neural-Network Based Approach for Real-Time Control of BMEP and MFB50 in a Euro 6 Diesel Engine SAE Technical Paper 2017-24-0068 2017 10.4271/2017-24-0068
- 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 December 2015 10.1016/j.egypro.2015.12.15