This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Knock Mitigation by Means of Coolant Control
Technical Paper
2019-24-0183
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The possibility to mitigate the knock onset by means of a controlled coolant flow rate is investigated. The study is carried out on a small displacement, N.A. 4-valve per cylinder SI engine. The substitution of the standard belt-driven pump with an electrically driven one allows the variation of the coolant flow rate regardless of engine speed and permits, therefore, the adoption of a controlled coolant flow rate. The first set of experimental tests aims at evaluating the engine operating condition and the coolant flow rate, which are more favorable to the knock onset. Starting from this condition, subsequent experimental tests are carried out for transient engine operating conditions, by varying the coolant flow rates and evaluating, therefore, its effects on cylinder pressure fluctuations. In all the experiments, the spark advance and the equivalence ratio are controlled by the ECU according to the production engine map. The results show that the effects of coolant flow rate on in-cylinder pressure fluctuations are not negligible and the implementation of a predictive controller for the management of the coolant flow rate can be adopted for mitigating knock by limiting, therefore, the use of more fuel consuming strategies.
Recommended Content
Authors
Topic
Citation
Perrone, D., Falbo, L., Castiglione, T., and Bova, S., "Knock Mitigation by Means of Coolant Control," SAE Technical Paper 2019-24-0183, 2019, https://doi.org/10.4271/2019-24-0183.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 |
Also In
References
- Iwashita , Y. , Kanda , M. , Hartagiri , H. , and Yokoi , Y. Improvement of Coolant Flow for Reducing Knock I. Mech. E. Autoitech Conference 1989
- Finlay , I.C. , Tugwell , W. , Biddulp , T. , and Marshall , R.A. The Influence of Coolant Temperature on the Performance of a Four Cylinder 1100cc Engine Employing a Dual Circuit Cooling System Heat and Mass Transfer in Gasoline and Diesel Engine 1989
- Russ , S. A Review of the Effect of Engine Operating Conditions on Borderline Knock SAE Technical Paper 960497 1996 10.4271/960497
- Hoppe , F. , Thewes , M. , Baumgarten , H. , and Dohmen , J. Water Injection for Gasoline Engines: Potentials, Challenges, and Solutions Int J Eng Res 17 1 86 96 2016 10.1177/1468087415599867
- Soyelmez , M.S. and Ozcan , H. Water Injection Effects on the Performance of Four Cylinder, LPG Fuelled SI Engine Open Access Sci Rep 2 591 593 2013
- Busuttil , D. and Farrugia , M. Experimental Investigation on the Effect of Injecting Water to the Air to Fuel Mixture in a Spark Ignition Engine MM (Mod Mach) Sci J 1 585 590 2015
- Francqueville , L. and Michel , J. On the Effects of EGR on Spark-Ignited Gasoline Combustion at High Load SAE Int J Eng 7 4 1808 1823 2014 10.4271/2014-01-2628
- Potteau , S. , Lutz , P. , Leroux , S. , Moroz , S. et al. Cooled EGR for a Turbo SI Engine to Reduce Knocking and Fuel Consumption SAE Technical Paper 2007-01-3978 2007 10.4271/2007-01-3978
- Alger , T. , Chauvet , T. , and Dimitrova , Z. Synergies between High EGR Operation and GDI Systems SAE Int J Eng 1 1 101 114 2008
- Lee , S. , Park , S. , Kim , C. , Kim , Y.M. et al. Comparative Study on EGR and Lean Burn Strategies Employed in an SI Engine Fueled by Low Calorific Gas Appl Energy 129 10 16 2014 10.1016/j.apenergy.2014.04.082
- Lattimore , T. , Wang , C. , Xu , H. , Wyszynski , M.L. , and Shuai , S. Investigation of EGR Effect on Combustion and PM Emissions in a DISI Engine Appl Energy 161 256 267 2016 10.1016/j.apenergy.2015.09.080
- Wei , H. , Zhu , T. , Shu , G. , Tan , L. , and Wang , Y. Gasoline Engine Exhaust Gas Recirculation a Review Appl Energy 99 534 544 2012 10.1016/j.apenergy.2012.05.011
- Bozza , F. , De Bellis , V. , and Teodosio , L. Potentials of Cooled EGR and Water Injection for Knock Resistance and Fuel Consumption Improvements of Gasoline Engines Appl Energy 169 112 125 2016 10.1016/j.apenergy.2016.01.129
- Castiglione , T. , Rovense , F. , Algieri , A. , and Bova , S. Powertrain Thermal Management for CO2 Reduction SAE Technical Paper 2018-37-0020 2018 10.4271/2018-37-0020
- Pizzonia , F. , Castiglione , T. , and Bova , S. A Robust Model Predictive Control for Efficient Thermal Management of Internal Combustion Engines Appl Energy 169 555 566 2016 10.1016/j.apenergy.2016.02.063
- Piccione , R. and Bova , S. Engine Rapid Shutdown: Experimental Investigation on the Cooling System Transient Response J. Eng. Gas Turbines Power 132 7 072801 2010 10.1115/1.4000262
- Bova , S. , Piccione , R. , Durante , D. , and Perrussio , M. Experimental Analysis of the after-Boiling Phenomenon in a Small I.C.E SAE Technical Paper 2004-32-0091 2004 10.4271/2004-32-0091
- Xiaofeng , G. , Stone , R. , Hudson , C. , and Bradbury , I. The Detection and Quantification of Knock in Spark Ignition Engines SAE Technical Paper 932759 1993 10.4271/932759
- Livengood , J. C. and Wu , P.C. Correlation of Autoignition Phenomena in Internal Combustion Engines and Rapid Compression Machines 5th Symp. (Int.) on Combustion 1995 347 356
- Bova , S. , Castiglione , T. , Piccione , R. , and Pizzonia , F. A Dynamic Nucleate-Boiling Model for CO2 Reduction in Internal Combustion Engines Appl Energ. 143 271 282 2015 10.1016/j.apenergy.2015.01.047
- Heywood , J. B. Internal Combustion Engine Fundamentals Second McGraw-Hill 2018