Control problems in a turbocharged spark-ignition engine

• Autorzy: Mitianiec W. , Rodak Ł.
• Języki publikacji: EN

Abstrakty

EN

The paper presents the problems of adapting of the charge system to the standard four stroke spark ignition engine Toyota Yaris 1300 cm3 with compression ratio 10.5. The main problem in charged spark ignition engine is control of air-fuel ratio near stoichiometric values at different boost pressure in order to obtain higher torque at the same level of specific fuel consumption and exhaust gas emission. Charging of such engine is connected with the problem of knock in the medium and high values of load at low engine speeds. Higher boost pressure leads to abnormal combustion process and to knocking. The paper describes the boost pressure control algorithm which enables to prevent the knock, so the engine can work near the knock boundary. The article includes a description of the engine, the method of charging and test bench, which was built to verify the proposed control algorithm for boost pressure. The publication contains the results of different tests conducted on the supercharged engine stand by the proposed algorithm and measured parameters were torque, fuel consumption and volumetric concentration of the main exhaust gas components. Applying of turbocharger in SI engines leads to knocking. The controlling of combustion process in SI engine is realized on the adjustment of WG or VTG to decrease or increase the rotational speed of turbocharger. Such control causes the engine work near boundary of knocking.

Słowa kluczowe

EN

transport; combustion engine; turbocharging

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2011
• Tom: Vol. 18, No. 3
• Strony: 269--277
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Mitianiec W.

autor

Rodak Ł.

• Cracow University of Technology JanaPawla II Av. 37, 31-864Krakow, Poland tel.: [phone], fax: [phone],

Bibliografia

• [1] Andersson, P., Intake air dynamics on a turbocharged SI-engine with wastegate, Ph.D. thesis, Linköping University, Sweden 2002.
• [2] Arbogast, J., Cooper, D., Rice, R., Model-Based Tuning Methods for PID Controllers, Control Station Inc., Tolland USA 2004.
• [3] Automotive Handbook, Robert Bosch Gmbh, Stuttgart 1996.
• [4] Colin, G., Chamaillard, Y., Bloch, G., Corde, G., Neural control of fast nonlinear systems—application to a turbocharged SI engine with VCT, IEEE Transactions on Neural Networks, 18 (4), pp. 1101–1114, 2007.
• [5] GT-POWER Tutorials, version 6.2, Gamma Technologies, Westmont, USA 2006.
• [6] Heywood, J. B., Internal Combustion Engine Fundamentals, Mc Graw-Hill, 1988.
• [7] Mitianiec, W., Jaroszewski, A., Modele matematyczne procesów fizycznych w silnikach spalinowych małej mocy, Ossolineum, Wroclaw-Warszawa-Krakow 1993.
• [8] Wajand, J. A., Wajand, J. T., Tłokowe silniki spalinowe średnio- i szybkoobrotowe, WNT, Warszawa 1997.
• [9] Wisłocki, K., Systemy do􀃡adowania szybkoobrotowych silników spalinowych, WKiŁ, Warszawa1998.