Identification of fuel injection control system in a GDI engine

• Autorzy: Wołczyński Z.
• Języki publikacji: EN

Abstrakty

EN

In 1995 as a first in the world Mitsubishi introduced SI engine with the direct fuel injection to combustion chamber GDI (Gasoline Direct Injection). Currently such a way of providing of gasoline is applied and introduced to mass production by other companies. This solution permits to burn stratified mixtures which is rich in the region of the spark plug and very lean in more distant areas of the combustion chamber. The average mixture composition of such a mixture is very poor and often incombustible. The combustion of lean mixture to some extend permits to reduce fuel consumption but limits also the possibility of reduction of NOx by the typical catalyst. Furthermore the direct injection of gasoline to combustion chamber gives the possibility of the precise dosage in each cycle. The precise control of mixture composition is possible because the injection of the fuel takes place after closure of inlet valve, so the amount of the air in the cylinder is known. The precise dosage and the dispersion of the fuel in connected with several problems. The additional information which is provided by sensors installed on the engine is very useful to solve. Gasoline direct injection fuel systems are equipped with sensors which aren't use in standard indirect systems. These problems are described in the paper with special attention paid on the accuracy of the dosage of the fuel and all problems related with this.

Słowa kluczowe

EN

gasoline engine; mixture composition; injector characteristic; control of volumetric efficiency

• 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: 2010
• Tom: Vol. 17, No. 4
• Strony: 599--606
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Wołczyński Z.

• Technical University of Radom Chrobrego Av. 45, 26-600 Radom, Poland tel.:[phone],fax: [phone],

Bibliografia

• [1] Rozwój sposobu sterowania składem mieszanki z cyklu na cykl na przykładzie silnika benzynowego, sprawozdanie z realizacji projektu badawczego MNiI nr 4T12D00927 realizowanego w Politechnice Radomskiej, Radom 2007.
• [2] Workshop Manual - electrical wiring supplement CARISMA 2001, Mitsubishi Motors 2009.
• [3] Wołczyński, Z., Metoda sterowania składem mieszanki w silniku benzynowym, rozprawa doktorska, Politechnika Radomska, Radom 2005.