Active method of three way catalyst monitoring by use of wideband combustion mixture composition sensor

• Autorzy: Kruczyński S. , Tomaszewski D. , Kamela

Warianty tytułu

PL

Aktywna metoda monitorowania pracy trójfunkcyjnego reaktora katalitycznego z wykorzystaniem szerokozakresowego sensora składu mieszanki palnej

• Języki publikacji: PL

Abstrakty

EN

In this paper the active method of three way catalyst monitoring by use of wideband combustion mixture composition sensor was described. This method relays on three way catalyst activity decrease by determination of it oxygen capacity decrease monitoring. Determination of catalyst oxygen capacity decrease was done by comparison of signals from wideband and binary combustion mixture composition sensors. These sensors were mounted before and after investigated catalyst. In this paper was described the test bench in which modified catalyst was used. The catalyst was modified to simulate it activity decrease. Paper contains the investigation procedure and also static and dynamic characteristics of wideband combustion mixture composition sensor. A hand of received results the characteristic of binary combustion mixture composition sensor reaction time on combustion mixture change in function of reactor activity was determinate. From received results the index of reactor oxygen capacity decrease was also determinate. Received results showed also that this method can be used for precise controlling of three way catalysts activity for on board diagnostic systems purposes. Additionally this method allows concluding on toxic gases emission in NEDC tests at steady state engine work cycle.

Słowa kluczowe

PL

silniki spalinowe; sensory składu mieszanki palnej; diagnostyka pokładowa; reaktory katalityczne; zanieczyszczenie środowiska

EN

combustion engines; combustion mixture composition sensors; on-board diagnostics; catalytic reactors; air pollution

• 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: 2007
• Tom: Vol. 14, No. 4
• Strony: 225--232
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Kruczyński S.

autor

Tomaszewski D.

autor

Kamela

• Technical University of Warsaw, Institute of Vehicles Narbutta 84, 02-524 Warszawa, Poland tel.[phone], fax: [phone],

Bibliografia

• [1] Kruczyński, S., Trójfunkcyjne reaktory katalityczne. Wydawnictwo ITE-PIB, Warszawa, Radom, 2005.
• [2] Ambrozik, A., Kruczyński, S., Łączyński, J., Tomaszewski D., Pomiary stężeń tlenu w diagnozowaniu pokładowym trójfunkcyjnego reaktora katalitycznego spali, Diagnostyka, Vol. 27, Olsztyn, 2002.
• [3] Kruczyński, S., Tomaszewski, D., Ślązak, M., Application of Amplitude Discriminants in Diagnosis of Three-Way Catalitic Converter, Journal of KONES, Vol. 12, 3-4, 2005.
• [4] Kruczyński, S., Tomaszewski, D., Analiza metod monitorowania pracy trójfunkcyjnego reaktora katalitycznego wykorzystujących dyskryminanty amplitudowe i funkcję interkorelacji, Diagnostyka Nr 4(40)/2006.
• [5] Zhao, F., Technologies for Near-Zero-Emission Gasoline-Powered Vehicles. SAE International, Warrendale, Pa. 2006.
• [6] Gasoline Engine Management, Robert Bosch GmbH. John Wiley Ltd. England 2006.