Estimation Of Catalytic Converter Efficiency With The Assistance Of Nox Sensor In Light Of Function Of Obd System In Vehicles With CI Engines

• Autorzy: Rychert M.
• Języki publikacji: EN

Abstrakty

EN

One of the methods to reduce emission of toxic components is continuous control over engine elements that are directly or indirectly responsible for level of emission of these components. Introduction of these requirements caused creation of the self-diagnostic definition and utilising innovation definition self-diagnostic - self-diagnostic system comparing value of signals from circuit of electronic control device with control values. If the real signal value does not comply with control value, the memory of the control devices records the error code. This paper include basic terms and rules of function European On Board Diagnostic in light of large quantity of vehicles in Europe and in the whole world, level of pollution environment and one of method of prevention degradation environment and basic rules according to built and monitoring of catalytic converters. The development of a catalytic converter required an analysis of selected physical parameters of the supports. This resulted from the necessity to assume given parameters of the supports applied in the tests in exhaust gas environment in the CI engines. An analysis of ionic conductors which constitute the basic solution in voltage sensors providing signals through NOx electrocatalysis. The aim of this paper is to determine the basis for the monitoring of catalytic converters in compression ignition engines by the emission level of a selected exhaust gas component as a diagnostic signal. The emission of NOx has been taken as the basis. This required the development of a specialized system allowing the reduction of NOx and obtaining of a diagnostic signal reflecting the level of the said reduction. Those paper include same results of testing and possibilities monitoring of prototype catalytic converter on the test bad.

Słowa kluczowe

EN

monitor; OBD II; EOBD; sensor; temperature; pressure; catalytic converter

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2007
• Tom: Vol. 2, no 2
• Strony: 457--464
• Opis fizyczny: Bibliogr. 5 poz., rys., tab., fot.

Twórcy

autor

Rychert M.

• Motor Transport Institute 80 Jagiellońska St., 03-301 Warszawa phone: [phone]; fax: [phone],

Bibliografia

• [1] Merkisz, J., Mazurek, S., Pokładowe systemy diagnostyczne pojazdów samochodowych; WKiŁ, Warszawa, 2002.
• [2] Merkisz, J., Rychter, M., Monitorowanie sprawności reaktora katalitycznego pod kątem diagnostyki pokładowej EOBD II, Warszawa, Kones, 2002.
• [3] Rychter, M., Monitorowanie silnika o zapłonie samoczynnym w systemie OBD na podstawie emisji spalin w kontekście poprawy właściwości ekologicznych silnika, Rozprawa doktorska, Politechnika Poznańska, Poznań, 2004.
• [4] Rychter, M.: Analiza warunków panujących w układzie wylotowym silnika o ZS w aspekcie zastosowania sond pomiarowych określających stężenie NOx, Transport Samochodowy 1/2006, str. 53–73, 2006.
• [5] Rychter, M.: Wykorzystanie przewodników jonowych w budowie czujników stężenia składników gazów wylotowych w celu monitorowania reaktora katalitycznego w silnikach o ZS w aspekcie systemu OBD II/EOBD, Kongres PTNSS, 25–28.09.2005,Szczyrk, Polska, CD-R, 2005.