The study measured Mass Air Flow, (MAF), Manifold Absolute Pressure, (MAP), and emissions of NO and soot during fourteen transients of speed and load, representative of the Extra Urban Drive Cycle (EUDC). The tests were conducted on a typical passenger car/light-duty truck powertrain (a turbocharged common-rail diesel engine, of in-line 4-cylinder configuration). The objective was to compare NO and soot with corresponding steady-state emission results and propose an engine measurement methodology that will potentially quantify deviation (i.e. deterioration with respect to steady state optimum) in emissions of NO and soot during transients. Comparison between steady state, quasi-steady-states (defined later in the paper) and transients indicated that discrete quasi-steady-state engine operation, can be used for accurate prediction of transient emissions of NO and soot. Furthermore, quasi-steady-state engine characterisation quantified NO and soot deterioration that may occur due to MAF and MAP deviations from their optimised (steady-state) values. Therefore, the results from quasi-steady-state can be used to estimate deterioration in emissions during transients. These results are potentially of use in modelling with a view to assess component to engine compatibility during the engine development phase and minimise emissions deterioration (due to component ageing and production variability) during the life-time of engine.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Estimation of deviations in NO and soot emissions between steady-state and EUDC transient operation of a common-rail diesel engine


    Additional title:

    Sae Int. J. Engines


    Contributors:

    Conference:

    9th International Conference on Engines and Vehicles ; 2009


    Published in:

    Publication date :

    2009-09-13


    Size :

    12 pages




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Diesel engine transient control and emissions response during a european extra-urban drive cycle ( EUDC )

    Black,J. / Eastwood,P.G. / Winstanley,T. et al. | Automotive engineering | 2007


    Analysis of Deviations from Steady State Performance During Transient Operation of a Light Duty Diesel Engine

    Glewen, W. / Heuwetter, D. / Foster, D. et al. | British Library Conference Proceedings | 2012


    Analysis of Deviations from Steady State Performance During Transient Operation of a Light Duty Diesel Engine

    Heuwetter, David / Foster, David E. / Andrie, Michael et al. | SAE Technical Papers | 2012


    Soot Emission Measurements and Validation of a Mean Value Soot Model for Common-Rail Diesel Engines during Transient Operation

    Boulouchos, Konstantinos / Kirchen, Patrick / Obrecht, Peter | SAE Technical Papers | 2009


    Engine friction model for transient operation of turbocharged, common rail diesel engines

    Taraza,D. / Henein,N.A. / Ceausu,R. et al. | Automotive engineering | 2007