Internal combustion engines are being required to comply with increasingly stringent government exhaust emissions regulations. Compression ignition (CI) piston engines will continue to be used in cost-sensitive fuel applications such as in heavy-duty buses and trucks, power generation, locomotives and off-highway applications, and will find application in hybrid electric vehicles. Close control of combustion in these engines will be essential to achieve ever-increasing efficiency improvements while meeting increasingly stringent emissions standards. The engines of the future will require significantly more complex control than existing map-based control strategies, having many more degrees of freedom than those of today.

    Neural network (NN)-based engine modelling offers the potential for a multidimensional, adaptive, learning control system that does not require knowledge of the governing equations for engine performance or the combustion kinetics of emissions formation that a conventional map-based engine model requires. The application of a neural network to model the output torque and exhaust emissions from a modern heavy-duty diesel engine (Navistar T444E) is shown to be able to predict the continuous torque and exhaust emissions from a heavy-duty diesel engine for the Federal heavy-duty engine transient test procedure (FTP) cycle and two random cycles to within 5 per cent of their measured values after only 100 min of transient dynamometer training. Applications of such a neural net model include emissions virtual sensing, on-board diagnostics (OBD) and engine control strategy optimization.


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    Titel :

    Technical Note: Neural network modelling of the emissions and performance of a heavy-duty diesel engine


    Beteiligte:
    Thompson, G. J. (Autor:in) / Atkinson, C. M. (Autor:in) / Clark, N. N. (Autor:in) / Long, T. W. (Autor:in) / Hanzevack, E (Autor:in)


    Erscheinungsdatum :

    2000-02-01


    Format / Umfang :

    16 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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    Speciation of Heavy Duty Diesel Engine Exhaust Emissions

    Atkinson, C. M. / Coordinating Research Council | British Library Conference Proceedings | 1995


    Weighting of parameters in artificial neural network prediction of heavy-duty diesel engine emissions

    Jarrett,R.P. / Clark,N.N. / West Virginia Univ.,US | Kraftfahrwesen | 2002