An optimising routine has been developed which makes use of a neural network base engine emissions model to set an ideal oparating line (IOL) for use with an Diesel engine/CVT (continuous variable transmission) driveline controller. This allows the supervisory controller to locate the engine at the optimum operating point for the demanded power. The approach used is flexible allowing easy adjustment and tuning of the balance between emissions. The IOL may be updated during operation to reflect the effect of changing conditions on emissions production. The simple drive cycle simulation technique presented allows a useful preliminary representation of the effects of choice of the IOL. Results are presented which suggest that it is possible to alter the emissions performance of the vehicle significantly over the ECE15+EUDC test by varying the IOL. The engineer may choose the pollutant to be minimised although a trade off with other emissions is unavoidable.


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    Title :

    Operating point optimizer for integrated diesel/CVT powertrain


    Additional title:

    Optimierung des Betriebsbereichs eines integrierten Antriebstrangs bestehend aus Dieselmotor und stufenlos verstellbarem Getriebe


    Contributors:
    Deacon, M. (author) / Horrocks, R.W. (author) / Brace, C.J. (author) / Vaughan, N.D. (author)


    Publication date :

    1996


    Size :

    8 Seiten, 6 Bilder, 2 Tabellen, 3 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English