A fully instrumented orchard tractor equipped with an Auto Front-wheel-drive (Auto-FWD) management system and a SuperSteer steering system was tested in two different soils (Capay clay and Yolo loam), three different soil conditions (dry-tilled, wet-untilled, and wet-tilled) at two drawbar load levels (high and low) in two different modes of operation (positive and negative lead) to determine the effect of mode of operation on fuel efficiency. A theoretical model was developed based on the traction prediction equations developed at UC Davis to determine optimum operating configurations. Experimental results did not show significant difference in fuel efficiency between positive and negative lead modes of operation. The theoretical model indicated that optimum operating conditions resulted in slightly better tractive efficiency than the positive lead mode which in turn was slightly superior to negative lead mode. However, the theoretical differences were small and this was confirmed experimentally.


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    Titel :

    Modeling and verification of an auto front-wheel-drive system


    Beteiligte:
    Rosa, U.A. (Autor:in) / Upadhyaya, S.K. (Autor:in) / Chen, P. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2000


    Format / Umfang :

    7 Seiten, 5 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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