The steady-state cornering behaviour of rear-wheel drive vehicles fitted with locked differential is critically analysed by means of simple, albeit carefully formulated, vehicle models, which allow for a rigorous theoretical analysis. Results obtained for some classical manoeuvres, with either constant forward speed, steer angle or turning radius, clearly show that, in the case of locked differential, the vehicle cornering behaviour is strongly affected by the manoeuvre. As an important consequence, the handling diagram is not unique and the understeer gradient is no longer dependent only upon the lateral acceleration, as in vehicles equipped with an open differential. Accordingly, this study shows that some typical tools and concepts of vehicle dynamics are indeed inadequate in the case of locked differential.


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    Title :

    Critical review of handling diagram and understeer gradient for vehicles with locked differential


    Additional title:

    Kritische Betrachtung des Fahrverhaltens und Untersteuerungsgradienten bei Fahrzeugen mit gesperrtem Differenzial


    Contributors:

    Published in:

    Vehicle System Dynamics ; 44 , 6 ; 431-447


    Publication date :

    2006


    Size :

    17 Seiten, 26 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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    Frendo,F. / greco,G. / Guiggiani,M. et al. | Automotive engineering | 2006



    Critical review of handling diagram and understeer gradient for vehicles with locked differential

    Frendo, Francesco / Greco, Giordano / Guiggiani, Massimo | Taylor & Francis Verlag | 2006


    Oversteer/Understeer Characteristics of a Locked Differential

    Metz, L. Daniel / Hopkins, Patrick | SAE Technical Papers | 1994


    Oversteer/understeer characteristics of a locked differential

    Hopkins,P. / Metz,L.D. / Univ.of Illinois at Urbana-Champaign,US | Automotive engineering | 1994