Vehicle stability enhancement employing a new AODF method was presented. A cost function consisting of two terms was proposed. The first term aims at minimum workload of the tyres and, by means of the second term, the contribution of the DYC subsystem to an integrated vehicle control system can be adjusted. Another contribution of this research is to adapt the weighting coefficients in the cost function, which were assumed to be constant in earlier studies, so that the ASC and DYC subsystems are integrated in an optimal manner. In order to improve the practical aspects of the ODF mechanism, only the braking torque at the wheels is considered. The effectiveness of both the ODF method and its adaptation mechanism was investigated through digital simulations. The proposed control system utilizing either the AODF or the ODF method can successfully follow the desired yaw rate and sideslip angle. Compared with the performance of the vehicle employing the integrated control without any optimization method, obvious improvements are achieved. Furthermore, on employing the AODF method, the controller interference in the total speed of the vehicle has been reduced relative to the ODF method, i.e. the negative effect of the DYC system. The proposed controller is robust with respect to road conditions and non-linear characteristics of the tyre and vehicle dynamics.


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    Titel :

    Vehicle stability enhancement - an adaptive optimal approach to the distribution of tyre forces


    Beteiligte:
    Naraghi, M. (Autor:in) / Roshanbin, A. (Autor:in) / Tavasoli, A. (Autor:in)


    Erscheinungsdatum :

    2010


    Format / Umfang :

    11 Seiten, 16 Bilder, 1 Tabelle, 15 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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