Linear optimal preview control theory is applied to severe braking of a car, providing an extension of work already reported. A new technique is developed to prepare equilibrium running states for a braking vehicle, from which linearized, small-perturbation models can be constructed, with sets of optimal preview controls following. Simulations of straight-line manoeuvres with near-limit decelerations demanded are conducted, first, with linear interpolation of trim states and control gains according to car speed and, second, with bilinear interpolation according to car speed and deceleration. A special procedure is required to compute the preview controls in the latter case. Bilinear gain scheduling over speed and deceleration is shown to give excellent tracking and tyre-force utilization in very challenging circumstances, giving substantial advantage with respect to the alternative simpler scheme.


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    Titel :

    Application of linear optimal preview control theory to severe braking of a car


    Weitere Titelangaben:

    Anwendung der Regelungstheorie mit linearer optimaler Vorausberechnung auf das starke Bremsen eines Autos


    Beteiligte:
    Sharp, R.S. (Autor:in)


    Erscheinungsdatum :

    2011


    Format / Umfang :

    10 Seiten, 17 Bilder, 16 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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