Optimal control theory can be used to generate aggressive maneuvers for vehicles under a variety of conditions using minimal assumptions. Although optimal control provides a very powerful framework for generating aggressive maneuvers utilizing fully nonlinear vehicle and tire models, its use in practice is hindered by the lack of guarantees of convergence, and by the typically long time to generate a solution, which makes this approach unsuitable for real-time implementation unless the problem obeys certain convexity and/or linearity properties. In this paper, we investigate the use of statistical interpolation (e.g., kriging) in order to synthesize on-the-fly near-optimal feedback control laws from pre-computed optimal solutions. We apply this methodology to the challenging scenario of generating a minimum time yaw rotation maneuver of a speeding vehicle in order to change its posture prior to a collision with another vehicle, in an effort to remedy the effects of a head on collision. It is shown that this approach offers a potentially appealing option for real-time, near-optimal, robust trajectory generation.


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    Title :

    Real-Time Near-Optimal Feedback Control of Aggressive Vehicle Maneuvers


    Contributors:
    P. Tsiotras (author) / R. Sanz-Diaz (author)

    Publication date :

    2014


    Size :

    23 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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