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Author: search.filters.author.Sooraksa, PitikhateSubject: search.filters.subject.nonlinear control

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    On practical control of electronic throttle body
    (2012-12-01)
    Jansri, Anurak
    ;
    Pongsuttiyakorn, Thadchapong
    ;
    Sooraksa, Pitikhate
    An electronic throttle body is a nonlinear device that includes effects on dead time, transmission friction, throttle plate friction and return spring limp-home. The effects are problem to precisely control of electronic throttle regulation. In recent year, various control designs have been proposed. This paper presents a simple yet effective nonlinear controller to enhance the regulator. The regulator is embedded using a discrete fuzzy PI algorithm, provided easy tuning, robustness and rapid development with simple architecture. The effects are also in consideration. The experiment results are carried out and show satisfactory performance using standard criteria such as an integral of absolute error (ITAE), an integral of square error (ISE) and a mean absolute error (MAE). © 2012 IEEE.
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    Simple nonlinear air to fuel ratio control for spark ignition engines
    (2012-07-30)
    Jansri, Anurak
    ;
    Sooraksa, Pitikhate
    Development of a mathematical model of air to fuel ratio and control for SI engines has been proposed in various themes to satisfy technical specification. This paper reveals a simple yet effective nonlinear control to enhance the regulator. The mean value engine model (MVEM) is employed and enhanced to validate the effectiveness of the proposed scheme. The regulator is designed using a discrete fuzzy PI algorithm, provided easy tuning, robustness, and rapid development with simple architecture. Effects on dead time, exhausted delay, and chaotic disturbance are also included. The simulation results show satisfactory performance using standard criteria such as an integral of absolute error (ITAE), an integral of square error (ISE) and an integral of absolute control output (IACO) and a mean absolute error (MAE). © 2012 IEEE.