This paper presents system identification methods of using both frequency and time domain analyses to estimate system parameters for a nonlinear electrohydraulic (E/H) tractor steering system. The frequency domain method identified parameters of the system using a linear model with a nonlinear gain function. The time domain method identified those parameters using a discrete time expression. A method of multiple models was used to represent the nonlinear system for both frequency and time domain analyses. Simulation and test results showed that the modified identification method could satisfactorily identify the parameters of the nonlinear E/H tractor steering system.


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    Title :

    System Identification of an Electrohydraulic Steering System


    Additional title:

    Sae Technical Papers


    Contributors:
    Wu, Duqiang (author) / Qiu, Hongchu (author) / Reid, John (author) / Zhang, Qin (author)

    Conference:

    International Off-Highway & Powerplant Congress & Exposition ; 1999



    Publication date :

    1999-09-14




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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