Browsing by Subject "Simulation model"

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    Macroeconometric modelling and Pakistan's economy. A vector autoregression approach
    (1992) Chishti, S. U.; Hasan, M. A.; Mahmud, S. F.
    Recent applications of the Vector Autoregression (VAR) technique pioneered by Sims, Litterman and Doan has become popular in macroeconomic modelling, particularly when knowledge about 'true' structural relations is absent. This study represents the first attempt to apply such a technique to Pakistani data for ten key macroeconomic variables. Unlike some of the earlier studies on Pakistan's economy our empirical results are intuitive and consistent with the predictions of the standard new neoclassical model. More importantly, based on these results, perhaps, one may also shed light on some of the dominant recurring macroeconomic issues of Pakistan's economy. © 1992.
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    Model-in-the-loop development for fuel cell vehicle
    (IEEE, 2011) Çakmakçı, Melih; Li, Y.; Liu, S.
    In this paper, the work on developing and validating a model-in-the-loop (MIL) simulation environment for a group of prototype fuel cell vehicles is presented. The MIL model consists of a vehicle plant model and an integrated vehicle system controller model. First, the vehicle simulation plant model is functionally validated with a simple vehicle system controller (VSC) model and then improved to satisfy the input output interface and fidelity requirements. The developed MIL system is then verified for basic functionality against the simple VSC controller model and shows uniform correlation results. It is further validated against vehicle dynamometer test data and demonstrates satisfactory consistency. A rapid model building approach which is suitable for model-based controller design process was also discussed. This approach enabled the developers to use model-to-code algorithms unlike many comparable simulation models. © 2011 AACC American Automatic Control Council.