This paper presents experimental investigation results of an electric variable valve timing (EVVT) actuator using linear parameter varying (LPV) system identification and control. For the LPV system identification, a number of local system identification tests were carried out to obtain a family of linear time-invariant (LTI) models at fixed engine speed and battery voltage. Using engine speed and battery voltage as time-varying scheduling parameters, the family of local LTI models is translated into a single LPV model. Then, a robust gain-scheduling (RGS) dynamic output-feedback (DOF) controller with guaranteed performance was synthesized and validated experimentally. In contrast to the vast majority of gain-scheduling literature, scheduling parameters are assumed to be polluted by measurement noises and the engine speed and battery voltage are modeled as noisy scheduling parameters. Experimental and simulation results show the effectiveness of the developed approach.
Experimental Study on an Electric Variable Valve Timing Actuator: Linear Parameter Varying Modeling and Control
Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received May 14, 2016; final manuscript received March 10, 2017; published online June 28, 2017. Assoc. Editor: Mazen Farhood.
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Al-Jiboory, A. K., Zhu, G. G., and Zhang, S. (June 28, 2017). "Experimental Study on an Electric Variable Valve Timing Actuator: Linear Parameter Varying Modeling and Control." ASME. J. Dyn. Sys., Meas., Control. October 2017; 139(10): 101011. https://doi.org/10.1115/1.4036539
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