Recent Advancements in I.C. Engine Robust Speed Controllers

Paper #:
  • 971568

Published:
  • 1997-04-01
Citation:
Shah, M. and Franchek, M., "Recent Advancements in I.C. Engine Robust Speed Controllers," SAE Technical Paper 971568, 1997, https://doi.org/10.4271/971568.
Pages:
9
Abstract:
Presented in this paper is a nonlinear modeling and a controller design methodology for engine control. For illustrative purposes, the methodology is applied to the idle speed of a Ford 4.6L-2 valve V-8 fuel injected engine. The nonlinear model of the engine is based on a Hammerstein type model which is identified through input-output data without a priori knowledge of the engine dynamics. The nonlinear model is subsequently used in a frequency domain controller design methodology to achieve the performance goal of maintaining the engine idle speed within a prespecified asymmetric output tolerance despite external torque disturbances. An experimental verification of the proposed control law is included.
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