ABSTRACT To improve the responsiveness of engine speed control to disturbances, robust controls were investigated by simulation. The intake air control system of a gasoline engine is a typical nonlinear system, and the disturbances and parameter perturbations are generally regarded as being the unstable factors with regard to engine control. In this paper, a Mean-Value Engine Model (MVEM) with disturbances and parameter perturbations is investigated using Sliding Mode Control (SMC), which is a form of variable structure control, with a view to address instability in the idle speed control process. The simulation results confirmed that, compared with a conventional PI (Proportional-Integral) controller, the stability of the idle speed for an engine that is being subjected to disturbances, parameter variations and background noise is greatly improved by the application of SMC.
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nullY. ZHANG, N. KURIHARA and H. YAMAGUCHI, "Responsiveness Improvement of Idling Speed Control for Automotive Using SMC," Journal of Software Engineering and Applications, Vol. 2 No. 5, 2009, pp. 309-315. doi: 10.4236/jsea.2009.25040.
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