Robust controller design and experimental verification of I.C. engine speed control

G. Kent Hamilton, Matthew Franchek

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


Presented in this paper is the robust idle speed control of a Ford 4·6 L V-8 fuel injected engine. The goal of this investigation is to design a robust feedback controller that maintains the idle speed within a 150 rpm tolerance about 600 rpm despite a 20 Nm step torque disturbance delivered by the power steering pump. The controlled input is the by-pass air valve which is subjected to an output saturation constraint. Issues complicating the controller design include the nonlinear nature of the engine dynamics, the induction-to-power delay of the manifold filling dynamics, and the saturation constraint of the by-pass air valve. An experimental verification of the proposed controller is included.

Original languageEnglish (US)
Pages (from-to)609-627
Number of pages19
JournalInternational Journal of Robust and Nonlinear Control
Issue number6
StatePublished - Jan 1 1997


  • Disturbance rejection
  • Internal combustion engines
  • Robust control

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics


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