Engine idle speed control using actuator saturation

Paul Herman, Matthew A. Franchek

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Presented in this paper is the design and experimental validation of a saturating engine idle speed controller for a Ford V-8 fuel injected engine. The nonmeasurable external torque disturbance perturbing engine speed is delivered from the power steering pump. The performance specification is an allowable engine speed tolerance of 140 r/min about a desired set speed of 600 r/min. The controlled input is a voltage to the bypass air valve (BPAV) which regulates the air ingested into the engine. The BPAV voltage available for engine speed regulation is bounded by 0.8 V. A frequency domain controller design methodology is used to design the controller. The performance objective is satisfied using saturation control during large engine speed transients. During steady-state operation, the controlled input is not saturated.

Original languageEnglish (US)
Pages (from-to)192-199
Number of pages8
JournalIEEE Transactions on Control Systems Technology
Issue number1
StatePublished - Jan 2000

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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