Performance enhancement of spark ignition engines by using fractional order controller

M. Zarghami, M. Babazadeh, Hassan Hossein Nia Kani

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

4 Citations (Scopus)


This paper presents an improved scheme of fractional PID controller applied to the torque control problem of spark ignition (SI) engines. The objectives are to produce a minimum torque tracking error while obtaining fewer fuel consumption during the process of combustion. This is then resulted to provide a fast and monotonic air flow response into the engine cylinders by adjusting the throttle and EGR plate angle and the cam timing. This consideration also pushes the engine to work in its safe operational condition, avoiding from both knocking and misfiring damage. Afterwards, a preliminary investigation to obtain maximum efficiency is conducted on the idea of exploiting Genetic Algorithm that is commonly used in parallel optimization of controller coefficients. Eventually, simulation results illustrate effectiveness of proposed scheme in comparison with classical PID controller method.

Original languageEnglish
Title of host publicationProceedings 2016 European Control Conference
EditorsA Rantzer, J Stoustrup, J Bagterp Jorgensen
Place of PublicationPiscataway, NJ, USA
ISBN (Electronic)9781509025916
Publication statusPublished - 2016
Event2016 European Control Conference, ECC 2016: 15th annual European Control Conference - Aalborg, Denmark
Duration: 29 Jun 20161 Jul 2016


Conference2016 European Control Conference, ECC 2016
Abbreviated titleECC'16
Internet address


  • genetic algorithm
  • Fractional order control
  • spark ignition engines
  • PI controller

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