Development of gasoline direct injector using giant magnetostrictive materials

Mojtaba Ghodsi, Nasser Hosseinzadeh, Abdullah Özer, Hamid Rajabzadeh Dizaj, Yousef Hojjat, Nader Garjasi Varzeghani, Mohammad Reza Sheykholeslami, Soheil Talebian, Mohammad Hadi Ghodsi, Amer Al-Yahmadi

Research output: Contribution to journalArticlepeer-review


This paper presents a conceptual design and control of a novel gasoline direct injector (GDI) using giant magnetostricitve material, Terfenol-D, as an actuation component. Electromagnetic
and fluid analyses are accomplished to investigate the influence of some parameters, such as nozzle length, pressure of input fuel, and cone angle of injector’s needle. Experimental results obtained from fabricated GDI show good agreement with the numerical results provided by the 3-D finite-element analysis. Furthermore, the fabricated GDI is controlled by fuzzy and PID controllers. It was shown that fuzzy controllers provide faster response with less accuracy compared to the PID controller. Consequently, there is a tradeoff between fast response and steady-state error for selecting the propoer controller.
Original languageEnglish
Pages (from-to)521-529
Number of pages9
JournalIEEE Transactions on Industry Applications
Issue number1
Early online date7 Sept 2016
Publication statusPublished - 1 Jan 2017


  • Finite-element method
  • fuzzy
  • gasoline direct injector (GDI)
  • magnetostriction
  • Terfenol-D


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