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Dynamic Modeling and Control of a Throttle Valve in Spark Ignition Internal Combustion Engines

[+] Author Affiliations
Firooz Bakhtiari-Nejad, Mirkamal Seyyedrasuly, Mostafa Mirsalim

Amirkabir University of Technology, Tehran, Iran

Paper No. IMECE2017-72530, pp. V04AT05A036; 9 pages
  • ASME 2017 International Mechanical Engineering Congress and Exposition
  • Volume 4A: Dynamics, Vibration, and Control
  • Tampa, Florida, USA, November 3–9, 2017
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5837-0
  • Copyright © 2017 by ASME


Throttle valve regulates the amount of intake air to SI engines. Due to continued progress in automotive engineering and need of fine-tuning of the amount of air entering the engine, electronic throttle is very important and is designed and has been used in past decay. Accurate control of electronic is crucial for good performance of engine. A good model and precise identification is needed for accurate control. In this research a dynamic model has been derived and parameters of model is obtained experimentally. The measured parameters are tuned by trial and error using PWM for real throttle. In the proposed model, almost all of the Phenomena including presliding except the backlash effect in the home return have been considered. Throttle position is controlled using a model reference adaptive control named Computed Torque and results are presented and described. For this study EF7 electric throttle is used as a case study.

Copyright © 2017 by ASME



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