Study of the nonlinear control techniques for single acting VGT pneumatic actuator

Laghrouche, Salah; Mehmood, Adeel; El Bagdouri, Muhammad

Abstract

In this paper, we have developed a detailed mathematical model of a pneumatic actuator for a Variable Geometry Turbocharger (VGT) equipped with an Electro-pneumatic Pressure Converter (EPC). This model may require complex calculations for control purpose; therefore the dynamics of the EPC have been neglected and replaced by a static gain. These models incorporate friction and aerodynamic force related effects by using adaptive LuGre model. To compensate for parametric uncertainties, two single-input single-output nonlinear position control laws are designed using the second order sliding mode (SMC) and backstepping control. A comparative study with experiments shows the effectiveness of the proposed controllers. Copyright © 2012 Inderscience Enterprises Ltd.

Citation

Laghrouche, S., Mehmood, A., & El Bagdouri, M. (2012). Study of the nonlinear control techniques for single acting VGT pneumatic actuator. International Journal of Vehicle Design, 60(3-4), 264-285. https://doi.org/10.1504/IJVD.2012.050084

• Journal Article Type: Article
• Acceptance Date: Aug 18, 2011
• Online Publication Date: Apr 23, 2013
• Publication Date: Jan 1, 2012
• Deposit Date: Jul 4, 2024
• Journal: International Journal of Vehicle Design
• Print ISSN: 0143-3369
• Publisher: Inderscience
• Peer Reviewed: Peer Reviewed
• Volume: 60
• Issue: 3-4
• Pages: 264-285
• DOI: https://doi.org/10.1504/IJVD.2012.050084
• Keywords: Mathematical modelling; Adaptive LuGre model; Sliding mode control; SMC; Twisting algorithm; Backstepping control; Nonlinear control; VGT pneumatic actuators; Variable geometry turbocharger; Electropneumatic pressure converter; EPC; Friction; Aerodynamics
• Public URL: https://hull-repository.worktribe.com/output/4732387