Output tracking in first-order time-delay systems

A dynamic control approach

Behrouz Ebrahimi, Karolos Grigoriadis, Matthew Franchek, Reza Tafreshi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Output tracking of systems, which are represented through a surrogate first-order model with a delay in the control input, is examined in this paper. A dynamic control input is proposed to maintain the system output to track a desired reference profile, while providing closed-loop stability. The system closed-loop response is demonstrated for fueling control in lean-burn gasoline spark ignition engines addressing the varying transport and combustion delays. The developed methodology, which is validated on a Ford F-150 SI lean-burn engine model with large time-varying delay in the control loop, exhibits improved performance in terms of disturbance attenuation, measurement noise accommodation and robustness against delay estimation anomalies. The proposed controller is compared with a PI controller equipped with a Smith predictor and the results are discussed for various operating conditions.

Original languageEnglish
Pages (from-to)269-274
Number of pages6
JournalIFAC-PapersOnLine
Volume28
Issue number12
DOIs
Publication statusPublished - 1 Jul 2015

Fingerprint

Time delay
Controllers
Fueling
Internal combustion engines
Robustness (control systems)
Closed loop systems
Gasoline
Engines

Keywords

  • Dynamic control
  • Lean-burn engine
  • Output tracking
  • Time-delay system

ASJC Scopus subject areas

  • Control and Systems Engineering

Cite this

Output tracking in first-order time-delay systems : A dynamic control approach. / Ebrahimi, Behrouz; Grigoriadis, Karolos; Franchek, Matthew; Tafreshi, Reza.

In: IFAC-PapersOnLine, Vol. 28, No. 12, 01.07.2015, p. 269-274.

Research output: Contribution to journalArticle

Ebrahimi, Behrouz ; Grigoriadis, Karolos ; Franchek, Matthew ; Tafreshi, Reza. / Output tracking in first-order time-delay systems : A dynamic control approach. In: IFAC-PapersOnLine. 2015 ; Vol. 28, No. 12. pp. 269-274.
@article{7c0abcca33f04a039e360e1f5a1ed5e1,
title = "Output tracking in first-order time-delay systems: A dynamic control approach",
abstract = "Output tracking of systems, which are represented through a surrogate first-order model with a delay in the control input, is examined in this paper. A dynamic control input is proposed to maintain the system output to track a desired reference profile, while providing closed-loop stability. The system closed-loop response is demonstrated for fueling control in lean-burn gasoline spark ignition engines addressing the varying transport and combustion delays. The developed methodology, which is validated on a Ford F-150 SI lean-burn engine model with large time-varying delay in the control loop, exhibits improved performance in terms of disturbance attenuation, measurement noise accommodation and robustness against delay estimation anomalies. The proposed controller is compared with a PI controller equipped with a Smith predictor and the results are discussed for various operating conditions.",
keywords = "Dynamic control, Lean-burn engine, Output tracking, Time-delay system",
author = "Behrouz Ebrahimi and Karolos Grigoriadis and Matthew Franchek and Reza Tafreshi",
year = "2015",
month = "7",
day = "1",
doi = "10.1016/j.ifacol.2015.09.389",
language = "English",
volume = "28",
pages = "269--274",
journal = "IFAC-PapersOnLine",
issn = "2405-8963",
publisher = "IFAC Secretariat",
number = "12",

}

TY - JOUR

T1 - Output tracking in first-order time-delay systems

T2 - A dynamic control approach

AU - Ebrahimi, Behrouz

AU - Grigoriadis, Karolos

AU - Franchek, Matthew

AU - Tafreshi, Reza

PY - 2015/7/1

Y1 - 2015/7/1

N2 - Output tracking of systems, which are represented through a surrogate first-order model with a delay in the control input, is examined in this paper. A dynamic control input is proposed to maintain the system output to track a desired reference profile, while providing closed-loop stability. The system closed-loop response is demonstrated for fueling control in lean-burn gasoline spark ignition engines addressing the varying transport and combustion delays. The developed methodology, which is validated on a Ford F-150 SI lean-burn engine model with large time-varying delay in the control loop, exhibits improved performance in terms of disturbance attenuation, measurement noise accommodation and robustness against delay estimation anomalies. The proposed controller is compared with a PI controller equipped with a Smith predictor and the results are discussed for various operating conditions.

AB - Output tracking of systems, which are represented through a surrogate first-order model with a delay in the control input, is examined in this paper. A dynamic control input is proposed to maintain the system output to track a desired reference profile, while providing closed-loop stability. The system closed-loop response is demonstrated for fueling control in lean-burn gasoline spark ignition engines addressing the varying transport and combustion delays. The developed methodology, which is validated on a Ford F-150 SI lean-burn engine model with large time-varying delay in the control loop, exhibits improved performance in terms of disturbance attenuation, measurement noise accommodation and robustness against delay estimation anomalies. The proposed controller is compared with a PI controller equipped with a Smith predictor and the results are discussed for various operating conditions.

KW - Dynamic control

KW - Lean-burn engine

KW - Output tracking

KW - Time-delay system

UR - http://www.scopus.com/inward/record.url?scp=84954191387&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84954191387&partnerID=8YFLogxK

U2 - 10.1016/j.ifacol.2015.09.389

DO - 10.1016/j.ifacol.2015.09.389

M3 - Article

VL - 28

SP - 269

EP - 274

JO - IFAC-PapersOnLine

JF - IFAC-PapersOnLine

SN - 2405-8963

IS - 12

ER -