Active suspension for a two-axle railway vehicle

Alessandro Pacchioni, Roger M. Goodall, Stefano Bruni

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The aim of this paper is to investigate how the ride quality of a two-axle railway vehicle with single-stage suspension might be improved by the use of active control, compensating for the lack of the double suspension stage, and thereby taking full advantage of vehicle lightweight construction. The basic requirement is to improve the ride quality on random track unevenness while keeping suspension deflection within acceptable levels when the vehicle negotiates deterministic track features such as a gradient. Two active suspension configurations are considered - skyhook damping and linear quadratic Gaussian (LQG) optimal control. Finally, actuator dynamics are included in the analysis, to assess the impact on the overall success of an active suspension implementation. The paper shows that both skyhook and LQG control strategies offer significant improvements in ride quality and also that careful design of the actuators and their force control loops is essential.

LanguageEnglish
Pages105-120
Number of pages16
JournalVehicle System Dynamics
Volume48
Issue numberSUPPL. 1
DOIs
Publication statusPublished - 2010
Externally publishedYes

Fingerprint

Axles
Actuators
Force control
Damping

Cite this

Pacchioni, Alessandro ; Goodall, Roger M. ; Bruni, Stefano. / Active suspension for a two-axle railway vehicle. In: Vehicle System Dynamics. 2010 ; Vol. 48, No. SUPPL. 1. pp. 105-120.
@article{66bd415e828a47d2850b7db69abd7322,
title = "Active suspension for a two-axle railway vehicle",
abstract = "The aim of this paper is to investigate how the ride quality of a two-axle railway vehicle with single-stage suspension might be improved by the use of active control, compensating for the lack of the double suspension stage, and thereby taking full advantage of vehicle lightweight construction. The basic requirement is to improve the ride quality on random track unevenness while keeping suspension deflection within acceptable levels when the vehicle negotiates deterministic track features such as a gradient. Two active suspension configurations are considered - skyhook damping and linear quadratic Gaussian (LQG) optimal control. Finally, actuator dynamics are included in the analysis, to assess the impact on the overall success of an active suspension implementation. The paper shows that both skyhook and LQG control strategies offer significant improvements in ride quality and also that careful design of the actuators and their force control loops is essential.",
keywords = "Active suspension, Railway suspension, Ride comfort",
author = "Alessandro Pacchioni and Goodall, {Roger M.} and Stefano Bruni",
year = "2010",
doi = "10.1080/00423111003668252",
language = "English",
volume = "48",
pages = "105--120",
journal = "Vehicle System Dynamics",
issn = "0042-3114",
publisher = "Taylor and Francis Ltd.",
number = "SUPPL. 1",

}

Active suspension for a two-axle railway vehicle. / Pacchioni, Alessandro; Goodall, Roger M.; Bruni, Stefano.

In: Vehicle System Dynamics, Vol. 48, No. SUPPL. 1, 2010, p. 105-120.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Active suspension for a two-axle railway vehicle

AU - Pacchioni, Alessandro

AU - Goodall, Roger M.

AU - Bruni, Stefano

PY - 2010

Y1 - 2010

N2 - The aim of this paper is to investigate how the ride quality of a two-axle railway vehicle with single-stage suspension might be improved by the use of active control, compensating for the lack of the double suspension stage, and thereby taking full advantage of vehicle lightweight construction. The basic requirement is to improve the ride quality on random track unevenness while keeping suspension deflection within acceptable levels when the vehicle negotiates deterministic track features such as a gradient. Two active suspension configurations are considered - skyhook damping and linear quadratic Gaussian (LQG) optimal control. Finally, actuator dynamics are included in the analysis, to assess the impact on the overall success of an active suspension implementation. The paper shows that both skyhook and LQG control strategies offer significant improvements in ride quality and also that careful design of the actuators and their force control loops is essential.

AB - The aim of this paper is to investigate how the ride quality of a two-axle railway vehicle with single-stage suspension might be improved by the use of active control, compensating for the lack of the double suspension stage, and thereby taking full advantage of vehicle lightweight construction. The basic requirement is to improve the ride quality on random track unevenness while keeping suspension deflection within acceptable levels when the vehicle negotiates deterministic track features such as a gradient. Two active suspension configurations are considered - skyhook damping and linear quadratic Gaussian (LQG) optimal control. Finally, actuator dynamics are included in the analysis, to assess the impact on the overall success of an active suspension implementation. The paper shows that both skyhook and LQG control strategies offer significant improvements in ride quality and also that careful design of the actuators and their force control loops is essential.

KW - Active suspension

KW - Railway suspension

KW - Ride comfort

UR - http://www.scopus.com/inward/record.url?scp=78649733311&partnerID=8YFLogxK

U2 - 10.1080/00423111003668252

DO - 10.1080/00423111003668252

M3 - Article

VL - 48

SP - 105

EP - 120

JO - Vehicle System Dynamics

T2 - Vehicle System Dynamics

JF - Vehicle System Dynamics

SN - 0042-3114

IS - SUPPL. 1

ER -