On Dynamic Analyses of Rail Vehicles With Electronically Controlled Suspensions

Stribersky, Anton; Steidl, Siegbert; Müller, Herbert; Rath, Bernhard

doi:10.1080/00423119608969224

Cited by 11 publications

(8 citation statements)

References 2 publications

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“…Train speed increases through the curve, resulting in the reduction of journey times. From a practical viewpoint, active control is used to perform the tilting action and active tilting train systems is an area whereby control engineering has been a major contributor to modern train vehicle technology (Pearson, Goodall, & Pratt, 1998;Stribersky, Steidl, Müller, & Rath, 1996). Nowadays a large number of modern high-speed trains incorporate a form of tilt (Fröidh, 2008;Iwnicki, 2006;Vickerman, 1997).…”

Section: Introductionmentioning

confidence: 99%

Optimised PID control for tilting trains

Hassan

Zolotas

Margetts

2017

Systems Science & Control Engineering

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Nulling-type tilt control in tilting railway vehicles, i.e. Single-Input-Single-Output (SISO) control using non-precedent sensor information for lateral acceleration and tilt angle, suffers from performance limitations due to the system's non-minimum phase characteristics . Advanced control strategies for tilting railway vehicles. UKACC international conference on control, University of Cambridge, Cambridge, UK. 6p., ISBN: 0-85296-240-1.]. From an engineering point of view, this is due to the suspension's dynamic interactions and the sensor information used for feedback control. This paper revisits SISO PID-based nulling-type tilt control design (hereby referred to as 'economical tilt control') and rigorously studies its design via optimization to improve system performance. The strong coupling between the roll and lateral dynamic modes of the vehicle body is shown and the performance limitations using conventional control highlighted. PID controllers are designed to illustrate different levels of tilt performance regarding the deterministic (curving acceleration response) and stochastic (ride quality) with the latter being a bounded constraint. With novel contribution to use of PID control in the tilt control application with rational transfer functions, particular emphasis is placed on the practical aspects of the tilt dynamics within the design framework via detailed simulation results. ARTICLE HISTORY

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Section: Introductionmentioning

confidence: 99%

Optimised PID control for tilting trains

Hassan

Zolotas

Margetts

2017

Systems Science & Control Engineering

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“…In the mid of the 1990s, Siemens in Austria performed field tests on a prototype vehicle where tilting, lateral centring, and lateral and vertical semi-active technologies were put together [70][71][72]. The integrated active control strategy improved the overall dynamic performance.…”

Section: Implementation Of Active Secondary Suspension In Lateral Dirmentioning

confidence: 99%

“…At around the same time, Austria Siemens carried out field tests for semi-active suspension [70][71][72]. Two lateral and two vertical hydraulic dampers with continuously adjustable damping valves were mounted on the vehicle in addition to the electro-mechanical tilting and pneumatic lateral positioning devices on the prototype bogie SF 600.…”

Section: Implementation Of Semi-active Suspensionmentioning

confidence: 99%

Active suspension in railway vehicles: a literature survey

Giossi

Persson

et al. 2020

Rail. Eng. Science

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Since the concept of active suspensions appeared, its large possible benefits has attracted continuous exploration in the field of railway engineering. With new demands of higher speed, better ride comfort and lower maintenance cost for railway vehicles, active suspensions are very promising technologies. Being the starting point of commercial application of active suspensions in rail vehicles, tilting trains have become a great success in some countries. With increased technical maturity of sensors and actuators, active suspension has unprecedented development opportunities. In this work, the basic concepts are summarized with new theories and solutions that have appeared over the last decade. Experimental studies and the implementation status of different active suspension technologies are described as well. Firstly, tilting trains are briefly described. Thereafter, an indepth study for active secondary and primary suspensions is performed. For both topics, after an introductory section an explanation of possible solutions existing in the literature is given. The implementation status is reported. Active secondary suspensions are categorized into active and semi-active suspensions. Primary suspensions are instead divided between acting on solid-axle wheelsets and independently rotating wheels. Lastly, a brief summary and outlook is presented in terms of benefits, research status and challenges. The potential for active suspensions in railway applications is outlined.

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“…Tilting trains is a worldwide accepted technology concept in high speed railway transportation. It has been successfully established as a part of modern railway vehicle technology with many high-speed train services worldwide fitted with tilt [1][2][3] and an increasing interest for regional express trains as well as recently attempt to apply in metro systems [4]. The tilting concept is quite straightforward whereby usually a tilting mechanism (that is inverted pendulum-like platform) is employed to (mostly actively) lean the vehicle body inwards on track corners hence reducing the lateral acceleration level experienced by passengers.…”

Section: Introductionmentioning

confidence: 99%

H∞ mixed sensitivity optimization for high speed tilting trains

Hassan¹,

Zolotas²,

Shah³

2020

Bulletin EEI

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The industrial norm of tilting high speed trains, nowadays, is that of Precedence tilt (also known as Preview tilt). Precedence tilt, although succesfull as a concept, tends to be complex (mainly due to the signal interconnections between vehicles and the advanced signal processing required for monitoring). Research studies of early prior to that of precedence tilt schemes, i.e. the so-called Nulling-type schemes, utilized local-per-vehicle signals to provide tilt action (this was essentially a typical disturbance rejection-scheme) but suffered from inherent delays in the control). Nulling tilt may still be seen as an important research aim due to the simple nature and most importantly due to the more straightforward fault detection compared to precedence schemes. The work in this paper presents a substantial extension conventional to robust H∞ mixed sensitivity nulling tilt control in literature. A particular aspect is the use of optimization is used in the design of the robust controller accompanied by rigorous investigation of the conflicting deterministic/stochastic local tilt trade-off

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On Dynamic Analyses of Rail Vehicles With Electronically Controlled Suspensions

Cited by 11 publications

References 2 publications

Optimised PID control for tilting trains

Optimised PID control for tilting trains

Active suspension in railway vehicles: a literature survey

H∞ mixed sensitivity optimization for high speed tilting trains

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