Robust system state estimation for active suspension control in high-speed tilting trains

Zhou, Ronghui, Zolotas, Argyrios and Goodall, Roger (2014) Robust system state estimation for active suspension control in high-speed tilting trains. Vehicle System Dynamics, 52 (Supp 1). pp. 355-369. ISSN 0042-3114

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Abstract

The interaction between the railway vehicle body roll and lateral dynamics substantially influences the tilting system performance in high-speed tilting trains, which results in a potential poor ride comfort and high risk of motion sickness. Integrating active lateral secondary suspension into the tilting control system is one of the solutions to provide a remedy to roll–lateral interaction. It improves the design trade-off for the local tilt control (based only upon local vehicle measurements) between straight track ride comfort and curving performance. Advanced system state estimation technology can be applied to further enhance the system performance, i.e. by using the estimated vehicle body lateral acceleration (relative to the track) and true cant deficiency in the configuration of the tilt and lateral active suspension controllers, thus to further attenuate the system dynamics coupling. Robust H-inf filtering is investigated in this paper aiming to offer a robust estimation (i.e. estimation in the presence of uncertainty) for the required variables, In particular, it can minimise the maximum estimation error and thus be more robust to system parametric uncertainty. Simulation results illustrate the effectiveness of the proposed schemes.

Item Type: Article
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Subjects: H Social Sciences > HE Transportation and communications
T Technology > T Technology (General) > T0055.4 Industrial engineering. Management engineering > T0057 Applied mathematics. Quantitative methods
T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General) > TA0329 Engineering mathematics. Engineering analysis
T Technology > TJ Mechanical engineering and machinery > TJ0212 Control engineering systems. Automatic machinery (General)
Depositing User: Argyrios Zolotas
Date Deposited: 09 Apr 2014 13:38
Last Modified: 14 Aug 2014 15:43
URI: http://sro.sussex.ac.uk/id/eprint/48163
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