1,721,285 research outputs found
A Mechatronic Real-Time Model for Railway Vehicle Emulation
No full textThe Interoperability Technical Specification of European Railway led up the definition of new
standards to provide unified test procedures for all railway components. In particular, it is necessary to
perform traction and braking tests to verify the traction controller performance before entry into service.
To make less expensive and faster this procedures, which is carried out actually on real railway vehicles, a
new test bench, combining software with hardware in the loop, was developed. This paper presents the
new mechatronic real-time model of the railway vehicle used on this test bench to emulate the behaviour
of the real system
Emulazioni di veicoli ferroviari: un modello meccatronico real-time
No full textLa Specifica Tecnica di Interoperabilità tra le reti
ferroviarie europee ha portato alla definizione di
norme e procedure unificate per la verifica dei veicoli
ferroviari. In particolare, sono state previste prove
di trazione e frenatura in linea atte a valutare
le prestazioni dei controllori di trazione prima
dell’entrata in servizio dei veicoli ferroviari.
Tali prove utilizzano il veicolo ferroviario completo
e sono quindi costose e lunghe. Si propone un banco
prova innovativo che, emulando il comportamento
del veicolo ferroviario, esegue più velocemente
e in modo meno costoso le prove e si descrive il
modello meccatronico in tempo reale implementato
Hardware-in-the-loop overhead line emulator for active pantograph testing
No full textPantograph active control is considered as a means to improve the current collection quality in high-speed railways. Different studies have focused on the assessment of pantograph control systems, addressing actuator configurations and control strategies, mainly by means of numerical experiments. In the last few years, it has become possible to transfer the knowledge gained from numerical experiments to real operating conditions. Due to the high cost of on track tests, which are necessary for the final assessment of active pantograph performances, it is desirable to perform these tests on a system that has already demonstrated its capabilities with less expensive laboratory tests, in which at least the basic features of the real operating conditions are reproduced. This paper deals with the development of a hardware in the loop (HIL) test-rig, which allows the reproduction of the dynamical interaction between the overhead lines and pantograph in high speed railways. The HIL test-rig makes it possible to verify control strategies, the electrical drive configurations for active control, and the contact force estimation procedures on a real pantograph, under conditions similar to those encountered on the real line. Some examples of test bench applications for pantograph active control and contact force estimation are also presented
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