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Experimental Study on Digital Brake Control for Maglev Trains
Technical Paper
964290
Sector:
Language:
English
Abstract
As a back-up brake system for Japanese MAG-LEV trains in case of
the normal electric brake failure, carbon-carbon composite brake
units are going to be used. In case of train brake, the
equalization of absorbed energy into each brake unit needs to be
considered from the viewpoints of unit capacity and disc wear
life.
This report explains the torque limit control to get the energy
equalization among numerous brake units in the train. As the first
step, the dynamometer test using two brake units has been done to
understand the torque behavior when having multiple brake units. As
the next step, simulation study using MAT-LAB has been done to
incorporate the experimentally obtained torque behavior appear in a
computer calculation. The results show that the torque of two brake
units tends to diverge due to the tire radius difference and the
simulation can predict this behavior.