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(11) | EP 2 020 356 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Vibration suppression device for railway vehicle |
| (57) A vibration suppression device that suppresses vibration in a railway vehicle 1 includes
a damper 9 having a variable damping force, which extends and compresses in accordance
with lateral vibration of a vehicle body 10 relative to a bogie 3, first control means
that control the damping force of the damper 9 using sky-hook semi-active control
in order to suppress the lateral vibration of the vehicle body 10, vertical direction
acceleration detecting means 15 that detect acceleration in a vertical direction of
the vehicle body 10, determining means that determine whether or not lateral vibration
has occurred in the bogie 3 on the basis of the acceleration detected by the vertical
direction acceleration detecting means 15, second control means that cause the damper
9 to operate so as to suppress the lateral vibration of the bogie (3), and switching
control means that switch from the first control means to the second control means
when lateral vibration is determined to have occurred in the bogie 3.
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