Railway vehicle vibration damping device

Patent metadata

Field	Value
Publication number	US-8948941-B2
Application number	US-201314346912-A
Country	US
Kind code	B2
Filing date	Mar 13, 2013
Priority date	Mar 14, 2012
Publication date	Feb 3, 2015
Grant date	Feb 3, 2015

Abstract

A railway vehicle vibration damping device having at least two vibration suppression force generating sources interposed between a bogie and a vehicle body of a railway vehicle extracts from a transverse direction velocity of the vehicle body a frequency component at or above a frequency of a centrifugal acceleration of the vehicle body, and calculates a high frequency vibration suppression force on the basis thereof. When the railway vehicle travels in a curve section, at least a part of the vibration suppression force generating sources is caused to output the high frequency vibration suppression force, and the remaining vibration suppression force generating sources are caused to function as passive dampers. As a result, passenger comfort in the railway vehicle during travel in a curve section is improved.

First claim

The embodiment of this invention in which an exclusive property or privilege is claimed are defined as follows:

1. A railway vehicle vibration damping device comprising:
at least two vibration suppression force generating sources interposed between a bogie and a vehicle body of a railway vehicle;
a sensor that detects a transverse direction velocity of the vehicle body; and
a programmable controller programmed to:
extract from the transverse direction velocity of the vehicle…

Assignees

• Kayaba Industry Co Ltd

Inventors

• Ogawa Takayuki

Classifications

• F16F2228/04

  Mechanical Engineering · mapped topic

• B61F5/12 Primary

  Operations & Transport · mapped topic

• B61F5/245

  Operations & Transport · mapped topic

• F15B2211/5159

  Mechanical Engineering · mapped topic

• F15B2211/3058

  Mechanical Engineering · mapped topic