METHOD OF DECREASING LATERAL PRESSURE IN RAILROAD VEHICLE

Title:

METHOD OF DECREASING LATERAL PRESSURE IN RAILROAD VEHICLE

Document Type and Number:

WIPO Patent Application WO/2015/030061

Kind Code:

A1

Abstract:

An actuator is installed between a vehicle body of a vehicle mounted with a bolsterless carriage, for example, and a carriage frame. A sensor is installed on at least one of the vehicle body, the carriage, and a wheelset. Based on a state quantity acquired by the sensor during travel, one or a plurality of parameters having a correlation with steady lateral pressure is computed, and a thrust command value for the actuator is determined by applying a predetermined transmission function to the computed value. At the same time, one or a plurality of parameters having a correlation with a variable lateral pressure is computed, and a thrust command value for the actuator is determined by applying a predetermined transmission function to the computed value. Thereafter, the two thrust command values are combined to determine a thrust that the actuator is caused to generate. Because the maximum lateral pressure generated during travel can be effectively decreased, an increase in the maximum travel speed can be achieved.

Inventors:

MIZUNO MASAAKI (JP)
GOTO OSAMU (JP)
KIKKO SATOSHI (JP)
NAKAI TAKUJI (JP)

Application Number:

PCT/JP2014/072450

Publication Date:

March 05, 2015

Filing Date:

August 27, 2014

Export Citation:

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Assignee:

NIPPON STEEL & SUMITOMO METAL CORP (JP)

International Classes:

B61F5/44

Foreign References:

JP2007186126A	2007-07-26
JPH09226576A	1997-09-02
EP2517943A1	2012-10-31
JP2002087262A	2002-03-27
JP2004161115A	2004-06-10
JP2012166733A	2012-09-06

Other References: