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Title:
RAILWAY VEHICLE VIBRATION SUPPRESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/171912
Kind Code:
A1
Abstract:
This railway vehicle vibration suppressing device (1) is provided with an actuator (A) which is interposed between a vehicle body (B) and a bogie (T) of a railway vehicle and which includes a motor (15) for driving a pump (12), a first solenoid on-off valve (9) provided in a first passage (8) providing communication between a rod-side chamber (5) and a piston-side chamber (6), a second solenoid on-off valve (11) provided in a second passage (10) providing communication between the piston-side chamber (6) and a tank (7), and a damping valve (22) provided in a discharge passage (21) connecting the rod-side chamber (5) and the tank (7), wherein abnormalities in the first solenoid on-off valve (9) and the second solenoid on-off valve (11) are diagnosed on the basis of states of energization of the first solenoid on-off valve (9), the second solenoid on-off valve (11), and the damping valve (22), and on the basis of a state of displacement of the actuator (A).

Inventors:
OGAWA Takayuki (World Trade Center Bldg. 4-1, Hamamatsu-cho 2-chome, Minato-k, Tokyo 11, 〒1056111, JP)
Application Number:
JP2019/005628
Publication Date:
September 12, 2019
Filing Date:
February 15, 2019
Export Citation:
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Assignee:
KYB CORPORATION (World Trade Center Bldg, 4-1 Hamamatsu-cho 2-chome, Minato-k, Tokyo 11, 〒1056111, JP)
International Classes:
B61F5/24; F16F9/19; F16F9/46; F16F15/02; F16F15/023
Foreign References:
JP2012245926A2012-12-13
JP2012076553A2012-04-19
Attorney, Agent or Firm:
ISHIKAWA Ken (Maruhiro Kyobashi Bldg. 9th Floor, 5-12 Kyobashi 1-chome, Chuo-k, Tokyo 31, 〒1040031, JP)
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