The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 16, 2021
Filed:
Mar. 04, 2019
Central Japan Railway Company, Nagoya, JP;
Kazuhiko Nishimura, Nagoya, JP;
Shigemitsu Kita, Nagoya, JP;
Gakuji Kobayashi, Nagoya, JP;
Suetaka Ebina, Nagoya, JP;
CENTRAL JAPAN RAILWAY COMPANY, Nagoya, JP;
Abstract
Provided is a monitoring system that can find abnormality in a device that supports a vehicle body of a railway vehicle during running at an early stage. The monitoring system for the railway vehicle includes a detector and a determiner. The detector detects a pressure Aof a first air spring, a pressure Aof a second air spring, a pressure Aof a third air spring, and a pressure Aof a fourth air spring of the railway vehicle during running. The first, second, third, and fourth air springs are respectively disposed on right front, left front, right rear, and left rear sides in a running direction of the railway vehicle. The determiner determines abnormality from a relation between a magnitude of diagonal imbalance P obtained from a formula (1) or (2) below and a mileage or elapsed time of the railway vehicle.=(1−2)−(3−4)  (1)=(3−4)−(1−2)  (2)