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:
Apr. 13, 2021
Filed:
Nov. 09, 2018
Kyosan Electric Mfg. Co., Ltd., Yokohama, JP;
Kenji Mizuno, Sagamihara, JP;
Tamotsu Yokoyama, Yokohama, JP;
Tomonori Itagaki, Kawasaki, JP;
Toshifumi Nishi, Yokohama, JP;
KYOSAN ELECTRIC MFG. CO., LTD., Yokohama, JP;
Abstract
Whether or not slip-or-skid of a wheel on any one of a plurality of axles of a train to which pulse generators (PGs) are provided has occurred is determined on the basis of speed pulses output from the PGs. When occurrence of slip-or-skid is detected, a train occupancy range is calculated with a front end portion of the train determined on the basis of a forward-side one of train positions obtained on the basis of the speed pulses output by the PGs, and with a rear end portion of the train determined on the basis of a backward-side one of the train positions. Whether or not any of the PGs is abnormal is determined on the basis of the speed pulses or a speed and acceleration/deceleration calculated from the speed pulses.