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:
Aug. 08, 1989
Filed:
Apr. 06, 1988
Shuichi Osada, Hyogo, JP;
Satoru Hayashi, Hyogo, JP;
Masaru Goto, Hyogo, JP;
Kiyoshi Godo, Hyogo, JP;
Tsubakimoto Chain Co., , JP;
Abstract
A vehicle control system in accordance with the present invention permits a vehicle to move only in the case where both of a device for detecting the content of a signal for directing the travelling speed of the vehicle transmitted from the trackside and a device for detecting the presence of the above signal perform detecting operations. The apparatus also comprises a device for detecting an abnormal operation of both the above mentioned devices, so that a runaway of the vehicle can be avoided. In addition, a voltage signal can be used for detecting the speed, and the vehicle can be controlled by means of a set of two signal lines, resulting in a reduction in the amount of equipment.