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:
Sep. 19, 1989
Filed:
Jul. 23, 1987
Gerhard Bohn, Munich, DE;
Messerschmitt-Bolkow-Blohm GmbH, Munich, DE;
Abstract
A method for controlling a magnet of a magnetically levitated railroad, wherein at least three variables are used which are acquired in an observer unit (support circuit) based on the measured magnitudes for the magnetic gap width s, as well as the magnetic acceleration b; to improve the following behavior of the magnetically levitated vehicle without increasing the background noise component, an additional rail signal is feed to the controller of the individual magnets, which rail signal is respectively obtained by a rail observer unit from the measured magnitudes of the magnet gap width and the magnet acceleration of one of the magnets which is leading in a travel direction in such a way that it represents a noiseless rail signal with a correct phase in the useful frequency range as referred to the respectively trailing magnets.