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:
Oct. 21, 2003
Filed:
Aug. 22, 2002
Curtis W. McCullers, Scottdale, PA (US);
Kenneth A. Karg, Belle Vernon, PA (US);
Dean J. Campbell, Jefferson Hills, PA (US);
Andreas H. Etzel, Karlsruhe, DE;
Alice E. Smith, Auburn, AL (US);
Bombardier Transportation GmbH, Berlin, DE;
Abstract
Disclosed is a light rail vehicle having a predictive diagnostic system for a motor driven automated door ( ) to enable condition-based maintenance. The light rail vehicle ( ) has an automated door system ( ), at least one data acquisition board ( ), a data collection program ( ), an exponential smoothing algorithm ( ), and a neural network ( ). The need for maintenance is identified through the collection of various door system ( ) parameters, calculating current energy and time consumption from these parameters, and determining the rate of degradation based on current energy and time consumption of the door system ( ) as compared with historical energy and time consumption. From the rate of degradation, maintenance can be scheduled as needed.