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. 11, 2006
Filed:
Jan. 27, 2004
Jian Shen, Upper Saint Clair, PA (US);
Fred S. Marton, Export, PA (US);
Linda F. Clawson, Monroeville, PA (US);
Kenneth A. Karg, Belle Vernon, PA (US);
Jian Shen, Upper Saint Clair, PA (US);
Fred S. Marton, Export, PA (US);
Linda F. Clawson, Monroeville, PA (US);
Kenneth A. Karg, Belle Vernon, PA (US);
Bombardier Transportation GmbH, Berlin, DE;
Abstract
A mass transit vehicle traction motor control system includes an automatic control block for receiving and processing a tachometer signal having a first resonance signal superimposed thereon to produce a rate request signal having a corresponding second resonance signal superimposed thereon. A filter is provided for decreasing an amplitude of the second resonance signal whereupon the rate request signal is isolated therefrom. A communication and control block and a propulsion and control block co-act to process the isolated rate request signal to produce a speed control signal that is configured to cause a traction motor of a mass transit vehicle to provide motive force to the mass transit vehicle at a rate related to the value of the speed control signal.