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. 23, 1996
Filed:
Jun. 10, 1994
David L Schantz, Jr, Ellicott City, MD (US);
William B Hall, Annapolis, MD (US);
William B Winkel, Bowie, MD (US);
Geoffrey B Lansberry, Cambridge, MA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A method for testing a power bridge for an electric vehicle propulsion system, the power bridge including a switching circuit having first and second switching elements operable between 'on' and 'off' states. The method comprises the steps of selectively switching the first and second switching elements between the 'on' and 'off' states, monitoring the first and second switching elements to determine whether the first and second switching elements operate between the 'on' and 'off' states when selectively switched, and indicating a failure o#the switching circuit when at least one of the first and second switching elements does not operate between the 'on' and 'off' states when selectively switched.