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. 16, 2016
Filed:
Dec. 21, 2009
W. Jack Hardin, Metamora, IL (US);
Walter E. Earleson, Morton, IL (US);
Roy C. Fonseca, East Peoria, IL (US);
W. Jack Hardin, Metamora, IL (US);
Walter E. Earleson, Morton, IL (US);
Roy C. Fonseca, East Peoria, IL (US);
Progress Rail Services Corporation, Albertville, AL (US);
Abstract
A diesel-electric locomotive has two separate engine systems, including a large engine system and a small engine system. The power output from the separate engine systems may be combined to power the locomotive's traction motors. When the locomotive requires low power output for propulsion, only the small engine system is used to power the traction motors. When the locomotive requires higher power output, only the large engine system is used to power the traction motors. When the locomotive requires maximum power output, the small and the large engine system may both be used and their power output combined to power the traction motors. Also, a unique control strategy maintains a smooth delivery of power to the traction motors in the event that one engine shuts down or starts as a result of a change in the commanded power output of the locomotive.