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:
Jul. 05, 2011
Filed:
Feb. 10, 2010
Arnold R. Miller, Lakewood, CO (US);
Kris S. Hess, Westminster, CO (US);
Timothy L. Erickson, Parker, CO (US);
James L. Dippo, Arvada, CO (US);
Arnold R. Miller, Lakewood, CO (US);
Kris S. Hess, Westminster, CO (US);
Timothy L. Erickson, Parker, CO (US);
James L. Dippo, Arvada, CO (US);
BNSF Railway Company, Fort Worth, TX (US);
Abstract
A hydrogen hybrid locomotive including traction motors for moving the locomotive along a set of tracks, a set of batteries for providing electrical power to the traction motors, a hydrogen fuel cell power plant for charging the set of batteries, an air system having a variable speed compressor for providing air flow to the power plant, and a DC to DC converter for managing power distribution from the hydrogen fuel cell power plant to the batteries. A controller determines an amount of current required from the power plant to produce a selected amount of power, determines a stoic operating setpoint for the power plant based on the current required, sets the speed of a compressor within the air system to provide a selected amount of air flow to the power plant for the determined stoic operating setpoint, determines from a resulting actual air flow to the power module available power, and sets an operating setpoint of the DC to DC converter from the determined an available power.