Railway rolling stock – Locomotives – Electric
Reexamination Certificate
2011-07-05
2011-07-05
Morano, S. Joseph (Department: 3617)
Railway rolling stock
Locomotives
Electric
C105S060000, C105S035000, C105S026050, C429S430000
Reexamination Certificate
active
07971538
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.
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Dippo James L.
Erickson Timothy L.
Hess Kris S.
Miller Arnold R.
BNSF Railway Company
Morano S. Joseph
Murphy James J.
Smith Jason C
Thompson & Knight LLP
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