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Control apparatus and method for efficiently heating a fuel processor in a fuel cell system

United States Patent

6,602,624
August 5, 2003
View the Complete Patent at the US Patent & Trademark Office
A control apparatus and method for efficiently controlling the amount of heat generated by a fuel cell processor in a fuel cell system by determining a temperature error between actual and desired fuel processor temperatures. The temperature error is converted to a combustor fuel injector command signal or a heat dump valve position command signal depending upon the type of temperature error. Logic controls are responsive to the combustor fuel injector command signals and the heat dump valve position command signal to prevent the combustor fuel injector command signal from being generated if the heat dump valve is opened or, alternately, from preventing the heat dump valve position command signal from being generated if the combustor fuel injector is opened.
Doan; Tien M. (Columbia, MD), Clingerman; Bruce J. (Palmyra, NY)
General Motors Corporation (Detroit, MI)
09/ 507,805
February 22, 2000
GOVERNMENT SUPPORT The Government of the United States of America has right in this invention pursuant to Agreement No. DE-AC02-90CH10435 awarded by the U.S. Department of Energy.