Patent ID: 6770391
Filing Date: 2004-08-03
Classification: B60L,H01M,Y02E,Y02T

Abstract:
A fuel cell system, comprising:a fuel cell stack; a fuel processor that provides a reformate stream to said fuel cell stack; a carbon monoxide sensor that senses the concentration of carbon monoxide in said reformate stream; a carbon dioxide sensor that senses the concentration of carbon dioxide in said reformate stream; a water sensor that senses the concentration of water in said reformate stream; a fuel meter for controlling fuel to said fuel processor; a water meter for controlling water to said fuel processor; an air meter for controlling air to said fuel processor; and a hydrogen sensor connected to said carbon monoxide sensor, said carbon dioxide sensor, said water sensor, said fuel meter, said water meter, and said air meter, wherein said hydrogen sensor estimates hydrogen concentration of said reformate stream.