Patent ID: 7517599
Filing Date: 2009-04-14
Classification: H01M,Y02E,Y02T

Abstract:
1. A fuel cell system comprising: a fuel cell having output terminals; a voltage converter that is connected to said output terminals of said fuel cell; an electrical storage device that is connected in parallel to said fuel cell via said voltage converter and is capable of power charging and discharging; a current detector that detects a current value of said fuel cell; and a current offset correction value determination device that determines a current offset correction value for said current detector by setting an output terminal voltage of said fuel cell to an open circuit voltage via said voltage converter, wherein said fuel cell system is mounted in a moving object, said current offset correction value determination device determines said current offset correction value by setting the output terminal voltage of said fuel cell to the open circuit voltage during a period that the moving object does not require power generation by said fuel cell.