Patent ID: 6374166
Filing Date: 2002-04-16
Classification: B60L,H01M,Y02E,Y02T

Abstract:
A control system for a fuel cell vehicle equipped with a fuel cell system including a reformer which generates hydrogen, a fuel cell which generates electrical power from the generated hydrogen, and an exhaust hydrogen combustor which combusts exhaust hydrogen exhausted from the fuel cell, the control system comprising:a first calculator which calculates an amount of hydrogen generated and a reaction temperature in the reformer; a second calculator which calculates an amount of hydrogen consumed, based on a voltage and a current generated by the fuel cell; a third calculator which calculates an amount of hydrogen exhausted by subtracting the consumed amount of hydrogen from the generated amount of hydrogen; a fourth calculator which calculates a combustion temperature in the exhaust hydrogen combustor, based on the exhausted amount of hydrogen; a fifth calculator which calculates a temperature difference between the calculated combustion temperature and a detected temperature of the exhaust hydrogen combustor; a decider which decides that the exhaust hydrogen combustor be abnormal with respect to combustion temperature, when the calculated temperature difference exceeds a first prescribed value; and a controller which controls the fuel cell vehicle to be driven in dependence on a decision of the decider.