Patent ID: 8715873
Filing Date: 2014-05-06
Classification: H01M,Y02E,Y02T

Abstract:
1. A fuel cell system comprising: at least one fuel cell stack designed to react reactants for current generation; a cold start detection apparatus for detecting a cold start state of the fuel cell stack; a load that is connectable to the fuel cell stack; and a control device programmed to connect the load when the fuel cell stack is in the cold start state, with feed of the reactants for the fuel cell stack being conformed to connection of the load; wherein, the control device is programmed to vary a connected load in at least one step load change in response to a detection of the cold start state of the fuel cell stack by increasing a current or power output of the fuel cell for a first period of time, decreasing the current output or connected load of the fuel cell during a second period of time that is subsequent to the first period of time, and increasing the connected load of the fuel cell during a third period of time that is subsequent to the second period of time.