Honda Motor Co., Ltd.
Fuel cell system and control method thereof

Abstract:

A fuel cell system includes: a partial oxidation reformer; a fuel cell stack; a CO sensor configured to detect a CO concentration in a fuel gas produced in the partial oxidation reformer and introduced into the fuel cell stack; a mixing ratio adjusting unit configured to adjust a mixing ratio of a raw fuel and air supplied to the partial oxidation reformer; a target CO concentration setting unit configured to set a target CO concentration in the fuel gas introduced into the fuel cell stack; and a mixing control unit configured to control operation of the mixing ratio adjusting unit such that the CO concentration detected by the CO sensor becomes the target CO concentration.