Patent ID: 8071249
Filing Date: 2011-12-06
Classification: H01M,Y02E,Y02T

Abstract:
1. A control method for a fuel cell system including a fuel cell, a fuel supply system for supplying fuel gas to the fuel cell, a pressure sensor located at a pressure regulation position, and an injector for regulating a gas state upstream of the fuel supply system and for supplying the gas downstream, the method comprising the steps of: calculating a target pressure value at the pressure regulation position based on an operating state of the fuel cell; detecting, via the pressure sensor, a detection pressure value at the pressure regulation position; calculating a pressure differential decrease correction flow rate for decreasing a deviance of the target pressure value and the detection pressure value; setting an injection time of the injector based on the pressure differential decrease correction flow rate; and controlling the injector at a predetermined drive cycle based on the set injection time.