Patent ID: 9531019
Filing Date: 2016-12-27
CPC Classification: H01M,Y02E,Y02T

Claim Text:
1. A method for controlling a fuel cell system, comprising: monitoring, by a controller, an external air temperature and a fuel cell temperature; calculating, by the controller, a shut-off duration of the fuel cell system, a maximum external air temperature for the shut-off duration and a maximum fuel cell temperature for the shut-off duration when a vehicle having the fuel cell system mounted therein is keyed on; estimating, by the controller, a gas composition of a fuel cell at a key-on time using the shut-off duration, the maximum external air temperature and the maximum fuel cell temperature; setting, by the controller, an ignition condition of the fuel cell system based on the estimated gas composition; and performing, by the controller, ignition of the fuel cell system based on the set ignition condition.