Hyundai Motor Company

Kia Motors Corporation

Deuk Kuen Ahn

Hyun Jae Lee

Jong Hyun Lee

Yei Sik Jeon

Dae Jong Kim

Seon Jong Kang

An apparatus for controlling cooling of a fuel cell-based generator system is provided. The apparatus includes a first valve disposed between an individual cooling-water line of a first fuel cell system and a common cooling-water line and a first valve driver that opens and closes the first valve. A second valve is disposed between an individual cooling-water line of a second fuel cell system and the common cooling-water line and a second valve driver opens and closes the second valve. A controller determines whether a cooling-water temperature of the first fuel cell system exceeds a reference value, and opens the first valve and the second valve so that cooling-water for the second fuel cell system flows into the first fuel cell system, when the cooling-water temperature of the first fuel cell system exceeds the reference value.

Apparatus and method for controlling cooling of fuel cell-based generator system

A fuel cell purging method is provided to effectively prevent fuel cell deterioration and degradation of durability of the fuel cell by performing hydrogen purging at a point in time at which negative pressure of an anode peaks after a fuel cell vehicle is stopped. The fuel cell purging method includes stopping the driving of a fuel cell vehicle and continuously measuring pressure of an anode of a fuel cell after the fuel cell vehicle is stopped. Additionally, hydrogen is supplied to the anode when the measured pressure of the anode reaches a negative pressure peak time point.

Fuel cell purging method

A hydrogen supply method for a fuel cell system, for supplying hydrogen according to a state of the fuel cell system when the fuel cell system is started, includes steps of (a) measuring a stop time period which elapses until the fuel cell system is started after the fuel cell system is stopped, (b) determining whether a reaction time period consumed to complete a reaction of residual hydrogen and residual oxygen residing in a fuel cell stack since the fuel system is stopped is not more than the stop time period, and (c) when it is determined in the step (b) that the stop time period is less than the reaction time period, closing a purge valve that is able to discharge gases accommodated in an anode from the anode and supplying at the same time hydrogen to the anode such that an internal pressure of the anode becomes a predetermined first target pressure.

Growing community of inventors

Gyeonggi-do, South Korea

Deuk Kuen Ahn