Honda Motor Co., Ltd.

Yuta Hoshi

Ryoichi Yoshitomi

Daisuke Kurashina

Yukihiro Fukushima

Takumi Kawano

Shoji Takasugi

A water electrolysis system controls a power supply device for passing a current between an anode and a cathode in a water electrolysis stack, based on a hydrogen concentration detected by a concentration sensor provided in a discharge pipe at a location downstream of a pressure control valve.

Water electrolysis system

A fuel cell system including an exhaust merging unit at which a cathode exhaust fluid containing water discharged from a cathode of a fuel cell stack merges with an anode exhaust fluid containing water discharged from an anode of the fuel cell stack, wherein the exhaust merging unit includes a cathode exhaust outlet for discharging the cathode exhaust fluid, an anode exhaust outlet for discharging the anode exhaust fluid, and a partition separating the cathode exhaust outlet and the anode exhaust outlet on an upstream side of a merging section at which the cathode exhaust outlet and the anode exhaust outlet merge.

Fuel cell system

In a water electrolysis system and a control method therefor, when a depressurizing process is performed, pressure reducing valves for high pressure reduce the pressure of a high pressure hydrogen. A first pressure detecting sensor detects, as a first pressure, a pressure of the high pressure hydrogen on a more upstream side than the pressure reducing valves for high pressure. A second pressure detecting sensor detects, as a second pressure, a pressure of the high pressure hydrogen on a more downstream side than a first pressure reducing valve of the pressure reducing valves for high pressure. Based on the first pressure or the second pressure, a controller controls a degree of opening of a depressurization control valve.

Growing community of inventors

Wako, Japan

Yuta Hoshi