Honda Motor Co., Ltd.

Ryo Jimba

Seiji Sugiura

Hideo Kato

Katsumi Hayashi

Shigeru Inai

Masahiro Mohri

Hiromichi Yoshida

Hiroshi Morikawa

An electric power supply system of an embodiment includes a plurality of fuel cell systems having fuel cell stacks, a controller configured to control to perform stable output electric generation in one fuel cell system having one fuel cell stack, in which a degraded state of an electrode is relatively large, among the plurality of fuel cell stacks, and to perform transient response electric generation in other fuel cell system having other fuel cell stack, in which a degraded state of an electrode is relatively small, and a cell voltage sensor.

Electric power supply system, controlling method of electric power supply system, and storage medium

When it is detected that the temperature of the fuel cell stack is at the freezing temperature of water or less (step S), an operation mode using a freezing temperature starting up operation control map is selected (step S). Freezing temperature starting up operation of the fuel cell stack is performed according to the freezing temperature starting up operation control map (step S). Then, when it is detected that the temperature of the fuel cell stack exceeds the freezing temperature (step S), the operation mode using the freezing temperature starting up operation control map is switched to an operation mode using a normal starting up operation control map (step S). Thus, normal starting up operation is performed according to the normal starting up control map (step S).

Method of starting up operation of fuel cell at low temperature

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Wako, Japan

Ryo Jimba