Patent ID: 11870114
Assignee: HONDA MOTOR CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A fuel cell system comprising:
a plurality of fuel cells configured to generate electric power using fuel supplied to an anode and an oxidant supplied to a cathode;
a plurality of anode opening/closing parts configured to switch between opening and closing of an anode channel in communication with the anode and through which the fuel flows;
a plurality of cathode opening/closing parts configured to switch between opening and closing of a cathode channel in communication with the cathode and through which the oxidant flows:
a plurality of anode pressure detection parts configured to detect a pressure of the fuel in the anode channel;
a plurality of cathode pressure detection parts configured to detect a pressure of the oxidant in the cathode channel; and
a control part configured to control switching between opening and closing of each of the anode opening/closing part and the cathode opening/closing part, and to determine whether there is a cross leak that is a permeation abnormality of the fuel or the oxidant between the anode and the cathode on the basis of a pressure difference, which is a difference between the pressure of the fuel and the pressure of the oxidant detected by the anode pressure detection part and the cathode pressure detection part in a stopped state of electric power generation of the fuel cell, or a change in the pressure difference,
wherein downstream of the cathode opening/closing part, the cathode pressure detection part is provided between the cathode and the cathode opening/closing part in the cathode channel.