Patent ID: 11888189
Assignee: HONDA MOTOR CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 3:
4. The fuel cell system according to claim 1, further comprising:
a power generation quantity detection unit configured to detect an accumulated power generation quantity from a reference timing point;
a first generated water storage tank provided in a second passage section of the gas circulation passage connected to the other end side of the cathode-side internal passage and configured to store the generated water flowing out of the cathode-side internal passage when oxygen gas circulates and flows through the gas circulation passage in the one direction;
a first generated water quantity detection device configured to detect a flow rate of the generated water stored in the first generated water storage tank;
a second generated water storage tank provided in a first passage section of the gas circulation passage connected to one end side of the cathode-side internal passage and configured to store the generated water flowing out of the cathode-side internal passage when the oxygen gas circulates and flows through the gas circulation passage in the other direction; and
a second generated water quantity detection device configured to detect a flow rate of the generated water stored in the second generated water storage tank,
wherein, in a case in which the oxygen gas circulates and flows through the gas circulation passage in the one direction, the control device switches a flow of the oxygen gas by the gas circulation device to the other direction when a difference between a quantity of the generated water estimated from an accumulated power generation quantity detected by the power generation quantity detection unit and the generated water quantity detected by the first generated water quantity detection device becomes a threshold or more, and
in a case in which the oxygen gas circulates and flows through the gas circulation passage in the other direction, the control device switches a flow of the oxygen gas by the gas circulation device to the one direction when a difference between a quantity of the generated water estimated from an accumulated power generation quantity detected by the power generation quantity detection unit and the generated water quantity detected by the second generated water quantity detection device becomes a threshold or more.