Title:
FUEL CELL SYSTEM
Document Type and Number:
Japanese Patent JP2020087529
Kind Code:
A
Abstract:
To restrain deterioration of a fuel cell stack due to oxygen remaining at a cathode, in a fuel cell system.SOLUTION: A fuel cell system includes a fuel cell stack, an oxidant gas supply/exhaust mechanism for supplying oxidant gas, a fuel gas supply/exhaust mechanism for supplying fuel gas, a voltage acquisition part for acquiring the voltage of the fuel cell stack, and a control section. The control section executes first processing for controlling the fuel gas supply/exhaust mechanism so that the fuel gas amount in the anode becomes a predetermined first reference amount if the voltage is less than a predetermined specified value, when stopping the fuel cell system, and second processing for calculating the fuel gas amount required for consumption of oxygen in the oxidant gas in the cathode by using the voltage of the fuel cell stack, if the voltage is equal to or more than the predetermined specified value, when stopping the fuel cell system, and controlling the fuel gas supply/exhaust mechanism so that the fuel gas amount in the anode becomes a second reference amount determined by adding the calculated fuel gas amount to the first reference amount.SELECTED DRAWING: Figure 3
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Inventors:
MORI HIROAKI
Application Number:
JP2018215341A
Publication Date:
June 04, 2020
Filing Date:
November 16, 2018
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
H01M8/04228; H01M8/04303; H01M8/0438; H01M8/04746
Attorney, Agent or Firm:
Meisei International Patent Office