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Patent Searching and Data


Title:
FUEL CELL SYSTEM
Document Type and Number:
Japanese Patent JP2019129014
Kind Code:
A
Abstract:
To suppress the effect of a change of injection cycle of a hydrogen gas and find the concentration of a hydrogen gas in a hydrogen gas passage with high accuracy.SOLUTION: A fuel cell system of the present invention comprises: a fuel cell; a hydrogen gas passage including a hydrogen gas passage within the fuel cell, in which a hydrogen gas used in power generation by the fuel cell circulates; a hydrogen gas supply unit for supplying a hydrogen gas to the hydrogen gas passage by jetting out a hydrogen gas, the hydrogen gas supply unit capable of changing an injection cycle and adjusting the amount of a hydrogen gas supplied; a heat flow sensor for detecting a heat flow rate in the hydrogen gas passage; a pressure sensor for detecting the pressure in the hydrogen gas passage; and a hydrogen concentration detection unit for detecting the concentration of a hydrogen gas in the hydrogen gas passage. The hydrogen concentration detection unit detects the concentration of a hydrogen gas in the hydrogen gas passage using the injection cycle and a correlation value of a change amount of the heat flow rate detected by the heat flow sensor to the change amount of pressure detected by the pressure sensor in the injection cycle.SELECTED DRAWING: Figure 7

Inventors:
HATASAKI MIHO
YAMAMOTO KAZUO
HASEGAWA SHIGEKI
Application Number:
JP2018008494A
Publication Date:
August 01, 2019
Filing Date:
January 23, 2018
Export Citation:
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Assignee:
SOKEN INC
TOYOTA MOTOR CORP
International Classes:
H01M8/0444; G01N25/18; H01M8/04; H01M8/0432; H01M8/0438; H01M8/04746
Attorney, Agent or Firm:
特許業務法人明成国際特許事務所