The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2019
Filed:
Apr. 19, 2018
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Toshihiro Egawa, Okazaki, JP;
Masahiro Okuyoshi, Okazaki, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
It is possible to suppress errors remaining in the measurement by a pressure sensor. A fuel cell system includes a fuel cell, a tank storing fuel gas, a fuel gas supply flow path feeding the fuel gas from the tank to the fuel cell, a first pressure reduction unit reducing pressure of the fuel gas and feeding the fuel gas, a first pressure sensor measuring pressure in the fuel gas supply flow path, a second pressure sensor measuring pressure in the fuel gas supply flow path, a switching valve switching execution and stop of supply of the fuel gas, a correction unit correcting the first pressure sensor based on a second measurement value measured by the second pressure sensor, and a controller controlling the fuel cell system. The controller performs, when the switching valve stops supply of the fuel gas and a first measurement value is larger than a predetermined value, pressure reduction processing to make the first measurement value equal to or smaller than the predetermined value, and then controls the correction unit to correct the first pressure sensor.