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:
Jul. 13, 2021
Filed:
Feb. 25, 2019
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Yusuke Katayama, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A fuel cell system includes: a fuel cell; a compressor; a supply adjusting valve adjusting an amount of air to be supplied; a bypass valve adjusting a flow rate of the air passing through the bypass flow passage; a flow rate measuring unit measuring a flow rate of the air; a pressure measuring unit measuring a pressure of the air; an opening control unit outputting an opening control signal for controlling degrees of opening of the supply adjusting valve and the bypass valve; a rotation speed control unit outputting a rotation speed control signal for controlling a rotation speed of the compressor; and a determination unit determining that the bypass valve is stuck open when the flow rate is less than a flow rate threshold value, and determines that pipe disconnection has occurred when the flow rate is equal to or greater than the flow rate threshold value.