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:
Sep. 29, 2026
Filed:
Jul. 24, 2025
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A controller is applied to a fuel supply system. The controller is capable of controlling a hydrogen engine and a first shut-off valve and a second shut-off valve which are shut-off valves. The controller closes the shut-off valve when an operation for requesting stop of the hydrogen engine is performed by a user of a vehicle having the fuel supply system, and executes a failure determination routine for monitoring a drop speed of pressure of hydrogen gas on the downstream side of the shut-off valve while continuing operation of the hydrogen engine, and determining that the shut-off valve is not properly closed when the drop speed is slow. The controller stops the failure determination routine when the hydrogen engine is stopped due to an engine stall during execution of the failure determination routine.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile