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:
May. 20, 2025
Filed:
Aug. 26, 2024
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Masanori Toya, Inazawa, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
Processing circuitry controls a fuel injection amount of a direct injection valve provided in an internal combustion engine that uses hydrogen as fuel. An amount of combustion gas that flows back into the direct injection valve due to occurrence of pre-ignition is defined as a backflow amount. A single combustion cycle starting from a cylinder where fuel injection is performed subsequent to a cylinder where the pre-ignition has occurred is referred to as a subsequent cycle. The processing circuitry is configured to execute a process that reduces the fuel injection amount in the subsequent cycle when the backflow amount is relatively small compared with when the backflow amount is relatively large.