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:
Dec. 27, 2022
Filed:
Sep. 22, 2021
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Hitoki Sugimoto, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A CPU determines that there is a misfire when a relative magnitude of a rotation fluctuation amount ΔT[0] related to a cylinder subject to the determination in relation to a rotation fluctuation amounts ΔT[4] of the previous combustion cycle is greater than or equal to the determination value Δth. However, during the execution of a catalyst warm-up process, the CPU uses, in the comparison, the relative magnitude of the rotation fluctuation amount ΔT[0] in relation to the average ΔTave[0] of the smallest five of the rotation fluctuation amounts ΔT[4] to ΔT[40] from the past ten combustion cycles.