Title:
内燃機関の失火検出装置
Document Type and Number:
Japanese Patent JP7276295
Kind Code:
B2
Abstract:
A misfire detection device for an internal combustion engine is configured to execute: a deactivating process that deactivates combustion control for air-fuel mixture in one or some of cylinders; a provisional determination process that uses a detection value of a sensor to output a logical value indicating whether a misfire has occurred; a provisional determination counting process that counts a number of times a specific one of the logical value output by the provisional determination counting process has been output; and an official determination process that makes an official determination of whether the misfire has occurred using, as an input, the number of times counted by the provisional determination counting process during a specific period.
Inventors:
Takumi Yasuzawa
Akihiro Katayama
Yuki Ikejiri
Akihiro Katayama
Yuki Ikejiri
Application Number:
JP2020162970A
Publication Date:
May 18, 2023
Filing Date:
September 29, 2020
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D45/00; F01N3/023; F02D17/02; F02D41/04; F02D41/34
Domestic Patent References:
| JP2005163696A | ||||
| JP2009174503A | ||||
| JP2001107799A |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda
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