Title:
内燃機関の異常判定装置
Document Type and Number:
Japanese Patent JP6813608
Kind Code:
B2
Abstract:
An abnormality determination apparatus for an internal combustion engine in which an intake passage upstream of a supercharger and a crankcase are connected by a breather line includes: an intake flow rate detection unit that detects an intake flow rate in the intake passage; and an abnormality determination unit that determines abnormality of the breather line. The abnormality determination unit accumulates a value calculated from a rotation second-order component of a fluctuation waveform of the intake flow rate over a predetermined period of time and determines the abnormality of the breather line when the accumulated value is less than a predetermined threshold.
Inventors:
Sekiguchi Nobu
Takashi Kimoto
Yoshifumi
Takashi Kimoto
Yoshifumi
Application Number:
JP2019021327A
Publication Date:
January 13, 2021
Filing Date:
February 08, 2019
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
F01M13/00
Domestic Patent References:
| JP2020114993A | ||||
| JP2019044699A | ||||
| JP2016517520A | ||||
| JP2013002382A | ||||
| JP6584461B2 |
Foreign References:
| US20140081551 | ||||
| US7259575 |
Attorney, Agent or Firm:
Ochiai Patent Office