Title:
ENGINE MISFIRE DETECTION DEVICE AND MISFIRE DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/153318
Kind Code:
A1
Abstract:
This engine misfire detection device comprises: a misfire detection unit that detects a misfire state in at least one cylinder in an engine; a valid misfire determination unit that, when the misfire state is detected by the misfire detection unit, determines the risk of burning of unburnt fuel in an exhaust flue, on the basis of an unburnt parameter which is an index of the concentration of unburnt fuel in the exhaust flue; and an engine stop process control unit that performs a process for stopping the engine, on the basis of the determination result in the valid misfire determination unit.
Inventors:
ANDO JUNNOSUKE (JP)
YOSHIZUMI HIROSHI (JP)
KAWAI KAZUHIRO (JP)
KOAKUTSU TAKAHIRO (JP)
YOSHIZUMI HIROSHI (JP)
KAWAI KAZUHIRO (JP)
KOAKUTSU TAKAHIRO (JP)
Application Number:
PCT/JP2023/003487
Publication Date:
August 17, 2023
Filing Date:
February 03, 2023
Export Citation:
Assignee:
MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD (JP)
International Classes:
F02D45/00; F02D41/22
Foreign References:
| JPH09151723A | 1997-06-10 | |||
| JP2013174146A | 2013-09-05 | |||
| JP2003262150A | 2003-09-19 | |||
| JP2020133527A | 2020-08-31 | |||
| JP2001107799A | 2001-04-17 | |||
| JP2001027148A | 2001-01-30 | |||
| JP6441291B2 | 2018-12-19 | |||
| JP2009121453A | 2009-06-04 |
Attorney, Agent or Firm:
SSIP PATENT ATTORNEY CORPORATION (JP)
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