Title:
CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2022/224516
Kind Code:
A1
Abstract:
Processors (B705, B706) of a control device for an internal combustion engine 1 calculate, from the crank angle detected by a crank angle sensor 20, a first combustion timing (MFB50) or a first combustion period (IG100_1) in a cylinder of the internal combustion engine 1. A processor (B702) calculates a heat generation rate on the basis of the first combustion timing or the first combustion period. A processor (B703) calculates in-cylinder pressure and in-cylinder unburned gas temperature on the basis of the heat generation rate. A processor (B704) calculates a first combustion rate (laminar flow combustion rate SL1) on the basis of the in-cylinder pressure and the in-cylinder unburned gas temperature. A processor (B707) learns the correlation between the first combustion rate and the first combustion timing or first combustion period.
Inventors:
SUZUKI KUNIHIKO (JP)
Application Number:
PCT/JP2022/002721
Publication Date:
October 27, 2022
Filing Date:
January 25, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F02D43/00; F02D45/00
Foreign References:
| JP2016017459A | 2016-02-01 | |||
| JP2015096700A | 2015-05-21 | |||
| JP2006200396A | 2006-08-03 | |||
| JP2018053742A | 2018-04-05 | |||
| JP2017219005A | 2017-12-14 | |||
| JP2008121576A | 2008-05-29 | |||
| JP2007218152A | 2007-08-30 | |||
| JP2007127004A | 2007-05-24 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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