Title:
INTERNAL COMBUSTION ENGINE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/153611
Kind Code:
A1
Abstract:
This internal combustion engine control device comprises: an ignition time estimation unit, a crank angle information acquisition unit, a rotation fluctuation acquisition unit, and a jet intensity acquisition unit. The ignition time estimation unit estimates an ignition time on the basis of a knock sensor signal detected by a knock sensor. The rotation fluctuation acquisition unit calculates, on the basis of crank angle information, a rotational speed variation that is generated later than the ignition time. The jet intensity estimation unit calculates a rotational speed change rate that is generated later than the ignition time on the basis of the rotational speed variation calculated by the rotation fluctuation acquisition unit and the ignition time estimated by the ignition time estimation unit, and estimates jet intensity.
Inventors:
YONEYA NAOKI (JP)
OHATA EIICHIRO (JP)
SHIMADA ATSUSHI (JP)
MITSUFUJI KENTA (JP)
SUKEGAWA YOSHIHIRO (JP)
KUMANO KENGO (JP)
OHATA EIICHIRO (JP)
SHIMADA ATSUSHI (JP)
MITSUFUJI KENTA (JP)
SUKEGAWA YOSHIHIRO (JP)
KUMANO KENGO (JP)
Application Number:
PCT/JP2021/035058
Publication Date:
July 21, 2022
Filing Date:
September 24, 2021
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F02D45/00; F02B19/12
Foreign References:
| JP2007170405A | 2007-07-05 | |||
| JP2018178966A | 2018-11-15 | |||
| JP2017120035A | 2017-07-06 |
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (JP)
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