INTERNAL COMBUSTION ENGINE CONTROL DEVICE

Title:

INTERNAL COMBUSTION ENGINE CONTROL DEVICE

Document Type and Number:

WIPO Patent Application WO/2021/079665

Kind Code:

A1

Abstract:

Conventionally, detection of the state of a sub-chamber has been impossible unless a sensor is installed near the sub-chamber, preventing appropriate engine control. An ECU 20 is provided with: a jet intensity estimating unit 51 for estimating the intensity of a flame jet by means of at least one of a primary current, a primary voltage, a secondary current, and a secondary voltage of an ignition device which is attached inside the sub-combustion chamber, injects into a main combustion chamber a flame jet generated by ignition of a mixture gas inside the sub-combustion chamber, and supplies a secondary current to an ignition plug for igniting the mixture gas in the main combustion chamber; and an engine control unit 52 which controls an internal combustion engine on the basis of a combustion state inside the sub-combustion chamber determined from the estimated intensity of the flame jet.

Inventors:

SHIMADA ATSUSHI (JP)
KUMANO KENGO (JP)
SARUWATARI MASAYUKI (JP)
ORYOJI KAZUHIRO (JP)
AONO TOSHIHIRO (JP)
KUSAKABE RYO (JP)

Application Number:

PCT/JP2020/035388

Publication Date:

April 29, 2021

Filing Date:

September 18, 2020

Export Citation:

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Assignee:

HITACHI ASTEMO LTD (JP)

International Classes:

F02D45/00; F02B19/08; F02B19/12; F02D41/02; F02D43/00; F02P5/15; F02P13/00; F02P15/08

Foreign References:

JP2002276519A	2002-09-25
JP2018174030A	2018-11-08
JP2016056684A	2016-04-21
JP2013227921A	2013-11-07
JP2015190338A	2015-11-02
JP2011196342A	2011-10-06

Other References: