Title:
INTERNAL COMBUSTION ENGINE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/018575
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an internal combustion engine control device that makes it possible both to achieve stable combustion of an air-fuel mixture and to prevent damage to an ignition coil caused by heat production. A control device 200 for an internal combustion engine 100 that comprises an ignition plug 105 and an ignition coil 150 comprises: a temperature estimation unit 210 that estimates a coil temperature that is the temperature in and around the ignition coil 150 of the internal combustion engine 100; and an ignition control unit 220 that controls energization of the ignition coil 150 and thereby controls the current supplied to the ignition plug 105. The ignition coil 150 has an increase mechanism that increases the current being supplied to the ignition plug 105. The ignition control unit 220 controls the increase in current by the increase mechanism such that the increase is smaller the higher the estimated coil temperature.
Inventors:
ORYOJI KAZUHIRO (JP)
MUKAIHARA OSAMU (JP)
MUKAIHARA OSAMU (JP)
Application Number:
PCT/JP2022/028271
Publication Date:
January 25, 2024
Filing Date:
July 20, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F02P3/00; F02P3/05; F02P5/15
Domestic Patent References:
| WO2016157543A1 | 2016-10-06 |
Foreign References:
| JP2019203488A | 2019-11-28 | |||
| JP2017207007A | 2017-11-24 | |||
| JP2015194125A | 2015-11-05 |
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (JP)
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