Title:
INTERNAL COMBUSTION ENGINE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/199509
Kind Code:
A1
Abstract:
An internal combustion engine control device that controls a fuel injection amount on the basis of a flow amount of air flowing in a plurality of cylinders of a multi-cylinder internal combustion engine having an exhaust pipe in which exhaust gas from each cylinder gets together is provided with a control unit that performs mass balance calculation for each of fuel and air at an entrance and an exit of each cylinder, estimates a fuel mass proportion for each cylinder while estimating an air-fuel ratio of the exhaust pipe from a result of each mass balance calculation, and calculates an air-fuel ratio of each cylinder from the air-fuel ratio of the exhaust pipe and the fuel mass proportion for each cylinder.
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Inventors:
INOUE MASAHIKO (JP)
SUZUKI KUNIHIKO (JP)
SUZUKI KUNIHIKO (JP)
Application Number:
PCT/JP2022/017916
Publication Date:
October 19, 2023
Filing Date:
April 15, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F02D45/00; F02D41/14
Foreign References:
| JP2004316483A | 2004-11-11 | |||
| JPH1162668A | 1999-03-05 | |||
| JPH08240139A | 1996-09-17 |
Attorney, Agent or Firm:
SHIN-YU INTERNATIONAL PATENT FIRM (JP)
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