Title:
CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2024/018567
Kind Code:
A1
Abstract:
The problem addressed by the present invention is to obtain a control device for an internal combustion engine with which a value outputted by a flow rate sensor provided to an intake flow path of the internal combustion engine can be appropriately corrected, and error between the corrected air flow rate and the actual air flow rate can be reduced. This control device (100) for an internal combustion engine (10) is characterized by comprising a CPU (103) that computes an intake air rate for the internal combustion engine on the basis of a sensor signal of an air flow sensor (12) provided to an intake passage (15), computes a pulsation rate from a pulsation amplitude of the intake air amount of the average air amount, and calculates a correction value for correcting pulsation error in the intake air amount using the pulsation rate and the speed of the internal combustion engine, a computation device having an engine pulsation correction map (131), a blow-by pulsation correction map (132), and a criteria determination unit (133) that selects one of these two correction maps on the basis of parameters that determine the operating range of the internal combustion engine and uses the selected map to calculate the correction value.
Inventors:
MATOHARA SHINYA (JP)
AKAGI YOSHIHIKO (JP)
ORYOJI KAZUHIRO (JP)
ISHIKAWA HIROTO (JP)
AKAGI YOSHIHIKO (JP)
ORYOJI KAZUHIRO (JP)
ISHIKAWA HIROTO (JP)
Application Number:
PCT/JP2022/028254
Publication Date:
January 25, 2024
Filing Date:
July 20, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F02D41/18; F02D45/00; G01F1/68
Domestic Patent References:
| WO2020066548A1 | 2020-04-02 |
Foreign References:
| JP2012180842A | 2012-09-20 | |||
| JPH10103147A | 1998-04-21 | |||
| JP2000130227A | 2000-05-09 | |||
| JPH07243344A | 1995-09-19 | |||
| JPH08105781A | 1996-04-23 | |||
| JP2001153702A | 2001-06-08 | |||
| JP2003287453A | 2003-10-10 | |||
| JP2004100472A | 2004-04-02 | |||
| JP2006105100A | 2006-04-20 |
Attorney, Agent or Firm:
HIRAKI & ASSOCIATES (JP)
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