Title:
INTERNAL COMBUSTION ENGINE CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2023080569
Kind Code:
A
Abstract:
To acquire an internal combustion engine control device capable of accurately detecting a knock while suppressing a lag in an ignition timing due to a noise.SOLUTION: A noise avoidance part 48 determines that a noise is generated when knock strength Vk1 before processing is smaller than a noise determination threshold Vnth in noise avoidance processing. Also, in the noise avoidance processing, the noise avoidance part 48 prohibits a lag in an ignition timing when it is determined that a noise is generated again in a set period. Furthermore, the noise avoidance part 48 permits the lag in the ignition timing when the knock strength Vk1 before processing of at least one knock unique frequency component becomes the noise determination threshold Vnth or more in the set period, and when the knock strength Vk1 of two or more knock unique frequency components becomes a reference noise determination threshold Vnthb or more.SELECTED DRAWING: Figure 3
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Inventors:
KADOWAKI MASAKI
Application Number:
JP2021193990A
Publication Date:
June 09, 2023
Filing Date:
November 30, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F02P5/152; F02D45/00
Domestic Patent References:
| JP2014034888A | 2014-02-24 | |||
| JP2013087624A | 2013-05-13 | |||
| JPS63263245A | 1988-10-31 |
Foreign References:
| US4424706A | 1984-01-10 |
Attorney, Agent or Firm:
Michiharu Soga
Jun Kajinami
Kazuhiro Oya
Shunichi Ueda
Junichiro Yoshida
Jun Kajinami
Kazuhiro Oya
Shunichi Ueda
Junichiro Yoshida