Title:
CONTROL METHOD AND CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2021/245436
Kind Code:
A1
Abstract:
An internal combustion engine (1) comprises: an exhaust recirculation device having an exhaust recirculation control valve (9); a crank angle sensor (11) for detecting illustrated average effective pressure volatility (cPi), which is an indicator of the combustion stability of the internal combustion engine (1); and a controller (10) that corrects the EGR rate of the exhaust recirculation device on the basis of the combustion stability. The controller (10) increases and corrects the EGR rate by a predetermined amount when the state in which the illustrated average effective pressure volatility (cPi) is less than the threshold value continues for a predetermined number of cycles. The EGR rate is immediately reduced and corrected when the illustrated average effective pressure volatility (cPi) is equal to or greater than a threshold value.
Inventors:
ZHONG PEIYING (JP)
Application Number:
PCT/IB2020/000548
Publication Date:
December 09, 2021
Filing Date:
June 04, 2020
Export Citation:
Assignee:
NISSAN MOTOR (JP)
RENAULT SAS (FR)
RENAULT SAS (FR)
International Classes:
F02D21/08; F02D45/00
Foreign References:
| JPS60104754A | 1985-06-10 | |||
| JP2002130028A | 2002-05-09 | |||
| JP2014177911A | 2014-09-25 | |||
| JP2019167009A | 2019-10-03 | |||
| JPS60104754A | 1985-06-10 | |||
| JPH0914028A | 1997-01-14 | |||
| JP2014177911A | 2014-09-25 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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