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Title:
CONTROLLER OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2023158714
Kind Code:
A
Abstract:
To provide a controller of an internal combustion engine capable of determining occurrence of preignition, using a crank angle jerk that has a strong correlation with a heat generation rate, which has a correlation with the occurrence of preignition.SOLUTION: An internal combustion engine control device 50 calculates, based on an output signal of a crank angle sensor 11, a crank angular jerk δd, which is a time rate of change of a crank angular acceleration αd; calculates, based on the crank angle jerk δd, an evaluation value Ye for determining the occurrence of preignition; and determines, based on the evaluation value Ye, whether or not preignition has occurred.SELECTED DRAWING: Figure 3

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Inventors:
MAKINO MICHIKAZU
KITAO TAKESHI
Application Number:
JP2022068653A
Publication Date:
October 31, 2023
Filing Date:
April 19, 2022
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F02D45/00
Domestic Patent References:
JP2005009457A2005-01-13
JP2011012607A2011-01-20
JP2016075234A2016-05-12
JP2019027402A2019-02-21
JP2019100300A2019-06-24
JP2019183786A2019-10-24
JP2021067182A2021-04-30
JP6012892B12016-10-25
Attorney, Agent or Firm:
Parumo Patent Attorneys Office



 
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