Title:
内燃機関の制御装置
Document Type and Number:
Japanese Patent JP7250067
Kind Code:
B2
Abstract:
To provide a controller for internal combustion engine which can improve the estimation accuracy of the period in the chipped tooth section, even if the period is suddenly varied in the chipped tooth section. A controller for internal combustion engine detects a period when the tooth passes, based on an output signal of the crank angle sensor; determines a period corresponding to the chipped tooth section; determines a crank angle corresponding to the passed tooth; and estimates a period of a virtual unit angle interval when assuming that the tooth is provided at the unit angle interval in the chipped tooth section, based on the period of the chipped tooth section, the period before the chipped tooth section, and the period after the chipped tooth section.
Inventors:
Takehiko Takahashi
Keiichi Arita
Kako Ichidai
Yuhei Matsushima
Keiichi Arita
Kako Ichidai
Yuhei Matsushima
Application Number:
JP2021096322A
Publication Date:
March 31, 2023
Filing Date:
June 09, 2021
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F02D45/00
Domestic Patent References:
| JP11132088A | ||||
| JP2011256806A | ||||
| JP2009275618A |
Foreign References:
| US20050212508 | ||||
| US6560528 | ||||
| US5717133 |
Attorney, Agent or Firm:
Parumo Patent Attorneys Office
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