The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 21, 2023

Filed:

Jan. 05, 2023
Applicant:

Subaru Corporation, Tokyo, JP;

Inventors:

Keisuke Katsuta, Tokyo, JP;

Tatsuya Ichikawa, Tokyo, JP;

Yohsuke Shimoji, Tokyo, JP;

Takuya Shidooka, Tokyo, JP;

Shinsuke Onodera, Tokyo, JP;

Assignee:

SUBARU CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/38 (2006.01); F02D 41/14 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/38 (2013.01); F02D 41/009 (2013.01); F02D 41/1454 (2013.01);
Abstract

A control apparatus for an engine includes a crank angle sensor and a processor. The processor acquires a first crank angular velocity difference which is a change in a crank angular velocity in a first region. The first region includes a rotational change correlated with an engine torque output. The processor acquires a second crank angular velocity difference which is a change in the crank angular velocity in a second region. The second region includes a rotational change correlated with a combustion rate attributable to an air-fuel ratio. In a case where the first crank angular velocity difference is less than or equal to a first threshold and the second crank angular velocity difference is less than or equal to a second threshold, the processor performs an increase correction on a fuel amount to be supplied to the engine.


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