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:
May. 21, 2024

Filed:

Feb. 10, 2020
Applicant:

Yanmar Power Technology Co., Ltd., Osaka, JP;

Inventors:

Masahiro Itani, Osaka, JP;

Hideo Shiomi, Osaka, JP;

Keiji Kunisawa, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 26/49 (2016.01); F02D 41/00 (2006.01); F02D 41/22 (2006.01); F02M 26/05 (2016.01);
U.S. Cl.
CPC ...
F02M 26/05 (2016.02); F02D 41/0065 (2013.01); F02M 26/49 (2016.02); F02D 2041/227 (2013.01); F02D 2250/26 (2013.01);
Abstract

An engine control device controls an engine provided with an EGR device. The engine control device is provided with an abnormality determining unit, a restricted operation unit, and a restriction released operation unit. The abnormality determining unit determines whether an abnormality has arisen in the EGR device. The restricted operation unit performs restricted operation in which some functions of the engine are restricted, if the abnormality determining unit has determined that an abnormality has arisen in the EGR device. If a manipulation to release the restricted operation has been performed, the restriction released operation unit switches from restricted operation to restriction released operation in which the restrictions on some of the functions of the engine are released, and performs said restriction released operation.


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