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:
Sep. 02, 2025

Filed:

Nov. 08, 2022
Applicant:

Komatsu Ltd., Tokyo, JP;

Inventors:

Yoshitoshi Nagado, Tokyo, JP;

Akira Ito, Tokyo, JP;

Assignee:

KOMATSU LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 11/00 (2006.01); F01N 9/00 (2006.01);
U.S. Cl.
CPC ...
F01N 11/00 (2013.01); F01N 9/002 (2013.01); F01N 2550/04 (2013.01); F01N 2900/0421 (2013.01); F01N 2900/0422 (2013.01); F01N 2900/1606 (2013.01); F01N 2900/1611 (2013.01);
Abstract

A treatment device an acquisition unit configured to acquire information indicating an estimated value of a deposition amount of ash deposited on a filter that collects a particulate matter in an exhaust gas of an engine, and information indicating an atmospheric pressure, a calculation unit configured to calculate an allowable ash deposition amount threshold value corresponding to an allowable ash deposition amount that changes according to the atmospheric pressure, a determination unit configured to determine that the filter needs to be cleaned in a case where the estimated value is greater than or equal to the allowable ash deposition amount threshold value, and a notification unit configured to issue a notification that the filter needs to be cleaned in a case where it is determined that the filter needs to be cleaned.


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