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:
Jun. 21, 2022

Filed:

Oct. 15, 2020
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

Rajesh N. Nair, Mossville, IL (US);

Samuel Were, Peoria, IL (US);

James Harris Mutti, Germantown Hills, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/02 (2006.01); F02B 37/24 (2006.01); F02D 41/10 (2006.01); F02D 41/14 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02D 41/027 (2013.01); F02B 37/24 (2013.01); F02D 41/0007 (2013.01); F02D 41/024 (2013.01); F02D 41/10 (2013.01); F02D 41/1446 (2013.01); F02D 2200/0406 (2013.01); F02D 2200/0614 (2013.01); F02D 2200/101 (2013.01);
Abstract

A controller may determine that a regeneration process associated with an engine of a machine is active. The controller may obtain, based on determining that the regeneration process is active, information concerning a speed of the engine, information concerning a load of the engine, and information concerning a fuel rate of the engine. The controller may select, based on the information concerning the speed of the engine, the information concerning the load of the engine, and the information concerning the fuel rate of the engine, a control process, of a plurality of control processes, to control an intake manifold absolute pressure (IMAP) of the engine to facilitate the regeneration process. The controller may cause, according to the selected control process, adjustment of one or more components of a variable geometry turbocharger (VGT) of the engine and an intake throttle valve (ITV) of the engine.


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