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.
Patent No.:
Date of Patent:
Feb. 18, 2025
Filed:
Feb. 15, 2022
Applicant:
Hitachi Astemo, Ltd., Hitachinaka, JP;
Inventors:
Assignee:
Hitachi Astemo, Ltd., Hitachinaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P 5/15 (2006.01); F02D 41/00 (2006.01);
U.S. Cl.
CPC ...
F02P 5/1502 (2013.01); F02D 41/009 (2013.01); F02D 2200/024 (2013.01); F02D 2200/101 (2013.01);
Abstract
An internal combustion engine control device includes: a rotation speed calculating unit that calculates crank rotation speeds of an engine; an extreme timing calculating unit that calculates an extreme timing of the crank rotation speeds; and an average rotation speed calculating unit that calculates an average rotation speed of the crank rotation speeds; and a combustion state estimating unit that estimates a combustion state in the engine based on the extreme timing and the average rotation speed.