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:
Jul. 02, 2024
Filed:
Mar. 27, 2020
Hitachi Astemo, Ltd., Hitachinaka, JP;
Yoshihiro Sukegawa, Tokyo, JP;
Masayuki Saruwatari, Hitachinaka, JP;
Shinya Sato, Hitachinaka, JP;
Yoshiaki Nagasawa, Hitachinaka, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
Provided is an internal combustion engine control unit that controls an engine by detecting combustion characteristics with a simple configuration robust to disturbance such as noise. Therefore, the internal combustion engine control unit (ECU) of the present embodiment includes a rotational speed calculation unitthat calculates a crank rotational speed of an internal combustion engine (engine); an extreme value timing calculation unitthat calculates an extreme value timing of the crank rotational speed calculated by the rotational speed calculation unit; and a combustion state estimation unit (combustion phase calculation unit) that estimates a combustion state based on the extreme value timing of the crank speed calculated by the extreme value timing calculation unit