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:
Aug. 05, 2025
Filed:
Jan. 20, 2023
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Sagamihara, JP;
Ko Takayanagi, Sagamihara, JP;
Yosuke Kitamura, Sagamihara, JP;
Takayoshi Kuramoto, Sagamihara, JP;
Ryo Sase, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara, JP;
Abstract
An engine control device includes: an injection command unit for outputting a fuel injection amount command value; a first calculation unit for outputting a fuel injection amount obtained by FB calculation based on an engine speed deviation to the injection command unit as a basic fuel injection amount; and a second calculation unit for outputting a fuel injection amount obtained by FF calculation based on an engine load at present of an engine to the injection command unit as a FF fuel injection amount. The fuel injection amount command value switches from a fuel injection amount calculated based on the basic fuel injection amount by the injection command unit to a fuel injection amount calculated based on a value obtained by adding the FF fuel injection amount to the basic fuel injection amount, if it is determined that a load application state has occurred in which the engine load before a prescribed time, which is not greater than a prescribed value, increases by not less than a variation threshold.