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. 17, 2018
Filed:
May. 16, 2016
Mazda Motor Corporation, Aki-gun, Hiroshima, JP;
Naotoshi Shirahashi, Hiroshima, JP;
Tsunehiro Mori, Aki-gun, JP;
Takahiro Yamamoto, Aki-gun, JP;
Takeshi Matsubara, Hiroshima, JP;
Mazda Motor Corporation, Aki-gun, Hiroshima, JP;
Abstract
A fuel injection control apparatus for an engine in which fuel is injected into a cylinder a plurality of times to cause a plurality of combustions is provided, which includes a controller for controlling a time interval of performing the plurality of fuel injections so that a waveform indicating a frequency characteristic of a combustion pressure wave that is produced by each of the plurality of combustions has valley points at frequencies within a plurality of resonant frequency bands of a structural system of the engine, respectively.