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:
Jun. 28, 2022
Filed:
Mar. 04, 2020
Mazda Motor Corporation, Hiroshima, JP;
Masanari Sueoka, Hiroshima, JP;
Junichi Taga, Higashihiroshima, JP;
Hideki Omori, Hiroshima, JP;
Keiji Maruyama, Hiroshima, JP;
Tatsuhiro Tokunaga, Aki-gun, JP;
Takuya Ohura, Hiroshima, JP;
Toru Miyamoto, Higashihiroshima, JP;
Tomohiro Nishida, Hiroshima, JP;
Kenji Tanimura, Hiroshima, JP;
Shinji Takayama, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
The control apparatus for a compression ignition type engine includes a plurality of cylinder inner pressure sensors that detect pressure in each cylinder, and a combustion control unit. The combustion control unit corrects a target fuel injection amount of each cylinder by an injector based on a deviation between a predicted combustion period that is a period from an ignition timing by an ignition plug to a predetermined mass combustion timing and that is obtained based on a preset combustion model, and an actual combustion period that is a period from the ignition timing by the ignition plug to an actual combustion timing and that is obtained based on cylinder inner pressure, such that the period from the ignition timing by the ignition plug to the predetermined mass combustion timing, which is the timing when fuel having a predetermined mass ratio combusts, is equalized in each cylinder.