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. 23, 2021
Filed:
Dec. 16, 2019
Mazda Motor Corporation, Hiroshima, JP;
Tatsuhiro Tokunaga, Aki-gun, JP;
Masanari Sueoka, Hiroshima, JP;
Keiji Maruyama, Hiroshima, JP;
Tomohiro Nishida, Hiroshima, JP;
Takuya Ohura, Hiroshima, JP;
Toru Miyamoto, Higashihiroshima, JP;
Junichi Taga, Higashihiroshima, JP;
Hideki Omori, Hiroshima, JP;
Kenji Tanimura, Hiroshima, JP;
Hiroyuki Yabe, Aki-gun, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A control device for an engine is provided, which includes a combustion controlling module, and an ignition retard determining module configured to determine whether there is a request for an ignition retard for retarding an ignition timing of an ignition plug. When the controlling module controls the ignition plug and an injector so that the SPCCI combustion is performed and there is not the ignition retard request, the controlling module executes a control in which the entire fuel to be injected in one cycle is injected in an intake stroke and a jump-spark ignition is carried out at a basic ignition timing, and when there is the ignition retard request, the controlling module executes a control in which an injection is performed in an intake stroke, a portion of the entire fuel is injected in a compression stroke, and the ignition timing is retarded from the basic ignition timing.