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:
Sep. 16, 2014
Filed:
Feb. 07, 2012
Kazuhiro Nagatsu, Hiroshima, JP;
Masahisa Yamakawa, Hiroshima, JP;
Kouhei Iwai, Hiroshima, JP;
Yoshihisa Nou, Hiroshima, JP;
Noriyuki Ota, Hiroshima, JP;
Kazutoyo Watanabe, Higashihiroshima, JP;
Naoya Watanabe, Higashihiroshima, JP;
Hiroyuki Kurita, Hiroshima, JP;
Shuji Oba, Kariya, JP;
Tatsuya Koga, Higashihiroshima, JP;
Kazuhiro Nagatsu, Hiroshima, JP;
Masahisa Yamakawa, Hiroshima, JP;
Kouhei Iwai, Hiroshima, JP;
Yoshihisa Nou, Hiroshima, JP;
Noriyuki Ota, Hiroshima, JP;
Kazutoyo Watanabe, Higashihiroshima, JP;
Naoya Watanabe, Higashihiroshima, JP;
Hiroyuki Kurita, Hiroshima, JP;
Shuji Oba, Kariya, JP;
Tatsuya Koga, Higashihiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A control device of a spark-ignition gasoline engine is provided. The control device includes a controller for operating the engine body by controlling at least a fuel injection valve, an ignition plug, and a fuel pressure variable mechanism. Depending on the engine load range, the controller sets the combustion mode to a compression-ignition mode or a spark-ignition mode. In each mode, the controller also controls the fuel pressure, and the timing of fuel injection and ignition. The controller may also performs external EGR control in each mode.