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:
Apr. 10, 2012
Filed:
Feb. 20, 2009
Toshiaki Nishimoto, Hiroshima, JP;
Naohiro Yamaguchi, Hiroshima, JP;
Masahisa Yamakawa, Hiroshima, JP;
Takashi Youso, Hiroshima, JP;
Kouji Shishime, Hiroshima, JP;
Hiroaki Abe, Hiroshima, JP;
Hiroki Morimoto, Hiroshima, JP;
Naoya Matsuo, Higashihiroshima, JP;
Naoya Watanabe, Hiroshima, JP;
Toshiaki Nishimoto, Hiroshima, JP;
Naohiro Yamaguchi, Hiroshima, JP;
Masahisa Yamakawa, Hiroshima, JP;
Takashi Youso, Hiroshima, JP;
Kouji Shishime, Hiroshima, JP;
Hiroaki Abe, Hiroshima, JP;
Hiroki Morimoto, Hiroshima, JP;
Naoya Matsuo, Higashihiroshima, JP;
Naoya Watanabe, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A system and method of controlling an internal combustion engine are provided. The method may include closing said intake valve at a timing in a first range, which is before a maximum charge closing timing with which an amount of air inducted into said cylinder from said air intake passage would be maximized at a given engine speed, during a cylinder cycle when a desired amount of air to be inducted into said cylinder is less than or equal to a predetermined air amount at the given engine speed. The method may further include closing said intake valve at a timing in a second range, which is after said maximum charge closing timing and separated from said first range during a cylinder cycle, when a desired amount of air to be inducted into said cylinder is greater than said predetermined air amount at the given engine speed.