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. 21, 2012
Filed:
Nov. 12, 2008
Masatsugu Sakimoto, Frankfurt, DE;
Hiromu Sugano, Higashi-hiroshimashi, JP;
Masaru Yamamoto, Hatsukaichi, JP;
Shoichi Toyokawa, Higashi-hiroshimashi, JP;
Masashi Naono, Hiroshima, JP;
Kouta Matsue, Higashi-hiroshimashi, JP;
Chikara Ishihara, Aki-gun, JP;
Hiroaki Ishida, Hatsukaichi, JP;
Daisuke Higaki, Hiroshima, JP;
Masatsugu Sakimoto, Frankfurt, DE;
Hiromu Sugano, Higashi-hiroshimashi, JP;
Masaru Yamamoto, Hatsukaichi, JP;
Shoichi Toyokawa, Higashi-hiroshimashi, JP;
Masashi Naono, Hiroshima, JP;
Kouta Matsue, Higashi-hiroshimashi, JP;
Chikara Ishihara, Aki-gun, JP;
Hiroaki Ishida, Hatsukaichi, JP;
Daisuke Higaki, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A method of controlling a system having an internal combustion engine, a filter in an exhaust passage, a reduction catalyst downstream of said filter capable of reducing nitrate oxide contained in the exhaust gas with reductant supplied thereto is provided. The method may include, in a first mode, combusting a first amount of particulate matter trapped in said filter and supplying a first amount of reductant to said reduction catalyst when an amount of particulate matter trapped in said filter is less than a predetermined trapping amount (α). The method may further include, in a second mode, combusting a second amount of particulate matter that is greater than said first amount of particulate matter and supplying a second amount of reductant to said reduction catalyst when an amount of particulate matter trapped in said filter is equal to or greater than said predetermined trapping amount (α).