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:
Jan. 29, 2008
Filed:
Aug. 24, 2005
Toshimasa Koga, Yokohama, JP;
Junichi Kawashima, Yokosuka, JP;
Makoto Ootake, Yokohama, JP;
Masahiko Nakano, Machida, JP;
Terunori Kondou, Yokohama, JP;
Shouichirou Ueno, Yokohama, JP;
Naoya Tsutsumoto, Yokohama, JP;
Toshimasa Koga, Yokohama, JP;
Junichi Kawashima, Yokosuka, JP;
Makoto Ootake, Yokohama, JP;
Masahiko Nakano, Machida, JP;
Terunori Kondou, Yokohama, JP;
Shouichirou Ueno, Yokohama, JP;
Naoya Tsutsumoto, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
A particulate matter deposit amount accumulated in a diesel particulate filter () is calculated as a first particulate matter deposit amount from a pressure loss of the filter () (S). The particulate matter deposit amount accumulated in the filter () is calculated as a second particulate matter deposit amount from another parameter (S). It is determined whether or not there is front end blockage of the filter () based on a comparison between the first particulate matter deposit amount and second particulate matter deposit amount (S, S). When there is a front end blockage of the filter (), the regeneration device is controlled to perform regeneration of the filter () for a longer period than the normal regeneration period of the filter () (S).