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:
Dec. 17, 2004
Shouichirou Ueno, Yokohama, JP;
Jun-ichi Kawashima, Yokosuka, JP;
Masahiko Nakano, Machida, JP;
Terunori Kondou, Yokohama, JP;
Makoto Otake, Yokohama, JP;
Naoya Tsutsumoto, Yokohama, JP;
Toshimasa Koga, Yokohama, JP;
Shouichirou Ueno, Yokohama, JP;
Jun-ichi Kawashima, Yokosuka, JP;
Masahiko Nakano, Machida, JP;
Terunori Kondou, Yokohama, JP;
Makoto Otake, Yokohama, JP;
Naoya Tsutsumoto, Yokohama, JP;
Toshimasa Koga, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama-shi, JP;
Abstract
A regeneration control device which regenerates a filter () which traps particulate matter in the exhaust gas of an engine () is disclosed. The regeneration control device includes a first temperature sensor (), which detects one of an upstream temperature and a downstream temperature upstream and downstream of the filter () as a first temperature (Tin, Tout); a second temperature sensor (), which detects the other temperature as a second temperature (Tin, Tout); and a microcomputer. The microcomputer programmed to compute an estimated value (Tbede) for the second temperature based on the first temperature detected by the first temperature sensor (), compute an estimated bed temperature (Tbed) of the filter based on the second temperature detected by a second temperature sensor () and the estimated value (Tbede) for the second temperature, and perform engine control for increasing the temperature of the exhaust gas based on the estimated bed temperature (Tbed).