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:
Dec. 12, 2006
Filed:
Sep. 16, 2004
Makoto Otake, Yokohama, JP;
Junichi Kawashima, Yokosuka, JP;
Naoya Tsutsumoto, Yokohama, JP;
Terunori Kondou, Yokohama, JP;
Takao Inoue, Yokohama, JP;
Shouichirou Ueno, Yokohama, JP;
Toshimasa Koga, Yokohama, JP;
Makoto Otake, Yokohama, JP;
Junichi Kawashima, Yokosuka, JP;
Naoya Tsutsumoto, Yokohama, JP;
Terunori Kondou, Yokohama, JP;
Takao Inoue, Yokohama, JP;
Shouichirou Ueno, Yokohama, JP;
Toshimasa Koga, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
To regenerate a diesel particulate filter () which traps particulate matter contained in the exhaust gas of a diesel engine (), a controller () raises the temperature of the exhaust gas through fuel injection control of a fuel injector (), and thus burns the particulate matter trapped in the filter (). The controller () cumulatively calculates the time during which the temperature of the filter () exceeds a target temperature as an effective regeneration time. By estimating the amount of particulate matter remaining in the filter () on the basis of the effective regeneration time, the controller () estimates the amount of remaining particulate matter with a high degree of precision and without consuming energy, whereupon regeneration of the filter () through fuel injection control ends.