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:
Jun. 27, 2006
Filed:
Sep. 10, 2004
Shouichirou Ueno, Yokohama, JP;
Junichi Kawashima, Yokosuka, JP;
Makoto Otake, Yokohama, JP;
Terunori Kondou, Yokohama, JP;
Naoya Tsutsumoto, Yokohama, JP;
Takao Inoue, Yokohama, JP;
Toshimasa Koga, Yokohama, JP;
Shouichirou Ueno, Yokohama, JP;
Junichi Kawashima, Yokosuka, JP;
Makoto Otake, Yokohama, JP;
Terunori Kondou, Yokohama, JP;
Naoya Tsutsumoto, Yokohama, JP;
Takao Inoue, Yokohama, JP;
Toshimasa Koga, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A regeneration control device, which regenerates a filter () for trapping particulate matter in exhaust gas from an engine (), is disclosed. The filter () supports a catalyst which oxidizes unburnt components in the exhaust gas. The regeneration control device has a temperature sensor () which detects a filter inlet exhaust gas temperature (Tdpf_in_mea); and a microcomputer (). The microcomputer () is programmed to compute a filter outlet exhaust gas temperature (Tdpf_out_cal), not including temperature rise due to oxidation reaction of unburnt components based on the detected inlet exhaust gas temperature; compute the filter bed temperature (Tbed_cal) based on the detected inlet exhaust gas temperature and computed outlet exhaust gas temperature; compute a temperature rise (ΔThc) due to oxidation reaction of unburnt components; correct the bed temperature based on the computed temperature rise (ΔThc).