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:
Nov. 30, 2010
Filed:
Nov. 09, 2006
Shigeto Yahata, Obu, JP;
Tsukasa Kuboshima, Okazaki, JP;
Satoru Nosaka, Nagoya, JP;
Kazuharu Tochikawa, Kariya, JP;
Shigeto Yahata, Obu, JP;
Tsukasa Kuboshima, Okazaki, JP;
Satoru Nosaka, Nagoya, JP;
Kazuharu Tochikawa, Kariya, JP;
Denso Corporation, Kariya, JP;
Abstract
A method is disclosed for estimating an amount of deposited particulates (PM) in a collector of an internal combustion engine. The method includes estimating the amount of inflow of PM into the collector and estimating a basic amount of decreased PM that flows into the collector and is burned and decreased. The method also includes estimating the amount of ash deposited on the collector. The method further includes correcting the basic amount of decreased PM based on the estimated amount of ash. Moreover, the method includes estimating an amount of deposited PM by a history expression based on the estimated amount of inflow of PM and the corrected amount of decreased PM. A related device is also disclosed.