Title:
パティキュレートフィルタの状態検知装置
Document Type and Number:
Japanese Patent JP4762043
Kind Code:
B2
Abstract:
A particulate filter is provided in an exhaust system of the engine. Parameter values correlated with a flow amount of exhaust gas of the engine are determined, and differential pressure between upstream and downstream sides of the particulate filter is determined. The ratio of a variation rate of the parameter values correlated with the exhaust flow amount to a variation rate of the differential pressure is compared with a predetermined threshold value during transitional operation of the engine to determine the state of the particulate filter.
Inventors:
Hirono Nishino
Kiyoshi Saito
Gosho Eisaku
Kiyoshi Saito
Gosho Eisaku
Application Number:
JP2006123168A
Publication Date:
August 31, 2011
Filing Date:
April 27, 2006
Export Citation:
Assignee:
Honda motor industry stock company
International Classes:
F01N3/02; B01D46/42; F01N3/023; F02D45/00
Domestic Patent References:
| JP2003166411A | ||||
| JP2004044443A | ||||
| JP2005351249A |
Attorney, Agent or Firm:
Patent business corporation ofh patent office