Title:
排気処理装置
Document Type and Number:
Japanese Patent JP7064376
Kind Code:
B2
Abstract:
To suppress increase of frequency of regeneration of a PM removal filter, when estimating an accumulation amount of PM using differential pressure.SOLUTION: A control device performs control processing including a step (S100) of acquiring differential pressure ΔP, a step (S102) of calculating a first PM accumulation amount, a step (S104) of calculating a PM discharge amount, a step (S106) of calculating a second PM accumulation amount, a step (S108) of selecting larger one of the first PM accumulation amount and the second PM accumulation amount as an estimation value, a step (S110) of calculating an upper limit value of the PM accumulation amount, a step (S112) of selecting smaller one of the estimation value and the upper limit value as a PM accumulation amount for determining regeneration, and a step (S116) of performing regeneration control when the PM accumulation amount for determining regeneration is a regeneration determination value or more (YES in S114).SELECTED DRAWING: Figure 3
Inventors:
Hiroaki Endo
Takayuki Kitano
Takayuki Kitano
Application Number:
JP2018092387A
Publication Date:
May 10, 2022
Filing Date:
May 11, 2018
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
TOYOTA JIDOSHA KABUSHIKI KAISHA
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F01N3/023
Domestic Patent References:
| JP7317529A | ||||
| JP2006002672A | ||||
| JP2013096320A | ||||
| JP2016011603A |
Foreign References:
| US20150267590 | ||||
| DE102011084864A1 |
Attorney, Agent or Firm:
Fukami patent office