Title:
EXHAUST EMISSION CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2021148071
Kind Code:
A
Abstract:
To effectively remove NOx while preventing the deterioration of fuel economy.SOLUTION: An exhaust emission control device of one embodiment comprises a control device for determining a first injection amount being an injection amount of a reductant from a first reductant injection device, and a second injection amount being an injection amount of a reductant from a second reductant injection device. The control device performs continuous regeneration control including first control for determining a target combustion speed indicating a target value of a combustion amount per unit time of particulate substances collected by a filter, and second control for determining a target NO2 concentration indicating a target value of a concentration of NO2 which should be supplied to the filter on the basis of a temperature of the filter and the target combustion speed.SELECTED DRAWING: Figure 1
Inventors:
UTSUMI NAOKO
Application Number:
JP2020049534A
Publication Date:
September 27, 2021
Filing Date:
March 19, 2020
Export Citation:
Assignee:
HINO MOTORS LTD
International Classes:
F01N3/023; B01D53/94; F01N3/035; F01N3/08; F01N3/20; F01N3/24; F01N9/00
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Daisuke Okumura
Yoshiki Kuroki
Daisuke Okumura