Title:
EXHAUST PURIFICATION DEVICE, VEHICLE, AND EXHAUST PURIFICATION CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/172356
Kind Code:
A1
Abstract:
An exhaust purification device that executes a regeneration process for a trapping unit in which particulate matter is trapped, said exhaust purification device comprising: a NOx selective reduction catalyst that is arranged inside an exhaust pipe and that adsorbs a reduction agent, thereby purifying nitrogen oxides in an exhaust gas; a NOx occlusion/reduction catalyst that is arranged upstream from the NOx selective reduction catalyst inside the exhaust pipe in the exhaust direction in which the exhaust gas flows, and that occludes nitrogen oxides in the exhaust gas; a determination unit for determining a target value for a reduction agent adsorption amount for the NOx selective reduction catalyst in accordance with the amount of nitrogen oxides occluded when the regeneration process is executed; and a regeneration control unit for determining a start timing for the regeneration process in accordance with the target adsorption amount.
Inventors:
ANODA HIROSHI (JP)
Application Number:
PCT/JP2019/009012
Publication Date:
September 12, 2019
Filing Date:
March 07, 2019
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
International Classes:
F01N3/025; B01D53/94; F01N3/08; F01N3/24; F01N3/28; F02D41/04
Foreign References:
| JP2015102088A | 2015-06-04 | |||
| JP2015108359A | 2015-06-11 | |||
| JP2010249076A | 2010-11-04 | |||
| US20150013309A1 | 2015-01-15 |
Attorney, Agent or Firm:
WASHIDA, Kimihito (JP)
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