公开(公告)号：US20170122178A1

公开(公告)日：2017-05-04

申请号：US15334737

申请日：2016-10-26

申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

发明人： Masanori HATTA ,  Hiroaki ISHIKAWA

IPC分类号： F01N9/00 ,  F01N3/20 ,  F01N3/023

CPC分类号： F01N9/002 ,  F01N3/021 ,  F01N3/023 ,  F01N3/025 ,  F01N3/206 ,  F01N3/2066 ,  F01N3/208 ,  F01N11/00 ,  F01N13/009 ,  F01N2430/085 ,  F01N2610/02 ,  F01N2610/1493 ,  F01N2900/0421 ,  F01N2900/1404 ,  F01N2900/1606 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

摘要： An exhaust gas cleaning apparatus for an internal combustion engine that is mounted on a vehicle includes an exhaust passage that is connected to the internal combustion engine, a filter that collects particulate matter in exhaust gas, an NOx reducing catalyst, a dosing valve that injects urea solution into the exhaust passage, and a controller that performs a filter regeneration process in response to a request for the filter regeneration process. The filter regeneration process includes a first filter regeneration process that is performed during an idle operation of the internal combustion engine and a second filter regeneration process that is performed with the vehicle traveling. When the first filter regeneration process has been performed for a predetermined number of times without being intervened by the second filter regeneration process, the controller does not perform the first filter regeneration process even when a request for the filter regeneration process is made.