Title:
内燃機関の制御装置
Document Type and Number:
Japanese Patent JP5768892
Kind Code:
B2
Abstract:
An SCR system (8) is arranged in an exhaust path (4) of an internal combustion engine (2) to which the invention is applied, and a particulate filter (14) is arranged downstream thereof. A control apparatus (16) includes temperature controlling means for controlling a temperature of an element portion of the particulate sensor. The temperature controlling means performs control to increase the temperature of the element portion of the particulate sensor to a first temperature range (T1), when a cumulative value (t) of a time for which the particulate sensor is used in a specific operating state reaches a reference time (t1), after detection of a particulate amount by the particulate sensor has started this time. Here, the specific operating state is an operating state set taking into account an operating state in which urea related substances tend to be discharged to a downstream side of the SCR system (8). Also, the first temperature range (T1) is a temperature that is higher than a temperature at which the urea related substances decompose, and lower than a temperature at which the particulates are burned off.
Inventors:
Tatsuhiro Hashida
Daiki Nishijima
Daiki Nishijima
Application Number:
JP2013540545A
Publication Date:
August 26, 2015
Filing Date:
October 26, 2011
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F01N3/023; F01N3/08
Domestic Patent References:
| JP2010151553A | ||||
| JP2010229957A | ||||
| JP2010275917A | ||||
| JP5549780B2 |
Attorney, Agent or Firm:
Hideki Takahashi
Mamoru Takada
Hidekazu Onishi
Tamaki Otsuka
Mamoru Takada
Hidekazu Onishi
Tamaki Otsuka