Title:
内燃機関の制御装置
Document Type and Number:
Japanese Patent JP5895884
Kind Code:
B2
Abstract:
A controlling device for internal combustion engines provided with a filter downstream of a catalyst having an oxidizing function comprises a controlling unit that maintains, when a PM regeneration request for the filter is satisfied, the exhaust temperature for a fixed period at a sulfur removal temperature that is lower than a PM oxidization starting temperature and that is higher than the maximum temperature reached by the exhaust or the bed of the catalyst from the time of completion of the previous PM regeneration to the current PM regeneration request, and then sets the exhaust temperature to be higher than the PM oxidation starting temperature. Thus, rapid removal of sulfur is avoided and thereby generation of white smoke can be suppressed.
More Like This:
Inventors:
Goto Isamu
Application Number:
JP2013059016A
Publication Date:
March 30, 2016
Filing Date:
March 21, 2013
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F01N3/20; F01N3/023; F01N3/035; F01N3/24
Domestic Patent References:
| JP7189653A | ||||
| JP2009299572A | ||||
| JP200289327A | ||||
| JP2004144072A |
Attorney, Agent or Firm:
Shuhei Katayama
Toshiyuki Hatta
High Yoshitaka Hayashi
Toshiyuki Hatta
High Yoshitaka Hayashi